Analysis

  • max time kernel
    129s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    25-07-2024 11:02

General

  • Target

    2024-07-25_0bbee3e81e0a9728ea1582bc19916011_gandcrab_karagany_metamorfo.exe

  • Size

    137KB

  • MD5

    0bbee3e81e0a9728ea1582bc19916011

  • SHA1

    e74734974d89210068a3e3e1b4810ef43ae4c539

  • SHA256

    d03abbd3a9dfc5cc34417b53740e14ac938d3f789a415bf30be79d9ac5339564

  • SHA512

    9faca0fd519d071aa0ae6f81a260438d589b315e2e9efaf777adf400bf4be7695bb847f8d02189bae117bfd1efd14c7f4e5e0a5962d700d3034f6823cadb2bca

  • SSDEEP

    1536:ymFff+GbWDmMAvQmHWlOMDSzWiO5MOYTB6m+GY0gp10sWjcdCiIjUA0ZTwy2:ymjbWaMAvx2WSisuBy067CiIjD

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\2024-07-25_0bbee3e81e0a9728ea1582bc19916011_gandcrab_karagany_metamorfo.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-07-25_0bbee3e81e0a9728ea1582bc19916011_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:3028
    • 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:2740
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2640

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

    94832ee9db2644449f765df65c1203f7

    SHA1

    8ee9e8a8e13f032aa1f9edfc666f882057727dbf

    SHA256

    2542b455055fad95f5772cf8bc4b91fd495ec17d2ff0f416490df45651318d91

    SHA512

    497e41d57976b81257d2d400d1f3f6dfdce6361b9cad5bceb5fec514bc76f4c31db0e42eb1d87f15c199e240fded4d02f1c1e01eaedaad55fe6b295f7f82181e

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

    Filesize

    342B

    MD5

    535d5248ada2152b8bc5b8346f264822

    SHA1

    db056525f1b00bdf3e0abe7c98225267ff7c36b9

    SHA256

    ea872b2cce4a69debfd646c60cd484d0cfc46c6082415abc828545822042f979

    SHA512

    7291849b4463345b2ed329b6b4e2a9c81839e6474ae42c7ad69722779e284933c8e827f6ef99f6b4f5670d2b6ecfcdfbc5948d1491f86d7c566a4faf5f1e9791

  • C:\Users\Admin\AppData\Local\Temp\Cab9733.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\Tar97F1.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b