Analysis

  • max time kernel
    136s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    25-07-2024 11:03

General

  • Target

    2024-07-25_a1b463cb32e78a3fa52e5305ab3c77c5_gandcrab_karagany_metamorfo.exe

  • Size

    137KB

  • MD5

    a1b463cb32e78a3fa52e5305ab3c77c5

  • SHA1

    7e28f1a2093dc67bba75602fdd7032beb4e107d9

  • SHA256

    cc4c099f4c802f177c98d475ce18e33fc00a0bb8239aa91741b8664913a9fb4b

  • SHA512

    492ae444528605c5a7b9a1000e5cd43b9931e6bbca13ede9b7cfd71a67c653665fd9482e55a531c330af44b5ef51d4ee6c1e54d04e16d4665f793710fd348abe

  • SSDEEP

    1536:ymFff+GbWDmMAvQmHWlOMDSzWiO5MOYTB6m+GNFgp10sWjcdCiIjUA0ZTwy2:ymjbWaMAvx2WSisuBPF67CiIjD

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 15 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\2024-07-25_a1b463cb32e78a3fa52e5305ab3c77c5_gandcrab_karagany_metamorfo.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-07-25_a1b463cb32e78a3fa52e5305ab3c77c5_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:264
    • 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:3020
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1824

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

    bb03ff5bf9ecf6a87fa75a870d5b1533

    SHA1

    adc45efc9464230e485ccbedae56a13d29dc1c5f

    SHA256

    bd5b20ad0614ee9b78c23c4b4ed556ddfed7fbffe3605517395a64ce0d3a12ff

    SHA512

    1593b00bc96b744719861be41ae79051a90987b39763c8727c89f50e07a1f2abb96a9c066e2de944f2317aa3686c9dcdebf610c2b6ce91025f3dfdba8ff9de6f

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

    Filesize

    342B

    MD5

    ba3daa6f79c8f4b501df2ff067412082

    SHA1

    50300d06c98a0930595d5997b4ebefa3d166fafd

    SHA256

    e5c49ccdd99e797bf68575bf3dbc818531d60fb7c30353b1b70f46f4b6762df8

    SHA512

    f70ce8315440fccf4f3a6b35705990af8bf0353a4a28aaffd34fbf2bc24b9c20a206ac36006e532ee6967408ce58698fca46928bfc823af6e16066a0c6b27de2

  • C:\Users\Admin\AppData\Local\Temp\CabE9F4.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\TarEB2F.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b