Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-05-2024 22:01

General

  • Target

    3f6a75bb0e76eb209aaa69f2049fb34addf1559881f0168c1aabf7bc8f5a520a.exe

  • Size

    388KB

  • MD5

    a79e9a3ba1edb7ffbf8cf963e33a4162

  • SHA1

    d85a328dbdcfb9bbd07a1829ac2073f823ae9b79

  • SHA256

    3f6a75bb0e76eb209aaa69f2049fb34addf1559881f0168c1aabf7bc8f5a520a

  • SHA512

    549e043e7c0f9d3a5f07a182a11a86ed4531d6dbb4e9a8d605cf6cc56c0ba8e66a4223e4662178c1dee56eb4d7353dd76e78e532b667522468bc421c90a43a2b

  • SSDEEP

    12288:aG1ixU5HEhboNYNJHxqi4vdf4qLfxmGL/:aGMnhbvrHwi4vdAqL0GL/

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 26 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\3f6a75bb0e76eb209aaa69f2049fb34addf1559881f0168c1aabf7bc8f5a520a.exe
    "C:\Users\Admin\AppData\Local\Temp\3f6a75bb0e76eb209aaa69f2049fb34addf1559881f0168c1aabf7bc8f5a520a.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1692
    • C:\Users\Admin\AppData\Local\Temp\u1b0.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u1b0.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:2872
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2872 -s 2020
        3⤵
        • Program crash
        PID:4576
    • C:\Users\Admin\AppData\Local\Temp\u1b0.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u1b0.1.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:4532
      • 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:4624
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1692 -s 1152
      2⤵
      • Program crash
      PID:2432
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1692 -ip 1692
    1⤵
      PID:1500
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 2872 -ip 2872
      1⤵
        PID:3832

      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\u1b0.0.exe

        Filesize

        245KB

        MD5

        5ea66fe490011da271a673577bad5bde

        SHA1

        04191be80d32e89c876840af14ad9352a0c1eff2

        SHA256

        a8b093f291c9d435b8c9f832e7817a854e04290da381672de6234b031b2cf3a0

        SHA512

        6ae839e1e59cc1ab2abd4c8dec88cef0d1e89110614d443d6e64b99faa2dba8b1d4b9a00824cfe91f94c29e32413a7ff3448249aee342349868a0dab9bd3db97

      • C:\Users\Admin\AppData\Local\Temp\u1b0.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/1692-2-0x0000000002700000-0x000000000276C000-memory.dmp

        Filesize

        432KB

      • memory/1692-1-0x0000000002910000-0x0000000002A10000-memory.dmp

        Filesize

        1024KB

      • memory/1692-4-0x0000000000400000-0x000000000259D000-memory.dmp

        Filesize

        33.6MB

      • memory/1692-29-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/1692-28-0x0000000000400000-0x000000000259D000-memory.dmp

        Filesize

        33.6MB

      • memory/1692-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/2872-34-0x0000000000400000-0x0000000002579000-memory.dmp

        Filesize

        33.5MB

      • memory/2872-170-0x0000000000400000-0x0000000002579000-memory.dmp

        Filesize

        33.5MB

      • memory/2872-158-0x0000000000400000-0x0000000002579000-memory.dmp

        Filesize

        33.5MB

      • memory/2872-86-0x0000000000400000-0x0000000002579000-memory.dmp

        Filesize

        33.5MB

      • memory/2872-50-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/4532-105-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4532-94-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4624-113-0x00000188AE070000-0x00000188AE09A000-memory.dmp

        Filesize

        168KB

      • memory/4624-144-0x00000188B2560000-0x00000188B256E000-memory.dmp

        Filesize

        56KB

      • memory/4624-111-0x00000188ADDA0000-0x00000188ADDC4000-memory.dmp

        Filesize

        144KB

      • memory/4624-114-0x00000188AE0B0000-0x00000188AE162000-memory.dmp

        Filesize

        712KB

      • memory/4624-115-0x00000188AE1B0000-0x00000188AE200000-memory.dmp

        Filesize

        320KB

      • memory/4624-116-0x00000188AE200000-0x00000188AE222000-memory.dmp

        Filesize

        136KB

      • memory/4624-120-0x00000188AE060000-0x00000188AE06A000-memory.dmp

        Filesize

        40KB

      • memory/4624-124-0x00000188AE230000-0x00000188AE530000-memory.dmp

        Filesize

        3.0MB

      • memory/4624-129-0x00000188B2C50000-0x00000188B2C58000-memory.dmp

        Filesize

        32KB

      • memory/4624-110-0x00000188ADA70000-0x00000188ADA84000-memory.dmp

        Filesize

        80KB

      • memory/4624-108-0x0000018894350000-0x0000018894360000-memory.dmp

        Filesize

        64KB

      • memory/4624-112-0x00000188AE050000-0x00000188AE05A000-memory.dmp

        Filesize

        40KB

      • memory/4624-143-0x00000188B2590000-0x00000188B25C8000-memory.dmp

        Filesize

        224KB

      • memory/4624-146-0x00000188B2580000-0x00000188B2588000-memory.dmp

        Filesize

        32KB

      • memory/4624-148-0x00000188B3720000-0x00000188B3782000-memory.dmp

        Filesize

        392KB

      • memory/4624-147-0x00000188B3470000-0x00000188B347A000-memory.dmp

        Filesize

        40KB

      • memory/4624-149-0x00000188B34A0000-0x00000188B34C2000-memory.dmp

        Filesize

        136KB

      • memory/4624-153-0x00000188B3CB0000-0x00000188B41D8000-memory.dmp

        Filesize

        5.2MB

      • memory/4624-156-0x00000188B3480000-0x00000188B348C000-memory.dmp

        Filesize

        48KB

      • memory/4624-157-0x00000188B3590000-0x00000188B3606000-memory.dmp

        Filesize

        472KB

      • memory/4624-109-0x00000188ADA80000-0x00000188ADA8C000-memory.dmp

        Filesize

        48KB

      • memory/4624-159-0x00000188AE550000-0x00000188AE56E000-memory.dmp

        Filesize

        120KB

      • memory/4624-107-0x00000188ADC90000-0x00000188ADD9A000-memory.dmp

        Filesize

        1.0MB

      • memory/4624-106-0x000001888EF60000-0x0000018892794000-memory.dmp

        Filesize

        56.2MB