Analysis

  • max time kernel
    134s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-05-2024 07:31

General

  • Target

    9bb555dbbdb0360f5941211f74a46ebfbec21caa3d564dc174d02a9706bcd661.exe

  • Size

    387KB

  • MD5

    ac78d0e4c63e953e56cd60d2ef84dc6c

  • SHA1

    2c78f075eae22a904f0f55aa3cdd3b54bf0eff44

  • SHA256

    9bb555dbbdb0360f5941211f74a46ebfbec21caa3d564dc174d02a9706bcd661

  • SHA512

    6c352f0dbc25931d9bbe0a555f8576f062fbeca1275b767be08ecf6b234f8cb4896204d16bc416ad48a967ccb36624e4fd1959e31a1298b4b44f1ee87ac6556d

  • SSDEEP

    6144:mcLRRKWEpSMnqkuAExWH/Tc8tmfs9ooBXrtjqaIFwTDio:mcLRRB+Se1JExWfLmfsCG7HIWOo

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 28 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\9bb555dbbdb0360f5941211f74a46ebfbec21caa3d564dc174d02a9706bcd661.exe
    "C:\Users\Admin\AppData\Local\Temp\9bb555dbbdb0360f5941211f74a46ebfbec21caa3d564dc174d02a9706bcd661.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1524
    • C:\Users\Admin\AppData\Local\Temp\u16c.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u16c.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:4388
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4388 -s 2340
        3⤵
        • Program crash
        PID:3772
    • C:\Users\Admin\AppData\Local\Temp\u16c.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u16c.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:3760
      • 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:2128
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1524 -s 1152
      2⤵
      • Program crash
      PID:4292
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1524 -ip 1524
    1⤵
      PID:4108
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 4388 -ip 4388
      1⤵
        PID:4768

      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

        05424127315dc22efd63f32bb1bde5dd

        SHA1

        df49cd51364043918b58f8bd0e869325662b0aae

        SHA256

        0c71aad9a93bd65324bae44d891f9d88c93af973e49be92d3aefcb65dd5cb195

        SHA512

        28d91f3a763bc4e9a34df611568ccf9501031b074ea9536a29d80e397858fd7ad73bc3d36eee030b8748afbb8c1008e78cb138e087389e39e7f35d3359592cdb

      • C:\Users\Admin\AppData\Local\Temp\u16c.0.exe

        Filesize

        245KB

        MD5

        33bc221961c8365ec06fe86a4ab76709

        SHA1

        af930ef0dbd96b4fb0c6ecd72ea5fe2fd77268f8

        SHA256

        2874b873e12bcdfcf0a37708512e21637e38e5f5b9a2bf0c3b34f72d74c05708

        SHA512

        957e92d7418dca60a34cdc8dd542a587003b8181be6eb19272a5e4065aa61fa43655f6cbaebc31ce4a778fcc0e4430993a6f35db73cc7b0d7140042ba835082e

      • C:\Users\Admin\AppData\Local\Temp\u16c.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/1524-2-0x0000000004200000-0x000000000426C000-memory.dmp

        Filesize

        432KB

      • memory/1524-1-0x0000000002860000-0x0000000002960000-memory.dmp

        Filesize

        1024KB

      • memory/1524-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/1524-64-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/1524-63-0x0000000000400000-0x000000000259D000-memory.dmp

        Filesize

        33.6MB

      • memory/2128-142-0x000001F52D110000-0x000001F52D120000-memory.dmp

        Filesize

        64KB

      • memory/2128-148-0x000001F545CD0000-0x000001F545D82000-memory.dmp

        Filesize

        712KB

      • memory/2128-169-0x000001F54B3D0000-0x000001F54B3EE000-memory.dmp

        Filesize

        120KB

      • memory/2128-168-0x000001F54B470000-0x000001F54B4E6000-memory.dmp

        Filesize

        472KB

      • memory/2128-167-0x000001F54B390000-0x000001F54B39C000-memory.dmp

        Filesize

        48KB

      • memory/2128-164-0x000001F54BBA0000-0x000001F54C0C8000-memory.dmp

        Filesize

        5.2MB

      • memory/2128-163-0x000001F54B370000-0x000001F54B392000-memory.dmp

        Filesize

        136KB

      • memory/2128-140-0x000001F527CB0000-0x000001F52B4E4000-memory.dmp

        Filesize

        56.2MB

      • memory/2128-141-0x000001F545E90000-0x000001F545F9A000-memory.dmp

        Filesize

        1.0MB

      • memory/2128-161-0x000001F54B5F0000-0x000001F54B5FA000-memory.dmp

        Filesize

        40KB

      • memory/2128-143-0x000001F52D190000-0x000001F52D19C000-memory.dmp

        Filesize

        48KB

      • memory/2128-144-0x000001F52D180000-0x000001F52D194000-memory.dmp

        Filesize

        80KB

      • memory/2128-145-0x000001F52D1A0000-0x000001F52D1C4000-memory.dmp

        Filesize

        144KB

      • memory/2128-146-0x000001F545AD0000-0x000001F545ADA000-memory.dmp

        Filesize

        40KB

      • memory/2128-147-0x000001F545C30000-0x000001F545C5A000-memory.dmp

        Filesize

        168KB

      • memory/2128-162-0x000001F54B610000-0x000001F54B672000-memory.dmp

        Filesize

        392KB

      • memory/2128-149-0x000001F5460E0000-0x000001F546130000-memory.dmp

        Filesize

        320KB

      • memory/2128-150-0x000001F545C90000-0x000001F545CB2000-memory.dmp

        Filesize

        136KB

      • memory/2128-151-0x000001F545AE0000-0x000001F545AEA000-memory.dmp

        Filesize

        40KB

      • memory/2128-155-0x000001F546130000-0x000001F546430000-memory.dmp

        Filesize

        3.0MB

      • memory/2128-157-0x000001F54AB40000-0x000001F54AB48000-memory.dmp

        Filesize

        32KB

      • memory/2128-158-0x000001F54A480000-0x000001F54A4B8000-memory.dmp

        Filesize

        224KB

      • memory/2128-159-0x000001F54A450000-0x000001F54A45E000-memory.dmp

        Filesize

        56KB

      • memory/2128-160-0x000001F54A470000-0x000001F54A478000-memory.dmp

        Filesize

        32KB

      • memory/3760-139-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/3760-127-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4388-30-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/4388-13-0x0000000000400000-0x0000000002579000-memory.dmp

        Filesize

        33.5MB

      • memory/4388-14-0x0000000000400000-0x0000000002579000-memory.dmp

        Filesize

        33.5MB

      • memory/4388-111-0x0000000000400000-0x0000000002579000-memory.dmp

        Filesize

        33.5MB

      • memory/4388-15-0x0000000000400000-0x0000000002579000-memory.dmp

        Filesize

        33.5MB