Categories: Trojan

TrojanDownloader:Win32/Coswid.A (file analysis)

The TrojanDownloader:Win32/Coswid.A 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 TrojanDownloader:Win32/Coswid.A virus can do?

Sample contains Overlay data
Performs HTTP requests potentially not found in PCAP.
Reads data out of its own binary image
CAPE extracted potentially suspicious content
Drops a binary and executes it
Authenticode signature is invalid
Uses Windows utilities to create a scheduled task
Behavioural detection: Injection (inter-process)
Attempts to modify proxy settings
Yara rule detections observed from a process memory dump/dropped files/CAPE

How to determine TrojanDownloader:Win32/Coswid.A?


File Info:
name: 06C3DCD732050BE5EBB9.mlwpath: /opt/CAPEv2/storage/binaries/28414cf6120e4ef72e3f4669a0824465405c2fd757b3502bdcd319c9d69af3bfcrc32: 8031E30Fmd5: 06c3dcd732050be5ebb9966de47d00c7sha1: 04e05a2d3890ea3cf50055b7e29349ac5c234808sha256: 28414cf6120e4ef72e3f4669a0824465405c2fd757b3502bdcd319c9d69af3bfsha512: 9d1fe71e63138cb9f919c2a05cbcf525d12cea6ef989c2a5cc960c22b3ecca4a58976b32c8fceb7f5dfe0a94ba0a8007f2eeb3fa11a672615da498cd9d713480ssdeep: 24576:KkWAAuqpObrwwyZIYuwGP7ssBPsU02BCR+8OyAxoL:KQwwyCYkzBEU0gCcNMtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T162359DD1E384D59EC51B0276CC7AE971A417BEAA4574860E252E3D2B35F7383206BE0Fsha3_384: f4195fac6a6a222c8dfeaa8db79cf5d3a08c4824fe46b458a9c8422b20cf51799b089b17f0ab8889598df537c48b6b00ep_bytes: e8e3feffff33c050505050e8d52d0000timestamp: 2011-05-28 16:04:29
Version Info:
0: [No Data]

TrojanDownloader:Win32/Coswid.A also known as:

Bkav	W32.AIDetectMalware
Lionic	Trojan.Win32.Small.4!c
DrWeb	Trojan.DownLoad2.37573
MicroWorld-eScan	Trojan.Zmutzy.Hory.1
FireEye	Generic.mg.06c3dcd732050be5
Skyhigh	GenericRXCI-CG!D62CD4AD2A91
McAfee	Artemis!06C3DCD73205
Malwarebytes	Generic.Malware/Suspicious
Zillya	Backdoor.Small.Win32.7244
K7AntiVirus	Trojan-Downloader ( 0055e3da1 )
Alibaba	Trojan:Win32/starter.ali1000030
K7GW	Trojan-Downloader ( 0055e3da1 )
CrowdStrike	win/malicious_confidence_100% (W)
Arcabit	Trojan.Zmutzy.Hory.1
BitDefenderTheta	AI:Packer.939200571E
VirIT	Backdoor.Win32.Small.KLK
Symantec	Trojan.Gen.MBT
Elastic	malicious (high confidence)
ESET-NOD32	multiple detections
Cynet	Malicious (score: 99)
APEX	Malicious
ClamAV	Win.Trojan.Small-13891
Kaspersky	Backdoor.Win32.Small.klk
BitDefender	Trojan.Zmutzy.Hory.1
NANO-Antivirus	Trojan.Win32.Small.reykq
Avast	Win32:Trojan-gen
Tencent	Win32.Backdoor.Small.Ktgl
Emsisoft	Trojan.Zmutzy.Hory.1 (B)
F-Secure	Trojan.TR/Downloader.Gen
VIPRE	Trojan.Zmutzy.Hory.1
TrendMicro	BKDR_SMALL.NPC
Sophos	Mal/Generic-R
SentinelOne	Static AI – Malicious SFX
Jiangmin	Backdoor/Small.hcp
Webroot	W32.Trojan.Gen
Varist	W32/CrazyCrunch-based!Maximus
Avira	TR/Downloader.Gen
Antiy-AVL	Trojan[Backdoor]/Win32.Small
Kingsoft	Win32.HeurC.KVM007.a
Xcitium	Malware@#1b5jfmwxmmb7u
Microsoft	TrojanDownloader:Win32/Coswid.A
ZoneAlarm	Backdoor.Win32.Small.klk
GData	Trojan.Zmutzy.Hory.1
Google	Detected
VBA32	Backdoor.Small
ALYac	Trojan.Zmutzy.Hory.1
Cylance	unsafe
Panda	Trj/CI.A
TrendMicro-HouseCall	BKDR_SMALL.NPC
Rising	Backdoor.Small!8.21B (TFE:5:tqp7ODMZHkQ)
Yandex	Trojan.GenAsa!oHT9roO5+Tk
Ikarus	Trojan-Downloader.Win32.Small
MaxSecure	Trojan.Malware.105363556.susgen
Fortinet	W32/Cowsid.A!tr
AVG	Win32:Trojan-gen
Cybereason	malicious.d3890e
DeepInstinct	MALICIOUS