Analysis

  • max time kernel
    143s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-05-2024 22:00

General

  • Target

    2a7a431bf67a89aece1b155fc2a21dc66c17ed6dd4d310006240d14ef5f3cc20.exe

  • Size

    388KB

  • MD5

    955a51e6eb69e7a8a567b3b90a254349

  • SHA1

    dc9848c35eb27dda95699ec492b05913efd64aed

  • SHA256

    2a7a431bf67a89aece1b155fc2a21dc66c17ed6dd4d310006240d14ef5f3cc20

  • SHA512

    a64bf9f444df71f92c4559d37bfc657b35afbdc2ce1408b02d6f27b5e7cef71ead4b56fbf9f5e73870810823bedc74f1035f4a99363b7ab8374e8401f4b3a9d1

  • SSDEEP

    12288:aG1ixU5HEhboNYNJHxqi4vdf4qLfxmGL1:aGMnhbvrHwi4vdAqL0GL1

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 26 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\2a7a431bf67a89aece1b155fc2a21dc66c17ed6dd4d310006240d14ef5f3cc20.exe
    "C:\Users\Admin\AppData\Local\Temp\2a7a431bf67a89aece1b155fc2a21dc66c17ed6dd4d310006240d14ef5f3cc20.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4012
    • C:\Users\Admin\AppData\Local\Temp\u33g.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u33g.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:2464
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2464 -s 2336
        3⤵
        • Program crash
        PID:2176
    • C:\Users\Admin\AppData\Local\Temp\u33g.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u33g.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:484
      • 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:3504
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4012 -s 984
      2⤵
      • Program crash
      PID:2028
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4012 -ip 4012
    1⤵
      PID:436
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2464 -ip 2464
      1⤵
        PID:1492

      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

        d159a72c96f9857cdf0592b96a26d2bf

        SHA1

        2d7063582d1d7be4ce75c25eec4ae7e71b19fdf1

        SHA256

        3422a00590433fbd70bcb204b72cb4d3995cffa237649d0c18ea07f20d8da471

        SHA512

        a0a0581d598e0b59a696c2f80d6766e8ddd6d432a329500274a98dbbec5e195af758a6f0880a9596cd833240fe5bea217054b8c75bca18e9023412536228e7f4

      • C:\Users\Admin\AppData\Local\Temp\u33g.0.exe

        Filesize

        245KB

        MD5

        5ea66fe490011da271a673577bad5bde

        SHA1

        04191be80d32e89c876840af14ad9352a0c1eff2

        SHA256

        a8b093f291c9d435b8c9f832e7817a854e04290da381672de6234b031b2cf3a0

        SHA512

        6ae839e1e59cc1ab2abd4c8dec88cef0d1e89110614d443d6e64b99faa2dba8b1d4b9a00824cfe91f94c29e32413a7ff3448249aee342349868a0dab9bd3db97

      • C:\Users\Admin\AppData\Local\Temp\u33g.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/484-136-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/484-144-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/2464-135-0x0000000000400000-0x0000000002579000-memory.dmp

        Filesize

        33.5MB

      • memory/2464-29-0x0000000000400000-0x0000000002579000-memory.dmp

        Filesize

        33.5MB

      • memory/2464-37-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/2464-79-0x0000000000400000-0x0000000002579000-memory.dmp

        Filesize

        33.5MB

      • memory/2464-152-0x0000000000400000-0x0000000002579000-memory.dmp

        Filesize

        33.5MB

      • memory/3504-147-0x0000012C0F8D0000-0x0000012C0F8E0000-memory.dmp

        Filesize

        64KB

      • memory/3504-155-0x0000012C29510000-0x0000012C295C2000-memory.dmp

        Filesize

        712KB

      • memory/3504-176-0x0000012C2D9E0000-0x0000012C2D9FE000-memory.dmp

        Filesize

        120KB

      • memory/3504-175-0x0000012C2E960000-0x0000012C2E9D6000-memory.dmp

        Filesize

        472KB

      • memory/3504-174-0x0000012C29CC0000-0x0000012C29CCC000-memory.dmp

        Filesize

        48KB

      • memory/3504-171-0x0000012C2EB90000-0x0000012C2F0B8000-memory.dmp

        Filesize

        5.2MB

      • memory/3504-145-0x0000012C0A370000-0x0000012C0DBA4000-memory.dmp

        Filesize

        56.2MB

      • memory/3504-148-0x0000012C0F8F0000-0x0000012C0F8FC000-memory.dmp

        Filesize

        48KB

      • memory/3504-149-0x0000012C0F8E0000-0x0000012C0F8F4000-memory.dmp

        Filesize

        80KB

      • memory/3504-170-0x0000012C2D2A0000-0x0000012C2D2C2000-memory.dmp

        Filesize

        136KB

      • memory/3504-146-0x0000012C292C0000-0x0000012C293CA000-memory.dmp

        Filesize

        1.0MB

      • memory/3504-150-0x0000012C28FA0000-0x0000012C28FC4000-memory.dmp

        Filesize

        144KB

      • memory/3504-169-0x0000012C2D960000-0x0000012C2D9C2000-memory.dmp

        Filesize

        392KB

      • memory/3504-153-0x0000012C0F900000-0x0000012C0F90A000-memory.dmp

        Filesize

        40KB

      • memory/3504-154-0x0000012C29020000-0x0000012C2904A000-memory.dmp

        Filesize

        168KB

      • memory/3504-168-0x0000012C29CB0000-0x0000012C29CBA000-memory.dmp

        Filesize

        40KB

      • memory/3504-156-0x0000012C295C0000-0x0000012C29610000-memory.dmp

        Filesize

        320KB

      • memory/3504-157-0x0000012C29610000-0x0000012C29632000-memory.dmp

        Filesize

        136KB

      • memory/3504-158-0x0000012C28FC0000-0x0000012C28FCA000-memory.dmp

        Filesize

        40KB

      • memory/3504-162-0x0000012C29640000-0x0000012C29940000-memory.dmp

        Filesize

        3.0MB

      • memory/3504-164-0x0000012C29990000-0x0000012C29998000-memory.dmp

        Filesize

        32KB

      • memory/3504-165-0x0000012C29C20000-0x0000012C29C58000-memory.dmp

        Filesize

        224KB

      • memory/3504-166-0x0000012C29BE0000-0x0000012C29BEE000-memory.dmp

        Filesize

        56KB

      • memory/3504-167-0x0000012C29C00000-0x0000012C29C08000-memory.dmp

        Filesize

        32KB

      • memory/4012-31-0x00000000041E0000-0x000000000424C000-memory.dmp

        Filesize

        432KB

      • memory/4012-2-0x00000000041E0000-0x000000000424C000-memory.dmp

        Filesize

        432KB

      • memory/4012-1-0x00000000026C0000-0x00000000027C0000-memory.dmp

        Filesize

        1024KB

      • memory/4012-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/4012-4-0x0000000000400000-0x000000000259D000-memory.dmp

        Filesize

        33.6MB

      • memory/4012-24-0x0000000000400000-0x000000000259D000-memory.dmp

        Filesize

        33.6MB

      • memory/4012-32-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB