Analysis

  • max time kernel
    122s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    26-12-2023 23:04

General

  • Target

    94c1e533a240809bef8a3826d56d2f94.exe

  • Size

    42KB

  • MD5

    94c1e533a240809bef8a3826d56d2f94

  • SHA1

    1747274ea128e7bdba3588bb73911813625b7e11

  • SHA256

    2717af5356469849234dfe169a2de11a721e4c8d107e7a697e47d68dc8d5bb8c

  • SHA512

    c525061d9466adf26faa93c974e71156b3ca9b7249cc961fff9234bb3746e47d12e255c2dc90ed2e95cbd0a019db43c0727459974770b7ee04769f6cbb926e8a

  • SSDEEP

    768:JM8LsY8YKcKIEomMiuZbLXhTjQKZKfgm3Ehnn:QLYKcbc+LXhT8F7EZn

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/868244438231707720/AozenKoIXGy-3xYWz1qvuRdLgrfw_LhQrMwFecqS1nRfdoypfkv3VzhdEHafYs5ES-L_

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
  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\94c1e533a240809bef8a3826d56d2f94.exe
    "C:\Users\Admin\AppData\Local\Temp\94c1e533a240809bef8a3826d56d2f94.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)
    • Checks processor information in registry
    • Enumerates system info in registry
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2560
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2560 -s 1832
      2⤵
        PID:2376

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      344B

      MD5

      641401efdf0ed7ba4d83061d0671fcf5

      SHA1

      c620a3e94ca8458e85adf859d2d57bd1b424636e

      SHA256

      88b23166dbe86171a88db8c7c9d98cfc42ca0be118c912be53528891b2e56b45

      SHA512

      8ee208d3752ec522e14fe55cddd5f2b5017b204bbdc5045f9a197e0c32a14191a936eda1e7e393c08498380f4c07f2537792353bc7389d3b7e94539a90c9cad9

    • C:\Users\Admin\AppData\Local\Temp\CabF3F.tmp

      Filesize

      65KB

      MD5

      ac05d27423a85adc1622c714f2cb6184

      SHA1

      b0fe2b1abddb97837ea0195be70ab2ff14d43198

      SHA256

      c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

      SHA512

      6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

    • C:\Users\Admin\AppData\Local\Temp\Tar13B5.tmp

      Filesize

      171KB

      MD5

      9c0c641c06238516f27941aa1166d427

      SHA1

      64cd549fb8cf014fcd9312aa7a5b023847b6c977

      SHA256

      4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

      SHA512

      936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

    • memory/2560-0-0x0000000000200000-0x0000000000210000-memory.dmp

      Filesize

      64KB

    • memory/2560-1-0x000007FEF5880000-0x000007FEF626C000-memory.dmp

      Filesize

      9.9MB

    • memory/2560-2-0x0000000002120000-0x00000000021A0000-memory.dmp

      Filesize

      512KB

    • memory/2560-3-0x000007FEF5880000-0x000007FEF626C000-memory.dmp

      Filesize

      9.9MB

    • memory/2560-4-0x0000000002120000-0x00000000021A0000-memory.dmp

      Filesize

      512KB