Analysis

  • max time kernel
    118s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20231023-en
  • resource tags

    arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
  • submitted
    14-11-2023 18:52

General

  • Target

    7f45f62fe7d69849499b6b47380bb4ce96425dff4f4848acfb2b64f48c634c15.exe

  • Size

    42KB

  • MD5

    221e7f2c6e9d297d71df4e2b192e9b1c

  • SHA1

    4cca672ec1b56ea37bc404bbae28f1cd419e88ec

  • SHA256

    7f45f62fe7d69849499b6b47380bb4ce96425dff4f4848acfb2b64f48c634c15

  • SHA512

    1317b91ffe642fd8d496b3a85c60b8b48f39c0e88d8983e3f6a20e56cc080e9256c54c56337b4573ea49255ed19e93b85c7fc8b053114656064b2005d56cd768

  • SSDEEP

    768:V0eEROTjONG1uZYLEg0TjfKZKfgm3Eh14:iOTjoGTLEg0TrF7Ej4

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/905337671944118314/RjdLG0UxA1DjDMSnw0nxSckjdxWHA_va88xegNROO1MiJ9TRTwujMs9YFAJ_iGB7mw7W

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.

  • 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\7f45f62fe7d69849499b6b47380bb4ce96425dff4f4848acfb2b64f48c634c15.exe
    "C:\Users\Admin\AppData\Local\Temp\7f45f62fe7d69849499b6b47380bb4ce96425dff4f4848acfb2b64f48c634c15.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)
    • Enumerates system info in registry
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1716
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1716 -s 1748
      2⤵
        PID:2472

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      344B

      MD5

      3c9cbc26dcab9ce7de45191f1f91a392

      SHA1

      8de317832bcd4768e63ed6edf3429e7a2582f770

      SHA256

      a22d863360e699df27747df774e468e58a97ae852a2e0a4369dd5edbb319555b

      SHA512

      36c88a8d548a26f03bba0d556e1562a5424ec4645a0ad920f31566a05c544dfc2e982ab1050c0f793d83fd5374e0909c5e907abd71944bb9018a3d872f05bbdf

    • C:\Users\Admin\AppData\Local\Temp\Cab83A3.tmp

      Filesize

      61KB

      MD5

      f3441b8572aae8801c04f3060b550443

      SHA1

      4ef0a35436125d6821831ef36c28ffaf196cda15

      SHA256

      6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

      SHA512

      5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

    • C:\Users\Admin\AppData\Local\Temp\Tar83E4.tmp

      Filesize

      163KB

      MD5

      9441737383d21192400eca82fda910ec

      SHA1

      725e0d606a4fc9ba44aa8ffde65bed15e65367e4

      SHA256

      bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

      SHA512

      7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

    • memory/1716-0-0x0000000000E10000-0x0000000000E20000-memory.dmp

      Filesize

      64KB

    • memory/1716-1-0x000007FEF5200000-0x000007FEF5BEC000-memory.dmp

      Filesize

      9.9MB

    • memory/1716-2-0x0000000002260000-0x00000000022E0000-memory.dmp

      Filesize

      512KB

    • memory/1716-67-0x000007FEF5200000-0x000007FEF5BEC000-memory.dmp

      Filesize

      9.9MB

    • memory/1716-68-0x0000000002260000-0x00000000022E0000-memory.dmp

      Filesize

      512KB