Analysis

  • max time kernel
    145s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/05/2024, 19:31

General

  • Target
    2024-05-27_4ba83645890dc6332c5cd9e15b035491_cobalt-strike_cobaltstrike.exe
  • Size 5.9MB
  • Sample240527-x8hqmsgd66
  • SHA256 c79fd3ac1d655660c81b97555f9f887a00378c3644fc9997b96eca43085a7ad2
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • cobaltstrike

Botnet
  • 0

C2
  • http://ns7.softline.top:443/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books

  • http://ns8.softline.top:443/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books

  • http://ns9.softline.top:443/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books

Attributes
  • access_type

    512

  • beacon_type

    256

  • create_remote_thread

    768

  • crypto_scheme

    256

  • host

    ns7.softline.top,/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books,ns8.softline.top,/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books,ns9.softline.top,/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books

  • http_header1

    AAAACgAAAAtBY2NlcHQ6ICovKgAAAAoAAAAUSG9zdDogd3d3LmFtYXpvbi5jb20AAAAHAAAAAAAAAAMAAAACAAAADnNlc3Npb24tdG9rZW49AAAAAgAAAAxza2luPW5vc2tpbjsAAAABAAAALGNzbS1oaXQ9cy0yNEtVMTFCQjgyUlpTWUdKM0JES3wxNDE5ODk5MDEyOTk2AAAABgAAAAZDb29raWUAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • http_header2

    AAAACgAAAAtBY2NlcHQ6ICovKgAAAAoAAAAWQ29udGVudC1UeXBlOiB0ZXh0L3htbAAAAAoAAAAgWC1SZXF1ZXN0ZWQtV2l0aDogWE1MSHR0cFJlcXVlc3QAAAAKAAAAFEhvc3Q6IHd3dy5hbWF6b24uY29tAAAACQAAAApzej0xNjB4NjAwAAAACQAAABFvZT1vZT1JU08tODg1OS0xOwAAAAcAAAAAAAAABQAAAAJzbgAAAAkAAAAGcz0zNzE3AAAACQAAACJkY19yZWY9aHR0cCUzQSUyRiUyRnd3dy5hbWF6b24uY29tAAAABwAAAAEAAAADAAAABAAAAAAAAA==

  • http_method1

    GET

  • http_method2

    POST

  • maxdns

    255

  • pipe_name

    \\%s\pipe\msagent_%x

  • polling_time

    5000

  • port_number

    443

  • sc_process32

    %windir%\syswow64\rundll32.exe

  • sc_process64

    %windir%\sysnative\rundll32.exe

  • state_machine

    MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDI579oVVII0cYncGonU6vTWyFhqmq8w5QwvI8qsoWeV68Ngy+MjNPX2crcSVVWKQ3j09FII28KTmoE1XFVjEXF3WytRSlDe1OKfOAHX3XYkS9LcUAy0eRl2h4a73hrg1ir/rpisNT6hHtYaK3tmH8DgW/n1XfTfbWk1MZ7cXQHWQIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • unknown1

    4096

  • unknown2

    AAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • uri

    /N4215/adj/amzn.us.sr.aps

  • user_agent

    Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko

  • watermark

    0

Signatures

  • Cobalt Strike reflective loader 21 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 21 IoCs
  • UPX dump on OEP (original entry point) 64 IoCs
  • XMRig Miner payload 64 IoCs
  • Executes dropped EXE 21 IoCs
  • UPX packed file 64 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Windows directory 21 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-27_4ba83645890dc6332c5cd9e15b035491_cobalt-strike_cobaltstrike.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-27_4ba83645890dc6332c5cd9e15b035491_cobalt-strike_cobaltstrike.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1608
    • C:\Windows\System\UvBXtgf.exe
      C:\Windows\System\UvBXtgf.exe
      2⤵
      • Executes dropped EXE
      PID:3008
    • C:\Windows\System\PkwUuAx.exe
      C:\Windows\System\PkwUuAx.exe
      2⤵
      • Executes dropped EXE
      PID:3500
    • C:\Windows\System\kGbzKoU.exe
      C:\Windows\System\kGbzKoU.exe
      2⤵
      • Executes dropped EXE
      PID:2388
    • C:\Windows\System\YusJiCX.exe
      C:\Windows\System\YusJiCX.exe
      2⤵
      • Executes dropped EXE
      PID:4316
    • C:\Windows\System\nlzPPRG.exe
      C:\Windows\System\nlzPPRG.exe
      2⤵
      • Executes dropped EXE
      PID:2556
    • C:\Windows\System\egEuGnu.exe
      C:\Windows\System\egEuGnu.exe
      2⤵
      • Executes dropped EXE
      PID:2672
    • C:\Windows\System\pBUxNQK.exe
      C:\Windows\System\pBUxNQK.exe
      2⤵
      • Executes dropped EXE
      PID:4616
    • C:\Windows\System\zpMRlMA.exe
      C:\Windows\System\zpMRlMA.exe
      2⤵
      • Executes dropped EXE
      PID:2060
    • C:\Windows\System\BAbwEqx.exe
      C:\Windows\System\BAbwEqx.exe
      2⤵
      • Executes dropped EXE
      PID:1828
    • C:\Windows\System\RvqOANb.exe
      C:\Windows\System\RvqOANb.exe
      2⤵
      • Executes dropped EXE
      PID:1612
    • C:\Windows\System\kUOCIJc.exe
      C:\Windows\System\kUOCIJc.exe
      2⤵
      • Executes dropped EXE
      PID:4008
    • C:\Windows\System\KqjYGgW.exe
      C:\Windows\System\KqjYGgW.exe
      2⤵
      • Executes dropped EXE
      PID:3516
    • C:\Windows\System\oRUHwfW.exe
      C:\Windows\System\oRUHwfW.exe
      2⤵
      • Executes dropped EXE
      PID:4548
    • C:\Windows\System\sXFdcEr.exe
      C:\Windows\System\sXFdcEr.exe
      2⤵
      • Executes dropped EXE
      PID:2316
    • C:\Windows\System\EkVCGTn.exe
      C:\Windows\System\EkVCGTn.exe
      2⤵
      • Executes dropped EXE
      PID:2064
    • C:\Windows\System\mzZhNzL.exe
      C:\Windows\System\mzZhNzL.exe
      2⤵
      • Executes dropped EXE
      PID:2360
    • C:\Windows\System\GxdWlHk.exe
      C:\Windows\System\GxdWlHk.exe
      2⤵
      • Executes dropped EXE
      PID:4988
    • C:\Windows\System\ZfCfrDH.exe
      C:\Windows\System\ZfCfrDH.exe
      2⤵
      • Executes dropped EXE
      PID:4928
    • C:\Windows\System\nTYtmio.exe
      C:\Windows\System\nTYtmio.exe
      2⤵
      • Executes dropped EXE
      PID:1760
    • C:\Windows\System\vyXhKHc.exe
      C:\Windows\System\vyXhKHc.exe
      2⤵
      • Executes dropped EXE
      PID:5056
    • C:\Windows\System\EdLXXVS.exe
      C:\Windows\System\EdLXXVS.exe
      2⤵
      • Executes dropped EXE
      PID:2256

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        BAbwEqx.exe

        • Path C:\Windows\System\BAbwEqx.exe
        • Size 5.9MB
        • SHA256 8cda28c1c33b13d99a049484900d860e6df68e968fc7379cc33f476a874d498f
        • MD5 SHA1 SHA512 SSDEEP

        EdLXXVS.exe

        • Path C:\Windows\System\EdLXXVS.exe
        • Size 5.9MB
        • SHA256 82599c751594923ab1a6942d0bdd329a6c197a80cc112beb1bcb906a411ceb34
        • MD5 SHA1 SHA512 SSDEEP

        EkVCGTn.exe

        • Path C:\Windows\System\EkVCGTn.exe
        • Size 5.9MB
        • SHA256 45e6c0aeb1f46b49bebf436124e9006ef0828f7b8fc772158f9902bc71e996ea
        • MD5 SHA1 SHA512 SSDEEP

        GxdWlHk.exe

        • Path C:\Windows\System\GxdWlHk.exe
        • Size 5.9MB
        • SHA256 958bcf735e40f3140bd0a316d77083dd91314a780aff5c324cff7e00979c3dc5
        • MD5 SHA1 SHA512 SSDEEP

        KqjYGgW.exe

        • Path C:\Windows\System\KqjYGgW.exe
        • Size 5.9MB
        • SHA256 771a9f524a8a9587a2a9dbce457a7a22e70e3c0c6b10dcd52f52fa3a06e8a0d9
        • MD5 SHA1 SHA512 SSDEEP

        PkwUuAx.exe

        • Path C:\Windows\System\PkwUuAx.exe
        • Size 5.9MB
        • SHA256 bd3bf6e9d640145e323fb7f1e53609e7d40f5140e1ac69d12e10ed9f5c7fc8ae
        • MD5 SHA1 SHA512 SSDEEP

        RvqOANb.exe

        • Path C:\Windows\System\RvqOANb.exe
        • Size 5.9MB
        • SHA256 fdc2c30af6886ab9ed8151f63f320cd4e36395d29198bc549a8429f53b9eac5b
        • MD5 SHA1 SHA512 SSDEEP

        UvBXtgf.exe

        • Path C:\Windows\System\UvBXtgf.exe
        • Size 5.9MB
        • SHA256 50e73f894fb28c788f0333d6ac2c6f461a450735fcb310b49d9079e1cf48ec7e
        • MD5 SHA1 SHA512 SSDEEP

        YusJiCX.exe

        • Path C:\Windows\System\YusJiCX.exe
        • Size 5.9MB
        • SHA256 40c7cd3c2450ded38641ae0acd90a82115123ee0f3ccfedb8718cfeb4915898a
        • MD5 SHA1 SHA512 SSDEEP

        ZfCfrDH.exe

        • Path C:\Windows\System\ZfCfrDH.exe
        • Size 5.9MB
        • SHA256 8aae23cc9c0a13b51e0e73a5979c4a0d339a7e9110925c497802ea2ce36be407
        • MD5 SHA1 SHA512 SSDEEP

        egEuGnu.exe

        • Path C:\Windows\System\egEuGnu.exe
        • Size 5.9MB
        • SHA256 8affadf522d554146b1289b0043dbca44af9e07ec5ccfce0c8655db647229c43
        • MD5 SHA1 SHA512 SSDEEP

        kGbzKoU.exe

        • Path C:\Windows\System\kGbzKoU.exe
        • Size 5.9MB
        • SHA256 b30e885f42cd0a27a70cb0a3bf01d063ab2d6bec25881eaac9e94171dedcdae4
        • MD5 SHA1 SHA512 SSDEEP

        kUOCIJc.exe

        • Path C:\Windows\System\kUOCIJc.exe
        • Size 5.9MB
        • SHA256 8686062b0b6114c32882bdcfc36d61b4d4599bfc9ca4552db3b0982476944234
        • MD5 SHA1 SHA512 SSDEEP

        mzZhNzL.exe

        • Path C:\Windows\System\mzZhNzL.exe
        • Size 5.9MB
        • SHA256 64368d30ccb9e235d4b0032d492c2581b58c0d6486896c4f873367f9701537b4
        • MD5 SHA1 SHA512 SSDEEP

        nTYtmio.exe

        • Path C:\Windows\System\nTYtmio.exe
        • Size 5.9MB
        • SHA256 cc032c1339f47ab449f8cd6286107cf935823ed885e4ea0fc683b9e7e407362a
        • MD5 SHA1 SHA512 SSDEEP

        nlzPPRG.exe

        • Path C:\Windows\System\nlzPPRG.exe
        • Size 5.9MB
        • SHA256 5b8bef7bc2a4c1af5f182aa92cc7c7c876adf48ac6730a9c7cfdff9edcec6a7e
        • MD5 SHA1 SHA512 SSDEEP

        oRUHwfW.exe

        • Path C:\Windows\System\oRUHwfW.exe
        • Size 5.9MB
        • SHA256 327c997cfe92c1f5131a99b17ecc166ffe0fc9eb392a45ec355044ebec0175ef
        • MD5 SHA1 SHA512 SSDEEP

        pBUxNQK.exe

        • Path C:\Windows\System\pBUxNQK.exe
        • Size 5.9MB
        • SHA256 82e3325c49da5b2838d557c1fda1d2ee6e5e06c81971214a9ecb99789c7bcae3
        • MD5 SHA1 SHA512 SSDEEP

        sXFdcEr.exe

        • Path C:\Windows\System\sXFdcEr.exe
        • Size 5.9MB
        • SHA256 1bfb8a2dadab534e3835274da765ac699a7d847a7946c51e3da7045f94db0151
        • MD5 SHA1 SHA512 SSDEEP

        vyXhKHc.exe

        • Path C:\Windows\System\vyXhKHc.exe
        • Size 5.9MB
        • SHA256 6e0b01db67ded8b5000eb64cdddddd4da2d73ab321982ff3fb87801de09f8024
        • MD5 SHA1 SHA512 SSDEEP

        zpMRlMA.exe

        • Path C:\Windows\System\zpMRlMA.exe
        • Size 5.9MB
        • SHA256 69bf7b4b2aaedcb1ea46c4d4345155fcca801917c3d3d7f688137ecea9857447
        • MD5 SHA1 SHA512 SSDEEP

        memory/1608-0-0x00007FF7518D0000-0x00007FF751C24000-memory.dmp

        memory/1608-128-0x00007FF7518D0000-0x00007FF751C24000-memory.dmp

        memory/1608-1-0x000001E30EF70000-0x000001E30EF80000-memory.dmp

        memory/1612-138-0x00007FF76DA80000-0x00007FF76DDD4000-memory.dmp

        memory/1612-97-0x00007FF76DA80000-0x00007FF76DDD4000-memory.dmp

        memory/1760-126-0x00007FF6621F0000-0x00007FF662544000-memory.dmp

        memory/1760-150-0x00007FF6621F0000-0x00007FF662544000-memory.dmp

        memory/1828-139-0x00007FF689680000-0x00007FF6899D4000-memory.dmp

        memory/1828-93-0x00007FF689680000-0x00007FF6899D4000-memory.dmp

        memory/2060-141-0x00007FF6626C0000-0x00007FF662A14000-memory.dmp

        memory/2060-92-0x00007FF6626C0000-0x00007FF662A14000-memory.dmp

        memory/2064-118-0x00007FF647380000-0x00007FF6476D4000-memory.dmp

        memory/2064-144-0x00007FF647380000-0x00007FF6476D4000-memory.dmp

        memory/2256-127-0x00007FF6CF860000-0x00007FF6CFBB4000-memory.dmp

        memory/2256-149-0x00007FF6CF860000-0x00007FF6CFBB4000-memory.dmp

        memory/2316-143-0x00007FF7954C0000-0x00007FF795814000-memory.dmp

        memory/2316-113-0x00007FF7954C0000-0x00007FF795814000-memory.dmp

        memory/2360-151-0x00007FF6D2460000-0x00007FF6D27B4000-memory.dmp

        memory/2360-125-0x00007FF6D2460000-0x00007FF6D27B4000-memory.dmp

        memory/2388-25-0x00007FF64CA30000-0x00007FF64CD84000-memory.dmp

        memory/2388-136-0x00007FF64CA30000-0x00007FF64CD84000-memory.dmp

        memory/2556-134-0x00007FF761110000-0x00007FF761464000-memory.dmp

        memory/2556-87-0x00007FF761110000-0x00007FF761464000-memory.dmp

        memory/2672-38-0x00007FF607560000-0x00007FF6078B4000-memory.dmp

        memory/2672-135-0x00007FF607560000-0x00007FF6078B4000-memory.dmp

        memory/3008-9-0x00007FF60B6D0000-0x00007FF60BA24000-memory.dmp

        memory/3008-132-0x00007FF60B6D0000-0x00007FF60BA24000-memory.dmp

        memory/3008-129-0x00007FF60B6D0000-0x00007FF60BA24000-memory.dmp

        memory/3500-21-0x00007FF735A10000-0x00007FF735D64000-memory.dmp

        memory/3500-131-0x00007FF735A10000-0x00007FF735D64000-memory.dmp

        memory/3516-142-0x00007FF7C24B0000-0x00007FF7C2804000-memory.dmp

        memory/3516-110-0x00007FF7C24B0000-0x00007FF7C2804000-memory.dmp

        memory/4008-103-0x00007FF6E1C30000-0x00007FF6E1F84000-memory.dmp

        memory/4008-137-0x00007FF6E1C30000-0x00007FF6E1F84000-memory.dmp

        memory/4316-133-0x00007FF6F8BA0000-0x00007FF6F8EF4000-memory.dmp

        memory/4316-130-0x00007FF6F8BA0000-0x00007FF6F8EF4000-memory.dmp

        memory/4316-28-0x00007FF6F8BA0000-0x00007FF6F8EF4000-memory.dmp

        memory/4548-146-0x00007FF771740000-0x00007FF771A94000-memory.dmp

        memory/4548-112-0x00007FF771740000-0x00007FF771A94000-memory.dmp

        memory/4616-124-0x00007FF69D070000-0x00007FF69D3C4000-memory.dmp

        memory/4616-140-0x00007FF69D070000-0x00007FF69D3C4000-memory.dmp

        memory/4928-147-0x00007FF70C680000-0x00007FF70C9D4000-memory.dmp

        memory/4928-122-0x00007FF70C680000-0x00007FF70C9D4000-memory.dmp

        memory/4988-119-0x00007FF69BFC0000-0x00007FF69C314000-memory.dmp

        memory/4988-148-0x00007FF69BFC0000-0x00007FF69C314000-memory.dmp

        memory/5056-145-0x00007FF7775A0000-0x00007FF7778F4000-memory.dmp

        memory/5056-123-0x00007FF7775A0000-0x00007FF7778F4000-memory.dmp