Overview

overview

10

Static

static

10

96fa2d60fb...71.exe

windows7-x64

10

96fa2d60fb...71.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171

  • Size

    436KB

  • Sample

    221001-3ncxjscbd9

  • MD5

    68921ea14e8cdfc8f8775263632802a0

  • SHA1

    12b5d5437cf20e1eba91826bec9411b0c69098ff

  • SHA256

    96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171

  • SHA512

    8161a10dc45457c5050623e10d2169725607285b480e42c9bb5c15110289991bdb28ec9cad86e42f95d3db3a1d21dfdc08d525e9258f4183482cbf9fe130f61d

  • SSDEEP

    12288:GcW7KEZlPzCy37oStLov/v6AYYYYYYYYYYYRYYYYYYYYYYL:KKiRzC0hsDYYYYYYYYYYYRYYYYYYYYYY

Score
10/10
darkcometguest16evasionpersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

cybergatenou4r.zapto.org:1604

Mutex

DC_MUTEX-Z78F0FY

Attributes
  • InstallPath

    explorer\update.exe

  • gencode

    iggsNm91khSs

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    update

Targets

    • Target

      96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171

    • Size

      436KB

    • MD5

      68921ea14e8cdfc8f8775263632802a0

    • SHA1

      12b5d5437cf20e1eba91826bec9411b0c69098ff

    • SHA256

      96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171

    • SHA512

      8161a10dc45457c5050623e10d2169725607285b480e42c9bb5c15110289991bdb28ec9cad86e42f95d3db3a1d21dfdc08d525e9258f4183482cbf9fe130f61d

    • SSDEEP

      12288:GcW7KEZlPzCy37oStLov/v6AYYYYYYYYYYYRYYYYYYYYYYL:KKiRzC0hsDYYYYYYYYYYYRYYYYYYYYYY

    Score
    10/10
    darkcometguest16evasionpersistencerattrojanupx

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Executes dropped EXE

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      evasion

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • Checks computer location settings

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

    • Loads dropped DLL

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

Hidden Files and Directories

2
T1158

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks