Analysis

  • max time kernel
    28s
  • max time network
    30s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    08-06-2023 03:57

General

  • Target

    Mercurial Grabber.v1.03/Mercurial.exe

  • Size

    146KB

  • MD5

    0bf1054dd4f0ad45f4d5426996dc65bf

  • SHA1

    64b5fa861128640392dd69a8d224bb467ef68545

  • SHA256

    56550fecb5b916eac9280f2e20b0a6ea06041e18f88fb39531df029080bdbc7b

  • SHA512

    d6145e94762ff963ec83f716166c63f8d0e692f3f02ae94732b142c5b177826608906933b1490b0558a381702c7c4eb9877b27583f9cd3e5d294a2df0e66e62e

  • SSDEEP

    768:vscWcQ20/ave0QSwJuZheVWTj9KZKfgm3Eh2x2egFH4MkaL5PEs:Ec9eVWTBF7E8xUH4QL5cs

Malware Config

Extracted

Family

mercurialgrabber

C2

https://ptb.discord.com/api/webhooks/895223301373300776/4LFPS81olSXc9Stl05N1nV_de5bp6BZLZwfYl5WydodJ9w8AtEOpBRJrAJDKDvxbtGHz

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.

  • Looks up external IP address via web service 4 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.

  • Program crash 1 IoCs
  • 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\Mercurial Grabber.v1.03\Mercurial.exe
    "C:\Users\Admin\AppData\Local\Temp\Mercurial Grabber.v1.03\Mercurial.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:2000
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2000 -s 1872
      2⤵
      • Program crash
      PID:1892

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    62KB

    MD5

    3ac860860707baaf32469fa7cc7c0192

    SHA1

    c33c2acdaba0e6fa41fd2f00f186804722477639

    SHA256

    d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904

    SHA512

    d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c

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

    Filesize

    344B

    MD5

    3a625af768b78d6f8ca2579264da4cb4

    SHA1

    be3fde8c4510d66688990362f57b805a3cdc82aa

    SHA256

    ec5d8df845eaddf31c1468bb249a0f70a4ba6844f522b00f623d973784aa4af5

    SHA512

    6e2a599080ca61426e3220e071c2686f982de9cb58612fc04930366a098740b256e9eb8ae27b72fcbee8cd5e7f3f2e15d250e02719d204cfcf32579bf2106db3

  • C:\Users\Admin\AppData\Local\Temp\Cab3B10.tmp

    Filesize

    61KB

    MD5

    fc4666cbca561e864e7fdf883a9e6661

    SHA1

    2f8d6094c7a34bf12ea0bbf0d51ee9c5bb7939a5

    SHA256

    10f3deb6c452d749a7451b5d065f4c0449737e5ee8a44f4d15844b503141e65b

    SHA512

    c71f54b571e01f247f072be4bbebdf5d8410b67eb79a61e7e0d9853fe857ab9bd12f53e6af3394b935560178107291fc4be351b27deb388eba90ba949633d57d

  • C:\Users\Admin\AppData\Local\Temp\Tar3CDC.tmp

    Filesize

    164KB

    MD5

    4ff65ad929cd9a367680e0e5b1c08166

    SHA1

    c0af0d4396bd1f15c45f39d3b849ba444233b3a2

    SHA256

    c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6

    SHA512

    f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27

  • memory/2000-54-0x0000000000C90000-0x0000000000CBA000-memory.dmp

    Filesize

    168KB

  • memory/2000-55-0x000000001B1A0000-0x000000001B220000-memory.dmp

    Filesize

    512KB

  • memory/2000-142-0x000000001B1A0000-0x000000001B220000-memory.dmp

    Filesize

    512KB