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Analysis

  • max time kernel
    115s
  • max time network
    94s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240419-en
  • resource tags

    arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    02/05/2024, 19:46

General

  • Target

    4af3a202ab771b3f4187e6387e52e6db0eb812576f51d473b3c827de9ca5e651.exe

  • Size

    391KB

  • MD5

    4078120e75ba3b7a81add7ea4db2c43f

  • SHA1

    5230bf56e98be11e6847bb051211389e06fa9b31

  • SHA256

    4af3a202ab771b3f4187e6387e52e6db0eb812576f51d473b3c827de9ca5e651

  • SHA512

    abfb5295c56c3a926a1343efc29f4b212038f0daa60e51eeb056ce06e47a877d8160d07ee531f00feb42293590b4b8261a0f46ecf1d2be77d0a4a20e7d46eec8

  • SSDEEP

    6144:1H1x0T788vLmd/0SkQO2FLt7RwvW86Bw7L9Fcm8fJqJQD6l:V4f8MmkQFFbqJ6Krcm5Jtl

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.150

Attributes
  • url_path

    /c698e1bc8a2f5e6d.php

Signatures

  • Detect ZGRat V1 3 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4af3a202ab771b3f4187e6387e52e6db0eb812576f51d473b3c827de9ca5e651.exe
    "C:\Users\Admin\AppData\Local\Temp\4af3a202ab771b3f4187e6387e52e6db0eb812576f51d473b3c827de9ca5e651.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4020
    • C:\Users\Admin\AppData\Local\Temp\u33o.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u33o.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:3640
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3640 -s 2400
        3⤵
        • Program crash
        PID:3432
    • C:\Users\Admin\AppData\Local\Temp\u33o.3.exe
      "C:\Users\Admin\AppData\Local\Temp\u33o.3.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:948
      • C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
        "C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe" /eieci=11A12794-499E-4FA0-A281-A9A9AA8B2685 /eipi=5488CB36-BE62-4606-B07B-2EE938868BD1
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3068
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4020 -s 1164
      2⤵
      • Program crash
      PID:4980
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4020 -ip 4020
    1⤵
      PID:2604
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3640 -ip 3640
      1⤵
        PID:1236

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\Are.docx

        Filesize

        11KB

        MD5

        a33e5b189842c5867f46566bdbf7a095

        SHA1

        e1c06359f6a76da90d19e8fd95e79c832edb3196

        SHA256

        5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454

        SHA512

        f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b

      • C:\ProgramData\mozglue.dll

        Filesize

        593KB

        MD5

        c8fd9be83bc728cc04beffafc2907fe9

        SHA1

        95ab9f701e0024cedfbd312bcfe4e726744c4f2e

        SHA256

        ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

        SHA512

        fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

      • C:\ProgramData\nss3.dll

        Filesize

        2.0MB

        MD5

        1cc453cdf74f31e4d913ff9c10acdde2

        SHA1

        6e85eae544d6e965f15fa5c39700fa7202f3aafe

        SHA256

        ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

        SHA512

        dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

      • C:\Users\Admin\AppData\Local\Temp\u33o.0.exe

        Filesize

        291KB

        MD5

        f80a7e9968785f9b657a949eae7e8bb2

        SHA1

        af775ca86b451e0a5f4883d1bf5c0aaaa77369f9

        SHA256

        acd6d4768542f7b061ff1880c50e62b8cb208b0c550aa49fac31b6c590b35cc0

        SHA512

        141bf00783e91bf214acf2165d11a7d6a11cfcceb145d308fef8c3308c109688967ddc09e63bb7a49178129c35b85f0847ae4a50fa556e1781f3b2be9c8d5c8e

      • C:\Users\Admin\AppData\Local\Temp\u33o.1.zip

        Filesize

        1.6MB

        MD5

        1f354384ad03af689b769280ea8148f1

        SHA1

        ddffd4ea8faab64191436ace98b7f8f37d921b0a

        SHA256

        5e6afe3f5e499311a48e96f786d17a544eb4cea10a5af807dfb93532fad91a15

        SHA512

        b1ba8352dd21c129ba52707b3ec50249c3cdfd47d7a15bd85e1cec23fcbe8c16cb5f6a4a3ab7cce681fcc487161ba73658184c28f9937f60397cd8de5b749cc7

      • C:\Users\Admin\AppData\Local\Temp\u33o.3.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/948-217-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/948-206-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/3068-226-0x000001FED3050000-0x000001FED307A000-memory.dmp

        Filesize

        168KB

      • memory/3068-234-0x000001FED3260000-0x000001FED3560000-memory.dmp

        Filesize

        3.0MB

      • memory/3068-247-0x000001FED7D90000-0x000001FED7DAE000-memory.dmp

        Filesize

        120KB

      • memory/3068-246-0x000001FED7D60000-0x000001FED7D82000-memory.dmp

        Filesize

        136KB

      • memory/3068-244-0x000001FED7D10000-0x000001FED7D60000-memory.dmp

        Filesize

        320KB

      • memory/3068-245-0x000001FED7CC0000-0x000001FED7CCC000-memory.dmp

        Filesize

        48KB

      • memory/3068-241-0x000001FED8460000-0x000001FED8988000-memory.dmp

        Filesize

        5.2MB

      • memory/3068-239-0x000001FED7F20000-0x000001FED7F2A000-memory.dmp

        Filesize

        40KB

      • memory/3068-240-0x000001FED7CA0000-0x000001FED7CC2000-memory.dmp

        Filesize

        136KB

      • memory/3068-238-0x000001FED75E0000-0x000001FED75EE000-memory.dmp

        Filesize

        56KB

      • memory/3068-237-0x000001FED7610000-0x000001FED7648000-memory.dmp

        Filesize

        224KB

      • memory/3068-236-0x000001FED6F10000-0x000001FED6F18000-memory.dmp

        Filesize

        32KB

      • memory/3068-230-0x000001FEBA330000-0x000001FEBA33A000-memory.dmp

        Filesize

        40KB

      • memory/3068-229-0x000001FED31E0000-0x000001FED3256000-memory.dmp

        Filesize

        472KB

      • memory/3068-227-0x000001FED3080000-0x000001FED30FA000-memory.dmp

        Filesize

        488KB

      • memory/3068-218-0x000001FEB4C90000-0x000001FEB8588000-memory.dmp

        Filesize

        57.0MB

      • memory/3068-219-0x000001FED2CD0000-0x000001FED2DE0000-memory.dmp

        Filesize

        1.1MB

      • memory/3068-222-0x000001FEBA390000-0x000001FEBA3A4000-memory.dmp

        Filesize

        80KB

      • memory/3068-220-0x000001FEB8BF0000-0x000001FEB8C00000-memory.dmp

        Filesize

        64KB

      • memory/3068-221-0x000001FEBA3A0000-0x000001FEBA3AC000-memory.dmp

        Filesize

        48KB

      • memory/3068-223-0x000001FEBA3C0000-0x000001FEBA3E4000-memory.dmp

        Filesize

        144KB

      • memory/3068-224-0x000001FED2F80000-0x000001FED2F8A000-memory.dmp

        Filesize

        40KB

      • memory/3068-225-0x000001FED2FA0000-0x000001FED3052000-memory.dmp

        Filesize

        712KB

      • memory/3068-228-0x000001FED3100000-0x000001FED3162000-memory.dmp

        Filesize

        392KB

      • memory/3640-86-0x0000000000400000-0x0000000002B06000-memory.dmp

        Filesize

        39.0MB

      • memory/3640-87-0x0000000000400000-0x0000000002B06000-memory.dmp

        Filesize

        39.0MB

      • memory/3640-91-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/3640-189-0x0000000000400000-0x0000000002B06000-memory.dmp

        Filesize

        39.0MB

      • memory/3640-134-0x0000000000400000-0x0000000002B06000-memory.dmp

        Filesize

        39.0MB

      • memory/4020-90-0x0000000002FB0000-0x000000000301D000-memory.dmp

        Filesize

        436KB

      • memory/4020-2-0x0000000002FB0000-0x000000000301D000-memory.dmp

        Filesize

        436KB

      • memory/4020-186-0x0000000000400000-0x0000000002B1F000-memory.dmp

        Filesize

        39.1MB

      • memory/4020-187-0x0000000000400000-0x0000000000470000-memory.dmp

        Filesize

        448KB

      • memory/4020-1-0x0000000002CE0000-0x0000000002DE0000-memory.dmp

        Filesize

        1024KB

      • memory/4020-4-0x0000000000400000-0x0000000002B1F000-memory.dmp

        Filesize

        39.1MB

      • memory/4020-85-0x0000000000400000-0x0000000002B1F000-memory.dmp

        Filesize

        39.1MB

      • memory/4020-124-0x0000000000400000-0x0000000000470000-memory.dmp

        Filesize

        448KB

      • memory/4020-3-0x0000000000400000-0x0000000000470000-memory.dmp

        Filesize

        448KB

      • memory/4020-89-0x0000000002CE0000-0x0000000002DE0000-memory.dmp

        Filesize

        1024KB