Analysis

  • max time kernel
    120s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    07-01-2024 07:53

General

  • Target

    486e5455e5a7b1edf125a86c37ca3a5a.exe

  • Size

    108KB

  • MD5

    486e5455e5a7b1edf125a86c37ca3a5a

  • SHA1

    a93e3f16749dafa3ca288fdd1b06af8c49daa117

  • SHA256

    2cd3569be624b29aceeaaf3a5c445e92b654ed1340563c8afcd624bb1ff1e3eb

  • SHA512

    359bfd77102291435f66f3557c57669c7296ee2936376083ff62c1a1c5b039b1055d5c37779479cd42d3787b928655d2fd97aa1aaba77f93cbafdb1cc7726d95

  • SSDEEP

    768:BAAppAUvRHCkuZ1LSLTjbKZKfgm3Ehu2nfffffffffffffffBffffffffffffff0:PRHCXLSLTfF7EU2r

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/879035996652601384/zoXJKqNdFb7ygqdlaZv6Ef0utel9dojoeMTW78ABZAM0SPuvSKZn_VuXTLH5p8xg8IUQ

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\486e5455e5a7b1edf125a86c37ca3a5a.exe
    "C:\Users\Admin\AppData\Local\Temp\486e5455e5a7b1edf125a86c37ca3a5a.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:1256
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1256 -s 1836
      2⤵
        PID:2764

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      344B

      MD5

      11fefbc8fb876ddbb62216cf14b94b77

      SHA1

      707f3b6de3a7e9f0ff2ea29234679d62de7fd548

      SHA256

      b1a682111f1944c7faa8b44ad180fe9b9750eb9633870f21159668b7a04ffc00

      SHA512

      bda4055acc1783eb19b46e7444dc97e365ee8d94dac93544a3b42154afd18ef34c884643fc75175dbcdfa117d3af4bfa072efbaeae19e9fd49607de12dcdf2f9

    • C:\Users\Admin\AppData\Local\Temp\Cab4CDA.tmp

      Filesize

      65KB

      MD5

      ac05d27423a85adc1622c714f2cb6184

      SHA1

      b0fe2b1abddb97837ea0195be70ab2ff14d43198

      SHA256

      c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

      SHA512

      6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

    • C:\Users\Admin\AppData\Local\Temp\Tar712F.tmp

      Filesize

      171KB

      MD5

      9c0c641c06238516f27941aa1166d427

      SHA1

      64cd549fb8cf014fcd9312aa7a5b023847b6c977

      SHA256

      4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

      SHA512

      936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

    • memory/1256-0-0x0000000001110000-0x0000000001130000-memory.dmp

      Filesize

      128KB

    • memory/1256-1-0x000007FEF5070000-0x000007FEF5A5C000-memory.dmp

      Filesize

      9.9MB

    • memory/1256-2-0x000000001AE90000-0x000000001AF10000-memory.dmp

      Filesize

      512KB

    • memory/1256-64-0x000007FEF5070000-0x000007FEF5A5C000-memory.dmp

      Filesize

      9.9MB

    • memory/1256-65-0x000000001AE90000-0x000000001AF10000-memory.dmp

      Filesize

      512KB