Analysis

  • max time kernel
    133s
  • max time network
    129s
  • 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 22:06

General

  • Target

    58d2b454db2bf30b1101655231fd9e61b7b4a00c3f2b583f4422f8d541b1c91e.exe

  • Size

    423KB

  • MD5

    e0d7b28dd6347e307c7f8a11596a6dfc

  • SHA1

    a08fd1ef59115feefeba7c86e0883a7a598a945e

  • SHA256

    58d2b454db2bf30b1101655231fd9e61b7b4a00c3f2b583f4422f8d541b1c91e

  • SHA512

    a90f9b7b4fb9b280c59b116c2a4ae4142cc921318d661ca9cf2192e55c0421999eef3f853bc8deaafd99b4368879e656f384dd587be16a5f371412887d9b589a

  • SSDEEP

    12288:U9Ez/mnZVKQ6Bci6D+GYFBBeHJYaxpYkwa:oHVKQ6d6qGYFB8lLYkwa

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\58d2b454db2bf30b1101655231fd9e61b7b4a00c3f2b583f4422f8d541b1c91e.exe
    "C:\Users\Admin\AppData\Local\Temp\58d2b454db2bf30b1101655231fd9e61b7b4a00c3f2b583f4422f8d541b1c91e.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4808
    • C:\Users\Admin\AppData\Local\Temp\u3pk.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u3pk.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:4464
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4464 -s 2480
        3⤵
        • Program crash
        PID:3932
    • C:\Users\Admin\AppData\Local\Temp\u3pk.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u3pk.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:2748
      • 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:4692
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4808 -s 984
      2⤵
      • Program crash
      PID:508
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4808 -ip 4808
    1⤵
      PID:4100
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 4464 -ip 4464
      1⤵
        PID:1148

      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

        f5b1e750e5c1594c4ae62f3f65f8f60e

        SHA1

        c7abe4490b1a20c5482c1b74fa9b8340c1d5e6b6

        SHA256

        d739ee2c4366cb77650ab130499defd0638e7c2a4f26a656558368885e59cea8

        SHA512

        f26d95d3e8c51f16fc071b897980e946a7236479be928e08a373ba55ac76db226fa940cead23fb4cc68eea07ee5ae313ab736964a8185436952fe00713312c5a

      • C:\Users\Admin\AppData\Local\Temp\u3pk.0.exe

        Filesize

        282KB

        MD5

        f72e01dfb65e6409cb0fc611e466e9d5

        SHA1

        e3d9f9d5e531ea1537bbecbf8064c5772a3c4a26

        SHA256

        7eec5c68ccc964cae08684c73b65a0427623454286b253b4ee4453dc1aa93bbf

        SHA512

        7f47b5e7d997d923ca3d2a481bd8754b01c444c3be284b01e8577e58632bf1b69db87927e57079999e9ffc4dc1d50c45b68a5ce3b4ad58bdcf55d48acb9a87c1

      • C:\Users\Admin\AppData\Local\Temp\u3pk.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/2748-129-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/2748-117-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4464-14-0x0000000000400000-0x0000000001A10000-memory.dmp

        Filesize

        22.1MB

      • memory/4464-116-0x0000000000400000-0x0000000001A10000-memory.dmp

        Filesize

        22.1MB

      • memory/4464-36-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/4464-13-0x0000000000400000-0x0000000001A10000-memory.dmp

        Filesize

        22.1MB

      • memory/4464-171-0x0000000000400000-0x0000000001A10000-memory.dmp

        Filesize

        22.1MB

      • memory/4692-133-0x000001C0E7E10000-0x000001C0E7E1C000-memory.dmp

        Filesize

        48KB

      • memory/4692-141-0x000001C0E80E0000-0x000001C0E80EA000-memory.dmp

        Filesize

        40KB

      • memory/4692-160-0x000001C0ED560000-0x000001C0ED57E000-memory.dmp

        Filesize

        120KB

      • memory/4692-158-0x000001C0ED600000-0x000001C0ED676000-memory.dmp

        Filesize

        472KB

      • memory/4692-130-0x000001C0C9E40000-0x000001C0CD674000-memory.dmp

        Filesize

        56.2MB

      • memory/4692-131-0x000001C0E7CF0000-0x000001C0E7DFA000-memory.dmp

        Filesize

        1.0MB

      • memory/4692-132-0x000001C0E7BD0000-0x000001C0E7BE0000-memory.dmp

        Filesize

        64KB

      • memory/4692-157-0x000001C0ED520000-0x000001C0ED52C000-memory.dmp

        Filesize

        48KB

      • memory/4692-134-0x000001C0E7E00000-0x000001C0E7E14000-memory.dmp

        Filesize

        80KB

      • memory/4692-135-0x000001C0E7E20000-0x000001C0E7E44000-memory.dmp

        Filesize

        144KB

      • memory/4692-136-0x000001C0E7E40000-0x000001C0E7E4A000-memory.dmp

        Filesize

        40KB

      • memory/4692-137-0x000001C0E80F0000-0x000001C0E811A000-memory.dmp

        Filesize

        168KB

      • memory/4692-138-0x000001C0E8130000-0x000001C0E81E2000-memory.dmp

        Filesize

        712KB

      • memory/4692-139-0x000001C0E8230000-0x000001C0E8280000-memory.dmp

        Filesize

        320KB

      • memory/4692-140-0x000001C0E8280000-0x000001C0E82A2000-memory.dmp

        Filesize

        136KB

      • memory/4692-154-0x000001C0EDD30000-0x000001C0EE258000-memory.dmp

        Filesize

        5.2MB

      • memory/4692-145-0x000001C0E82B0000-0x000001C0E85B0000-memory.dmp

        Filesize

        3.0MB

      • memory/4692-147-0x000001C0ECCD0000-0x000001C0ECCD8000-memory.dmp

        Filesize

        32KB

      • memory/4692-148-0x000001C0EC610000-0x000001C0EC648000-memory.dmp

        Filesize

        224KB

      • memory/4692-149-0x000001C0EC5E0000-0x000001C0EC5EE000-memory.dmp

        Filesize

        56KB

      • memory/4692-150-0x000001C0EC600000-0x000001C0EC608000-memory.dmp

        Filesize

        32KB

      • memory/4692-151-0x000001C0ED780000-0x000001C0ED78A000-memory.dmp

        Filesize

        40KB

      • memory/4692-152-0x000001C0ED7A0000-0x000001C0ED802000-memory.dmp

        Filesize

        392KB

      • memory/4692-153-0x000001C0ED500000-0x000001C0ED522000-memory.dmp

        Filesize

        136KB

      • memory/4808-29-0x0000000000400000-0x0000000001A34000-memory.dmp

        Filesize

        22.2MB

      • memory/4808-1-0x0000000001AE0000-0x0000000001BE0000-memory.dmp

        Filesize

        1024KB

      • memory/4808-31-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/4808-30-0x0000000003650000-0x00000000036BC000-memory.dmp

        Filesize

        432KB

      • memory/4808-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/4808-2-0x0000000003650000-0x00000000036BC000-memory.dmp

        Filesize

        432KB