Analysis

  • max time kernel
    122s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    25-03-2024 17:22

General

  • Target

    de8b75370416b592f0545e700f594bb3.exe

  • Size

    117KB

  • MD5

    de8b75370416b592f0545e700f594bb3

  • SHA1

    1b444bbace2a9a88d244f0037bce199687fc868f

  • SHA256

    65aa73a25ac570c128a19f9f4d46a68a063c180b95b4da48850e766b3d4f9ca0

  • SHA512

    e1be349ed81381f57ac38294e592d125c0a8ed33a491e3ff2c494329389e601aebfb69a37fed6f37280a489c417293db391e8a233e414e01e1a8ebdbb82708b9

  • SSDEEP

    3072:7DFWfJrrUdF9oMqPYGnC2ZFv8C85W2Ssn13UtjY8kfJCnzXw/X:7hWBrA/Ug6qvn5U5fCk

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/872878158670606357/hz-2xa3EUvDeS2kj_nD_hKe_hYX37_dCHSHGxMSgPHpZ7kGa2SPuDqt2R37YU-kZrkJD

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.

  • Executes dropped EXE 1 IoCs
  • 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.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

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

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor 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 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\de8b75370416b592f0545e700f594bb3.exe
    "C:\Users\Admin\AppData\Local\Temp\de8b75370416b592f0545e700f594bb3.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2328
    • C:\Users\Admin\AppData\Local\Temp\Robux generator v1.04.exe
      "C:\Users\Admin\AppData\Local\Temp\Robux generator v1.04.exe"
      2⤵
      • Looks for VirtualBox Guest Additions in registry
      • Looks for VMWare Tools registry key
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Maps connected drives based on registry
      • Checks SCSI registry key(s)
      • Checks processor information in registry
      • Enumerates system info in registry
      • Modifies system certificate store
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2520
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 2520 -s 1896
        3⤵
          PID:2572

    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

      64b5993b5e7bbb8015e251efbdca2485

      SHA1

      09feab46cbd9a8cf9f35ad602273b43969bb252f

      SHA256

      bed31b51c44e54a2b4f5fcd6e92d442380f1c5fd8f77da43fc7d3208395b66b6

      SHA512

      436b8926997093d60c36c47185c17737dcfdfa8a05bc22c3f9442ee48a1af705efbc409fdab9f86b79de8f77c9f502aa9a2d795e76df06bb3208f794830c15b0

    • C:\Users\Admin\AppData\Local\Temp\Cab4B74.tmp

      Filesize

      65KB

      MD5

      ac05d27423a85adc1622c714f2cb6184

      SHA1

      b0fe2b1abddb97837ea0195be70ab2ff14d43198

      SHA256

      c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

      SHA512

      6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

    • C:\Users\Admin\AppData\Local\Temp\Robux generator v1.04.exe

      Filesize

      86KB

      MD5

      c84b89b03c7ebb704c7763a0021a6158

      SHA1

      d13baac36f2bec9baa7dce865decc8951fc6f105

      SHA256

      77d8c3bb5cbc930cea146fec8c2fbdcb0f7ed4adecf43fcda7f349f05ce1b40a

      SHA512

      014f8d227395df2588b5892934ec5e779ffcbbadb9603115943c90646a21c2107430176b45acd90ae8869a40af876ee24a47f4a0036424bbc32f86963f02f781

    • C:\Users\Admin\AppData\Local\Temp\Tar5856.tmp

      Filesize

      175KB

      MD5

      dd73cead4b93366cf3465c8cd32e2796

      SHA1

      74546226dfe9ceb8184651e920d1dbfb432b314e

      SHA256

      a6752b7851b591550e4625b832a393aabcc428de18d83e8593cd540f7d7cae22

      SHA512

      ce1bdd595065c94fa528badf4a6a8777893807d6789267612755df818ba6ffe55e4df429710aea29526ee4aa8ef20e25f2f05341da53992157d21ae032c0fb63

    • memory/2328-8-0x000007FEF56D0000-0x000007FEF60BC000-memory.dmp

      Filesize

      9.9MB

    • memory/2328-0-0x0000000001070000-0x0000000001092000-memory.dmp

      Filesize

      136KB

    • memory/2328-2-0x000000001AB50000-0x000000001ABD0000-memory.dmp

      Filesize

      512KB

    • memory/2328-1-0x000007FEF56D0000-0x000007FEF60BC000-memory.dmp

      Filesize

      9.9MB

    • memory/2520-10-0x00000000002A0000-0x00000000002BA000-memory.dmp

      Filesize

      104KB

    • memory/2520-11-0x000007FEF56D0000-0x000007FEF60BC000-memory.dmp

      Filesize

      9.9MB

    • memory/2520-12-0x000000001AC30000-0x000000001ACB0000-memory.dmp

      Filesize

      512KB

    • memory/2520-79-0x000007FEF56D0000-0x000007FEF60BC000-memory.dmp

      Filesize

      9.9MB

    • memory/2520-80-0x000000001AC30000-0x000000001ACB0000-memory.dmp

      Filesize

      512KB