Categories: Malware

MSIL/Kryptik.GRO (file analysis)

The MSIL/Kryptik.GRO 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 MSIL/Kryptik.GRO virus can do?

SetUnhandledExceptionFilter detected (possible anti-debug)
Creates RWX memory
Guard pages use detected – possible anti-debugging.
Dynamic (imported) function loading detected
Enumerates the modules from a process (may be used to locate base addresses in process injection)
Reads data out of its own binary image
CAPE extracted potentially suspicious content
The binary likely contains encrypted or compressed data.
.NET file is packed/obfuscated with SmartAssembly
Authenticode signature is invalid
Anomalous .NET characteristics

How to determine MSIL/Kryptik.GRO?


File Info:
name: 952F9ED49AE3DE83FB34.mlwpath: /opt/CAPEv2/storage/binaries/0201f9be5f21df761dffe4449e924b4c76601ff4bf2ec92cbdc88c3ef558e693crc32: 0008EF21md5: 952f9ed49ae3de83fb348dcb15356549sha1: a9db01c12ed8e99f22df481ac77ed7b9f73d5c89sha256: 0201f9be5f21df761dffe4449e924b4c76601ff4bf2ec92cbdc88c3ef558e693sha512: b58e6c5c7a2c3321fa9849fc5c3f223ad7d738e136f43bbf4234c359a2ca9f33f0b3424c78f0b8aac08bc6b2838767cad5cb8d579ffb0006e8f135b8eac9a77assdeep: 12288:R9J+DfFnXWNowiTgQdDJuxaDyqbx0t+gS6OkT6b87G2:F+DfFnXWNowinug2xt1O/b8type: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1F5452988BD2B3DA7CD5D1137A8638369057741750E82C6EF9A60FD4B1D32BF84AF2492sha3_384: 08055914c8470524ce650ef2d945f1e972c1e3cff8bb630e2366ee3132ade497cbf2e8525dca5e6152abac07288a8cddep_bytes: ff250020400000000000000000000000timestamp: 2014-12-04 17:27:27
Version Info:
Translation: 0x0000 0x04b0FileDescription:  FileVersion: 0.0.0.0InternalName: 11111.exeLegalCopyright:  OriginalFilename: 11111.exeProductVersion: 0.0.0.0Assembly Version: 0.0.0.0

MSIL/Kryptik.GRO also known as:

Bkav	W32.AIDetectNet.01
Elastic	malicious (high confidence)
MicroWorld-eScan	Gen:Heur.MSIL.Bladabindi.1
FireEye	Generic.mg.952f9ed49ae3de83
McAfee	Artemis!952F9ED49AE3
Cylance	Unsafe
Sangfor	Suspicious.Win32.Save.a
K7AntiVirus	Trojan ( 0055e3e01 )
K7GW	Trojan ( 0055e3e01 )
Cybereason	malicious.49ae3d
Symantec	ML.Attribute.HighConfidence
tehtris	Generic.Malware
ESET-NOD32	a variant of MSIL/Kryptik.GRO
APEX	Malicious
Kaspersky	HEUR:Trojan.Win32.Generic
BitDefender	Gen:Heur.MSIL.Bladabindi.1
NANO-Antivirus	Trojan.Win32.RiskGen.dkbzbk
Avast	FileRepMalware [Trj]
Ad-Aware	Gen:Heur.MSIL.Bladabindi.1
Sophos	ML/PE-A
Comodo	Malware@#174rqp4t0lq9a
McAfee-GW-Edition	BehavesLike.Win32.Generic.tm
Emsisoft	Gen:Heur.MSIL.Bladabindi.1 (B)
Ikarus	Trojan.DNGuard
Avira	HEUR/AGEN.1221650
MAX	malware (ai score=82)
Kingsoft	Win32.Troj.GenericKD.v.(kcloud)
Microsoft	Trojan:Win32/Dynamer!ac
GData	Gen:Heur.MSIL.Bladabindi.1
Cynet	Malicious (score: 100)
Acronis	suspicious
Malwarebytes	Backdoor.Agent.PGen
Rising	Trojan.Generic/MSIL@AI.100 (RDM.MSIL:ttADnP6oysDcCxdVkvwEWA)
SentinelOne	Static AI – Malicious PE
MaxSecure	Trojan.Malware.300983.susgen
BitDefenderTheta	Gen:NN.ZemsilF.34638.in0@aeLfZ7d
AVG	FileRepMalware [Trj]
CrowdStrike	win/malicious_confidence_90% (D)