Resubmissions

30-07-2023 06:59

230730-hsjknsgd78 10

30-07-2023 06:57

230730-hrd9kagd75 10

28-07-2023 15:26

230728-svbyqadh66 10

Analysis

  • max time kernel
    142s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-07-2023 06:59

General

  • Target

    9d0026a17b1bd281baf4cda8f6c7e52b9ed2edd180f8e3b85703931c50f11453.exe

  • Size

    320KB

  • MD5

    cb7786ac2d9c0b586ccbe12b3bc32693

  • SHA1

    4d40f8743c194671a96211ee6b4c751a4bf50871

  • SHA256

    9d0026a17b1bd281baf4cda8f6c7e52b9ed2edd180f8e3b85703931c50f11453

  • SHA512

    cee77848b9bed772e32aca5009ebde34bf1ef1ad62197630a20d9c9de3905e09881a9dc639bd56bc44f499815ed92cbc93d254423793f7bec58a4ff2e42a593e

  • SSDEEP

    6144:Vk1F9vhVI8vzPW2t1BOGu1CuDq1hzF0r2Z:VeF9jI8vzPnt7YCF0SZ

Score
10/10

Malware Config

Signatures

  • Clop

    Ransomware discovered in early 2019 which has been actively developed since release.

  • Renames multiple (153) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Drops desktop.ini file(s) 16 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\9d0026a17b1bd281baf4cda8f6c7e52b9ed2edd180f8e3b85703931c50f11453.exe
    "C:\Users\Admin\AppData\Local\Temp\9d0026a17b1bd281baf4cda8f6c7e52b9ed2edd180f8e3b85703931c50f11453.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4796
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{429C1165-60B1-4C42-9C37-B8D79D6133A8}'" delete
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1904
      • C:\Windows\System32\wbem\WMIC.exe
        C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{429C1165-60B1-4C42-9C37-B8D79D6133A8}'" delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1452
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1480

Network

MITRE ATT&CK Matrix ATT&CK v13

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\How To Restore Your Files.txt
    Filesize

    1021B

    MD5

    cc40a2ba1af80ab73e9496c5a1b5dc2e

    SHA1

    5a927aad3208578199780627917985c677fd0f07

    SHA256

    a8363ff2d8ac192a8edd3aa9c8f7f3966ddefe1a3b65a9bc0566c2c79189fee4

    SHA512

    5faaf001854fc9f2d865fa9b1dc46e7aacabb4b6104323dc1c9fe142141871a735fdc7780f36ca4736867aaca7212472a1ac6197cd60c1f72782a9de034f4b45