Analysis

  • max time kernel
    138s
  • max time network
    149s
  • 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, 19:24

General

  • Target
    2024-05-31_043bca408cdb98403fa975a671ab594c_cobalt-strike_cobaltstrike.exe
  • Size 5.9MB
  • Sample240531-x4gmsabb72
  • SHA256 3e37e0761b25fffd306d2f1da6c5140f83b8364515c4cdb35ea5a3b3e0efffee
  • 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_043bca408cdb98403fa975a671ab594c_cobalt-strike_cobaltstrike.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-31_043bca408cdb98403fa975a671ab594c_cobalt-strike_cobaltstrike.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4964
    • C:\Windows\System\weWxArS.exe
      C:\Windows\System\weWxArS.exe
      2⤵
      • Executes dropped EXE
      PID:5084
    • C:\Windows\System\XxslqBI.exe
      C:\Windows\System\XxslqBI.exe
      2⤵
      • Executes dropped EXE
      PID:2480
    • C:\Windows\System\MgEaNKJ.exe
      C:\Windows\System\MgEaNKJ.exe
      2⤵
      • Executes dropped EXE
      PID:4160
    • C:\Windows\System\NqFLXeH.exe
      C:\Windows\System\NqFLXeH.exe
      2⤵
      • Executes dropped EXE
      PID:3752
    • C:\Windows\System\JlIBadd.exe
      C:\Windows\System\JlIBadd.exe
      2⤵
      • Executes dropped EXE
      PID:1940
    • C:\Windows\System\dSLdkFD.exe
      C:\Windows\System\dSLdkFD.exe
      2⤵
      • Executes dropped EXE
      PID:3292
    • C:\Windows\System\RAaDuSF.exe
      C:\Windows\System\RAaDuSF.exe
      2⤵
      • Executes dropped EXE
      PID:5108
    • C:\Windows\System\sJkjFTD.exe
      C:\Windows\System\sJkjFTD.exe
      2⤵
      • Executes dropped EXE
      PID:3952
    • C:\Windows\System\RwfvmWN.exe
      C:\Windows\System\RwfvmWN.exe
      2⤵
      • Executes dropped EXE
      PID:5032
    • C:\Windows\System\uXxdTFX.exe
      C:\Windows\System\uXxdTFX.exe
      2⤵
      • Executes dropped EXE
      PID:880
    • C:\Windows\System\joASnLe.exe
      C:\Windows\System\joASnLe.exe
      2⤵
      • Executes dropped EXE
      PID:4156
    • C:\Windows\System\tKRjYkm.exe
      C:\Windows\System\tKRjYkm.exe
      2⤵
      • Executes dropped EXE
      PID:436
    • C:\Windows\System\RxrIFqO.exe
      C:\Windows\System\RxrIFqO.exe
      2⤵
      • Executes dropped EXE
      PID:2272
    • C:\Windows\System\HGIrOil.exe
      C:\Windows\System\HGIrOil.exe
      2⤵
      • Executes dropped EXE
      PID:4872
    • C:\Windows\System\LTOHROv.exe
      C:\Windows\System\LTOHROv.exe
      2⤵
      • Executes dropped EXE
      PID:4412
    • C:\Windows\System\SRbGKsp.exe
      C:\Windows\System\SRbGKsp.exe
      2⤵
      • Executes dropped EXE
      PID:1156
    • C:\Windows\System\tBHXodw.exe
      C:\Windows\System\tBHXodw.exe
      2⤵
      • Executes dropped EXE
      PID:4608
    • C:\Windows\System\BwdIzax.exe
      C:\Windows\System\BwdIzax.exe
      2⤵
      • Executes dropped EXE
      PID:4488
    • C:\Windows\System\eywktWj.exe
      C:\Windows\System\eywktWj.exe
      2⤵
      • Executes dropped EXE
      PID:3980
    • C:\Windows\System\xBBvHQa.exe
      C:\Windows\System\xBBvHQa.exe
      2⤵
      • Executes dropped EXE
      PID:1744
    • C:\Windows\System\ntEkBXl.exe
      C:\Windows\System\ntEkBXl.exe
      2⤵
      • Executes dropped EXE
      PID:1108

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        BwdIzax.exe

        • Path C:\Windows\System\BwdIzax.exe
        • Size 5.9MB
        • SHA256 c9a21289219000ae42988bbcceb13daff695875bcf4a9f4546883065eab7a2b2
        • MD5 SHA1 SHA512 SSDEEP

        HGIrOil.exe

        • Path C:\Windows\System\HGIrOil.exe
        • Size 5.9MB
        • SHA256 3b4d9785b4cfca27170eea9bb4e4a898a5dccd45a20b7eb86d33afd0777009d5
        • MD5 SHA1 SHA512 SSDEEP

        JlIBadd.exe

        • Path C:\Windows\System\JlIBadd.exe
        • Size 5.9MB
        • SHA256 ce6b52d34d2c6883e8e249c889d4361fc98d25d0d25363de14403d9faa50e5b1
        • MD5 SHA1 SHA512 SSDEEP

        LTOHROv.exe

        • Path C:\Windows\System\LTOHROv.exe
        • Size 5.9MB
        • SHA256 fb0c56bfacfa7ef3165a2819979a22e77aa169a7e3fa54c7afe5879bf9058ffd
        • MD5 SHA1 SHA512 SSDEEP

        MgEaNKJ.exe

        • Path C:\Windows\System\MgEaNKJ.exe
        • Size 5.9MB
        • SHA256 9f031e50ee1d98c1f6e77c0e60cabe49a092e484670b919b9162986f66ff0986
        • MD5 SHA1 SHA512 SSDEEP

        NqFLXeH.exe

        • Path C:\Windows\System\NqFLXeH.exe
        • Size 5.9MB
        • SHA256 efef225e820519fbdd69234fa3fc563059779c1b41c9ce8497374c81163e71b2
        • MD5 SHA1 SHA512 SSDEEP

        RAaDuSF.exe

        • Path C:\Windows\System\RAaDuSF.exe
        • Size 5.9MB
        • SHA256 3ce7ebfc5b43072e4b108af471dcd93b17688d0a8ea54f2d2cf63c714f703464
        • MD5 SHA1 SHA512 SSDEEP

        RwfvmWN.exe

        • Path C:\Windows\System\RwfvmWN.exe
        • Size 5.9MB
        • SHA256 b1e3cfcc6c276489852c26b9c4df00461c115a367f821a06dafbb00d69879bac
        • MD5 SHA1 SHA512 SSDEEP

        RxrIFqO.exe

        • Path C:\Windows\System\RxrIFqO.exe
        • Size 5.9MB
        • SHA256 e7ccff6f79c0daebba60c98ed189e03668446e2d6bbf75b3dd0ca985f8ecb3ee
        • MD5 SHA1 SHA512 SSDEEP

        SRbGKsp.exe

        • Path C:\Windows\System\SRbGKsp.exe
        • Size 5.9MB
        • SHA256 d5aedef31cb8d87d341ac36ee66f7c8a10d9f8d290d935232e6d083511c52af4
        • MD5 SHA1 SHA512 SSDEEP

        XxslqBI.exe

        • Path C:\Windows\System\XxslqBI.exe
        • Size 5.9MB
        • SHA256 319fb456caa32ebd77dd60de185414a62868724be1790c66be65fe4d5578de6b
        • MD5 SHA1 SHA512 SSDEEP

        dSLdkFD.exe

        • Path C:\Windows\System\dSLdkFD.exe
        • Size 5.9MB
        • SHA256 2a65234f6c488081f8ed67d4f417f7bf053b60e3ec0130cc601b09c4e9b529d9
        • MD5 SHA1 SHA512 SSDEEP

        eywktWj.exe

        • Path C:\Windows\System\eywktWj.exe
        • Size 5.9MB
        • SHA256 ff761667da9e37de712e2f7483f69498d1d224ff253b38325f7df6e98ecaf1f9
        • MD5 SHA1 SHA512 SSDEEP

        joASnLe.exe

        • Path C:\Windows\System\joASnLe.exe
        • Size 5.9MB
        • SHA256 141de55f7765cf0754d0e1a27faea3966bafc45d5e7be4a9ec818025b3e6bbc6
        • MD5 SHA1 SHA512 SSDEEP

        ntEkBXl.exe

        • Path C:\Windows\System\ntEkBXl.exe
        • Size 5.9MB
        • SHA256 de57ab1ac0c63eb016d414cee2afd8b9a92f508eefbd1bedf24311bd199733e4
        • MD5 SHA1 SHA512 SSDEEP

        sJkjFTD.exe

        • Path C:\Windows\System\sJkjFTD.exe
        • Size 5.9MB
        • SHA256 0226434381f5f6fd6b69b7cb1ad824b477252a427ba1ed55e4c5c5749bea173e
        • MD5 SHA1 SHA512 SSDEEP

        tBHXodw.exe

        • Path C:\Windows\System\tBHXodw.exe
        • Size 5.9MB
        • SHA256 74ee59056ff6ffd260a5d0409ce0f4057bbe384c2b9dedf3d67b18fbbd26b7b0
        • MD5 SHA1 SHA512 SSDEEP

        tKRjYkm.exe

        • Path C:\Windows\System\tKRjYkm.exe
        • Size 5.9MB
        • SHA256 8cb9f29cd84b9c97d4341628a04d8bb65fab5f86245a62f3df4629dd4ff37b99
        • MD5 SHA1 SHA512 SSDEEP

        uXxdTFX.exe

        • Path C:\Windows\System\uXxdTFX.exe
        • Size 5.9MB
        • SHA256 330a8d5f271a1c5d851b2bfd41b53008f838429966873d281851a3a2adbf6c12
        • MD5 SHA1 SHA512 SSDEEP

        weWxArS.exe

        • Path C:\Windows\System\weWxArS.exe
        • Size 5.9MB
        • SHA256 d448832425c47390dad45f91b1091ff3ab4d01a3b26d49a01677c26b15e11c2a
        • MD5 SHA1 SHA512 SSDEEP

        xBBvHQa.exe

        • Path C:\Windows\System\xBBvHQa.exe
        • Size 5.9MB
        • SHA256 24ccf1365b3e4b7755d91b6ae70e2862c703be5b337fe951d46ac6152750d803
        • MD5 SHA1 SHA512 SSDEEP

        memory/436-151-0x00007FF761C20000-0x00007FF761F74000-memory.dmp

        memory/436-75-0x00007FF761C20000-0x00007FF761F74000-memory.dmp

        memory/880-149-0x00007FF6117E0000-0x00007FF611B34000-memory.dmp

        memory/880-126-0x00007FF6117E0000-0x00007FF611B34000-memory.dmp

        memory/880-60-0x00007FF6117E0000-0x00007FF611B34000-memory.dmp

        memory/1108-134-0x00007FF620460000-0x00007FF6207B4000-memory.dmp

        memory/1108-160-0x00007FF620460000-0x00007FF6207B4000-memory.dmp

        memory/1156-105-0x00007FF773720000-0x00007FF773A74000-memory.dmp

        memory/1156-155-0x00007FF773720000-0x00007FF773A74000-memory.dmp

        memory/1744-129-0x00007FF66FAF0000-0x00007FF66FE44000-memory.dmp

        memory/1744-139-0x00007FF66FAF0000-0x00007FF66FE44000-memory.dmp

        memory/1744-159-0x00007FF66FAF0000-0x00007FF66FE44000-memory.dmp

        memory/1940-102-0x00007FF76A100000-0x00007FF76A454000-memory.dmp

        memory/1940-31-0x00007FF76A100000-0x00007FF76A454000-memory.dmp

        memory/1940-144-0x00007FF76A100000-0x00007FF76A454000-memory.dmp

        memory/2272-152-0x00007FF6D9B70000-0x00007FF6D9EC4000-memory.dmp

        memory/2272-80-0x00007FF6D9B70000-0x00007FF6D9EC4000-memory.dmp

        memory/2272-135-0x00007FF6D9B70000-0x00007FF6D9EC4000-memory.dmp

        memory/2480-141-0x00007FF763880000-0x00007FF763BD4000-memory.dmp

        memory/2480-12-0x00007FF763880000-0x00007FF763BD4000-memory.dmp

        memory/2480-79-0x00007FF763880000-0x00007FF763BD4000-memory.dmp

        memory/3292-106-0x00007FF61A1E0000-0x00007FF61A534000-memory.dmp

        memory/3292-146-0x00007FF61A1E0000-0x00007FF61A534000-memory.dmp

        memory/3292-36-0x00007FF61A1E0000-0x00007FF61A534000-memory.dmp

        memory/3752-143-0x00007FF7FE600000-0x00007FF7FE954000-memory.dmp

        memory/3752-26-0x00007FF7FE600000-0x00007FF7FE954000-memory.dmp

        memory/3952-114-0x00007FF7EA8B0000-0x00007FF7EAC04000-memory.dmp

        memory/3952-147-0x00007FF7EA8B0000-0x00007FF7EAC04000-memory.dmp

        memory/3952-50-0x00007FF7EA8B0000-0x00007FF7EAC04000-memory.dmp

        memory/3980-120-0x00007FF682630000-0x00007FF682984000-memory.dmp

        memory/3980-158-0x00007FF682630000-0x00007FF682984000-memory.dmp

        memory/3980-138-0x00007FF682630000-0x00007FF682984000-memory.dmp

        memory/4156-150-0x00007FF742B30000-0x00007FF742E84000-memory.dmp

        memory/4156-69-0x00007FF742B30000-0x00007FF742E84000-memory.dmp

        memory/4160-142-0x00007FF744810000-0x00007FF744B64000-memory.dmp

        memory/4160-88-0x00007FF744810000-0x00007FF744B64000-memory.dmp

        memory/4160-22-0x00007FF744810000-0x00007FF744B64000-memory.dmp

        memory/4412-97-0x00007FF7CF570000-0x00007FF7CF8C4000-memory.dmp

        memory/4412-154-0x00007FF7CF570000-0x00007FF7CF8C4000-memory.dmp

        memory/4488-118-0x00007FF7B8A10000-0x00007FF7B8D64000-memory.dmp

        memory/4488-137-0x00007FF7B8A10000-0x00007FF7B8D64000-memory.dmp

        memory/4488-157-0x00007FF7B8A10000-0x00007FF7B8D64000-memory.dmp

        memory/4608-136-0x00007FF72F3E0000-0x00007FF72F734000-memory.dmp

        memory/4608-107-0x00007FF72F3E0000-0x00007FF72F734000-memory.dmp

        memory/4608-156-0x00007FF72F3E0000-0x00007FF72F734000-memory.dmp

        memory/4872-89-0x00007FF73D030000-0x00007FF73D384000-memory.dmp

        memory/4872-153-0x00007FF73D030000-0x00007FF73D384000-memory.dmp

        memory/4964-68-0x00007FF7D5550000-0x00007FF7D58A4000-memory.dmp

        memory/4964-0-0x00007FF7D5550000-0x00007FF7D58A4000-memory.dmp

        memory/4964-1-0x000001A2FFEC0000-0x000001A2FFED0000-memory.dmp

        memory/5032-148-0x00007FF79D450000-0x00007FF79D7A4000-memory.dmp

        memory/5032-56-0x00007FF79D450000-0x00007FF79D7A4000-memory.dmp

        memory/5084-140-0x00007FF68B350000-0x00007FF68B6A4000-memory.dmp

        memory/5084-8-0x00007FF68B350000-0x00007FF68B6A4000-memory.dmp

        memory/5108-145-0x00007FF7E2D40000-0x00007FF7E3094000-memory.dmp

        memory/5108-47-0x00007FF7E2D40000-0x00007FF7E3094000-memory.dmp