Analysis

  • max time kernel
    141s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-05-2024 15:33

General

  • Target

    38dec2bb18d0275df5ffcb31f420b02c1c7bb85d5f162cc76e4dd561415a4713.exe

  • Size

    408KB

  • MD5

    d4003f52ffab593480270da1ab446f5d

  • SHA1

    02d80a6c2fee9bb0201ab1dd1eab0b4d743bd8b4

  • SHA256

    38dec2bb18d0275df5ffcb31f420b02c1c7bb85d5f162cc76e4dd561415a4713

  • SHA512

    5ce8a80563e2212b7f75d19347a173546b474812b1c5e457b6be5f82cbb6d211a3f5e1f48ae7f30b499c3af918a258b1164662c183a90aae4d90eb1a22928352

  • SSDEEP

    6144:Et/Mq3iBOHmgiOSbXEX1Hj09wKU2mvAJgiBthwUo:LaRilbUX2jS2Bt2Uo

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 27 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\38dec2bb18d0275df5ffcb31f420b02c1c7bb85d5f162cc76e4dd561415a4713.exe
    "C:\Users\Admin\AppData\Local\Temp\38dec2bb18d0275df5ffcb31f420b02c1c7bb85d5f162cc76e4dd561415a4713.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2508
    • C:\Users\Admin\AppData\Local\Temp\u1xo.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u1xo.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:3712
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3712 -s 2368
        3⤵
        • Program crash
        PID:5068
    • C:\Users\Admin\AppData\Local\Temp\u1xo.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u1xo.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:1988
      • 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:1536
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2508 -s 1600
      2⤵
      • Program crash
      PID:4432
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2508 -ip 2508
    1⤵
      PID:3316
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 3712 -ip 3712
      1⤵
        PID:2416

      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\u1xo.0.exe

        Filesize

        266KB

        MD5

        6bab6de801426725e2bfb5fe5e618be3

        SHA1

        a95566e6494f403bee7ba8f87740afb7b2390a71

        SHA256

        ecaa6655bef1c90bf1fa78e326b9df7561a7df156315f1ce1abef710ea925104

        SHA512

        6e9940f12e2bca37d3df5e35627a013a42229a5a91c6393a712f955e3450b0edd4dbb161c43b61905a0e16e778d91a5880d9e2e65958c09b77252e117c6cb101

      • C:\Users\Admin\AppData\Local\Temp\u1xo.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/1536-127-0x000002469FAA0000-0x000002469FAAA000-memory.dmp

        Filesize

        40KB

      • memory/1536-117-0x000002469A130000-0x000002469A13A000-memory.dmp

        Filesize

        40KB

      • memory/1536-136-0x00000246FE250000-0x00000246FE26E000-memory.dmp

        Filesize

        120KB

      • memory/1536-135-0x00000246FE350000-0x00000246FE3C6000-memory.dmp

        Filesize

        472KB

      • memory/1536-134-0x000002469FAD0000-0x000002469FADC000-memory.dmp

        Filesize

        48KB

      • memory/1536-131-0x00000246A1130000-0x00000246A1658000-memory.dmp

        Filesize

        5.2MB

      • memory/1536-129-0x000002469FAB0000-0x000002469FAD2000-memory.dmp

        Filesize

        136KB

      • memory/1536-64-0x00000246FA620000-0x00000246FDE54000-memory.dmp

        Filesize

        56.2MB

      • memory/1536-128-0x00000246A0BA0000-0x00000246A0C02000-memory.dmp

        Filesize

        392KB

      • memory/1536-101-0x000002469B410000-0x000002469B51A000-memory.dmp

        Filesize

        1.0MB

      • memory/1536-103-0x000002469A160000-0x000002469A16C000-memory.dmp

        Filesize

        48KB

      • memory/1536-102-0x000002469A140000-0x000002469A150000-memory.dmp

        Filesize

        64KB

      • memory/1536-107-0x000002469A150000-0x000002469A164000-memory.dmp

        Filesize

        80KB

      • memory/1536-108-0x000002469B110000-0x000002469B134000-memory.dmp

        Filesize

        144KB

      • memory/1536-112-0x000002469A120000-0x000002469A12A000-memory.dmp

        Filesize

        40KB

      • memory/1536-113-0x000002469B290000-0x000002469B2BA000-memory.dmp

        Filesize

        168KB

      • memory/1536-114-0x000002469B660000-0x000002469B712000-memory.dmp

        Filesize

        712KB

      • memory/1536-115-0x00000246FE200000-0x00000246FE250000-memory.dmp

        Filesize

        320KB

      • memory/1536-116-0x00000246FE1B0000-0x00000246FE1D2000-memory.dmp

        Filesize

        136KB

      • memory/1536-126-0x00000246FE100000-0x00000246FE108000-memory.dmp

        Filesize

        32KB

      • memory/1536-121-0x000002469B710000-0x000002469BA10000-memory.dmp

        Filesize

        3.0MB

      • memory/1536-123-0x00000246FE0E0000-0x00000246FE0E8000-memory.dmp

        Filesize

        32KB

      • memory/1536-124-0x00000246FE290000-0x00000246FE2C8000-memory.dmp

        Filesize

        224KB

      • memory/1536-125-0x00000246FE0F0000-0x00000246FE0FE000-memory.dmp

        Filesize

        56KB

      • memory/1988-62-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/1988-50-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/2508-5-0x0000000000400000-0x0000000002B23000-memory.dmp

        Filesize

        39.1MB

      • memory/2508-1-0x0000000002CC0000-0x0000000002DC0000-memory.dmp

        Filesize

        1024KB

      • memory/2508-28-0x0000000000400000-0x0000000002B23000-memory.dmp

        Filesize

        39.1MB

      • memory/2508-29-0x0000000002EC0000-0x0000000002F2C000-memory.dmp

        Filesize

        432KB

      • memory/2508-30-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/2508-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/2508-2-0x0000000002EC0000-0x0000000002F2C000-memory.dmp

        Filesize

        432KB

      • memory/3712-63-0x0000000000400000-0x0000000002AFF000-memory.dmp

        Filesize

        39.0MB

      • memory/3712-65-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/3712-130-0x0000000000400000-0x0000000002AFF000-memory.dmp

        Filesize

        39.0MB

      • memory/3712-166-0x0000000000400000-0x0000000002AFF000-memory.dmp

        Filesize

        39.0MB

      • memory/3712-167-0x0000000000400000-0x0000000002AFF000-memory.dmp

        Filesize

        39.0MB