Analysis

  • max time kernel
    133s
  • max time network
    132s
  • 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 13:07

General

  • Target

    3e669ba69526b54d56702815e33dc3d5f89a059636a85b48f4aacf12d06ad088.exe

  • Size

    416KB

  • MD5

    d787f19c83e7221552cb86dbea74c4e7

  • SHA1

    7218da4cafa0773f548a7d7fc7f4511a4d4541e5

  • SHA256

    3e669ba69526b54d56702815e33dc3d5f89a059636a85b48f4aacf12d06ad088

  • SHA512

    4552cdc7979c21e60d73c39bf9df12c5fed4c1534a45906e1d5b9fc60a0c94236faa6af4f2153867b1443d8705178ab27518a13c01650e78e2d68ddc33b7cdea

  • SSDEEP

    6144:H/BZItaWG0e12qQ61HC7bIxM6Wp8ik/QAYiVA2XOxx0HNhBp7/nyaFotaZo:fBZI4WObXGIa6AA/eV+HNhLvCtco

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\3e669ba69526b54d56702815e33dc3d5f89a059636a85b48f4aacf12d06ad088.exe
    "C:\Users\Admin\AppData\Local\Temp\3e669ba69526b54d56702815e33dc3d5f89a059636a85b48f4aacf12d06ad088.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3900
    • C:\Users\Admin\AppData\Local\Temp\u30c.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u30c.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:4776
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4776 -s 2316
        3⤵
        • Program crash
        PID:5024
    • C:\Users\Admin\AppData\Local\Temp\u30c.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u30c.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:1196
      • 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:4916
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3900 -s 1144
      2⤵
      • Program crash
      PID:2860
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3900 -ip 3900
    1⤵
      PID:4676
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4776 -ip 4776
      1⤵
        PID:4316

      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\u30c.0.exe

        Filesize

        274KB

        MD5

        b63651242fe0e7f1fec1bde74aa9a314

        SHA1

        207fa50fec5ad58497fe74ab1025fa5581aa7bba

        SHA256

        bab90c5ac83470d55766cdbd3dffb8f4f4531d7b3fdf49dd5e318def2697c44c

        SHA512

        05df1e4d9d9a42efa9638eb92d37dc37c30c6cf9abf89ca97c46cbab0ea2de87c9d3723561dbf33e6832dd69774ccc16405ac121c9450e5f82db5d73863e335f

      • C:\Users\Admin\AppData\Local\Temp\u30c.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/1196-145-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/1196-133-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/3900-76-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/3900-1-0x0000000001A50000-0x0000000001B50000-memory.dmp

        Filesize

        1024KB

      • memory/3900-75-0x0000000003670000-0x00000000036DC000-memory.dmp

        Filesize

        432KB

      • memory/3900-74-0x0000000000400000-0x0000000001A32000-memory.dmp

        Filesize

        22.2MB

      • memory/3900-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/3900-2-0x0000000003670000-0x00000000036DC000-memory.dmp

        Filesize

        432KB

      • memory/4776-23-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/4776-16-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/4776-13-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/4776-117-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/4916-149-0x000001F410910000-0x000001F41091C000-memory.dmp

        Filesize

        48KB

      • memory/4916-157-0x000001F42BFD0000-0x000001F42C046000-memory.dmp

        Filesize

        472KB

      • memory/4916-148-0x000001F4108B0000-0x000001F4108C0000-memory.dmp

        Filesize

        64KB

      • memory/4916-146-0x000001F40CB30000-0x000001F410428000-memory.dmp

        Filesize

        57.0MB

      • memory/4916-150-0x000001F410900000-0x000001F410914000-memory.dmp

        Filesize

        80KB

      • memory/4916-151-0x000001F412260000-0x000001F412284000-memory.dmp

        Filesize

        144KB

      • memory/4916-152-0x000001F410810000-0x000001F41081A000-memory.dmp

        Filesize

        40KB

      • memory/4916-153-0x000001F42BE40000-0x000001F42BEF2000-memory.dmp

        Filesize

        712KB

      • memory/4916-154-0x000001F412280000-0x000001F4122AA000-memory.dmp

        Filesize

        168KB

      • memory/4916-155-0x000001F42B910000-0x000001F42B98A000-memory.dmp

        Filesize

        488KB

      • memory/4916-156-0x000001F42BEF0000-0x000001F42BF52000-memory.dmp

        Filesize

        392KB

      • memory/4916-147-0x000001F42BAB0000-0x000001F42BBC0000-memory.dmp

        Filesize

        1.1MB

      • memory/4916-158-0x000001F410820000-0x000001F41082A000-memory.dmp

        Filesize

        40KB

      • memory/4916-162-0x000001F42C050000-0x000001F42C350000-memory.dmp

        Filesize

        3.0MB

      • memory/4916-164-0x000001F42BFA0000-0x000001F42BFA8000-memory.dmp

        Filesize

        32KB

      • memory/4916-165-0x000001F430330000-0x000001F430368000-memory.dmp

        Filesize

        224KB

      • memory/4916-166-0x000001F42BFC0000-0x000001F42BFCE000-memory.dmp

        Filesize

        56KB

      • memory/4916-167-0x000001F4303A0000-0x000001F4303AA000-memory.dmp

        Filesize

        40KB

      • memory/4916-168-0x000001F431480000-0x000001F4314A2000-memory.dmp

        Filesize

        136KB

      • memory/4916-169-0x000001F4319D0000-0x000001F431EF8000-memory.dmp

        Filesize

        5.2MB

      • memory/4916-173-0x000001F4303B0000-0x000001F4303BC000-memory.dmp

        Filesize

        48KB

      • memory/4916-172-0x000001F431250000-0x000001F4312A0000-memory.dmp

        Filesize

        320KB

      • memory/4916-174-0x000001F4312A0000-0x000001F4312C2000-memory.dmp

        Filesize

        136KB

      • memory/4916-175-0x000001F431230000-0x000001F43124E000-memory.dmp

        Filesize

        120KB