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Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/03/2024, 10:54

General

  • Target

    d5eefa9e17ec422e44a405bf830ff327.exe

  • Size

    187KB

  • MD5

    d5eefa9e17ec422e44a405bf830ff327

  • SHA1

    dbd36c684bad9c6c5835ebf5889169d9532d9a09

  • SHA256

    88ba55dbd0cfcb15ff8edac2358ebfae17d4937b5d68ea1b0a883a2f860f8396

  • SHA512

    b3223034b430e7746dc65a2447d7fa1003d8c8ce34a6482b2f6589efdd4ffe04d97e902813d4e96c73a4ef9e620a2e728e8cd01a79d4bb5eae89c44c89224e8a

  • SSDEEP

    3072:CahKyd2n31h5GWp1icKAArDZz4N9GhbkrNEkYdZxMP6JQZV2W2v:CahO5p0yN90QEpbMpZg

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/871142634188599366/BwhkAlPo0tSUYVC12Z1DeC-cwjt_BxR3Zn-beRqAO-qWJMeqvWQSP68UIcrX8tc77u5d

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 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 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.

  • 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d5eefa9e17ec422e44a405bf830ff327.exe
    "C:\Users\Admin\AppData\Local\Temp\d5eefa9e17ec422e44a405bf830ff327.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:3436
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\PAYKEY~1.EXE
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\PAYKEY~1.EXE
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3020
      • C:\Windows\SysWOW64\arp.exe
        "C:\Windows\System32\arp.exe" -a
        3⤵
          PID:2236
        • C:\Windows\SysWOW64\arp.exe
          "C:\Windows\System32\arp.exe" -a
          3⤵
            PID:2384
          • C:\Windows\SysWOW64\arp.exe
            "C:\Windows\System32\arp.exe" -a
            3⤵
              PID:2148
          • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\test.exe
            C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\test.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
            PID:3856

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\PAYKEY~1.EXE

          Filesize

          47KB

          MD5

          8f11b0271b1338e6b67c89024f678bb3

          SHA1

          9c1299cc8e2b2d75734f267cd21db15ea75a2ded

          SHA256

          4f1bd7954541ab94bf7a3f1b9b4755efc63e169d807791bba10ca093d2150a97

          SHA512

          e0ad5324e9b7e6441d5a922bad4c86fa8bc8327ef2445cca9fc8341662b80164660beddce8579105e467cea729ec9e8220194031fa6b7bcbbba1a2c8a341b54c

        • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\test.exe

          Filesize

          41KB

          MD5

          3dfaada600f7326173ddbd446e9793a3

          SHA1

          85008fc9d8d393d60d51ec7fa2d98e2a36a0e62e

          SHA256

          8d5db75e3652c875ac0fe1e7cc04fc01b635731a19dae4a0f17eec825f194b02

          SHA512

          956f68ce84336fd50f5416e45218329ab127c4888213e680e0a46486bf333f5e317393ac6907d57ec38c16bce38196234aa99a08967f2add60a06ed424692328

        • memory/3020-8-0x0000000074FE0000-0x0000000075790000-memory.dmp

          Filesize

          7.7MB

        • memory/3020-7-0x0000000000B10000-0x0000000000B22000-memory.dmp

          Filesize

          72KB

        • memory/3020-9-0x00000000059D0000-0x0000000005F74000-memory.dmp

          Filesize

          5.6MB

        • memory/3020-10-0x0000000005420000-0x00000000054B2000-memory.dmp

          Filesize

          584KB

        • memory/3020-11-0x00000000056B0000-0x00000000056C0000-memory.dmp

          Filesize

          64KB

        • memory/3020-12-0x0000000074FE0000-0x0000000075790000-memory.dmp

          Filesize

          7.7MB

        • memory/3856-16-0x0000000000090000-0x00000000000A0000-memory.dmp

          Filesize

          64KB

        • memory/3856-17-0x00007FFA51F60000-0x00007FFA52A21000-memory.dmp

          Filesize

          10.8MB

        • memory/3856-23-0x00007FFA51F60000-0x00007FFA52A21000-memory.dmp

          Filesize

          10.8MB