Analysis

  • max time kernel
    121s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    14-10-2023 02:06

General

  • Target

    output.exe

  • Size

    41KB

  • MD5

    4f44a74b82f5b05dfe9474538009c0b6

  • SHA1

    b274532d0a88ba4b49cf6e4f08b3074aa3eb8ee1

  • SHA256

    48c7a3baf593016604a12523991918dde59315ec4bffe694cd439c1c8f53b049

  • SHA512

    2bbdea4451ae1916986596c12e05266bd3c48308759a296906339f40ad4dfffda8d875c03aa0bfbef53c95054540415b55fd4a9be0437d74e1649b29e76f7f46

  • SSDEEP

    768:pscoSf3GMXfT6axpDXswguZkeTWTjxKZKfgm3EhZq:2coSfnxEeTWTlF7EPq

Malware Config

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 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\output.exe
    "C:\Users\Admin\AppData\Local\Temp\output.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:2200
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2200 -s 1840
      2⤵
        PID:2476

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      344B

      MD5

      aa68a7a7f31dfa557c9d6a03220cc5f9

      SHA1

      2bb38a0bae956cd0274c0ed2eabd867c82041bcc

      SHA256

      412562c9d74046667f6e8d06390251e6de305cc009e41085ad2bf156e1223c7c

      SHA512

      9996109f061bc8858474ba36f787a033f2360995666c250ccac9ffaed48735e92e47f11c47fef7607d52d4b90dffae7b0988a06e23c1ab3230b9b3e050e82969

    • C:\Users\Admin\AppData\Local\Temp\Cab6FC5.tmp

      Filesize

      61KB

      MD5

      f3441b8572aae8801c04f3060b550443

      SHA1

      4ef0a35436125d6821831ef36c28ffaf196cda15

      SHA256

      6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

      SHA512

      5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

    • C:\Users\Admin\AppData\Local\Temp\Tar7055.tmp

      Filesize

      163KB

      MD5

      9441737383d21192400eca82fda910ec

      SHA1

      725e0d606a4fc9ba44aa8ffde65bed15e65367e4

      SHA256

      bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

      SHA512

      7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

    • memory/2200-0-0x0000000000160000-0x0000000000170000-memory.dmp

      Filesize

      64KB

    • memory/2200-1-0x000007FEF5CA0000-0x000007FEF668C000-memory.dmp

      Filesize

      9.9MB

    • memory/2200-2-0x000000001B030000-0x000000001B0B0000-memory.dmp

      Filesize

      512KB

    • memory/2200-64-0x000007FEF5CA0000-0x000007FEF668C000-memory.dmp

      Filesize

      9.9MB

    • memory/2200-65-0x000000001B030000-0x000000001B0B0000-memory.dmp

      Filesize

      512KB