Analysis

  • max time kernel
    134s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-05-2024 01:50

General

  • Target

    a4896480adaeb05564bbde92150c23eeb25c0bfee294795ebfea586014d7450e.exe

  • Size

    372KB

  • MD5

    d49472a9a9abd1f27b0200ac71a6bd80

  • SHA1

    7c48d497b1cca1d753f357d828eb1d2ceda6908d

  • SHA256

    a4896480adaeb05564bbde92150c23eeb25c0bfee294795ebfea586014d7450e

  • SHA512

    d994fb6fb64334f4e6f598785b802eb79c2be36b61281b5b4eb4204f8ece7e488e5bc9eb02ba5e03fcbf91b23a93ab718b4bfa5043fb6cd447d86efae744d843

  • SSDEEP

    6144:pl+08UGGfdzF7qxvwcB793ituNKkzXwGZTapf:p808UGgdtqrhauN3Xwwapf

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\a4896480adaeb05564bbde92150c23eeb25c0bfee294795ebfea586014d7450e.exe
    "C:\Users\Admin\AppData\Local\Temp\a4896480adaeb05564bbde92150c23eeb25c0bfee294795ebfea586014d7450e.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4744
    • C:\Users\Admin\AppData\Local\Temp\u3ns.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u3ns.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:4604
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4604 -s 2372
        3⤵
        • Program crash
        PID:2032
    • C:\Users\Admin\AppData\Local\Temp\u3ns.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u3ns.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:4300
      • 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:3600
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4744 -s 1520
      2⤵
      • Program crash
      PID:2900
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4744 -ip 4744
    1⤵
      PID:5096
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4604 -ip 4604
      1⤵
        PID:3956

      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

        2KB

        MD5

        4f6921a86e4189e3a4563cc01e8db849

        SHA1

        0a524ef0c34cc51747212cec8f081630375ffd7f

        SHA256

        f9fc0894ad2d481b1ca93cb5173f61cac7388617f74b41bd35890b833e5c8634

        SHA512

        06e8b0af13e8039a409d9996b799e4da9b926b9cadbaa162acbc4f7cabd3b36fc92ca2d5170e5afda474c1e7ad407b7297ed818a95525d6c96291f98c28d405a

      • C:\Users\Admin\AppData\Local\Temp\u3ns.0.exe

        Filesize

        230KB

        MD5

        2c1f5406f854370921a90cc0f3f11145

        SHA1

        6969f52309b66f6a09f08c0e67db4956df150346

        SHA256

        79678293aad51fc96c947e496351048672ece528457daab0cfc93b35c16d1ab9

        SHA512

        6104eaa7a60a29b5962b3cff8cde7b7c237ced82f11a7c581df30725d1d5aec187b30ebbe7d6d61f45964cf4f70ea605c9b20c504e5dddc2451f440ecb50e2ac

      • C:\Users\Admin\AppData\Local\Temp\u3ns.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/3600-157-0x000001E1324B0000-0x000001E1327B0000-memory.dmp

        Filesize

        3.0MB

      • memory/3600-159-0x000001E136EB0000-0x000001E136EB8000-memory.dmp

        Filesize

        32KB

      • memory/3600-171-0x000001E137740000-0x000001E13775E000-memory.dmp

        Filesize

        120KB

      • memory/3600-170-0x000001E1377E0000-0x000001E137856000-memory.dmp

        Filesize

        472KB

      • memory/3600-169-0x000001E137700000-0x000001E13770C000-memory.dmp

        Filesize

        48KB

      • memory/3600-166-0x000001E137F10000-0x000001E138438000-memory.dmp

        Filesize

        5.2MB

      • memory/3600-165-0x000001E1376E0000-0x000001E137702000-memory.dmp

        Filesize

        136KB

      • memory/3600-164-0x000001E137980000-0x000001E1379E2000-memory.dmp

        Filesize

        392KB

      • memory/3600-163-0x000001E137960000-0x000001E13796A000-memory.dmp

        Filesize

        40KB

      • memory/3600-162-0x000001E1367E0000-0x000001E1367E8000-memory.dmp

        Filesize

        32KB

      • memory/3600-161-0x000001E1367C0000-0x000001E1367CE000-memory.dmp

        Filesize

        56KB

      • memory/3600-160-0x000001E1367F0000-0x000001E136828000-memory.dmp

        Filesize

        224KB

      • memory/3600-142-0x000001E114020000-0x000001E117854000-memory.dmp

        Filesize

        56.2MB

      • memory/3600-143-0x000001E132110000-0x000001E13221A000-memory.dmp

        Filesize

        1.0MB

      • memory/3600-144-0x000001E1195F0000-0x000001E119600000-memory.dmp

        Filesize

        64KB

      • memory/3600-145-0x000001E131DD0000-0x000001E131DDC000-memory.dmp

        Filesize

        48KB

      • memory/3600-146-0x000001E131DC0000-0x000001E131DD4000-memory.dmp

        Filesize

        80KB

      • memory/3600-147-0x000001E131E20000-0x000001E131E44000-memory.dmp

        Filesize

        144KB

      • memory/3600-148-0x000001E131E40000-0x000001E131E4A000-memory.dmp

        Filesize

        40KB

      • memory/3600-149-0x000001E131E60000-0x000001E131E8A000-memory.dmp

        Filesize

        168KB

      • memory/3600-150-0x000001E132360000-0x000001E132412000-memory.dmp

        Filesize

        712KB

      • memory/3600-151-0x000001E132460000-0x000001E1324B0000-memory.dmp

        Filesize

        320KB

      • memory/3600-152-0x000001E132410000-0x000001E132432000-memory.dmp

        Filesize

        136KB

      • memory/3600-153-0x000001E131E50000-0x000001E131E5A000-memory.dmp

        Filesize

        40KB

      • memory/4300-141-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4300-129-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4604-15-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/4604-113-0x0000000000400000-0x0000000001A04000-memory.dmp

        Filesize

        22.0MB

      • memory/4604-13-0x0000000000400000-0x0000000001A04000-memory.dmp

        Filesize

        22.0MB

      • memory/4604-14-0x0000000000400000-0x0000000001A04000-memory.dmp

        Filesize

        22.0MB

      • memory/4604-52-0x0000000000400000-0x0000000001A04000-memory.dmp

        Filesize

        22.0MB

      • memory/4744-2-0x00000000036B0000-0x000000000371C000-memory.dmp

        Filesize

        432KB

      • memory/4744-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/4744-1-0x0000000001B40000-0x0000000001C40000-memory.dmp

        Filesize

        1024KB

      • memory/4744-82-0x0000000000400000-0x0000000001A27000-memory.dmp

        Filesize

        22.2MB

      • memory/4744-83-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB