Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/06/2024, 00:05

General

  • Target
    2024-05-31_b5f28fc41f0f7c5d7d717b4812375447_cobalt-strike_cobaltstrike.exe
  • Size 5.9MB
  • Sample240601-ada1zsbc47
  • SHA256 f477bc330e6eef864b116f37b57c66113eb1fd8ccadc031b9d1e66359ab56051
  • 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_b5f28fc41f0f7c5d7d717b4812375447_cobalt-strike_cobaltstrike.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-31_b5f28fc41f0f7c5d7d717b4812375447_cobalt-strike_cobaltstrike.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3180
    • C:\Windows\System\WuRvxlO.exe
      C:\Windows\System\WuRvxlO.exe
      2⤵
      • Executes dropped EXE
      PID:4988
    • C:\Windows\System\eUvynKD.exe
      C:\Windows\System\eUvynKD.exe
      2⤵
      • Executes dropped EXE
      PID:5044
    • C:\Windows\System\YuljGBr.exe
      C:\Windows\System\YuljGBr.exe
      2⤵
      • Executes dropped EXE
      PID:64
    • C:\Windows\System\ZBrlEcz.exe
      C:\Windows\System\ZBrlEcz.exe
      2⤵
      • Executes dropped EXE
      PID:1676
    • C:\Windows\System\arXLxKw.exe
      C:\Windows\System\arXLxKw.exe
      2⤵
      • Executes dropped EXE
      PID:3312
    • C:\Windows\System\tPhhxmt.exe
      C:\Windows\System\tPhhxmt.exe
      2⤵
      • Executes dropped EXE
      PID:2020
    • C:\Windows\System\jERLLNQ.exe
      C:\Windows\System\jERLLNQ.exe
      2⤵
      • Executes dropped EXE
      PID:1984
    • C:\Windows\System\wTOlfFK.exe
      C:\Windows\System\wTOlfFK.exe
      2⤵
      • Executes dropped EXE
      PID:3736
    • C:\Windows\System\PCmTpth.exe
      C:\Windows\System\PCmTpth.exe
      2⤵
      • Executes dropped EXE
      PID:3720
    • C:\Windows\System\acFHjxK.exe
      C:\Windows\System\acFHjxK.exe
      2⤵
      • Executes dropped EXE
      PID:3116
    • C:\Windows\System\OKIgRXU.exe
      C:\Windows\System\OKIgRXU.exe
      2⤵
      • Executes dropped EXE
      PID:2628
    • C:\Windows\System\uoAgwUf.exe
      C:\Windows\System\uoAgwUf.exe
      2⤵
      • Executes dropped EXE
      PID:1164
    • C:\Windows\System\drEmFLp.exe
      C:\Windows\System\drEmFLp.exe
      2⤵
      • Executes dropped EXE
      PID:1824
    • C:\Windows\System\qvgncwR.exe
      C:\Windows\System\qvgncwR.exe
      2⤵
      • Executes dropped EXE
      PID:4472
    • C:\Windows\System\wyoWWrZ.exe
      C:\Windows\System\wyoWWrZ.exe
      2⤵
      • Executes dropped EXE
      PID:5096
    • C:\Windows\System\JLwnVhq.exe
      C:\Windows\System\JLwnVhq.exe
      2⤵
      • Executes dropped EXE
      PID:552
    • C:\Windows\System\dVXPuqF.exe
      C:\Windows\System\dVXPuqF.exe
      2⤵
      • Executes dropped EXE
      PID:524
    • C:\Windows\System\MagQTxU.exe
      C:\Windows\System\MagQTxU.exe
      2⤵
      • Executes dropped EXE
      PID:1692
    • C:\Windows\System\EzHLHoZ.exe
      C:\Windows\System\EzHLHoZ.exe
      2⤵
      • Executes dropped EXE
      PID:4960
    • C:\Windows\System\vgKYOOU.exe
      C:\Windows\System\vgKYOOU.exe
      2⤵
      • Executes dropped EXE
      PID:3408
    • C:\Windows\System\VKwooDM.exe
      C:\Windows\System\VKwooDM.exe
      2⤵
      • Executes dropped EXE
      PID:4404

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        EzHLHoZ.exe

        • Path C:\Windows\System\EzHLHoZ.exe
        • Size 5.9MB
        • SHA256 d0dadc3007d7ccb03d4940ea095376860db1400c2ed477fb66194b833d874322
        • MD5 SHA1 SHA512 SSDEEP

        JLwnVhq.exe

        • Path C:\Windows\System\JLwnVhq.exe
        • Size 5.9MB
        • SHA256 dbd4b7cf780ae5a588093980d15a4fdd8ed9b73bea211e599fdfe11aebcaf6fd
        • MD5 SHA1 SHA512 SSDEEP

        MagQTxU.exe

        • Path C:\Windows\System\MagQTxU.exe
        • Size 5.9MB
        • SHA256 d866abd77ddbb5b8a9ec0439cde8173ff151c700f0fe774ee362ddb88c01aa9d
        • MD5 SHA1 SHA512 SSDEEP

        OKIgRXU.exe

        • Path C:\Windows\System\OKIgRXU.exe
        • Size 5.9MB
        • SHA256 16088271900502fa5a823e00f07fff4e6bcbf4f55a610ff51a9db349ccf562f5
        • MD5 SHA1 SHA512 SSDEEP

        PCmTpth.exe

        • Path C:\Windows\System\PCmTpth.exe
        • Size 5.9MB
        • SHA256 a3a650b446717012bc2ee4922b8cdf37fd92ebbf467a64ef91b675a13dd5a96c
        • MD5 SHA1 SHA512 SSDEEP

        VKwooDM.exe

        • Path C:\Windows\System\VKwooDM.exe
        • Size 5.9MB
        • SHA256 3b076cdc5933aa45649429e91765106e127781d2073089d9e7ce15d5afc54be7
        • MD5 SHA1 SHA512 SSDEEP

        WuRvxlO.exe

        • Path C:\Windows\System\WuRvxlO.exe
        • Size 5.9MB
        • SHA256 ead94631d56adcfa68f08c53d16524e08968ca1ad252c51c8a05cc8e49249f0a
        • MD5 SHA1 SHA512 SSDEEP

        YuljGBr.exe

        • Path C:\Windows\System\YuljGBr.exe
        • Size 5.9MB
        • SHA256 e7e7bbc91e721d09bbad260308af3d38baea763093c6f696eaef9844961a8161
        • MD5 SHA1 SHA512 SSDEEP

        ZBrlEcz.exe

        • Path C:\Windows\System\ZBrlEcz.exe
        • Size 5.9MB
        • SHA256 2efcf58c044250a8b755bd2f230a5e58cf0dd1bbd1c9f0cd3548630608a433e7
        • MD5 SHA1 SHA512 SSDEEP

        acFHjxK.exe

        • Path C:\Windows\System\acFHjxK.exe
        • Size 5.9MB
        • SHA256 d6fa201b776be7c57ed901f437a2fc37570c77275dea4bc08d3ba58646b6fb32
        • MD5 SHA1 SHA512 SSDEEP

        arXLxKw.exe

        • Path C:\Windows\System\arXLxKw.exe
        • Size 5.9MB
        • SHA256 d7f68cc2d4cbfd42fa37bf656c4eaa4de231fca904cb6d40716b8a2fad2187a5
        • MD5 SHA1 SHA512 SSDEEP

        dVXPuqF.exe

        • Path C:\Windows\System\dVXPuqF.exe
        • Size 5.9MB
        • SHA256 73ecc9d9d4f63e8ca53c8a56f82476c70c4b4ef5f725ed35c9a310a310fa76fb
        • MD5 SHA1 SHA512 SSDEEP

        drEmFLp.exe

        • Path C:\Windows\System\drEmFLp.exe
        • Size 5.9MB
        • SHA256 3a633a005115c3a88a566d44621a296e49aadc8a9c68f89f786be811437b3032
        • MD5 SHA1 SHA512 SSDEEP

        eUvynKD.exe

        • Path C:\Windows\System\eUvynKD.exe
        • Size 5.9MB
        • SHA256 be6b5d27613234451241b8890f910108e1034cd529810355f2492cb10d5fc8d6
        • MD5 SHA1 SHA512 SSDEEP

        jERLLNQ.exe

        • Path C:\Windows\System\jERLLNQ.exe
        • Size 5.9MB
        • SHA256 8dfcef8055dc935f25f9cffca3b6557ecb4f6d222518be3af5134a152132eb00
        • MD5 SHA1 SHA512 SSDEEP

        qvgncwR.exe

        • Path C:\Windows\System\qvgncwR.exe
        • Size 5.9MB
        • SHA256 fc7e95872e6a01445520d37663f2551af30dd507535efa793ac7bdc4b55c5712
        • MD5 SHA1 SHA512 SSDEEP

        tPhhxmt.exe

        • Path C:\Windows\System\tPhhxmt.exe
        • Size 5.9MB
        • SHA256 6231dc0a863eb8b209b81772c4c836c5f565b1be741364e81e3be8ab59d4b6b9
        • MD5 SHA1 SHA512 SSDEEP

        uoAgwUf.exe

        • Path C:\Windows\System\uoAgwUf.exe
        • Size 5.9MB
        • SHA256 b3bcb49a6475d392791460345840b1eacaa417c9e5b34fecb5158386923e8496
        • MD5 SHA1 SHA512 SSDEEP

        vgKYOOU.exe

        • Path C:\Windows\System\vgKYOOU.exe
        • Size 5.9MB
        • SHA256 789b908143956493f9d9445340548132aacfe35cd38c97f91d2baa5e8914b1a7
        • MD5 SHA1 SHA512 SSDEEP

        wTOlfFK.exe

        • Path C:\Windows\System\wTOlfFK.exe
        • Size 5.9MB
        • SHA256 cf8b2712ac64cda7e7d9d56664008ce013090eebab421ca9adc914987fa7f4d3
        • MD5 SHA1 SHA512 SSDEEP

        wyoWWrZ.exe

        • Path C:\Windows\System\wyoWWrZ.exe
        • Size 5.9MB
        • SHA256 61e8092c95217f80629cf84cfd08a5c1ef089dcc3a727336bd9709dd58a2c8df
        • MD5 SHA1 SHA512 SSDEEP

        memory/64-21-0x00007FF74F670000-0x00007FF74F9C4000-memory.dmp

        memory/64-133-0x00007FF74F670000-0x00007FF74F9C4000-memory.dmp

        memory/524-124-0x00007FF6AD030000-0x00007FF6AD384000-memory.dmp

        memory/524-150-0x00007FF6AD030000-0x00007FF6AD384000-memory.dmp

        memory/552-123-0x00007FF735020000-0x00007FF735374000-memory.dmp

        memory/552-146-0x00007FF735020000-0x00007FF735374000-memory.dmp

        memory/1164-140-0x00007FF6A62D0000-0x00007FF6A6624000-memory.dmp

        memory/1164-77-0x00007FF6A62D0000-0x00007FF6A6624000-memory.dmp

        memory/1676-27-0x00007FF61AA00000-0x00007FF61AD54000-memory.dmp

        memory/1676-134-0x00007FF61AA00000-0x00007FF61AD54000-memory.dmp

        memory/1692-149-0x00007FF7165A0000-0x00007FF7168F4000-memory.dmp

        memory/1692-125-0x00007FF7165A0000-0x00007FF7168F4000-memory.dmp

        memory/1824-100-0x00007FF735EF0000-0x00007FF736244000-memory.dmp

        memory/1824-143-0x00007FF735EF0000-0x00007FF736244000-memory.dmp

        memory/1984-138-0x00007FF790BD0000-0x00007FF790F24000-memory.dmp

        memory/1984-68-0x00007FF790BD0000-0x00007FF790F24000-memory.dmp

        memory/2020-136-0x00007FF6F4020000-0x00007FF6F4374000-memory.dmp

        memory/2020-83-0x00007FF6F4020000-0x00007FF6F4374000-memory.dmp

        memory/2628-141-0x00007FF744C10000-0x00007FF744F64000-memory.dmp

        memory/2628-91-0x00007FF744C10000-0x00007FF744F64000-memory.dmp

        memory/3116-71-0x00007FF7C90D0000-0x00007FF7C9424000-memory.dmp

        memory/3116-142-0x00007FF7C90D0000-0x00007FF7C9424000-memory.dmp

        memory/3180-128-0x00007FF6C3710000-0x00007FF6C3A64000-memory.dmp

        memory/3180-1-0x000001E4DB380000-0x000001E4DB390000-memory.dmp

        memory/3180-0-0x00007FF6C3710000-0x00007FF6C3A64000-memory.dmp

        memory/3312-38-0x00007FF731820000-0x00007FF731B74000-memory.dmp

        memory/3312-135-0x00007FF731820000-0x00007FF731B74000-memory.dmp

        memory/3408-151-0x00007FF7B5C10000-0x00007FF7B5F64000-memory.dmp

        memory/3408-126-0x00007FF7B5C10000-0x00007FF7B5F64000-memory.dmp

        memory/3720-70-0x00007FF7D26D0000-0x00007FF7D2A24000-memory.dmp

        memory/3720-139-0x00007FF7D26D0000-0x00007FF7D2A24000-memory.dmp

        memory/3736-61-0x00007FF7C3360000-0x00007FF7C36B4000-memory.dmp

        memory/3736-137-0x00007FF7C3360000-0x00007FF7C36B4000-memory.dmp

        memory/4404-127-0x00007FF6855D0000-0x00007FF685924000-memory.dmp

        memory/4404-147-0x00007FF6855D0000-0x00007FF685924000-memory.dmp

        memory/4472-118-0x00007FF7CD7B0000-0x00007FF7CDB04000-memory.dmp

        memory/4472-144-0x00007FF7CD7B0000-0x00007FF7CDB04000-memory.dmp

        memory/4960-148-0x00007FF702FF0000-0x00007FF703344000-memory.dmp

        memory/4960-115-0x00007FF702FF0000-0x00007FF703344000-memory.dmp

        memory/4960-130-0x00007FF702FF0000-0x00007FF703344000-memory.dmp

        memory/4988-131-0x00007FF619C40000-0x00007FF619F94000-memory.dmp

        memory/4988-129-0x00007FF619C40000-0x00007FF619F94000-memory.dmp

        memory/4988-8-0x00007FF619C40000-0x00007FF619F94000-memory.dmp

        memory/5044-132-0x00007FF775B40000-0x00007FF775E94000-memory.dmp

        memory/5044-14-0x00007FF775B40000-0x00007FF775E94000-memory.dmp

        memory/5096-145-0x00007FF7452D0000-0x00007FF745624000-memory.dmp

        memory/5096-106-0x00007FF7452D0000-0x00007FF745624000-memory.dmp