Analysis

  • max time kernel
    134s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/05/2024, 01:09

General

  • Target
    2024-05-28_95ac2b862a501799118324d79d98ce3e_cobalt-strike_cobaltstrike.exe
  • Size 5.9MB
  • Sample240528-bhvfvsab32
  • SHA256 fe822c0360132e44e5419e85b4063c7d3fd4e72eefee3154f0801664f4d2e468
  • 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\2024-05-28_95ac2b862a501799118324d79d98ce3e_cobalt-strike_cobaltstrike.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-28_95ac2b862a501799118324d79d98ce3e_cobalt-strike_cobaltstrike.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2020
    • C:\Windows\System\fQWycvQ.exe
      C:\Windows\System\fQWycvQ.exe
      2⤵
      • Executes dropped EXE
      PID:620
    • C:\Windows\System\RkGjPTb.exe
      C:\Windows\System\RkGjPTb.exe
      2⤵
      • Executes dropped EXE
      PID:4264
    • C:\Windows\System\qJBlGgB.exe
      C:\Windows\System\qJBlGgB.exe
      2⤵
      • Executes dropped EXE
      PID:5020
    • C:\Windows\System\zGVOyWJ.exe
      C:\Windows\System\zGVOyWJ.exe
      2⤵
      • Executes dropped EXE
      PID:1124
    • C:\Windows\System\SFfsXZQ.exe
      C:\Windows\System\SFfsXZQ.exe
      2⤵
      • Executes dropped EXE
      PID:1252
    • C:\Windows\System\aOxjqmO.exe
      C:\Windows\System\aOxjqmO.exe
      2⤵
      • Executes dropped EXE
      PID:3576
    • C:\Windows\System\FrEHlgf.exe
      C:\Windows\System\FrEHlgf.exe
      2⤵
      • Executes dropped EXE
      PID:1828
    • C:\Windows\System\iepcViz.exe
      C:\Windows\System\iepcViz.exe
      2⤵
      • Executes dropped EXE
      PID:2544
    • C:\Windows\System\ToltheY.exe
      C:\Windows\System\ToltheY.exe
      2⤵
      • Executes dropped EXE
      PID:3132
    • C:\Windows\System\OLNrmsn.exe
      C:\Windows\System\OLNrmsn.exe
      2⤵
      • Executes dropped EXE
      PID:4540
    • C:\Windows\System\acHkAEa.exe
      C:\Windows\System\acHkAEa.exe
      2⤵
      • Executes dropped EXE
      PID:4276
    • C:\Windows\System\BxLMOSN.exe
      C:\Windows\System\BxLMOSN.exe
      2⤵
      • Executes dropped EXE
      PID:2740
    • C:\Windows\System\PSFtgsL.exe
      C:\Windows\System\PSFtgsL.exe
      2⤵
      • Executes dropped EXE
      PID:4524
    • C:\Windows\System\VikIcnz.exe
      C:\Windows\System\VikIcnz.exe
      2⤵
      • Executes dropped EXE
      PID:1704
    • C:\Windows\System\tLmwGVq.exe
      C:\Windows\System\tLmwGVq.exe
      2⤵
      • Executes dropped EXE
      PID:4872
    • C:\Windows\System\nOIGxnW.exe
      C:\Windows\System\nOIGxnW.exe
      2⤵
      • Executes dropped EXE
      PID:3304
    • C:\Windows\System\irpZIpK.exe
      C:\Windows\System\irpZIpK.exe
      2⤵
      • Executes dropped EXE
      PID:4344
    • C:\Windows\System\WnOgrBH.exe
      C:\Windows\System\WnOgrBH.exe
      2⤵
      • Executes dropped EXE
      PID:4864
    • C:\Windows\System\tbnXTBg.exe
      C:\Windows\System\tbnXTBg.exe
      2⤵
      • Executes dropped EXE
      PID:4364
    • C:\Windows\System\NjwoCxZ.exe
      C:\Windows\System\NjwoCxZ.exe
      2⤵
      • Executes dropped EXE
      PID:2400
    • C:\Windows\System\sgWgrqX.exe
      C:\Windows\System\sgWgrqX.exe
      2⤵
      • Executes dropped EXE
      PID:1916

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        BxLMOSN.exe

        • Path C:\Windows\System\BxLMOSN.exe
        • Size 5.9MB
        • SHA256 0061a311da493a70bb402f4d5a71a08363eecfdbede3d3290503a3a3ed752784
        • MD5 SHA1 SHA512 SSDEEP

        FrEHlgf.exe

        • Path C:\Windows\System\FrEHlgf.exe
        • Size 5.9MB
        • SHA256 d5134dd731731766e4aa82b3bbb026705e4e13843b48e6504c72dd9f1914f97c
        • MD5 SHA1 SHA512 SSDEEP

        NjwoCxZ.exe

        • Path C:\Windows\System\NjwoCxZ.exe
        • Size 5.9MB
        • SHA256 3c8b4cf156604b38a08e4bde45904a072a6462a174275089d987cabcec005db1
        • MD5 SHA1 SHA512 SSDEEP

        OLNrmsn.exe

        • Path C:\Windows\System\OLNrmsn.exe
        • Size 5.9MB
        • SHA256 61663362c49b47e534a23f923cfe96ae23f19ffd1f386db08dec369c95c1cd70
        • MD5 SHA1 SHA512 SSDEEP

        PSFtgsL.exe

        • Path C:\Windows\System\PSFtgsL.exe
        • Size 5.9MB
        • SHA256 9fdbe94a88feb66f68fd5fa9a7d16ab179593c476ffe9396eddea2ecf24be903
        • MD5 SHA1 SHA512 SSDEEP

        RkGjPTb.exe

        • Path C:\Windows\System\RkGjPTb.exe
        • Size 5.9MB
        • SHA256 56cf52819c90139eee2405f94a534a44112a82349d5614bd4c4532afd980b196
        • MD5 SHA1 SHA512 SSDEEP

        SFfsXZQ.exe

        • Path C:\Windows\System\SFfsXZQ.exe
        • Size 5.9MB
        • SHA256 af4e75be5e84a49af3c3a33ddcb5565e2395515f5ea4015745ab6dd8156cfefa
        • MD5 SHA1 SHA512 SSDEEP

        ToltheY.exe

        • Path C:\Windows\System\ToltheY.exe
        • Size 5.9MB
        • SHA256 0580aec7af09f6557d233779a02db054bd809591ea4b856e3d0f771016286cf0
        • MD5 SHA1 SHA512 SSDEEP

        VikIcnz.exe

        • Path C:\Windows\System\VikIcnz.exe
        • Size 5.9MB
        • SHA256 07608d1fa736fa4418325b58afbca8ca676dd73590443a2a958003b6aebbaa8f
        • MD5 SHA1 SHA512 SSDEEP

        WnOgrBH.exe

        • Path C:\Windows\System\WnOgrBH.exe
        • Size 5.9MB
        • SHA256 55167f197fa2d4e55a3f729125dea2787abe47055c30e4b8c87c1edae18c4e8d
        • MD5 SHA1 SHA512 SSDEEP

        aOxjqmO.exe

        • Path C:\Windows\System\aOxjqmO.exe
        • Size 5.9MB
        • SHA256 36a0a8656ea8a6735eb806d224e3cb14726486284b1b8c4728f8950ac7c6be91
        • MD5 SHA1 SHA512 SSDEEP

        acHkAEa.exe

        • Path C:\Windows\System\acHkAEa.exe
        • Size 5.9MB
        • SHA256 00e4e9db8333839eadb26832b77c29f97684fb2148d37ece7950c6d59f404801
        • MD5 SHA1 SHA512 SSDEEP

        fQWycvQ.exe

        • Path C:\Windows\System\fQWycvQ.exe
        • Size 5.9MB
        • SHA256 9af26cdca8ac298e4e5ad37c1a0d2117ec3e5e4a559e5f06532b6c90b21e8844
        • MD5 SHA1 SHA512 SSDEEP

        iepcViz.exe

        • Path C:\Windows\System\iepcViz.exe
        • Size 5.9MB
        • SHA256 ea01aaf6f8f98beb76a32c5d778aef29c5590159a3fe4bec4cf0d2991391a918
        • MD5 SHA1 SHA512 SSDEEP

        irpZIpK.exe

        • Path C:\Windows\System\irpZIpK.exe
        • Size 5.9MB
        • SHA256 5e70daaf51a262197d21f42d28b024beb2c59e8f4b2a4b747b21cc5172b73525
        • MD5 SHA1 SHA512 SSDEEP

        nOIGxnW.exe

        • Path C:\Windows\System\nOIGxnW.exe
        • Size 5.9MB
        • SHA256 b39c67ac1b68bfad48178942542a35f36dfafbb0a4d5a3be89cb974714f0b533
        • MD5 SHA1 SHA512 SSDEEP

        qJBlGgB.exe

        • Path C:\Windows\System\qJBlGgB.exe
        • Size 5.9MB
        • SHA256 c64754b8d5517ecae6b625d1e9601c7343cd49421407ccb936b55cece45e885d
        • MD5 SHA1 SHA512 SSDEEP

        sgWgrqX.exe

        • Path C:\Windows\System\sgWgrqX.exe
        • Size 5.9MB
        • SHA256 a455d98422845fcd9a4a74edacadeeaf74a535c57edb7eb77ab90e973f3e529e
        • MD5 SHA1 SHA512 SSDEEP

        tLmwGVq.exe

        • Path C:\Windows\System\tLmwGVq.exe
        • Size 5.9MB
        • SHA256 bf583b547c0e133586fd28461b174836dfa0ccbc41958827fa2859ce5e2b10b4
        • MD5 SHA1 SHA512 SSDEEP

        tbnXTBg.exe

        • Path C:\Windows\System\tbnXTBg.exe
        • Size 5.9MB
        • SHA256 f81a3b356fee4a9a58c9376209938e7580fb0496584aa6890cbfb01bb3e58a0a
        • MD5 SHA1 SHA512 SSDEEP

        zGVOyWJ.exe

        • Path C:\Windows\System\zGVOyWJ.exe
        • Size 5.9MB
        • SHA256 6d0b604345b58b454b28aeebe95f83b93376732aa07761ea1b44284504c300e2
        • MD5 SHA1 SHA512 SSDEEP

        memory/620-133-0x00007FF7FCA60000-0x00007FF7FCDB4000-memory.dmp

        memory/620-129-0x00007FF7FCA60000-0x00007FF7FCDB4000-memory.dmp

        memory/620-9-0x00007FF7FCA60000-0x00007FF7FCDB4000-memory.dmp

        memory/1124-32-0x00007FF6C8910000-0x00007FF6C8C64000-memory.dmp

        memory/1124-136-0x00007FF6C8910000-0x00007FF6C8C64000-memory.dmp

        memory/1252-137-0x00007FF7C0AA0000-0x00007FF7C0DF4000-memory.dmp

        memory/1252-131-0x00007FF7C0AA0000-0x00007FF7C0DF4000-memory.dmp

        memory/1252-38-0x00007FF7C0AA0000-0x00007FF7C0DF4000-memory.dmp

        memory/1704-115-0x00007FF7C5FC0000-0x00007FF7C6314000-memory.dmp

        memory/1704-144-0x00007FF7C5FC0000-0x00007FF7C6314000-memory.dmp

        memory/1828-43-0x00007FF6F24F0000-0x00007FF6F2844000-memory.dmp

        memory/1828-132-0x00007FF6F24F0000-0x00007FF6F2844000-memory.dmp

        memory/1828-141-0x00007FF6F24F0000-0x00007FF6F2844000-memory.dmp

        memory/1916-153-0x00007FF6A8280000-0x00007FF6A85D4000-memory.dmp

        memory/1916-124-0x00007FF6A8280000-0x00007FF6A85D4000-memory.dmp

        memory/2020-128-0x00007FF78F7C0000-0x00007FF78FB14000-memory.dmp

        memory/2020-0-0x00007FF78F7C0000-0x00007FF78FB14000-memory.dmp

        memory/2020-1-0x000001BD7F140000-0x000001BD7F150000-memory.dmp

        memory/2400-127-0x00007FF64E650000-0x00007FF64E9A4000-memory.dmp

        memory/2400-151-0x00007FF64E650000-0x00007FF64E9A4000-memory.dmp

        memory/2544-97-0x00007FF6EF3E0000-0x00007FF6EF734000-memory.dmp

        memory/2544-140-0x00007FF6EF3E0000-0x00007FF6EF734000-memory.dmp

        memory/2740-109-0x00007FF762710000-0x00007FF762A64000-memory.dmp

        memory/2740-146-0x00007FF762710000-0x00007FF762A64000-memory.dmp

        memory/3132-139-0x00007FF648770000-0x00007FF648AC4000-memory.dmp

        memory/3132-100-0x00007FF648770000-0x00007FF648AC4000-memory.dmp

        memory/3304-148-0x00007FF78A800000-0x00007FF78AB54000-memory.dmp

        memory/3304-121-0x00007FF78A800000-0x00007FF78AB54000-memory.dmp

        memory/3576-35-0x00007FF6365C0000-0x00007FF636914000-memory.dmp

        memory/3576-130-0x00007FF6365C0000-0x00007FF636914000-memory.dmp

        memory/3576-138-0x00007FF6365C0000-0x00007FF636914000-memory.dmp

        memory/4264-134-0x00007FF786CF0000-0x00007FF787044000-memory.dmp

        memory/4264-18-0x00007FF786CF0000-0x00007FF787044000-memory.dmp

        memory/4276-142-0x00007FF69F390000-0x00007FF69F6E4000-memory.dmp

        memory/4276-101-0x00007FF69F390000-0x00007FF69F6E4000-memory.dmp

        memory/4344-147-0x00007FF66DB70000-0x00007FF66DEC4000-memory.dmp

        memory/4344-122-0x00007FF66DB70000-0x00007FF66DEC4000-memory.dmp

        memory/4364-152-0x00007FF752330000-0x00007FF752684000-memory.dmp

        memory/4364-126-0x00007FF752330000-0x00007FF752684000-memory.dmp

        memory/4524-114-0x00007FF6549B0000-0x00007FF654D04000-memory.dmp

        memory/4524-145-0x00007FF6549B0000-0x00007FF654D04000-memory.dmp

        memory/4540-143-0x00007FF64F500000-0x00007FF64F854000-memory.dmp

        memory/4540-125-0x00007FF64F500000-0x00007FF64F854000-memory.dmp

        memory/4864-123-0x00007FF690710000-0x00007FF690A64000-memory.dmp

        memory/4864-150-0x00007FF690710000-0x00007FF690A64000-memory.dmp

        memory/4872-149-0x00007FF66D460000-0x00007FF66D7B4000-memory.dmp

        memory/4872-120-0x00007FF66D460000-0x00007FF66D7B4000-memory.dmp

        memory/5020-135-0x00007FF7599F0000-0x00007FF759D44000-memory.dmp

        memory/5020-26-0x00007FF7599F0000-0x00007FF759D44000-memory.dmp