Analysis

  • max time kernel
    142s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-05-2024 17:15

General

  • Target

    749354f8c6f54750b9ece204494d6281fbab361ba448576a7dae67f37bfd9ffe.exe

  • Size

    372KB

  • MD5

    8864a8f0334f1c6526eaa3b43309d0a6

  • SHA1

    a2ef42da63c8e548522231760cad2fdb383b0cce

  • SHA256

    749354f8c6f54750b9ece204494d6281fbab361ba448576a7dae67f37bfd9ffe

  • SHA512

    4c2cf1e51067ac396ddefe0165cd1de8ef1dff550604645f02d243e267f657d4d4f17916b5670c4eb7ac482f063c8650ea718c1bbdb9a0c03516c4b5c7f389f0

  • SSDEEP

    6144:Tc4ggstOWNGtTEuAvVe7eMLdW6Pv8+Z69v4d0TzDjtsLQrMnpKk+TT6va:Tc4gntlaQuAvVixPPv8+Z69QOTPhsLvK

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 23 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\749354f8c6f54750b9ece204494d6281fbab361ba448576a7dae67f37bfd9ffe.exe
    "C:\Users\Admin\AppData\Local\Temp\749354f8c6f54750b9ece204494d6281fbab361ba448576a7dae67f37bfd9ffe.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2472
    • C:\Users\Admin\AppData\Local\Temp\u1wo.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u1wo.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:4588
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4588 -s 2372
        3⤵
        • Program crash
        PID:2348
    • C:\Users\Admin\AppData\Local\Temp\u1wo.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u1wo.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:3960
      • 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:4420
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2472 -s 984
      2⤵
      • Program crash
      PID:1916
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2472 -ip 2472
    1⤵
      PID:4968
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 4588 -ip 4588
      1⤵
        PID:3908

      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

        2cdc6dca226e9e60337a89214550e9c7

        SHA1

        8348716332b42642cf9d6f21d4b190380e882933

        SHA256

        b403d376eb309f7afe379b3db7b34c103b1caf1cfa118bd5d0946900c257e0cb

        SHA512

        b73f133fd5e809c49be274bbe2ab81b6bb8086bfe1af0c7f87dfd7aafdc7fdd6cce29a04fd02b1a22eac2ae6a5e208d5c705229b5816d5e3a4ec360a8c1d607f

      • C:\Users\Admin\AppData\Local\Temp\iolo\dm\ioloDMLog.txt

        Filesize

        3KB

        MD5

        c100e4b39e8f1f10cc09de5988b6541b

        SHA1

        65d311ace5b518b8a154ad9d43df665b33dc0f41

        SHA256

        e5e77c9bc3dde1f8ea3c49ea9fe4b8af1483f4bc75b0f0a898f7c63cfdee1484

        SHA512

        388a43593e3403c4afff1693370e7a60fb777c20fa05c6ae863a8a6239d93552a81ef5d6c116e4aeb08dd9e0cafb171f20570e43d513f737242a0015a9e6e8ef

      • C:\Users\Admin\AppData\Local\Temp\u1wo.0.exe

        Filesize

        231KB

        MD5

        eabfdaca74d258561209e731259bf818

        SHA1

        5bf324d6792cef6cb1663c88002480029aa8c1a8

        SHA256

        8122ab1285665bacd89fa9865281315c62b94eb10910927283424ff283f5fb1b

        SHA512

        42277497bb262f951f066b1e069c57173832b5cc7697111c80b1a5f95f769fed4a3cc6ff4d96d8ad78f60690fec2a1a7497d8f0b24a6971fd70a67ac63f32ef3

      • C:\Users\Admin\AppData\Local\Temp\u1wo.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/2472-28-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/2472-27-0x0000000000400000-0x0000000002599000-memory.dmp

        Filesize

        33.6MB

      • memory/2472-2-0x0000000002600000-0x0000000002700000-memory.dmp

        Filesize

        1024KB

      • memory/2472-1-0x0000000000400000-0x0000000002599000-memory.dmp

        Filesize

        33.6MB

      • memory/2472-3-0x00000000041D0000-0x000000000423C000-memory.dmp

        Filesize

        432KB

      • memory/2472-4-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/3960-49-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/3960-112-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4420-146-0x0000029970740000-0x0000029970778000-memory.dmp

        Filesize

        224KB

      • memory/4420-143-0x000002996C3A0000-0x000002996C6A0000-memory.dmp

        Filesize

        3.0MB

      • memory/4420-129-0x000002996C080000-0x000002996C18A000-memory.dmp

        Filesize

        1.0MB

      • memory/4420-130-0x0000029968CE0000-0x0000029968CF0000-memory.dmp

        Filesize

        64KB

      • memory/4420-131-0x000002996A6B0000-0x000002996A6BC000-memory.dmp

        Filesize

        48KB

      • memory/4420-132-0x000002996A690000-0x000002996A6A4000-memory.dmp

        Filesize

        80KB

      • memory/4420-133-0x000002996BE40000-0x000002996BE64000-memory.dmp

        Filesize

        144KB

      • memory/4420-134-0x0000029968D40000-0x0000029968D4A000-memory.dmp

        Filesize

        40KB

      • memory/4420-135-0x000002996BEC0000-0x000002996BF72000-memory.dmp

        Filesize

        712KB

      • memory/4420-136-0x000002996BE80000-0x000002996BEAA000-memory.dmp

        Filesize

        168KB

      • memory/4420-137-0x000002996C320000-0x000002996C370000-memory.dmp

        Filesize

        320KB

      • memory/4420-138-0x000002996C370000-0x000002996C392000-memory.dmp

        Filesize

        136KB

      • memory/4420-139-0x000002996A6D0000-0x000002996A6DA000-memory.dmp

        Filesize

        40KB

      • memory/4420-157-0x0000029971920000-0x000002997193E000-memory.dmp

        Filesize

        120KB

      • memory/4420-145-0x0000029970030000-0x0000029970038000-memory.dmp

        Filesize

        32KB

      • memory/4420-127-0x00000299650B0000-0x00000299688E4000-memory.dmp

        Filesize

        56.2MB

      • memory/4420-147-0x0000029970700000-0x000002997070E000-memory.dmp

        Filesize

        56KB

      • memory/4420-148-0x0000029970720000-0x0000029970728000-memory.dmp

        Filesize

        32KB

      • memory/4420-149-0x00000299707C0000-0x00000299707CA000-memory.dmp

        Filesize

        40KB

      • memory/4420-150-0x0000029971870000-0x00000299718D2000-memory.dmp

        Filesize

        392KB

      • memory/4420-151-0x00000299718D0000-0x00000299718F2000-memory.dmp

        Filesize

        136KB

      • memory/4420-152-0x0000029971E20000-0x0000029972348000-memory.dmp

        Filesize

        5.2MB

      • memory/4420-155-0x00000299715E0000-0x00000299715EC000-memory.dmp

        Filesize

        48KB

      • memory/4420-156-0x00000299719C0000-0x0000029971A36000-memory.dmp

        Filesize

        472KB

      • memory/4588-128-0x0000000000400000-0x0000000002576000-memory.dmp

        Filesize

        33.5MB

      • memory/4588-50-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/4588-169-0x0000000000400000-0x0000000002576000-memory.dmp

        Filesize

        33.5MB