Analysis

  • max time kernel
    140s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-05-2024 19:47

General

  • Target

    af16d622ac4cf88e22429eb6e0ffac4126dfcec5da0911ae8bf41743e66f9e51.exe

  • Size

    384KB

  • MD5

    de0f98f97da3867fc5926328bf2a9cfe

  • SHA1

    92064131a986e3520a6a7f068c23e94b3bf8f862

  • SHA256

    af16d622ac4cf88e22429eb6e0ffac4126dfcec5da0911ae8bf41743e66f9e51

  • SHA512

    3b93ade6420ca568d9e49cfb39685a20aa349770b2920e3a804485ffb6df331d98fdfc8e3412bbb2ab6fcb30ac2246d4c8544fc92345b820b44fbd8cbcf32ad2

  • SSDEEP

    6144:2nNm4Za4Cv1GOuLzYI0dBXV9TCS/lMEGFZCTiQJ0s6:2nNNZg1GOuL5SV9TNyEGFTQP6

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
  • 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\af16d622ac4cf88e22429eb6e0ffac4126dfcec5da0911ae8bf41743e66f9e51.exe
    "C:\Users\Admin\AppData\Local\Temp\af16d622ac4cf88e22429eb6e0ffac4126dfcec5da0911ae8bf41743e66f9e51.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3344
    • C:\Users\Admin\AppData\Local\Temp\u2kw.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u2kw.0.exe"
      2⤵
      • Executes dropped EXE
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:4576
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4576 -s 1140
        3⤵
        • Program crash
        PID:2852
    • C:\Users\Admin\AppData\Local\Temp\u2kw.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u2kw.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:2036
      • 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:3036
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3344 -s 1512
      2⤵
      • Program crash
      PID:4276
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3344 -ip 3344
    1⤵
      PID:1652
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4576 -ip 4576
      1⤵
        PID:4844

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\u2kw.0.exe

        Filesize

        206KB

        MD5

        0917be53327ea132956255dcab650a82

        SHA1

        b60818917f645a8a9af3b530e3ae37c1f002be2f

        SHA256

        211c34660898480e0777c6ef6f61bf2111f6550e00b40cab859543d567dc455a

        SHA512

        a72acc24ba813d983bbf2ecab7929d0aab4e25637ae43e85b973a5105429bd15c061415fd855737620caaf81b456b2d6ba57f85566245efbe5f8b5db5560932a

      • C:\Users\Admin\AppData\Local\Temp\u2kw.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/2036-67-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/2036-55-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/3036-90-0x000002256D450000-0x000002256D45A000-memory.dmp

        Filesize

        40KB

      • memory/3036-92-0x000002256E270000-0x000002256E292000-memory.dmp

        Filesize

        136KB

      • memory/3036-79-0x0000022568C80000-0x0000022568CA2000-memory.dmp

        Filesize

        136KB

      • memory/3036-78-0x0000022569000000-0x0000022569050000-memory.dmp

        Filesize

        320KB

      • memory/3036-98-0x000002256E2D0000-0x000002256E2EE000-memory.dmp

        Filesize

        120KB

      • memory/3036-97-0x000002256E370000-0x000002256E3E6000-memory.dmp

        Filesize

        472KB

      • memory/3036-96-0x000002256E290000-0x000002256E29C000-memory.dmp

        Filesize

        48KB

      • memory/3036-93-0x000002256EA90000-0x000002256EFB8000-memory.dmp

        Filesize

        5.2MB

      • memory/3036-91-0x000002256E500000-0x000002256E562000-memory.dmp

        Filesize

        392KB

      • memory/3036-68-0x0000022549D40000-0x000002254D574000-memory.dmp

        Filesize

        56.2MB

      • memory/3036-70-0x0000022568B70000-0x0000022568C7A000-memory.dmp

        Filesize

        1.0MB

      • memory/3036-71-0x000002254F2A0000-0x000002254F2B0000-memory.dmp

        Filesize

        64KB

      • memory/3036-72-0x000002254F400000-0x000002254F40C000-memory.dmp

        Filesize

        48KB

      • memory/3036-73-0x000002254F3F0000-0x000002254F404000-memory.dmp

        Filesize

        80KB

      • memory/3036-74-0x000002254F470000-0x000002254F494000-memory.dmp

        Filesize

        144KB

      • memory/3036-75-0x0000022568AC0000-0x0000022568ACA000-memory.dmp

        Filesize

        40KB

      • memory/3036-76-0x0000022568AE0000-0x0000022568B0A000-memory.dmp

        Filesize

        168KB

      • memory/3036-77-0x0000022568F50000-0x0000022569002000-memory.dmp

        Filesize

        712KB

      • memory/3036-89-0x000002256D3B0000-0x000002256D3B8000-memory.dmp

        Filesize

        32KB

      • memory/3036-88-0x000002256D390000-0x000002256D39E000-memory.dmp

        Filesize

        56KB

      • memory/3036-84-0x0000022569050000-0x0000022569350000-memory.dmp

        Filesize

        3.0MB

      • memory/3036-80-0x0000022568AD0000-0x0000022568ADA000-memory.dmp

        Filesize

        40KB

      • memory/3036-86-0x000002256CCC0000-0x000002256CCC8000-memory.dmp

        Filesize

        32KB

      • memory/3036-87-0x000002256D3D0000-0x000002256D408000-memory.dmp

        Filesize

        224KB

      • memory/3344-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/3344-32-0x0000000002DD0000-0x0000000002E3C000-memory.dmp

        Filesize

        432KB

      • memory/3344-2-0x0000000002DD0000-0x0000000002E3C000-memory.dmp

        Filesize

        432KB

      • memory/3344-1-0x0000000002EB0000-0x0000000002FB0000-memory.dmp

        Filesize

        1024KB

      • memory/3344-16-0x0000000000400000-0x0000000002B1E000-memory.dmp

        Filesize

        39.1MB

      • memory/3344-31-0x0000000000400000-0x0000000002B1E000-memory.dmp

        Filesize

        39.1MB

      • memory/3344-33-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/4576-106-0x0000000000400000-0x0000000002AF1000-memory.dmp

        Filesize

        38.9MB

      • memory/4576-54-0x0000000000400000-0x0000000002AF1000-memory.dmp

        Filesize

        38.9MB

      • memory/4576-101-0x0000000000400000-0x0000000002AF1000-memory.dmp

        Filesize

        38.9MB

      • memory/4576-38-0x0000000000400000-0x0000000002AF1000-memory.dmp

        Filesize

        38.9MB

      • memory/4576-103-0x0000000000400000-0x0000000002AF1000-memory.dmp

        Filesize

        38.9MB

      • memory/4576-108-0x0000000000400000-0x0000000002AF1000-memory.dmp

        Filesize

        38.9MB