Analysis

  • max time kernel
    142s
  • max time network
    144s
  • 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, 00:09

General

  • Target

    c2a79d5678242500ef4e282ad70b99c4342c2d6388c7bf6e630c6b9d7097014a.exe

  • Size

    364KB

  • MD5

    004e1c0583cba9848b8bebb2eef5b58f

  • SHA1

    2c32e158fb6f02dca3017076edf423e35e977721

  • SHA256

    c2a79d5678242500ef4e282ad70b99c4342c2d6388c7bf6e630c6b9d7097014a

  • SHA512

    4bb241eb8b464f6b0ecbfeffeeeaf65f7f5530f9bd78eee2c155046fbdbaebe512363a2f0a59e6dc0620946db153226cb740a09b911a965c0ccbd21e1166e7a3

  • SSDEEP

    6144:aEToWW+sKejNKsTbTpfSl2JyRVc6TI2DNJeTNPcOlE/r1EHSRKYTpWP:awot+LKwy/pfSl2Jy7fTPNopJya6tpWP

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\c2a79d5678242500ef4e282ad70b99c4342c2d6388c7bf6e630c6b9d7097014a.exe
    "C:\Users\Admin\AppData\Local\Temp\c2a79d5678242500ef4e282ad70b99c4342c2d6388c7bf6e630c6b9d7097014a.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2532
    • C:\Users\Admin\AppData\Local\Temp\u1yc.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u1yc.0.exe"
      2⤵
      • Executes dropped EXE
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:3216
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3216 -s 1304
        3⤵
        • Program crash
        PID:1788
    • C:\Users\Admin\AppData\Local\Temp\u1yc.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u1yc.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:3612
      • 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:2848
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2532 -s 992
      2⤵
      • Program crash
      PID:5056
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2532 -ip 2532
    1⤵
      PID:1460
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3216 -ip 3216
      1⤵
        PID:4880

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\u1yc.0.exe

        Filesize

        223KB

        MD5

        816cbc57fc20eb01645497ed35bdeb19

        SHA1

        3222b725c5031a12b310ef8c1b8bb120b345c80e

        SHA256

        c15c3a1a771770d1f3a838cdb6d0fcffea562e42d118b37087dd6022fff13c53

        SHA512

        2bf23ac407844682107c68705e0ac072d7a8767f0c9a8c2bb913cc394e6c85bd22a7024c5253130f4a5b26a083e9518f2d4f21b775da6d2812ab808587aa399e

      • C:\Users\Admin\AppData\Local\Temp\u1yc.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/2532-33-0x0000000000400000-0x0000000002597000-memory.dmp

        Filesize

        33.6MB

      • memory/2532-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/2532-1-0x00000000026E0000-0x00000000027E0000-memory.dmp

        Filesize

        1024KB

      • memory/2532-2-0x00000000041C0000-0x000000000422C000-memory.dmp

        Filesize

        432KB

      • memory/2532-36-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/2848-86-0x000001CB759C0000-0x000001CB759CE000-memory.dmp

        Filesize

        56KB

      • memory/2848-76-0x000001CB75350000-0x000001CB753A0000-memory.dmp

        Filesize

        320KB

      • memory/2848-96-0x000001CB7A5E0000-0x000001CB7A5FE000-memory.dmp

        Filesize

        120KB

      • memory/2848-95-0x000001CB7A670000-0x000001CB7A6E6000-memory.dmp

        Filesize

        472KB

      • memory/2848-94-0x000001CB794B0000-0x000001CB794BC000-memory.dmp

        Filesize

        48KB

      • memory/2848-67-0x000001CB6E0F0000-0x000001CB71924000-memory.dmp

        Filesize

        56.2MB

      • memory/2848-70-0x000001CB74DE0000-0x000001CB74DEC000-memory.dmp

        Filesize

        48KB

      • memory/2848-71-0x000001CB73E30000-0x000001CB73E44000-memory.dmp

        Filesize

        80KB

      • memory/2848-72-0x000001CB74E50000-0x000001CB74E74000-memory.dmp

        Filesize

        144KB

      • memory/2848-69-0x000001CB73550000-0x000001CB73560000-memory.dmp

        Filesize

        64KB

      • memory/2848-68-0x000001CB75000000-0x000001CB7510A000-memory.dmp

        Filesize

        1.0MB

      • memory/2848-74-0x000001CB74E80000-0x000001CB74EAA000-memory.dmp

        Filesize

        168KB

      • memory/2848-73-0x000001CB74DF0000-0x000001CB74DFA000-memory.dmp

        Filesize

        40KB

      • memory/2848-75-0x000001CB75250000-0x000001CB75302000-memory.dmp

        Filesize

        712KB

      • memory/2848-77-0x000001CB753A0000-0x000001CB753C2000-memory.dmp

        Filesize

        136KB

      • memory/2848-91-0x000001CB7AB10000-0x000001CB7B038000-memory.dmp

        Filesize

        5.2MB

      • memory/2848-82-0x000001CB753D0000-0x000001CB756D0000-memory.dmp

        Filesize

        3.0MB

      • memory/2848-78-0x000001CB74E70000-0x000001CB74E7A000-memory.dmp

        Filesize

        40KB

      • memory/2848-84-0x000001CB79450000-0x000001CB79458000-memory.dmp

        Filesize

        32KB

      • memory/2848-87-0x000001CB759E0000-0x000001CB759E8000-memory.dmp

        Filesize

        32KB

      • memory/2848-90-0x000001CB79480000-0x000001CB794A2000-memory.dmp

        Filesize

        136KB

      • memory/2848-88-0x000001CB79470000-0x000001CB7947A000-memory.dmp

        Filesize

        40KB

      • memory/2848-89-0x000001CB7A580000-0x000001CB7A5E2000-memory.dmp

        Filesize

        392KB

      • memory/2848-85-0x000001CB759F0000-0x000001CB75A28000-memory.dmp

        Filesize

        224KB

      • memory/3216-13-0x0000000000400000-0x0000000002574000-memory.dmp

        Filesize

        33.5MB

      • memory/3216-14-0x0000000000400000-0x0000000002574000-memory.dmp

        Filesize

        33.5MB

      • memory/3216-63-0x0000000000400000-0x0000000002574000-memory.dmp

        Filesize

        33.5MB

      • memory/3216-100-0x0000000000400000-0x0000000002574000-memory.dmp

        Filesize

        33.5MB

      • memory/3216-102-0x0000000000400000-0x0000000002574000-memory.dmp

        Filesize

        33.5MB

      • memory/3216-104-0x0000000000400000-0x0000000002574000-memory.dmp

        Filesize

        33.5MB

      • memory/3612-66-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/3612-52-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB