Categories: Malware

About “Win32:Dropper-NJA [Drp]” infection

The Win32:Dropper-NJA [Drp] is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

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What Win32:Dropper-NJA [Drp] virus can do?

Sample contains Overlay data
Uses Windows utilities for basic functionality
Reads data out of its own binary image
Drops a binary and executes it
Unconventionial language used in binary resources: Korean
The binary likely contains encrypted or compressed data.
Authenticode signature is invalid
Uses Windows utilities to create a scheduled task
Deletes executed files from disk
Yara rule detections observed from a process memory dump/dropped files/CAPE

How to determine Win32:Dropper-NJA [Drp]?


File Info:
name: A2142732A086B634BF3C.mlwpath: /opt/CAPEv2/storage/binaries/7ac487f019ded9ed825b7b81fa357c982f0dd4c4bd8bb6f00d3777bf8fe2eedfcrc32: 52FE22A2md5: a2142732a086b634bf3c563dff15417asha1: 519526e4afe7733d15d3e6602d501c82937ffb1fsha256: 7ac487f019ded9ed825b7b81fa357c982f0dd4c4bd8bb6f00d3777bf8fe2eedfsha512: a886cdec468ea9a24e993370c7fa49057a1dde4e764ce43372aec0fe355a0ce7967a020ac5143c1f7b4fe0e2ac8faac0a884a0b35f7ab033f6c4658b474ec88fssdeep: 6144:pzwArTEDSCs5wL0DKlpn/URBudL7qRBpkvfsModogZ/SvnDTH9QRi:pMmQDSCs5wo0e8L7qRbQUugennHGitype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1F984CE213650C075E36907314956FAF44AA9AD3914D8E94FF7387E3A6E712839B3328Fsha3_384: 23f1a17bcfab92cc73f2e8e886d0ceccafec3eb72049f9457cffff968266342726ac5f068e51b19da2791d2989bfc20fep_bytes: e86a710000e979feffff8bff558bec81timestamp: 2013-10-19 08:55:32
Version Info:
0: [No Data]

Win32:Dropper-NJA [Drp] also known as:

Bkav	W32.AIDetectMalware
Elastic	malicious (high confidence)
MicroWorld-eScan	Gen:Heur.Mint.SP.Urelas.1
FireEye	Generic.mg.a2142732a086b634
CAT-QuickHeal	Trojan.Gupboot.G.mue
Skyhigh	BehavesLike.Win32.Corrupt.fh
Malwarebytes	Generic.Malware.AI.DDS
Zillya	Trojan.Urelas.Win32.42013
Sangfor	Trojan.Win32.Save.a
K7AntiVirus	Backdoor ( 0053e8561 )
K7GW	Trojan ( 004bb7de1 )
Cybereason	malicious.4afe77
Arcabit	Trojan.Mint.SP.Urelas.1
BitDefenderTheta	Gen:NN.ZexaF.36738.ymX@ayxu!RbO
tehtris	Generic.Malware
ESET-NOD32	a variant of Win32/Urelas.S
APEX	Malicious
Cynet	Malicious (score: 100)
Kaspersky	VHO:Trojan-Dropper.Win32.Plite.gen
BitDefender	Gen:Heur.Mint.SP.Urelas.1
NANO-Antivirus	Trojan.Win32.Wecod.ekcccv
Avast	Win32:Dropper-NJA [Drp]
Tencent	Trojan.Win32.Agent.aeq
Emsisoft	Gen:Heur.Mint.SP.Urelas.1 (B)
Baidu	Win32.Trojan.Urelas.a
F-Secure	Heuristic.HEUR/AGEN.1317530
DrWeb	Trojan.AVKill.33547
VIPRE	Gen:Heur.Mint.SP.Urelas.1
TrendMicro	Trojan.Win32.Urelas.SM
Trapmine	malicious.high.ml.score
Sophos	Troj/Urelas-Q
Ikarus	Trojan.Win32.Urelas
Jiangmin	Backdoor/Plite.x
Varist	W32/Urelas.BB.gen!Eldorado
Avira	HEUR/AGEN.1317530
MAX	malware (ai score=87)
Antiy-AVL	Trojan[Downloader]/Win32.Urelas.ab
Kingsoft	malware.kb.a.1000
Xcitium	TrojWare.Win32.Gupboot.AGQ@5t8mho
Microsoft	Trojan:Win32/Urelas.AA
ZoneAlarm	VHO:Trojan-Dropper.Win32.Plite.gen
GData	Win32.Trojan.PSE.1AXKBGR
AhnLab-V3	Malware/Win.Trojan.R420193
Acronis	suspicious
McAfee	BackDoor-FBLQ!A2142732A086
VBA32	SScope.Backdoor.Urelas.3114
Cylance	unsafe
Panda	Trj/Genetic.gen
TrendMicro-HouseCall	Trojan.Win32.Urelas.SM
Rising	Trojan.Gupboot!1.9CEA (CLASSIC)
Yandex	Trojan.GenAsa!xKw2C7frsLk
SentinelOne	Static AI – Malicious PE
Fortinet	W32/Urelas.O!tr
AVG	Win32:Dropper-NJA [Drp]
DeepInstinct	MALICIOUS
CrowdStrike	win/malicious_confidence_100% (D)