Analysis

  • max time kernel
    129s
  • max time network
    130s
  • 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 12:30

General

  • Target

    26ce1d1cfc3ffc63b496b1c5583f70de25279431046cb3ddf049fc154ebf46cb.exe

  • Size

    416KB

  • MD5

    1d437f67261c695500c037d84c4b1616

  • SHA1

    7d806114ff347dc632514d93a86a583d6a388ffc

  • SHA256

    26ce1d1cfc3ffc63b496b1c5583f70de25279431046cb3ddf049fc154ebf46cb

  • SHA512

    903bd7361b1c98676a2d0566a3582a2fc0ab014ec2afb87e777716e5037fa0558fc2114f7a69eaa9db86e46c58c3d863903546dc68e6e6c2efc6ff5f06ab0827

  • SSDEEP

    6144:f/sljtGLGm0LFOvzmqUW8TcCovExfTp87gctz9Cc1jUyBnxeLDYtaZv:f/sljMLnmgSSecCmgpyz9C2/nO0tcv

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\26ce1d1cfc3ffc63b496b1c5583f70de25279431046cb3ddf049fc154ebf46cb.exe
    "C:\Users\Admin\AppData\Local\Temp\26ce1d1cfc3ffc63b496b1c5583f70de25279431046cb3ddf049fc154ebf46cb.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4020
    • C:\Users\Admin\AppData\Local\Temp\u33o.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u33o.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:4304
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4304 -s 2028
        3⤵
        • Program crash
        PID:4420
    • C:\Users\Admin\AppData\Local\Temp\u33o.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u33o.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:4124
      • 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:1468
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4020 -s 1000
      2⤵
      • Program crash
      PID:3464
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4020 -ip 4020
    1⤵
      PID:4396
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4304 -ip 4304
      1⤵
        PID:4584

      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

        cb2c6d21903088597ca74c98991036c0

        SHA1

        19a6d8decde9c7dd54adf1b9b1167af0916b19b6

        SHA256

        056c2e893216b8bd21920bb24d7f033b7f894712c27a37c264acc6dd43f5dfce

        SHA512

        1ce32401374c0655bdb47abeec01c19c540a01680f53f16bc60ca0ddd8deb506ce4c39b03886f712a3757d1e6e8dc60a4e4d75e2372bd6d34792aa7e3748142f

      • C:\Users\Admin\AppData\Local\Temp\u33o.0.exe

        Filesize

        275KB

        MD5

        9eb9464649a3e10e8aad3ce2a8e6b4f6

        SHA1

        4d8237f97a2349039f817f69ad1b0f7a317e7ade

        SHA256

        06ca216667daf350f1b6e97e7205b0dafe3e0e27a57ce368fe998504e766791f

        SHA512

        bb7741c17431b75a048778d00078f18f8dc0f79a2ee2386bf57eabfe8b1058015abfdf45ff667955363f5f5afd1b6d7a6754ca13b48e731d4ddc6d69cf1b2355

      • C:\Users\Admin\AppData\Local\Temp\u33o.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/1468-143-0x000001FD6E070000-0x000001FD6E07C000-memory.dmp

        Filesize

        48KB

      • memory/1468-158-0x000001FD72AE0000-0x000001FD72AE8000-memory.dmp

        Filesize

        32KB

      • memory/1468-169-0x000001FD73A10000-0x000001FD73A2E000-memory.dmp

        Filesize

        120KB

      • memory/1468-168-0x000001FD739E0000-0x000001FD73A02000-memory.dmp

        Filesize

        136KB

      • memory/1468-166-0x000001FD73990000-0x000001FD739E0000-memory.dmp

        Filesize

        320KB

      • memory/1468-167-0x000001FD73940000-0x000001FD7394C000-memory.dmp

        Filesize

        48KB

      • memory/1468-163-0x000001FD74120000-0x000001FD74648000-memory.dmp

        Filesize

        5.2MB

      • memory/1468-162-0x000001FD73BD0000-0x000001FD73BF2000-memory.dmp

        Filesize

        136KB

      • memory/1468-161-0x000001FD73BC0000-0x000001FD73BCA000-memory.dmp

        Filesize

        40KB

      • memory/1468-160-0x000001FD72A30000-0x000001FD72A3E000-memory.dmp

        Filesize

        56KB

      • memory/1468-159-0x000001FD72A60000-0x000001FD72A98000-memory.dmp

        Filesize

        224KB

      • memory/1468-140-0x000001FD4F290000-0x000001FD52B88000-memory.dmp

        Filesize

        57.0MB

      • memory/1468-141-0x000001FD6E250000-0x000001FD6E360000-memory.dmp

        Filesize

        1.1MB

      • memory/1468-142-0x000001FD6E050000-0x000001FD6E060000-memory.dmp

        Filesize

        64KB

      • memory/1468-156-0x000001FD6E730000-0x000001FD6EA30000-memory.dmp

        Filesize

        3.0MB

      • memory/1468-144-0x000001FD6E060000-0x000001FD6E074000-memory.dmp

        Filesize

        80KB

      • memory/1468-145-0x000001FD6E0D0000-0x000001FD6E0F4000-memory.dmp

        Filesize

        144KB

      • memory/1468-146-0x000001FD6E0F0000-0x000001FD6E0FA000-memory.dmp

        Filesize

        40KB

      • memory/1468-147-0x000001FD6E4A0000-0x000001FD6E552000-memory.dmp

        Filesize

        712KB

      • memory/1468-148-0x000001FD6E110000-0x000001FD6E13A000-memory.dmp

        Filesize

        168KB

      • memory/1468-149-0x000001FD6E550000-0x000001FD6E5CA000-memory.dmp

        Filesize

        488KB

      • memory/1468-150-0x000001FD6E5D0000-0x000001FD6E632000-memory.dmp

        Filesize

        392KB

      • memory/1468-151-0x000001FD6E6B0000-0x000001FD6E726000-memory.dmp

        Filesize

        472KB

      • memory/1468-152-0x000001FD6E100000-0x000001FD6E10A000-memory.dmp

        Filesize

        40KB

      • memory/4020-1-0x0000000001A50000-0x0000000001B50000-memory.dmp

        Filesize

        1024KB

      • memory/4020-2-0x0000000003650000-0x00000000036BC000-memory.dmp

        Filesize

        432KB

      • memory/4020-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/4020-71-0x0000000000400000-0x0000000001A32000-memory.dmp

        Filesize

        22.2MB

      • memory/4020-72-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/4124-139-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4124-127-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4304-15-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/4304-111-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/4304-13-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/4304-14-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB