Analysis

  • max time kernel
    138s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/05/2024, 19:56

General

  • Target
    2024-05-31_a4fdbb0032babf8c9a7c9c5c1633ac9a_cobalt-strike_cobaltstrike.exe
  • Size 5.9MB
  • Sample240531-yn4ytabc6s
  • SHA256 0a453ba7845d8991a2487b9017690e4ebc4431349fc9bc21ea1b680d63a3607c
  • 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\2024-05-31_a4fdbb0032babf8c9a7c9c5c1633ac9a_cobalt-strike_cobaltstrike.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-31_a4fdbb0032babf8c9a7c9c5c1633ac9a_cobalt-strike_cobaltstrike.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2028
    • C:\Windows\System\kldElow.exe
      C:\Windows\System\kldElow.exe
      2⤵
      • Executes dropped EXE
      PID:2488
    • C:\Windows\System\KOlwMhv.exe
      C:\Windows\System\KOlwMhv.exe
      2⤵
      • Executes dropped EXE
      PID:3476
    • C:\Windows\System\bowLxBU.exe
      C:\Windows\System\bowLxBU.exe
      2⤵
      • Executes dropped EXE
      PID:4448
    • C:\Windows\System\BuQKqUf.exe
      C:\Windows\System\BuQKqUf.exe
      2⤵
      • Executes dropped EXE
      PID:3628
    • C:\Windows\System\qXirzKA.exe
      C:\Windows\System\qXirzKA.exe
      2⤵
      • Executes dropped EXE
      PID:2956
    • C:\Windows\System\DPtNuoH.exe
      C:\Windows\System\DPtNuoH.exe
      2⤵
      • Executes dropped EXE
      PID:4548
    • C:\Windows\System\rlIUugX.exe
      C:\Windows\System\rlIUugX.exe
      2⤵
      • Executes dropped EXE
      PID:4744
    • C:\Windows\System\RBezWgq.exe
      C:\Windows\System\RBezWgq.exe
      2⤵
      • Executes dropped EXE
      PID:1792
    • C:\Windows\System\QwwlJoW.exe
      C:\Windows\System\QwwlJoW.exe
      2⤵
      • Executes dropped EXE
      PID:2396
    • C:\Windows\System\YPxhIeV.exe
      C:\Windows\System\YPxhIeV.exe
      2⤵
      • Executes dropped EXE
      PID:2292
    • C:\Windows\System\teXkZoC.exe
      C:\Windows\System\teXkZoC.exe
      2⤵
      • Executes dropped EXE
      PID:4168
    • C:\Windows\System\aFLJmJr.exe
      C:\Windows\System\aFLJmJr.exe
      2⤵
      • Executes dropped EXE
      PID:2156
    • C:\Windows\System\EnNejOD.exe
      C:\Windows\System\EnNejOD.exe
      2⤵
      • Executes dropped EXE
      PID:3512
    • C:\Windows\System\UnbnpNc.exe
      C:\Windows\System\UnbnpNc.exe
      2⤵
      • Executes dropped EXE
      PID:428
    • C:\Windows\System\wVwriOf.exe
      C:\Windows\System\wVwriOf.exe
      2⤵
      • Executes dropped EXE
      PID:440
    • C:\Windows\System\GaZbKVT.exe
      C:\Windows\System\GaZbKVT.exe
      2⤵
      • Executes dropped EXE
      PID:2352
    • C:\Windows\System\kFzPKRJ.exe
      C:\Windows\System\kFzPKRJ.exe
      2⤵
      • Executes dropped EXE
      PID:2900
    • C:\Windows\System\GnAISoZ.exe
      C:\Windows\System\GnAISoZ.exe
      2⤵
      • Executes dropped EXE
      PID:4112
    • C:\Windows\System\bvqhsuP.exe
      C:\Windows\System\bvqhsuP.exe
      2⤵
      • Executes dropped EXE
      PID:3712
    • C:\Windows\System\mcJmjLi.exe
      C:\Windows\System\mcJmjLi.exe
      2⤵
      • Executes dropped EXE
      PID:3076
    • C:\Windows\System\oGRRgTo.exe
      C:\Windows\System\oGRRgTo.exe
      2⤵
      • Executes dropped EXE
      PID:4164

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        BuQKqUf.exe

        • Path C:\Windows\System\BuQKqUf.exe
        • Size 5.9MB
        • SHA256 6c2504b4ca67f64c64d2e206298b03c432b7e37949d05cd2015bef332e172c2f
        • MD5 SHA1 SHA512 SSDEEP

        DPtNuoH.exe

        • Path C:\Windows\System\DPtNuoH.exe
        • Size 5.9MB
        • SHA256 c0d28bb96e97696754b77f9e91406dc045606f5960cfca1d63f875490a5d3719
        • MD5 SHA1 SHA512 SSDEEP

        EnNejOD.exe

        • Path C:\Windows\System\EnNejOD.exe
        • Size 5.9MB
        • SHA256 bb5499f8bcf5b4c058d23c4ea9fbcdcd6d186f5819ca3f6328201e95ea39f0e0
        • MD5 SHA1 SHA512 SSDEEP

        GaZbKVT.exe

        • Path C:\Windows\System\GaZbKVT.exe
        • Size 5.9MB
        • SHA256 e94212631fb1cb5b61e2209e6e4296582ae06be13c1a89bbbed120666d460d24
        • MD5 SHA1 SHA512 SSDEEP

        GnAISoZ.exe

        • Path C:\Windows\System\GnAISoZ.exe
        • Size 5.9MB
        • SHA256 b215954d54c62fb9ef124de90f1765173c935df3eb15fcd7e29c1d2be486a9a6
        • MD5 SHA1 SHA512 SSDEEP

        KOlwMhv.exe

        • Path C:\Windows\System\KOlwMhv.exe
        • Size 5.9MB
        • SHA256 f95ba44c4f9815901acdc441eee6f2ef5521d6accc6610ce22327a111eb49105
        • MD5 SHA1 SHA512 SSDEEP

        QwwlJoW.exe

        • Path C:\Windows\System\QwwlJoW.exe
        • Size 5.9MB
        • SHA256 02ae051b4664799d11e9d478d59ec60547495897d96ecfe3ffa1012224fad23e
        • MD5 SHA1 SHA512 SSDEEP

        RBezWgq.exe

        • Path C:\Windows\System\RBezWgq.exe
        • Size 5.9MB
        • SHA256 52f085ba04ea233f7e02707a7a6c6eaebb20e775a11bf327ffb51bcf9ef6c995
        • MD5 SHA1 SHA512 SSDEEP

        UnbnpNc.exe

        • Path C:\Windows\System\UnbnpNc.exe
        • Size 5.9MB
        • SHA256 2e8c95d2c2019448ca4896fe939e4a3150b1e7fb6a0e2d7af288708b502dfec3
        • MD5 SHA1 SHA512 SSDEEP

        YPxhIeV.exe

        • Path C:\Windows\System\YPxhIeV.exe
        • Size 5.9MB
        • SHA256 aae0490a7c57ad9c3bc573b44dcaadf5c4eb00a9f7b42bfe3f1bb348d5694785
        • MD5 SHA1 SHA512 SSDEEP

        aFLJmJr.exe

        • Path C:\Windows\System\aFLJmJr.exe
        • Size 5.9MB
        • SHA256 7556c4b0258e832eb9274b4b460779fe9f7a97b72d00aacdfffc94a774bc427a
        • MD5 SHA1 SHA512 SSDEEP

        bowLxBU.exe

        • Path C:\Windows\System\bowLxBU.exe
        • Size 5.9MB
        • SHA256 b9c9da6c0cc673a10201d707e6b5d994a88f405e4af35323f7aac083c9c55241
        • MD5 SHA1 SHA512 SSDEEP

        bvqhsuP.exe

        • Path C:\Windows\System\bvqhsuP.exe
        • Size 5.9MB
        • SHA256 f3603c06d803b38887d6b6cac3b26de72ee0e0de5a403ce5a7adb638c1a52829
        • MD5 SHA1 SHA512 SSDEEP

        kFzPKRJ.exe

        • Path C:\Windows\System\kFzPKRJ.exe
        • Size 5.9MB
        • SHA256 83b14363cdf5249972d86ee2374a8c642310e9fca401a28099acfbe0d46e6def
        • MD5 SHA1 SHA512 SSDEEP

        kldElow.exe

        • Path C:\Windows\System\kldElow.exe
        • Size 5.9MB
        • SHA256 0e7f5180e90fbc5731d69961a84458326aacdc7752106f4f5a03637a6df21d25
        • MD5 SHA1 SHA512 SSDEEP

        mcJmjLi.exe

        • Path C:\Windows\System\mcJmjLi.exe
        • Size 5.9MB
        • SHA256 3c8dffd0c4012c64295f6de1bb9769ff225af44eae9a2f80b283e4617f4c806d
        • MD5 SHA1 SHA512 SSDEEP

        oGRRgTo.exe

        • Path C:\Windows\System\oGRRgTo.exe
        • Size 5.9MB
        • SHA256 4686c25cb6563288bb3462ee42628dc29b34e2b067ef216a531d2e7d38c60d6d
        • MD5 SHA1 SHA512 SSDEEP

        qXirzKA.exe

        • Path C:\Windows\System\qXirzKA.exe
        • Size 5.9MB
        • SHA256 96820b97a811af6851dcec48e760616b0f973eda693fd65358cd8abbc4453ad2
        • MD5 SHA1 SHA512 SSDEEP

        rlIUugX.exe

        • Path C:\Windows\System\rlIUugX.exe
        • Size 5.9MB
        • SHA256 a9fa3c211d0abbf11a78af6e9503c38178adcabcd4ba0c799a64d5516b2d08e8
        • MD5 SHA1 SHA512 SSDEEP

        teXkZoC.exe

        • Path C:\Windows\System\teXkZoC.exe
        • Size 5.9MB
        • SHA256 d3dcfd3abbe21cc7f7cfa8672aae3d3f6aa440bd1a773392f46dba06434019cc
        • MD5 SHA1 SHA512 SSDEEP

        wVwriOf.exe

        • Path C:\Windows\System\wVwriOf.exe
        • Size 5.9MB
        • SHA256 c60ba3b01d9cef32f420f06dc37b661c35565a033d7e5323f38e833859bd7ab1
        • MD5 SHA1 SHA512 SSDEEP

        memory/428-98-0x00007FF6092C0000-0x00007FF609614000-memory.dmp

        memory/428-154-0x00007FF6092C0000-0x00007FF609614000-memory.dmp

        memory/440-137-0x00007FF602860000-0x00007FF602BB4000-memory.dmp

        memory/440-156-0x00007FF602860000-0x00007FF602BB4000-memory.dmp

        memory/440-99-0x00007FF602860000-0x00007FF602BB4000-memory.dmp

        memory/1792-147-0x00007FF637BC0000-0x00007FF637F14000-memory.dmp

        memory/1792-43-0x00007FF637BC0000-0x00007FF637F14000-memory.dmp

        memory/1792-133-0x00007FF637BC0000-0x00007FF637F14000-memory.dmp

        memory/2028-1-0x00000216666E0000-0x00000216666F0000-memory.dmp

        memory/2028-63-0x00007FF6D0DC0000-0x00007FF6D1114000-memory.dmp

        memory/2028-0-0x00007FF6D0DC0000-0x00007FF6D1114000-memory.dmp

        memory/2156-80-0x00007FF60FD10000-0x00007FF610064000-memory.dmp

        memory/2156-152-0x00007FF60FD10000-0x00007FF610064000-memory.dmp

        memory/2292-150-0x00007FF6B7F00000-0x00007FF6B8254000-memory.dmp

        memory/2292-64-0x00007FF6B7F00000-0x00007FF6B8254000-memory.dmp

        memory/2352-138-0x00007FF747A70000-0x00007FF747DC4000-memory.dmp

        memory/2352-100-0x00007FF747A70000-0x00007FF747DC4000-memory.dmp

        memory/2352-155-0x00007FF747A70000-0x00007FF747DC4000-memory.dmp

        memory/2396-135-0x00007FF7A0C90000-0x00007FF7A0FE4000-memory.dmp

        memory/2396-148-0x00007FF7A0C90000-0x00007FF7A0FE4000-memory.dmp

        memory/2396-52-0x00007FF7A0C90000-0x00007FF7A0FE4000-memory.dmp

        memory/2488-69-0x00007FF780B60000-0x00007FF780EB4000-memory.dmp

        memory/2488-141-0x00007FF780B60000-0x00007FF780EB4000-memory.dmp

        memory/2488-8-0x00007FF780B60000-0x00007FF780EB4000-memory.dmp

        memory/2900-101-0x00007FF7328B0000-0x00007FF732C04000-memory.dmp

        memory/2900-157-0x00007FF7328B0000-0x00007FF732C04000-memory.dmp

        memory/2900-139-0x00007FF7328B0000-0x00007FF732C04000-memory.dmp

        memory/2956-32-0x00007FF6D1370000-0x00007FF6D16C4000-memory.dmp

        memory/2956-145-0x00007FF6D1370000-0x00007FF6D16C4000-memory.dmp

        memory/3076-131-0x00007FF774750000-0x00007FF774AA4000-memory.dmp

        memory/3076-160-0x00007FF774750000-0x00007FF774AA4000-memory.dmp

        memory/3476-18-0x00007FF6A1AD0000-0x00007FF6A1E24000-memory.dmp

        memory/3476-142-0x00007FF6A1AD0000-0x00007FF6A1E24000-memory.dmp

        memory/3512-153-0x00007FF698520000-0x00007FF698874000-memory.dmp

        memory/3512-136-0x00007FF698520000-0x00007FF698874000-memory.dmp

        memory/3512-83-0x00007FF698520000-0x00007FF698874000-memory.dmp

        memory/3628-111-0x00007FF6A6C00000-0x00007FF6A6F54000-memory.dmp

        memory/3628-144-0x00007FF6A6C00000-0x00007FF6A6F54000-memory.dmp

        memory/3628-24-0x00007FF6A6C00000-0x00007FF6A6F54000-memory.dmp

        memory/3712-159-0x00007FF77AC30000-0x00007FF77AF84000-memory.dmp

        memory/3712-122-0x00007FF77AC30000-0x00007FF77AF84000-memory.dmp

        memory/4112-140-0x00007FF70D320000-0x00007FF70D674000-memory.dmp

        memory/4112-158-0x00007FF70D320000-0x00007FF70D674000-memory.dmp

        memory/4112-114-0x00007FF70D320000-0x00007FF70D674000-memory.dmp

        memory/4164-132-0x00007FF7921E0000-0x00007FF792534000-memory.dmp

        memory/4164-161-0x00007FF7921E0000-0x00007FF792534000-memory.dmp

        memory/4168-151-0x00007FF69EEC0000-0x00007FF69F214000-memory.dmp

        memory/4168-70-0x00007FF69EEC0000-0x00007FF69F214000-memory.dmp

        memory/4448-23-0x00007FF73A1B0000-0x00007FF73A504000-memory.dmp

        memory/4448-143-0x00007FF73A1B0000-0x00007FF73A504000-memory.dmp

        memory/4448-79-0x00007FF73A1B0000-0x00007FF73A504000-memory.dmp

        memory/4548-130-0x00007FF7202B0000-0x00007FF720604000-memory.dmp

        memory/4548-37-0x00007FF7202B0000-0x00007FF720604000-memory.dmp

        memory/4548-146-0x00007FF7202B0000-0x00007FF720604000-memory.dmp

        memory/4744-149-0x00007FF67E7D0000-0x00007FF67EB24000-memory.dmp

        memory/4744-49-0x00007FF67E7D0000-0x00007FF67EB24000-memory.dmp

        memory/4744-134-0x00007FF67E7D0000-0x00007FF67EB24000-memory.dmp