Analysis

  • max time kernel
    145s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    24-07-2024 10:09

General

  • Target

    2024-07-24_c78f2271dbcfdbd90de6d092ebd7f975_gandcrab_karagany_metamorfo.exe

  • Size

    137KB

  • MD5

    c78f2271dbcfdbd90de6d092ebd7f975

  • SHA1

    099aaf1fea36d8a20d8ab55f36ca55932a2f3e31

  • SHA256

    662cbc746267e43667a1eba3f1f67ac8ff5739ea3938bc99102abfc51015c112

  • SHA512

    f536cffa466688b388b57181b6f6aba73e4c7fdd7061a65415dcac0a253c1e6cb8d0e91596e78d1357d2b758a1b1900063eeec4701d91f4232041a45ffe7f887

  • SSDEEP

    1536:ymFff+GbWDmMAvQmHWlOMDSzWiO5MOYTB6m+G3vMpgp10sWjcdCiIjUA0ZTwy2:ymjbWaMAvx2WSisuBRA67CiIjD

Malware Config

Signatures

  • Gandcrab

    Gandcrab is a Trojan horse that encrypts files on a computer.

  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Modifies system certificate store 2 TTPs 16 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 43 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\2024-07-24_c78f2271dbcfdbd90de6d092ebd7f975_gandcrab_karagany_metamorfo.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-07-24_c78f2271dbcfdbd90de6d092ebd7f975_gandcrab_karagany_metamorfo.exe"
    1⤵
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1864
    • C:\Windows\SysWOW64\wbem\wmic.exe
      "C:\Windows\system32\wbem\wmic.exe" shadowcopy delete
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2480
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2516

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    dd1960d90c3b7a0089a31ee6fca93098

    SHA1

    1d3812ad40477e4806ce732bdf7d12e13a7b2f66

    SHA256

    c3d13fc6a9cffc46e0868ff067ec7fbc3c5ba4f2f525890be1806a66e153cdcd

    SHA512

    3c5d2b4ca057e28627de306dc2054fcedb50b1de241019438d45a263cdb9418ba91b02df9713272ffa2274f2c525a975cae0d64ffc7b334c013dbcb876c4fea0

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    742463f2bd801aebb3f46a76001a605c

    SHA1

    fb78ebcb334293a4250fd3e6b9727c5f0c5c8c51

    SHA256

    3b7ec9ae7033e6d827066657be8c37bbfb281cd007beadc33b69eaf25620f4b1

    SHA512

    257eb35eefcae49d91b64a15e7e7c63098d451ea13b9c371611b7bc71cbea95c9b7328aa8f362b043c4b374f8d5035a85c8b2b6ef4fa0678b924cd1a1383dee9

  • C:\Users\Admin\AppData\Local\Temp\Cab908.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\Tar9E5.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b