Analysis

  • max time kernel
    149s
  • max time network
    130s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    07/11/2022, 00:51

General

  • Target

    1dba91ed96b54ccb478d114990a4c7661b5e6b2be8ea8c6f180915aafcd1cdd7.exe

  • Size

    952KB

  • MD5

    0795df23de1c401e96a153b026ed8600

  • SHA1

    b4e1861b4579634e16b4c93578176f336c7de5a2

  • SHA256

    1dba91ed96b54ccb478d114990a4c7661b5e6b2be8ea8c6f180915aafcd1cdd7

  • SHA512

    099e715551d5ddd10b7a0e313e4c220396f360cf5cfed39922242fe38031efed4940ef524386582575f46a413f0ec27c69617298022f2bb3523ee1d005357e97

  • SSDEEP

    12288:byyy7Z3z4I8NXOGjwwG/ZjXsAHHz79p9NM5Tz103j2CF4TxQUOfhVPOSAE//VAci:baCI2OewFJN4mkxyHnnew1SatLRzD

Malware Config

Extracted

Family

darkcomet

Botnet

010

C2

shades.no-ip.org:1604

Mutex

DC_MUTEX-DA5KEY9

Attributes
  • gencode

    vdj7j58DDDAn

  • install

    false

  • offline_keylogger

    true

  • persistence

    false

Signatures

  • Darkcomet

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

  • Executes dropped EXE 3 IoCs
  • UPX packed file 9 IoCs

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

  • Loads dropped DLL 5 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1dba91ed96b54ccb478d114990a4c7661b5e6b2be8ea8c6f180915aafcd1cdd7.exe
    "C:\Users\Admin\AppData\Local\Temp\1dba91ed96b54ccb478d114990a4c7661b5e6b2be8ea8c6f180915aafcd1cdd7.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1932
    • C:\Users\Admin\AppData\Local\Temp\1dba91ed96b54ccb478d114990a4c7661b5e6b2be8ea8c6f180915aafcd1cdd7.exe
      "C:\Users\Admin\AppData\Local\Temp\1dba91ed96b54ccb478d114990a4c7661b5e6b2be8ea8c6f180915aafcd1cdd7.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1836
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\NJHXV.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2036
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "msoffice" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe" /f
          4⤵
          • Adds Run key to start application
          PID:2040
      • C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe
        "C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1996
        • C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe
          "C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:428
        • C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe
          "C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:1044

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\NJHXV.bat

    Filesize

    155B

    MD5

    f07b93136766adced3c6f0d74d869da0

    SHA1

    787c530f33687d758b41295e01d7a9a1bba3a467

    SHA256

    cd603067047c028fe12d4b099d13b3681dd698d25bc32474184e9d8edd3ed701

    SHA512

    050105a5f14939a37f653421b24959cc90cb082b20df5bb1a81335fd0ad5e70c740b43f1d6df0fc7324551425894668acc3af0c533c7d90ff149d84e844c2d10

  • C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe

    Filesize

    952KB

    MD5

    2601a063e79703ac7465bca851c732b7

    SHA1

    0e5207b496e2e6cede66f03ace6f2b9fd9826b50

    SHA256

    46ac31f506ccc8b9b8c772de87aaa55808ab76d85f091bd796c03a1306d56d19

    SHA512

    1c16bee8595e1610eb60f1b127524cbb6efd716572f0b53c1bf1b84932c35d710b550ab963d2cf28a0483b00233a2b523c8637dc1a1114802b8595dd83ca5064

  • C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe

    Filesize

    952KB

    MD5

    2601a063e79703ac7465bca851c732b7

    SHA1

    0e5207b496e2e6cede66f03ace6f2b9fd9826b50

    SHA256

    46ac31f506ccc8b9b8c772de87aaa55808ab76d85f091bd796c03a1306d56d19

    SHA512

    1c16bee8595e1610eb60f1b127524cbb6efd716572f0b53c1bf1b84932c35d710b550ab963d2cf28a0483b00233a2b523c8637dc1a1114802b8595dd83ca5064

  • C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe

    Filesize

    952KB

    MD5

    2601a063e79703ac7465bca851c732b7

    SHA1

    0e5207b496e2e6cede66f03ace6f2b9fd9826b50

    SHA256

    46ac31f506ccc8b9b8c772de87aaa55808ab76d85f091bd796c03a1306d56d19

    SHA512

    1c16bee8595e1610eb60f1b127524cbb6efd716572f0b53c1bf1b84932c35d710b550ab963d2cf28a0483b00233a2b523c8637dc1a1114802b8595dd83ca5064

  • C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe

    Filesize

    952KB

    MD5

    2601a063e79703ac7465bca851c732b7

    SHA1

    0e5207b496e2e6cede66f03ace6f2b9fd9826b50

    SHA256

    46ac31f506ccc8b9b8c772de87aaa55808ab76d85f091bd796c03a1306d56d19

    SHA512

    1c16bee8595e1610eb60f1b127524cbb6efd716572f0b53c1bf1b84932c35d710b550ab963d2cf28a0483b00233a2b523c8637dc1a1114802b8595dd83ca5064

  • \Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe

    Filesize

    952KB

    MD5

    2601a063e79703ac7465bca851c732b7

    SHA1

    0e5207b496e2e6cede66f03ace6f2b9fd9826b50

    SHA256

    46ac31f506ccc8b9b8c772de87aaa55808ab76d85f091bd796c03a1306d56d19

    SHA512

    1c16bee8595e1610eb60f1b127524cbb6efd716572f0b53c1bf1b84932c35d710b550ab963d2cf28a0483b00233a2b523c8637dc1a1114802b8595dd83ca5064

  • \Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe

    Filesize

    952KB

    MD5

    2601a063e79703ac7465bca851c732b7

    SHA1

    0e5207b496e2e6cede66f03ace6f2b9fd9826b50

    SHA256

    46ac31f506ccc8b9b8c772de87aaa55808ab76d85f091bd796c03a1306d56d19

    SHA512

    1c16bee8595e1610eb60f1b127524cbb6efd716572f0b53c1bf1b84932c35d710b550ab963d2cf28a0483b00233a2b523c8637dc1a1114802b8595dd83ca5064

  • \Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe

    Filesize

    952KB

    MD5

    2601a063e79703ac7465bca851c732b7

    SHA1

    0e5207b496e2e6cede66f03ace6f2b9fd9826b50

    SHA256

    46ac31f506ccc8b9b8c772de87aaa55808ab76d85f091bd796c03a1306d56d19

    SHA512

    1c16bee8595e1610eb60f1b127524cbb6efd716572f0b53c1bf1b84932c35d710b550ab963d2cf28a0483b00233a2b523c8637dc1a1114802b8595dd83ca5064

  • \Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe

    Filesize

    952KB

    MD5

    2601a063e79703ac7465bca851c732b7

    SHA1

    0e5207b496e2e6cede66f03ace6f2b9fd9826b50

    SHA256

    46ac31f506ccc8b9b8c772de87aaa55808ab76d85f091bd796c03a1306d56d19

    SHA512

    1c16bee8595e1610eb60f1b127524cbb6efd716572f0b53c1bf1b84932c35d710b550ab963d2cf28a0483b00233a2b523c8637dc1a1114802b8595dd83ca5064

  • \Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe

    Filesize

    952KB

    MD5

    2601a063e79703ac7465bca851c732b7

    SHA1

    0e5207b496e2e6cede66f03ace6f2b9fd9826b50

    SHA256

    46ac31f506ccc8b9b8c772de87aaa55808ab76d85f091bd796c03a1306d56d19

    SHA512

    1c16bee8595e1610eb60f1b127524cbb6efd716572f0b53c1bf1b84932c35d710b550ab963d2cf28a0483b00233a2b523c8637dc1a1114802b8595dd83ca5064

  • memory/428-120-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/428-123-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1044-101-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1044-112-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1044-118-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1044-119-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1044-116-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1044-122-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1044-110-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1044-108-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1044-107-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1044-94-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1044-95-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1044-104-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1044-98-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1836-59-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1836-61-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1836-62-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1836-65-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1836-115-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1836-66-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1836-58-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1836-69-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1836-70-0x0000000075981000-0x0000000075983000-memory.dmp

    Filesize

    8KB

  • memory/1932-56-0x0000000003070000-0x0000000003148000-memory.dmp

    Filesize

    864KB

  • memory/1996-83-0x0000000003040000-0x0000000003118000-memory.dmp

    Filesize

    864KB