Overview

overview

10

Static

static

10

433eff0c91...bb.exe

windows7-x64

10

433eff0c91...bb.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb

  • Size

    635KB

  • Sample

    221202-17sq1aab52

  • MD5

    f9bb77131d91d3f78bbe5a3451774c5d

  • SHA1

    8fc14ed6bdcee4ccc1371cd4a47a74caea3419f5

  • SHA256

    433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb

  • SHA512

    05d157ed6295e96b42eaff1d74cd2c59d04f8f7b5b4a6aed272e8572212f45325ae42d0b0445ce7cdb0f43f68c34437952e32b463b04a21831a90cda0e0e21aa

  • SSDEEP

    12288:bpwABK90BOe/x9lPAYvxPQVjdsAY2XjWlnlpTMMXG91uhKIXn/bB:twAcu99lPzvxP+Bsz2XjWTRMQckkIXnl

Score
10/10
darkcometpersistencerattrojan

Malware Config

Targets

    • Target

      433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb

    • Size

      635KB

    • MD5

      f9bb77131d91d3f78bbe5a3451774c5d

    • SHA1

      8fc14ed6bdcee4ccc1371cd4a47a74caea3419f5

    • SHA256

      433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb

    • SHA512

      05d157ed6295e96b42eaff1d74cd2c59d04f8f7b5b4a6aed272e8572212f45325ae42d0b0445ce7cdb0f43f68c34437952e32b463b04a21831a90cda0e0e21aa

    • SSDEEP

      12288:bpwABK90BOe/x9lPAYvxPQVjdsAY2XjWlnlpTMMXG91uhKIXn/bB:twAcu99lPzvxP+Bsz2XjWTRMQckkIXnl

    Score
    10/10
    darkcometpersistencerattrojan

    • Darkcomet

      DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

4
T1012

System Information Discovery

5
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks