Analysis

  • max time kernel
    135s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    25-07-2024 11:02

General

  • Target

    2024-07-25_2f94f011fadc29618c1e1b48957259a5_gandcrab_karagany_metamorfo.exe

  • Size

    137KB

  • MD5

    2f94f011fadc29618c1e1b48957259a5

  • SHA1

    3afd9e0dffe0a92ae7cd27cfcda5573b460e6ce3

  • SHA256

    ef546d7c029d8444dec671561df0feaf14309c57b273143e88cd7f91cca9046f

  • SHA512

    269dc8845394a1fbaf7d91f5bf29cfea3b3ab0e0a5e5dbcb6a6387ba9bd7567a557f26d170a7ab1dbb4cd45c8a175eefefda0f9bc5c83b35e12cf420de8907f7

  • SSDEEP

    1536:ymFff+GbWDmMAvQmHWlOMDSzWiO5MOYTB6m+GAgp10sWjcdCiIjUA0ZTwy2:ymjbWaMAvx2WSisuBO67CiIjD

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_2f94f011fadc29618c1e1b48957259a5_gandcrab_karagany_metamorfo.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-07-25_2f94f011fadc29618c1e1b48957259a5_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:1812
    • 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:2824
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2788

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

    e1f4ca9f3253dabeea4b7847a0ef3d5b

    SHA1

    8238580dc94a848d6c86165a8dfb2620221fd4b4

    SHA256

    c77aba4482de17a192ba40395c69ee981d602867d32437b6ae46f69ee178b96b

    SHA512

    6170dcd89d4ecef93b9d0601149856debfd278251fac2727916f9cd053497802a78ffede5c226a1311a831765e20c2f9b8165103a8ed4a3afc86de8c87cc113b

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

    Filesize

    342B

    MD5

    78f79347f6c79705ceb1562a7a849575

    SHA1

    573b6be3acfff82c4c726edb17485f1737b0315a

    SHA256

    008c6fa09ef7c4d5501c981e0e68f5b6c3f96632e6160836d9b372e269f16424

    SHA512

    0f48360efb6f76f8d3f6c70c82f12e77c0a1887454329ee8755505989614a7ca08979b77a0b3d936fb9c22598f89b6f3d1f21a3f1b964935e0084d0733844b35

  • C:\Users\Admin\AppData\Local\Temp\Cab980D.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\Tar986E.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b