Analysis

  • max time kernel
    119s
  • max time network
    134s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    20-03-2024 12:19

General

  • Target

    d8c97c152cbc98fcf34c9ad364db9129.exe

  • Size

    42KB

  • MD5

    d8c97c152cbc98fcf34c9ad364db9129

  • SHA1

    81387577091e5e263030e30324492516b978da81

  • SHA256

    e19c7e95447bcc013e16feb6eaf8d742029b381ce973efdca100260f0636aacb

  • SHA512

    b9b0c3b7c7220fef62381658179741de56dc2eb01aa573500af3aaeab0620aef7f25ed1b7a7f248ab303ef7c5e740e1f9df10992106df88abc748e1edcecf4fc

  • SSDEEP

    768:ZFgrjbl81ydxCGIBceQ7YB/uZELP3TjmKZKfgm3Eh5p:/gxwKyBtLP3T6F7EPp

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/878381576264757248/pwCz3dsxBEJl3s7Z-yY60eO8n2-b3zFWCyvcKjp25NJsB4qrtwyL-C0QJKL7gGjH8Rlu

Signatures

  • Mercurial Grabber Stealer

    Mercurial Grabber is an open source stealer targeting Chrome, Discord and some game clients as well as generic system information.

  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 1 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 5 IoCs
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Checks SCSI registry key(s) 3 TTPs 1 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 4 IoCs
  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d8c97c152cbc98fcf34c9ad364db9129.exe
    "C:\Users\Admin\AppData\Local\Temp\d8c97c152cbc98fcf34c9ad364db9129.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Checks SCSI registry key(s)
    • Enumerates system info in registry
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2104
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2104 -s 1748
      2⤵
        PID:1620

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      67KB

      MD5

      753df6889fd7410a2e9fe333da83a429

      SHA1

      3c425f16e8267186061dd48ac1c77c122962456e

      SHA256

      b42dc237e44cbc9a43400e7d3f9cbd406dbdefd62bfe87328f8663897d69df78

      SHA512

      9d56f79410ad0cf852c74c3ef9454e7ae86e80bdd6ff67773994b48ccac71142bcf5c90635da6a056e1406e81e64674db9584928e867c55b77b59e2851cf6444

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

      Filesize

      344B

      MD5

      d3bff0c9d5e7c7f4197d38d2a874880c

      SHA1

      cb15e502d291ff2a62aa2d377be452b3d4c32128

      SHA256

      dc6dc2a31f2d422727361d40b0bd14dd6d8a16b7dee00c4e2aa43404d1804e85

      SHA512

      678d3f935a6d500477c54b2fb7b6ede2aea0fc030106256b994eada0e2c5417a7db7ad464f474fdd3282867025bd8997dc60f1061b951ba4758b2315f0f91757

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

      Filesize

      65KB

      MD5

      ac05d27423a85adc1622c714f2cb6184

      SHA1

      b0fe2b1abddb97837ea0195be70ab2ff14d43198

      SHA256

      c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

      SHA512

      6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

    • C:\Users\Admin\AppData\Local\Temp\Tar2E7.tmp

      Filesize

      175KB

      MD5

      dd73cead4b93366cf3465c8cd32e2796

      SHA1

      74546226dfe9ceb8184651e920d1dbfb432b314e

      SHA256

      a6752b7851b591550e4625b832a393aabcc428de18d83e8593cd540f7d7cae22

      SHA512

      ce1bdd595065c94fa528badf4a6a8777893807d6789267612755df818ba6ffe55e4df429710aea29526ee4aa8ef20e25f2f05341da53992157d21ae032c0fb63

    • memory/2104-0-0x0000000000C60000-0x0000000000C70000-memory.dmp

      Filesize

      64KB

    • memory/2104-1-0x000007FEF5370000-0x000007FEF5D5C000-memory.dmp

      Filesize

      9.9MB

    • memory/2104-2-0x000000001A830000-0x000000001A8B0000-memory.dmp

      Filesize

      512KB

    • memory/2104-72-0x000007FEF5370000-0x000007FEF5D5C000-memory.dmp

      Filesize

      9.9MB

    • memory/2104-73-0x000000001A830000-0x000000001A8B0000-memory.dmp

      Filesize

      512KB