Analysis

  • max time kernel
    146s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    24-07-2024 10:03

General

  • Target

    2024-07-24_3a8b2c06ea815c0041ca10396932bf2b_gandcrab_karagany_metamorfo.exe

  • Size

    137KB

  • MD5

    3a8b2c06ea815c0041ca10396932bf2b

  • SHA1

    4553100103249a5410983bda557afead3c542047

  • SHA256

    4be71cf0a5e8abb2fd91377f8925bc3f2ac12eb2af542618822a66b061803193

  • SHA512

    cb5b7627f8eb406041ff2f755417e59f820d5e6fb152b385fb4fb7d082207b76743b67c39cbc438cab64edeacd33a240003fe9e8448f0e9187f6a56e673bf315

  • SSDEEP

    1536:ymFff+GbWDmMAvQmHWlOMDSzWiO5MOYTB6m+Gfpgp10sWjcdCiIjUA0ZTwy2:ymjbWaMAvx2WSisuBtp67CiIjD

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\2024-07-24_3a8b2c06ea815c0041ca10396932bf2b_gandcrab_karagany_metamorfo.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-07-24_3a8b2c06ea815c0041ca10396932bf2b_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:2580
    • 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:2184
  • 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

    f2a439eaabe23fd77f464076e8c0a256

    SHA1

    b4b1b806f1b8551344f980e2609ec3516faa1c46

    SHA256

    4c0404d0e50d14b6c7c49aa40ad5ae356f10cdbf78c7c1a2be3f6d0ee5fe54df

    SHA512

    710915d60f4e8379ac16a97b3562195a40730765744174d9ea18f5d68fd919a2a2ed534de28ec16010f7ef8d702a9ee7c8f9381a5b60aacca7dee470b179d34f

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

    Filesize

    342B

    MD5

    3590d0b1860764fb770793aab5363963

    SHA1

    bcc366c794674759ffe3a33b13f9816238e8f3b3

    SHA256

    5bfbcf138227fef4fd9af4679829567366aaa6eb3d90e4654acd3174952a265f

    SHA512

    1db8dd0ce66fc316bb83c0d8f2e25a25a616623d6e080ff5c448edf3762e78ec9085609d0a573ed0239a02abe263f84e0a5935ffa9dfce89adca4ec866053d10

  • C:\Users\Admin\AppData\Local\Temp\Cab6E30.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\Tar6EB0.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b