Analysis

  • max time kernel
    150s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    01-12-2024 16:15

General

  • Target

    530f7ced4a53a9523609c6a7a1acc89e831e530653bb690b05487a217d2fcc6d.exe

  • Size

    2.8MB

  • MD5

    6d845955c67966fe45bc5c18ce252acc

  • SHA1

    6c594dca66db83d9409d02a0c48a7ef7a859d10e

  • SHA256

    530f7ced4a53a9523609c6a7a1acc89e831e530653bb690b05487a217d2fcc6d

  • SHA512

    026516b797b4aa405a316d2a2f90a15c4e0ad3fe353c7451ad7c21039b201418de1b9ec8c2a648381ef5eb38a1c7e92842e58ee0bffd03b77ffd72503033a505

  • SSDEEP

    49152:aELbVMTrOq4qQoJZdiyqcsxWjI9I/KTvUwhqh:a6b+f7QoPjIS/KTMwE

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

kbotdarkorbit.no-ip.org:10

189.186.45.5:10

192.168.1.196:10

Mutex

DC_MUTEX-RK3KJAL

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    CYK1BgXzzXZt

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies firewall policy service 3 TTPs 3 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\530f7ced4a53a9523609c6a7a1acc89e831e530653bb690b05487a217d2fcc6d.exe
    "C:\Users\Admin\AppData\Local\Temp\530f7ced4a53a9523609c6a7a1acc89e831e530653bb690b05487a217d2fcc6d.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:316
    • C:\Users\Admin\AppData\Local\Temp\Pinguino.exe
      C:\Users\Admin\AppData\Local\Temp\Pinguino.exe
      2⤵
      • Modifies WinLogon for persistence
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2176
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2292
      • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
        "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
        3⤵
        • Modifies firewall policy service
        • Executes dropped EXE
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2728
        • C:\Windows\SysWOW64\notepad.exe
          notepad
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2624
    • C:\Users\Admin\AppData\Local\Temp\Pinguinino.exe
      C:\Users\Admin\AppData\Local\Temp\Pinguinino.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      PID:1356

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\Pinguinino.exe

    Filesize

    2.0MB

    MD5

    912454c38854e21d9af16a272f5ef3e9

    SHA1

    50efd67b77951a0ab97da43307467aa369379b5e

    SHA256

    e1046e9aa8689c398dcd7a7f479b4c9d209e40f276217f63f1e0e2e7e09432db

    SHA512

    a3a3eaec78ded843013f2a21abdb44f3d3e71b0c2f9cb72088f23e31d1e70cd423df3aef4c92bdfb2609945918ccb520700796bc3f22ed52c5be7a535e965930

  • \Users\Admin\AppData\Local\Temp\Pinguino.exe

    Filesize

    758KB

    MD5

    d35174b7411449f97b526ed171d6efeb

    SHA1

    571ce1097e3f73a8aa0ad63ebf1cbe1230a407b3

    SHA256

    e0dc4f7eba7cb9c9c657e1ca70c51c5f3a25fe408cb90fa6f99807cfc24e67b9

    SHA512

    ae0a09328f6d60fb784b2ab02f92159a2dde928a024c978eacb2197ffa8d788f2cbaaac4e5d4afde353c34beac2c6a9b0e9a7d4156231491327f0c70edffa9f9

  • memory/1356-86-0x0000000000400000-0x0000000000609000-memory.dmp

    Filesize

    2.0MB

  • memory/2176-11-0x0000000000270000-0x0000000000271000-memory.dmp

    Filesize

    4KB

  • memory/2176-45-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2292-36-0x00000000001D0000-0x00000000001D1000-memory.dmp

    Filesize

    4KB

  • memory/2292-19-0x0000000000080000-0x0000000000081000-memory.dmp

    Filesize

    4KB

  • memory/2624-85-0x00000000002E0000-0x00000000002E1000-memory.dmp

    Filesize

    4KB

  • memory/2728-87-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2728-89-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB