Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240419-en
  • resource tags

    arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    06-05-2024 23:49

General

  • Target

    486d3c5b6cce21fb19837251c91900cb0ac59563db548691ac602b224ff78bc2.exe

  • Size

    450KB

  • MD5

    f243e8d5f030c47e25839f45b8506ec8

  • SHA1

    08c4e046dc5b90ae77b665af6b25783dd9b384c1

  • SHA256

    486d3c5b6cce21fb19837251c91900cb0ac59563db548691ac602b224ff78bc2

  • SHA512

    06561ecd63aafb798d3173d2444fd4a52d67d68e891dd537cd0025fe70910d1955c2b83cda1b664a7df872810e159daf164f07b4a9fe0b4af0c18b32435c2f24

  • SSDEEP

    12288:LG2lUG0NVvKXW/WqwO0YSTPZSeSnnKPkDf:LgVvoU9fsPUeSKPkDf

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\486d3c5b6cce21fb19837251c91900cb0ac59563db548691ac602b224ff78bc2.exe
    "C:\Users\Admin\AppData\Local\Temp\486d3c5b6cce21fb19837251c91900cb0ac59563db548691ac602b224ff78bc2.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3952
    • C:\Users\Admin\AppData\Local\Temp\u31s.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u31s.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:4408
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4408 -s 2488
        3⤵
        • Program crash
        PID:4088
    • C:\Users\Admin\AppData\Local\Temp\u31s.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u31s.1.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:1936
      • 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:2640
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3952 -s 1180
      2⤵
      • Program crash
      PID:556
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3952 -ip 3952
    1⤵
      PID:1168
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4408 -ip 4408
      1⤵
        PID:2084

      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\iolo\dm\ioloDMLog.txt

        Filesize

        3KB

        MD5

        07ce9ba0bcf81d99535fde44932e97ee

        SHA1

        bbf1f8faa65a9ee08cad191682b6290f953d52ab

        SHA256

        beffdfc3a856247645832eb0cb7c7f3547f672a88a72eafab2a5b910f911af29

        SHA512

        86837271f14be5a7af0b00b222f6ecc7715c378311121b10ef9927f94a35f2a65ff0661960dff5ae63e2f6707b4848e97444f632e53d8ba8fda084ac8f313912

      • C:\Users\Admin\AppData\Local\Temp\u31s.0.exe

        Filesize

        308KB

        MD5

        2865748b737a8d92b3d6a0b687d4a40c

        SHA1

        4fa6930902858603416bbb917b3167419b1f756c

        SHA256

        d8c294f69770b62112bc6adb271b6d51ade6e718bd48f1656293b14b4eeaa212

        SHA512

        2746479fff564cffd819465b2e6aa079d9db7165794fe844893513c306120ca749877b268227a980bc9469666c96cfe9c54380780a7898b75b71602a32f4d33f

      • C:\Users\Admin\AppData\Local\Temp\u31s.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/1936-147-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/1936-135-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/2640-151-0x000001F2B1480000-0x000001F2B148C000-memory.dmp

        Filesize

        48KB

      • memory/2640-168-0x000001F2B5CE0000-0x000001F2B5CE8000-memory.dmp

        Filesize

        32KB

      • memory/2640-177-0x000001F2B6450000-0x000001F2B646E000-memory.dmp

        Filesize

        120KB

      • memory/2640-176-0x000001F2B64F0000-0x000001F2B6566000-memory.dmp

        Filesize

        472KB

      • memory/2640-175-0x000001F2B6410000-0x000001F2B641C000-memory.dmp

        Filesize

        48KB

      • memory/2640-172-0x000001F2B6C10000-0x000001F2B7138000-memory.dmp

        Filesize

        5.2MB

      • memory/2640-171-0x000001F2B63F0000-0x000001F2B6412000-memory.dmp

        Filesize

        136KB

      • memory/2640-170-0x000001F2B6680000-0x000001F2B66E2000-memory.dmp

        Filesize

        392KB

      • memory/2640-169-0x000001F2B5D60000-0x000001F2B5D6A000-memory.dmp

        Filesize

        40KB

      • memory/2640-167-0x000001F2B5CC0000-0x000001F2B5CCE000-memory.dmp

        Filesize

        56KB

      • memory/2640-148-0x000001F293560000-0x000001F296D94000-memory.dmp

        Filesize

        56.2MB

      • memory/2640-149-0x000001F2B1580000-0x000001F2B168A000-memory.dmp

        Filesize

        1.0MB

      • memory/2640-166-0x000001F2B5CF0000-0x000001F2B5D28000-memory.dmp

        Filesize

        224KB

      • memory/2640-150-0x000001F2B1420000-0x000001F2B1430000-memory.dmp

        Filesize

        64KB

      • memory/2640-152-0x000001F2B1430000-0x000001F2B1444000-memory.dmp

        Filesize

        80KB

      • memory/2640-153-0x000001F2B1500000-0x000001F2B1524000-memory.dmp

        Filesize

        144KB

      • memory/2640-154-0x000001F2B1520000-0x000001F2B152A000-memory.dmp

        Filesize

        40KB

      • memory/2640-155-0x000001F2B17E0000-0x000001F2B180A000-memory.dmp

        Filesize

        168KB

      • memory/2640-156-0x000001F2B1810000-0x000001F2B18C2000-memory.dmp

        Filesize

        712KB

      • memory/2640-157-0x000001F2B1910000-0x000001F2B1960000-memory.dmp

        Filesize

        320KB

      • memory/2640-158-0x000001F2B18C0000-0x000001F2B18E2000-memory.dmp

        Filesize

        136KB

      • memory/2640-159-0x000001F297280000-0x000001F29728A000-memory.dmp

        Filesize

        40KB

      • memory/2640-163-0x000001F2B1960000-0x000001F2B1C60000-memory.dmp

        Filesize

        3.0MB

      • memory/2640-165-0x000001F2B63B0000-0x000001F2B63B8000-memory.dmp

        Filesize

        32KB

      • memory/3952-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/3952-57-0x0000000000400000-0x0000000001A3A000-memory.dmp

        Filesize

        22.2MB

      • memory/3952-2-0x0000000003750000-0x00000000037BC000-memory.dmp

        Filesize

        432KB

      • memory/3952-1-0x0000000001AF0000-0x0000000001BF0000-memory.dmp

        Filesize

        1024KB

      • memory/3952-92-0x0000000000400000-0x0000000001A3A000-memory.dmp

        Filesize

        22.2MB

      • memory/3952-100-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/4408-13-0x0000000000400000-0x0000000001A17000-memory.dmp

        Filesize

        22.1MB

      • memory/4408-118-0x0000000000400000-0x0000000001A17000-memory.dmp

        Filesize

        22.1MB

      • memory/4408-14-0x0000000000400000-0x0000000001A17000-memory.dmp

        Filesize

        22.1MB

      • memory/4408-15-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB