Analysis

  • max time kernel
    133s
  • max time network
    134s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-05-2024 23:55

General

  • Target

    b1418bf6e6a65b88b7ab7eff05553f9cb656909db4c2ecba1ee79913a781702c.exe

  • Size

    450KB

  • MD5

    9c433f259204120dfbfb83fdf8b5d460

  • SHA1

    0d4d2165eac742011b25a189bba480fded7998f2

  • SHA256

    b1418bf6e6a65b88b7ab7eff05553f9cb656909db4c2ecba1ee79913a781702c

  • SHA512

    75b2af6987e706c93637b0f0641a9d06c587a555d7df2220a39743ae65a04d6443fa8b7046f67ca5ac26c87e27d22f5c1af72bb0b542ec1c22d509fa63e0ee47

  • SSDEEP

    12288:LG2lUG0NVvKXW/WqwO0YSTPZSeSnnKPkDc:LgVvoU9fsPUeSKPkDc

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
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 30 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\b1418bf6e6a65b88b7ab7eff05553f9cb656909db4c2ecba1ee79913a781702c.exe
    "C:\Users\Admin\AppData\Local\Temp\b1418bf6e6a65b88b7ab7eff05553f9cb656909db4c2ecba1ee79913a781702c.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2952
    • C:\Users\Admin\AppData\Local\Temp\u2a0.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u2a0.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:3596
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3596 -s 2196
        3⤵
        • Program crash
        PID:1652
    • C:\Users\Admin\AppData\Local\Temp\u2a0.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u2a0.1.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:840
      • 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:4040
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2952 -s 1204
      2⤵
      • Program crash
      PID:4392
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2952 -ip 2952
    1⤵
      PID:1892
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3596 -ip 3596
      1⤵
        PID:1848

      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

        5cf40995ca82779f0a94345280691619

        SHA1

        109198de6447687f20284df8bb456bf243ac2ffe

        SHA256

        70c2dadd277a2a4bb1843f260eb46e8c677475d1ed0c7532f7490a716b069113

        SHA512

        52440b714980ad1e5800675434a42db8fd4f4123c9ed356130bcf806c4a49fc9d7d64bd1ed0386d75ff270180d82f1cc40acb76226ec5002a4596abe6f3c24a9

      • C:\Users\Admin\AppData\Local\Temp\u2a0.0.exe

        Filesize

        308KB

        MD5

        2865748b737a8d92b3d6a0b687d4a40c

        SHA1

        4fa6930902858603416bbb917b3167419b1f756c

        SHA256

        d8c294f69770b62112bc6adb271b6d51ade6e718bd48f1656293b14b4eeaa212

        SHA512

        2746479fff564cffd819465b2e6aa079d9db7165794fe844893513c306120ca749877b268227a980bc9469666c96cfe9c54380780a7898b75b71602a32f4d33f

      • C:\Users\Admin\AppData\Local\Temp\u2a0.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/840-103-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/840-144-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/2952-73-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/2952-72-0x0000000003670000-0x00000000036DC000-memory.dmp

        Filesize

        432KB

      • memory/2952-71-0x0000000000400000-0x0000000001A3A000-memory.dmp

        Filesize

        22.2MB

      • memory/2952-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/2952-2-0x0000000003670000-0x00000000036DC000-memory.dmp

        Filesize

        432KB

      • memory/2952-1-0x0000000001A90000-0x0000000001B90000-memory.dmp

        Filesize

        1024KB

      • memory/3596-102-0x0000000000400000-0x0000000001A17000-memory.dmp

        Filesize

        22.1MB

      • memory/3596-147-0x0000000000400000-0x0000000001A17000-memory.dmp

        Filesize

        22.1MB

      • memory/3596-15-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/3596-14-0x0000000000400000-0x0000000001A17000-memory.dmp

        Filesize

        22.1MB

      • memory/3596-13-0x0000000000400000-0x0000000001A17000-memory.dmp

        Filesize

        22.1MB

      • memory/4040-149-0x0000027746BF0000-0x0000027746CFA000-memory.dmp

        Filesize

        1.0MB

      • memory/4040-159-0x000002772D0A0000-0x000002772D0AA000-memory.dmp

        Filesize

        40KB

      • memory/4040-151-0x000002772D0B0000-0x000002772D0BC000-memory.dmp

        Filesize

        48KB

      • memory/4040-150-0x000002772B800000-0x000002772B810000-memory.dmp

        Filesize

        64KB

      • memory/4040-152-0x000002772B9B0000-0x000002772B9C4000-memory.dmp

        Filesize

        80KB

      • memory/4040-153-0x00000277458F0000-0x0000027745914000-memory.dmp

        Filesize

        144KB

      • memory/4040-154-0x000002772D090000-0x000002772D09A000-memory.dmp

        Filesize

        40KB

      • memory/4040-155-0x0000027745930000-0x000002774595A000-memory.dmp

        Filesize

        168KB

      • memory/4040-156-0x00000277469F0000-0x0000027746AA2000-memory.dmp

        Filesize

        712KB

      • memory/4040-157-0x0000027746E90000-0x0000027746EE0000-memory.dmp

        Filesize

        320KB

      • memory/4040-158-0x0000027746E40000-0x0000027746E62000-memory.dmp

        Filesize

        136KB

      • memory/4040-145-0x0000027727BE0000-0x000002772B414000-memory.dmp

        Filesize

        56.2MB

      • memory/4040-163-0x0000027746EE0000-0x00000277471E0000-memory.dmp

        Filesize

        3.0MB

      • memory/4040-165-0x000002774AF20000-0x000002774AF28000-memory.dmp

        Filesize

        32KB

      • memory/4040-166-0x000002774B220000-0x000002774B258000-memory.dmp

        Filesize

        224KB

      • memory/4040-167-0x000002774B1F0000-0x000002774B1FE000-memory.dmp

        Filesize

        56KB

      • memory/4040-168-0x000002774B210000-0x000002774B218000-memory.dmp

        Filesize

        32KB

      • memory/4040-169-0x000002774C380000-0x000002774C38A000-memory.dmp

        Filesize

        40KB

      • memory/4040-170-0x000002774C3A0000-0x000002774C402000-memory.dmp

        Filesize

        392KB

      • memory/4040-171-0x000002774C400000-0x000002774C422000-memory.dmp

        Filesize

        136KB

      • memory/4040-172-0x000002774C950000-0x000002774CE78000-memory.dmp

        Filesize

        5.2MB

      • memory/4040-175-0x000002774C100000-0x000002774C10C000-memory.dmp

        Filesize

        48KB

      • memory/4040-176-0x000002774C1E0000-0x000002774C256000-memory.dmp

        Filesize

        472KB

      • memory/4040-177-0x000002774C140000-0x000002774C15E000-memory.dmp

        Filesize

        120KB