Analysis

  • max time kernel
    143s
  • 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 11:04

General

  • Target

    2024-07-25_bea262da2e8d10c4901531d39f66b2fc_gandcrab_karagany_metamorfo.exe

  • Size

    137KB

  • MD5

    bea262da2e8d10c4901531d39f66b2fc

  • SHA1

    dfa0187b24f923c425d13a77c7007966a378ad8f

  • SHA256

    603a0aac1033c67be26227789ed7e8fec70a9577ceb59ff94a2dde1d9c07a166

  • SHA512

    219338d3f41a429dcc49835f05aeb942d14c0dc2ca092299594ac57881187def836231783ab2eacea3fc2887d7d18fadfe71c497dd8202be300baacdd7b8f560

  • SSDEEP

    1536:ymFff+GbWDmMAvQmHWlOMDSzWiO5MOYTB6m+G0gp10sWjcdCiIjUA0ZTwy2:ymjbWaMAvx2WSisuBS67CiIjD

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_bea262da2e8d10c4901531d39f66b2fc_gandcrab_karagany_metamorfo.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-07-25_bea262da2e8d10c4901531d39f66b2fc_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:2244
    • 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:1708
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:340

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

    ef3fb5d622ee0d024e3712734cc2101e

    SHA1

    dab378febd72a7ced67df514eae05ba0e73a19c5

    SHA256

    89b3a66abea88693e9c8d1aba4f88b86af4d41c0c7f582c2b0e51840d0bc77f1

    SHA512

    432bc5b6ce7383db9de2cfa8a01a91046425aafad3829e9a751c5dcaef85768d78413fe69093fddec1769b6fb63aa9d7a3722b04fef21d99ed7bfb09c17d7861

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

    Filesize

    342B

    MD5

    8df28a359db9d26d859cab065e265172

    SHA1

    c6a3a41c73fbe5e18d5421899b3b1926ab8b53ae

    SHA256

    5ae09dca4b674c0e351ae8145d20e78fbc1f99fcd918f2a0a8b5e7dcde88e7cd

    SHA512

    ba83ac6e6d4072d7d0e4b58eb52f232e3a7201d7a0a727a67b813923fb11f6e14db4ab6d8a3505fad0020490f9b79e57ba7412585b41f504bfb513b6733e30b7

  • C:\Users\Admin\AppData\Local\Temp\CabA160.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\TarA21E.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b