Analysis

  • max time kernel
    93s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/06/2024, 20:26

General

  • Target
    2024-06-01_c70d3fa133e103cfdf6c3dd6eea3bf5f_cobalt-strike_cobaltstrike_xmrig.exe
  • Size 10.8MB
  • Sample240601-y75dpaea4s
  • SHA256 0e387f36394d1a4959e9e82cecf165b36c185fd7f312662c0a56bbaa6938d4e8
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Cobalt Strike reflective loader 1 IoCs

    Detects the reflective loader used by Cobalt Strike.

  • Cobaltstrike

    Detected malicious payload which is part of Cobaltstrike.

  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • Detects Reflective DLL injection artifacts 1 IoCs
  • Detects executables containing URLs to raw contents of a Github gist 7 IoCs
  • XMRig Miner payload 7 IoCs
  • Drops desktop.ini file(s) 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 4 IoCs
  • Drops autorun.inf file 1 TTPs 3 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in Program Files directory 64 IoCs
  • Modifies Internet Explorer start page 1 TTPs 2 IoCs
  • Modifies system certificate store 2 TTPs 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-01_c70d3fa133e103cfdf6c3dd6eea3bf5f_cobalt-strike_cobaltstrike_xmrig.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-01_c70d3fa133e103cfdf6c3dd6eea3bf5f_cobalt-strike_cobaltstrike_xmrig.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Drops autorun.inf file
    • Drops file in Program Files directory
    • Modifies Internet Explorer start page
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    PID:996

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7-zip.dll.exe

        • Path C:\Program Files\7-Zip\7-zip.dll.exe
        • Size 11.1MB
        • SHA256 c7958d2790448151e49d59d2bd6f0534bec2a6036dbd6d72a164c1c6c69fbe83
        • MD5 SHA1 SHA512 SSDEEP

        070E0202839D9D67350CD2613E78E416

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\070E0202839D9D67350CD2613E78E416
        • Size 1KB
        • SHA256 d73494e3446b02167573b3cde3ae1c8584ac26e15e45ac3ec0326708425d90fb
        • MD5 SHA1 SHA512

        77EC63BDA74BD0D0E0426DC8F8008506

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\77EC63BDA74BD0D0E0426DC8F8008506
        • Size 70KB
        • SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
        • MD5 SHA1 SHA512 SSDEEP

        070E0202839D9D67350CD2613E78E416

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\070E0202839D9D67350CD2613E78E416
        • Size 230B
        • SHA256 52ab7b59c5cb178b9fc7e66b7c9d7a2c4943320b4d11ddad34b47b43471a915b
        • MD5 SHA1 SHA512

        memory/996-887-0x0000000000400000-0x00000000010B2000-memory.dmp

        memory/996-527-0x0000000000400000-0x00000000010B2000-memory.dmp

        memory/996-0-0x00000000001F0000-0x0000000000200000-memory.dmp

        memory/996-1565-0x0000000000400000-0x00000000010B2000-memory.dmp

        memory/996-2031-0x0000000000400000-0x00000000010B2000-memory.dmp

        memory/996-2230-0x0000000000400000-0x00000000010B2000-memory.dmp

        memory/996-2277-0x0000000000060000-0x0000000000062000-memory.dmp

        memory/996-2282-0x0000000000400000-0x00000000010B2000-memory.dmp

        memory/996-2281-0x0000000000401000-0x0000000000A18000-memory.dmp