Analysis

  • max time kernel
    138s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/06/2024, 11:33

General

  • Target
    2024-06-01_8f31c8a9b31dfbb1a503f8dfa43a916f_cobalt-strike_cobaltstrike.exe
  • Size 5.9MB
  • Sample240601-npc7dacb37
  • SHA256 e4f988fdf8637baab71e1683c014b562621ac00fa2937f5191efdce75bd64e88
  • 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\2024-06-01_8f31c8a9b31dfbb1a503f8dfa43a916f_cobalt-strike_cobaltstrike.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-01_8f31c8a9b31dfbb1a503f8dfa43a916f_cobalt-strike_cobaltstrike.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1940
    • C:\Windows\System\jmNucrC.exe
      C:\Windows\System\jmNucrC.exe
      2⤵
      • Executes dropped EXE
      PID:3796
    • C:\Windows\System\Socrbjh.exe
      C:\Windows\System\Socrbjh.exe
      2⤵
      • Executes dropped EXE
      PID:1736
    • C:\Windows\System\rbNfZnc.exe
      C:\Windows\System\rbNfZnc.exe
      2⤵
      • Executes dropped EXE
      PID:2736
    • C:\Windows\System\yGtvSIA.exe
      C:\Windows\System\yGtvSIA.exe
      2⤵
      • Executes dropped EXE
      PID:3016
    • C:\Windows\System\NiiZceg.exe
      C:\Windows\System\NiiZceg.exe
      2⤵
      • Executes dropped EXE
      PID:4516
    • C:\Windows\System\TawXTDe.exe
      C:\Windows\System\TawXTDe.exe
      2⤵
      • Executes dropped EXE
      PID:436
    • C:\Windows\System\UMwKnpn.exe
      C:\Windows\System\UMwKnpn.exe
      2⤵
      • Executes dropped EXE
      PID:3620
    • C:\Windows\System\uhjQSqo.exe
      C:\Windows\System\uhjQSqo.exe
      2⤵
      • Executes dropped EXE
      PID:5016
    • C:\Windows\System\BWgWbJY.exe
      C:\Windows\System\BWgWbJY.exe
      2⤵
      • Executes dropped EXE
      PID:1444
    • C:\Windows\System\iKBtNNI.exe
      C:\Windows\System\iKBtNNI.exe
      2⤵
      • Executes dropped EXE
      PID:2776
    • C:\Windows\System\EwEmeIp.exe
      C:\Windows\System\EwEmeIp.exe
      2⤵
      • Executes dropped EXE
      PID:748
    • C:\Windows\System\XSbnaFj.exe
      C:\Windows\System\XSbnaFj.exe
      2⤵
      • Executes dropped EXE
      PID:2768
    • C:\Windows\System\vSXCwIW.exe
      C:\Windows\System\vSXCwIW.exe
      2⤵
      • Executes dropped EXE
      PID:4720
    • C:\Windows\System\AroTPPi.exe
      C:\Windows\System\AroTPPi.exe
      2⤵
      • Executes dropped EXE
      PID:4852
    • C:\Windows\System\YgaeyFS.exe
      C:\Windows\System\YgaeyFS.exe
      2⤵
      • Executes dropped EXE
      PID:4628
    • C:\Windows\System\hqvGnfs.exe
      C:\Windows\System\hqvGnfs.exe
      2⤵
      • Executes dropped EXE
      PID:3376
    • C:\Windows\System\KHwZxWf.exe
      C:\Windows\System\KHwZxWf.exe
      2⤵
      • Executes dropped EXE
      PID:3656
    • C:\Windows\System\iTYJTUy.exe
      C:\Windows\System\iTYJTUy.exe
      2⤵
      • Executes dropped EXE
      PID:4784
    • C:\Windows\System\QYZGCJL.exe
      C:\Windows\System\QYZGCJL.exe
      2⤵
      • Executes dropped EXE
      PID:4436
    • C:\Windows\System\flsEawX.exe
      C:\Windows\System\flsEawX.exe
      2⤵
      • Executes dropped EXE
      PID:3968
    • C:\Windows\System\srZdlbh.exe
      C:\Windows\System\srZdlbh.exe
      2⤵
      • Executes dropped EXE
      PID:2796

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        AroTPPi.exe

        • Path C:\Windows\System\AroTPPi.exe
        • Size 5.9MB
        • SHA256 f713128d09e5890120da1489b6b8b6eeaa5c255103e79af247c81c7504c0c981
        • MD5 SHA1 SHA512 SSDEEP

        BWgWbJY.exe

        • Path C:\Windows\System\BWgWbJY.exe
        • Size 5.9MB
        • SHA256 f923943f3215955aa9e4b807ecf4823a507fe6c5250cc2e309f7b7605ada4de7
        • MD5 SHA1 SHA512 SSDEEP

        EwEmeIp.exe

        • Path C:\Windows\System\EwEmeIp.exe
        • Size 5.9MB
        • SHA256 f0dccc7968bf4227e3aed8a626389a63a0155b225a85ad27637c28833c32e4f3
        • MD5 SHA1 SHA512 SSDEEP

        KHwZxWf.exe

        • Path C:\Windows\System\KHwZxWf.exe
        • Size 5.9MB
        • SHA256 a5ed9468a28509fd1cb51aeb4690105d76a6106fceeb873417d89ba3a35da653
        • MD5 SHA1 SHA512 SSDEEP

        NiiZceg.exe

        • Path C:\Windows\System\NiiZceg.exe
        • Size 5.9MB
        • SHA256 8d9e8040c6e12f2631aef6c413c338e8d725b2faaf691389f589ac1bf045a39b
        • MD5 SHA1 SHA512 SSDEEP

        QYZGCJL.exe

        • Path C:\Windows\System\QYZGCJL.exe
        • Size 5.9MB
        • SHA256 736bf491e5656dc38e2894fbc20fc80fd39d448358f5a41a2bfef992f935310c
        • MD5 SHA1 SHA512 SSDEEP

        Socrbjh.exe

        • Path C:\Windows\System\Socrbjh.exe
        • Size 5.9MB
        • SHA256 af0cfc8cb1a0a880fd39a6a7b9210dd967be8c9772f1373f8cb6cc893ca43781
        • MD5 SHA1 SHA512 SSDEEP

        TawXTDe.exe

        • Path C:\Windows\System\TawXTDe.exe
        • Size 5.9MB
        • SHA256 6a2218aa3926a8a625f3c569e954c52f3e1a78f1c4002951002e81802afaf690
        • MD5 SHA1 SHA512 SSDEEP

        UMwKnpn.exe

        • Path C:\Windows\System\UMwKnpn.exe
        • Size 5.9MB
        • SHA256 a56da95dce672d60e7db7120c0b34b96ab0200b05c79f9ed0ad2a31ad5d426aa
        • MD5 SHA1 SHA512 SSDEEP

        XSbnaFj.exe

        • Path C:\Windows\System\XSbnaFj.exe
        • Size 5.9MB
        • SHA256 68619af4ee0ec7e41ca1c35c43cb81d99854c4a2634ab21cf1066fda9bf548d4
        • MD5 SHA1 SHA512 SSDEEP

        YgaeyFS.exe

        • Path C:\Windows\System\YgaeyFS.exe
        • Size 5.9MB
        • SHA256 f67f8cc3b61c677398e78b36076221c4a2e13dd2d39eb94254c791c89166f129
        • MD5 SHA1 SHA512 SSDEEP

        flsEawX.exe

        • Path C:\Windows\System\flsEawX.exe
        • Size 5.9MB
        • SHA256 ad19e4c79c17af395be9dfd397b13159b98e07a41d44d8040441a099913ee16b
        • MD5 SHA1 SHA512 SSDEEP

        hqvGnfs.exe

        • Path C:\Windows\System\hqvGnfs.exe
        • Size 5.9MB
        • SHA256 1e3cf75ab5929aef587b0d459a1eff6930980f2db64f62f51334ff31ec75ec78
        • MD5 SHA1 SHA512 SSDEEP

        iKBtNNI.exe

        • Path C:\Windows\System\iKBtNNI.exe
        • Size 5.9MB
        • SHA256 a3e559226d79a32b9050f24ac5b4bbec471abacf619a0fe27a4482680d537ad0
        • MD5 SHA1 SHA512 SSDEEP

        iTYJTUy.exe

        • Path C:\Windows\System\iTYJTUy.exe
        • Size 5.9MB
        • SHA256 16e308d40fb9572a0b35e5f687537b2f13d5738d4e6f205970ab992ca7d259b9
        • MD5 SHA1 SHA512 SSDEEP

        jmNucrC.exe

        • Path C:\Windows\System\jmNucrC.exe
        • Size 5.9MB
        • SHA256 423b46068b31098061d73fa9928ad38c53893974c2b333aaa2934c40a82df822
        • MD5 SHA1 SHA512 SSDEEP

        rbNfZnc.exe

        • Path C:\Windows\System\rbNfZnc.exe
        • Size 5.9MB
        • SHA256 6b98a497452e4bd82121a34d1b118831ff622a8c14866b64afa7edffeb5c081d
        • MD5 SHA1 SHA512 SSDEEP

        srZdlbh.exe

        • Path C:\Windows\System\srZdlbh.exe
        • Size 5.9MB
        • SHA256 1f82390cd01618c499061196f7e20cb29eafdc3effe2faa6dc79735c6790a60a
        • MD5 SHA1 SHA512 SSDEEP

        uhjQSqo.exe

        • Path C:\Windows\System\uhjQSqo.exe
        • Size 5.9MB
        • SHA256 81e0d93247c4453eec3233935194fcfe950a89f4e31949526cb86adeb5b5c126
        • MD5 SHA1 SHA512 SSDEEP

        vSXCwIW.exe

        • Path C:\Windows\System\vSXCwIW.exe
        • Size 5.9MB
        • SHA256 b0ae1eb9df65051c6119392dca5787be71475b2a053aa1496cda54a747194d28
        • MD5 SHA1 SHA512 SSDEEP

        yGtvSIA.exe

        • Path C:\Windows\System\yGtvSIA.exe
        • Size 5.9MB
        • SHA256 16f6ab48ee5085693b6f960d4fc1550ea9b705da45f6309affa6d3d92b54ee23
        • MD5 SHA1 SHA512 SSDEEP

        memory/436-142-0x00007FF6E5340000-0x00007FF6E5694000-memory.dmp

        memory/436-113-0x00007FF6E5340000-0x00007FF6E5694000-memory.dmp

        memory/436-42-0x00007FF6E5340000-0x00007FF6E5694000-memory.dmp

        memory/748-147-0x00007FF74ADD0000-0x00007FF74B124000-memory.dmp

        memory/748-78-0x00007FF74ADD0000-0x00007FF74B124000-memory.dmp

        memory/1444-145-0x00007FF744010000-0x00007FF744364000-memory.dmp

        memory/1444-57-0x00007FF744010000-0x00007FF744364000-memory.dmp

        memory/1736-14-0x00007FF787530000-0x00007FF787884000-memory.dmp

        memory/1736-138-0x00007FF787530000-0x00007FF787884000-memory.dmp

        memory/1940-1-0x000001EFF3ED0000-0x000001EFF3EE0000-memory.dmp

        memory/1940-0-0x00007FF6CF620000-0x00007FF6CF974000-memory.dmp

        memory/1940-64-0x00007FF6CF620000-0x00007FF6CF974000-memory.dmp

        memory/2736-139-0x00007FF791AF0000-0x00007FF791E44000-memory.dmp

        memory/2736-21-0x00007FF791AF0000-0x00007FF791E44000-memory.dmp

        memory/2768-130-0x00007FF79F930000-0x00007FF79FC84000-memory.dmp

        memory/2768-84-0x00007FF79F930000-0x00007FF79FC84000-memory.dmp

        memory/2768-148-0x00007FF79F930000-0x00007FF79FC84000-memory.dmp

        memory/2776-65-0x00007FF680D20000-0x00007FF681074000-memory.dmp

        memory/2776-146-0x00007FF680D20000-0x00007FF681074000-memory.dmp

        memory/2796-157-0x00007FF6643F0000-0x00007FF664744000-memory.dmp

        memory/2796-129-0x00007FF6643F0000-0x00007FF664744000-memory.dmp

        memory/3016-140-0x00007FF737D60000-0x00007FF7380B4000-memory.dmp

        memory/3016-26-0x00007FF737D60000-0x00007FF7380B4000-memory.dmp

        memory/3376-150-0x00007FF74C940000-0x00007FF74CC94000-memory.dmp

        memory/3376-98-0x00007FF74C940000-0x00007FF74CC94000-memory.dmp

        memory/3376-134-0x00007FF74C940000-0x00007FF74CC94000-memory.dmp

        memory/3620-49-0x00007FF693D70000-0x00007FF6940C4000-memory.dmp

        memory/3620-143-0x00007FF693D70000-0x00007FF6940C4000-memory.dmp

        memory/3656-104-0x00007FF751030000-0x00007FF751384000-memory.dmp

        memory/3656-152-0x00007FF751030000-0x00007FF751384000-memory.dmp

        memory/3796-137-0x00007FF68F120000-0x00007FF68F474000-memory.dmp

        memory/3796-9-0x00007FF68F120000-0x00007FF68F474000-memory.dmp

        memory/3968-125-0x00007FF7ECF50000-0x00007FF7ED2A4000-memory.dmp

        memory/3968-156-0x00007FF7ECF50000-0x00007FF7ED2A4000-memory.dmp

        memory/4436-136-0x00007FF671740000-0x00007FF671A94000-memory.dmp

        memory/4436-155-0x00007FF671740000-0x00007FF671A94000-memory.dmp

        memory/4436-114-0x00007FF671740000-0x00007FF671A94000-memory.dmp

        memory/4516-36-0x00007FF6A9820000-0x00007FF6A9B74000-memory.dmp

        memory/4516-141-0x00007FF6A9820000-0x00007FF6A9B74000-memory.dmp

        memory/4628-153-0x00007FF7F24B0000-0x00007FF7F2804000-memory.dmp

        memory/4628-89-0x00007FF7F24B0000-0x00007FF7F2804000-memory.dmp

        memory/4628-131-0x00007FF7F24B0000-0x00007FF7F2804000-memory.dmp

        memory/4720-93-0x00007FF6D3290000-0x00007FF6D35E4000-memory.dmp

        memory/4720-133-0x00007FF6D3290000-0x00007FF6D35E4000-memory.dmp

        memory/4720-151-0x00007FF6D3290000-0x00007FF6D35E4000-memory.dmp

        memory/4784-112-0x00007FF7EFE60000-0x00007FF7F01B4000-memory.dmp

        memory/4784-154-0x00007FF7EFE60000-0x00007FF7F01B4000-memory.dmp

        memory/4784-135-0x00007FF7EFE60000-0x00007FF7F01B4000-memory.dmp

        memory/4852-149-0x00007FF7FDD80000-0x00007FF7FE0D4000-memory.dmp

        memory/4852-85-0x00007FF7FDD80000-0x00007FF7FE0D4000-memory.dmp

        memory/4852-132-0x00007FF7FDD80000-0x00007FF7FE0D4000-memory.dmp

        memory/5016-55-0x00007FF6D1CD0000-0x00007FF6D2024000-memory.dmp

        memory/5016-144-0x00007FF6D1CD0000-0x00007FF6D2024000-memory.dmp