Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    18-03-2024 13:37

General

  • Target

    d3a6a6acd5feb396928e57f2b029ff2f.exe

  • Size

    82KB

  • MD5

    d3a6a6acd5feb396928e57f2b029ff2f

  • SHA1

    7ecb062b4a6232af745cd0d528b05cd198a6dbbb

  • SHA256

    b3eba21c557da13a56a785261b7ac6ff1f5a3214862c37b12b898d6cf3b9e5c5

  • SHA512

    8a2ff14995b1783a2eb88b7f5e985bc622223fdb7f76eeabe9390a601a13188cbcb221dda3a322ffb8f0660c4e91d5b646c7fccf234bcbdc05209d2bafab33c5

  • SSDEEP

    1536:VcwBkveYWT/F7EkN4fguIFuWYjaG49dtn7ZK:mwBUe5T/F7Ew4fRIFnYjadlw

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/863041632630472715/l4-YNBHng5liJ4-fA20g3yjH25VzpLYVe65sQ2OwkF_viiV2P5xGa763qKJndTY14MEA

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 3 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\d3a6a6acd5feb396928e57f2b029ff2f.exe
    "C:\Users\Admin\AppData\Local\Temp\d3a6a6acd5feb396928e57f2b029ff2f.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:2944
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2944 -s 1612
      2⤵
        PID:2924

    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

      68d5a42d5e45d0f2396a23dc143ab22e

      SHA1

      376d7da1207b1f141c2618e9340af03ac700958b

      SHA256

      e7c092eecbff22df1e456c80537e1bc6b0aa5aae052a2c2de407e4aef71265ae

      SHA512

      8f0e15ccf871c66dc90c3da25f7f412fbb022837c41b3d818aa9eb668d1ac43dd6b6be5930dd0dc1f03dc6b7d6a67de482def3ca9816c7ea827535b9e99373b3

    • C:\Users\Admin\AppData\Local\Temp\Cab3D8F.tmp

      Filesize

      65KB

      MD5

      ac05d27423a85adc1622c714f2cb6184

      SHA1

      b0fe2b1abddb97837ea0195be70ab2ff14d43198

      SHA256

      c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

      SHA512

      6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

    • C:\Users\Admin\AppData\Local\Temp\Tar3EED.tmp

      Filesize

      175KB

      MD5

      dd73cead4b93366cf3465c8cd32e2796

      SHA1

      74546226dfe9ceb8184651e920d1dbfb432b314e

      SHA256

      a6752b7851b591550e4625b832a393aabcc428de18d83e8593cd540f7d7cae22

      SHA512

      ce1bdd595065c94fa528badf4a6a8777893807d6789267612755df818ba6ffe55e4df429710aea29526ee4aa8ef20e25f2f05341da53992157d21ae032c0fb63

    • memory/2944-0-0x0000000000FB0000-0x0000000000FCA000-memory.dmp

      Filesize

      104KB

    • memory/2944-1-0x000007FEF54B0000-0x000007FEF5E9C000-memory.dmp

      Filesize

      9.9MB

    • memory/2944-2-0x00000000003F0000-0x0000000000470000-memory.dmp

      Filesize

      512KB

    • memory/2944-72-0x000007FEF54B0000-0x000007FEF5E9C000-memory.dmp

      Filesize

      9.9MB

    • memory/2944-73-0x00000000003F0000-0x0000000000470000-memory.dmp

      Filesize

      512KB