Analysis

  • max time kernel
    141s
  • max time network
    146s
  • 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 09:22

General

  • Target

    f3ad4e35b27e85807a97799bbf5aa34bfe32d5f6e3e4e248eeda21cf01ab064c.exe

  • Size

    416KB

  • MD5

    da2cdea50e40f357b2f8fc5f00843c7e

  • SHA1

    4d93fa46c5f117ba0765ae46a9ac0ed8e3a7e0eb

  • SHA256

    f3ad4e35b27e85807a97799bbf5aa34bfe32d5f6e3e4e248eeda21cf01ab064c

  • SHA512

    fb94987681963ed18d4d395a52a684c7fd0610eb03e0ecfa1f9a807d1b3fd534a6126cfe2a5fec63660561af64f683bd604a7a039557ed1aa4e51f391fecaed7

  • SSDEEP

    6144:Is39oglCbCdvUevlzUusNjv80uIGK87Veb4Ow93mKWLZmuMiq:Is3+Ypvl5cv80FGKkOwStmuq

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 28 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\f3ad4e35b27e85807a97799bbf5aa34bfe32d5f6e3e4e248eeda21cf01ab064c.exe
    "C:\Users\Admin\AppData\Local\Temp\f3ad4e35b27e85807a97799bbf5aa34bfe32d5f6e3e4e248eeda21cf01ab064c.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3432
    • C:\Users\Admin\AppData\Local\Temp\u2nc.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u2nc.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:1676
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1676 -s 2364
        3⤵
        • Program crash
        PID:1440
    • C:\Users\Admin\AppData\Local\Temp\u2nc.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u2nc.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:3392
      • 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:2692
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3432 -s 1524
      2⤵
      • Program crash
      PID:3968
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3432 -ip 3432
    1⤵
      PID:3388
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1676 -ip 1676
      1⤵
        PID:4276

      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

        4c61d999d013c9e6c73c9ac6b98b9bfe

        SHA1

        6965cc3532f3ccce1f07df3a070a94b39eff2750

        SHA256

        58e43af6d5c6229eae7b6c01bc66ba1d9c44af66eb6c48379771e58b39c66612

        SHA512

        63095a6d8bb21ec93821aea40e5a0884c5e81fae874f14d3f922f3ac827bfa4c0d6fadfd32d8690087fbe221cccdb63a6fffada8be99f96c3aa9a5a01dd2c036

      • C:\Users\Admin\AppData\Local\Temp\u2nc.0.exe

        Filesize

        274KB

        MD5

        16720a0516a6e23f11a66b0b8066e5a6

        SHA1

        edf8d8c0eead559891856cf4a962705620dcb10e

        SHA256

        949fb9d3d6ec5bb789ec5bef973e12f4500365137f4c8b2e285b3dc6e9ac88f2

        SHA512

        c49dc5ea54c32ae5c5ff29ab2b997b9c930e9ce7d86d52993afd17e9816e73556e1c1e57b4e27f1db99442b414ebf22adb9966f7cca3a401ca6c7f85e9d0002e

      • C:\Users\Admin\AppData\Local\Temp\u2nc.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/1676-53-0x0000000000400000-0x0000000002B02000-memory.dmp

        Filesize

        39.0MB

      • memory/1676-161-0x0000000000400000-0x0000000002B02000-memory.dmp

        Filesize

        39.0MB

      • memory/1676-143-0x0000000000400000-0x0000000002B02000-memory.dmp

        Filesize

        39.0MB

      • memory/1676-63-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/2692-136-0x0000024D4D0D0000-0x0000024D4D0E0000-memory.dmp

        Filesize

        64KB

      • memory/2692-145-0x0000024D673F0000-0x0000024D67412000-memory.dmp

        Filesize

        136KB

      • memory/2692-166-0x0000024D67E40000-0x0000024D67E5E000-memory.dmp

        Filesize

        120KB

      • memory/2692-165-0x0000024D6CB10000-0x0000024D6CB86000-memory.dmp

        Filesize

        472KB

      • memory/2692-103-0x0000024D49430000-0x0000024D4CC64000-memory.dmp

        Filesize

        56.2MB

      • memory/2692-164-0x0000024D67B80000-0x0000024D67B8C000-memory.dmp

        Filesize

        48KB

      • memory/2692-160-0x0000024D6D320000-0x0000024D6D848000-memory.dmp

        Filesize

        5.2MB

      • memory/2692-157-0x0000024D6CD70000-0x0000024D6CD7A000-memory.dmp

        Filesize

        40KB

      • memory/2692-131-0x0000024D67530000-0x0000024D6763A000-memory.dmp

        Filesize

        1.0MB

      • memory/2692-137-0x0000024D4EA20000-0x0000024D4EA2C000-memory.dmp

        Filesize

        48KB

      • memory/2692-158-0x0000024D6CD90000-0x0000024D6CDF2000-memory.dmp

        Filesize

        392KB

      • memory/2692-138-0x0000024D4D0E0000-0x0000024D4D0F4000-memory.dmp

        Filesize

        80KB

      • memory/2692-139-0x0000024D67360000-0x0000024D67384000-memory.dmp

        Filesize

        144KB

      • memory/2692-140-0x0000024D4D0B0000-0x0000024D4D0BA000-memory.dmp

        Filesize

        40KB

      • memory/2692-141-0x0000024D67380000-0x0000024D673AA000-memory.dmp

        Filesize

        168KB

      • memory/2692-142-0x0000024D67780000-0x0000024D67832000-memory.dmp

        Filesize

        712KB

      • memory/2692-144-0x0000024D67830000-0x0000024D67880000-memory.dmp

        Filesize

        320KB

      • memory/2692-159-0x0000024D6CAF0000-0x0000024D6CB12000-memory.dmp

        Filesize

        136KB

      • memory/2692-154-0x0000024D6BBE0000-0x0000024D6BBEE000-memory.dmp

        Filesize

        56KB

      • memory/2692-146-0x0000024D4D0C0000-0x0000024D4D0CA000-memory.dmp

        Filesize

        40KB

      • memory/2692-150-0x0000024D67880000-0x0000024D67B80000-memory.dmp

        Filesize

        3.0MB

      • memory/2692-152-0x0000024D6B510000-0x0000024D6B518000-memory.dmp

        Filesize

        32KB

      • memory/2692-153-0x0000024D6BC20000-0x0000024D6BC58000-memory.dmp

        Filesize

        224KB

      • memory/2692-155-0x0000024D6BC00000-0x0000024D6BC08000-memory.dmp

        Filesize

        32KB

      • memory/3392-51-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/3392-96-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/3432-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/3432-1-0x0000000002B70000-0x0000000002C70000-memory.dmp

        Filesize

        1024KB

      • memory/3432-5-0x0000000000400000-0x0000000002B25000-memory.dmp

        Filesize

        39.1MB

      • memory/3432-30-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/3432-2-0x00000000047C0000-0x000000000482C000-memory.dmp

        Filesize

        432KB

      • memory/3432-29-0x00000000047C0000-0x000000000482C000-memory.dmp

        Filesize

        432KB

      • memory/3432-28-0x0000000000400000-0x0000000002B25000-memory.dmp

        Filesize

        39.1MB