Analysis

  • max time kernel
    127s
  • max time network
    129s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    11-05-2024 07:39

General

  • Target

    59bf9ddea2af2b96e9817aaa4e514cfa417a26497153297600998d79b29174de.exe

  • Size

    387KB

  • MD5

    d06d5402f4b6370c23b0a09e958194a4

  • SHA1

    bbf072e254c7fa2283bd8a5f4654a46ec1caaf81

  • SHA256

    59bf9ddea2af2b96e9817aaa4e514cfa417a26497153297600998d79b29174de

  • SHA512

    2909963bb8b45c88d4d7095846740234f48435cad9fa1a313030728792d5d5a0309b30e3958b7c6f0d41f58c104b1483b89270bcca825dd1df98f59c65d00cce

  • SSDEEP

    6144:mcLRRKWEpSMnqkuAExWH/Tc8tmfs9ooBXrtjqaIFwTDiq:mcLRRB+Se1JExWfLmfsCG7HIWOq

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
  • 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 1 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\59bf9ddea2af2b96e9817aaa4e514cfa417a26497153297600998d79b29174de.exe
    "C:\Users\Admin\AppData\Local\Temp\59bf9ddea2af2b96e9817aaa4e514cfa417a26497153297600998d79b29174de.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4964
    • C:\Users\Admin\AppData\Local\Temp\u3tw.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u3tw.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:2688
    • C:\Users\Admin\AppData\Local\Temp\u3tw.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u3tw.1.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:4992
      • 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:3628
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4964 -s 1520
      2⤵
      • Program crash
      PID:1140
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4964 -ip 4964
    1⤵
      PID:1364

    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\u3tw.0.exe

      Filesize

      245KB

      MD5

      33bc221961c8365ec06fe86a4ab76709

      SHA1

      af930ef0dbd96b4fb0c6ecd72ea5fe2fd77268f8

      SHA256

      2874b873e12bcdfcf0a37708512e21637e38e5f5b9a2bf0c3b34f72d74c05708

      SHA512

      957e92d7418dca60a34cdc8dd542a587003b8181be6eb19272a5e4065aa61fa43655f6cbaebc31ce4a778fcc0e4430993a6f35db73cc7b0d7140042ba835082e

    • C:\Users\Admin\AppData\Local\Temp\u3tw.1.exe

      Filesize

      4.6MB

      MD5

      397926927bca55be4a77839b1c44de6e

      SHA1

      e10f3434ef3021c399dbba047832f02b3c898dbd

      SHA256

      4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

      SHA512

      cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

    • memory/2688-34-0x0000000061E00000-0x0000000061EF3000-memory.dmp

      Filesize

      972KB

    • memory/2688-137-0x0000000000400000-0x0000000002579000-memory.dmp

      Filesize

      33.5MB

    • memory/2688-114-0x0000000000400000-0x0000000002579000-memory.dmp

      Filesize

      33.5MB

    • memory/3628-142-0x000001F61E8F0000-0x000001F61E904000-memory.dmp

      Filesize

      80KB

    • memory/3628-146-0x000001F6375F0000-0x000001F63761A000-memory.dmp

      Filesize

      168KB

    • memory/3628-167-0x000001F63C1C0000-0x000001F63C1DE000-memory.dmp

      Filesize

      120KB

    • memory/3628-166-0x000001F63C260000-0x000001F63C2D6000-memory.dmp

      Filesize

      472KB

    • memory/3628-165-0x000001F63C180000-0x000001F63C18C000-memory.dmp

      Filesize

      48KB

    • memory/3628-162-0x000001F63C990000-0x000001F63CEB8000-memory.dmp

      Filesize

      5.2MB

    • memory/3628-160-0x000001F63C400000-0x000001F63C462000-memory.dmp

      Filesize

      392KB

    • memory/3628-161-0x000001F63C160000-0x000001F63C182000-memory.dmp

      Filesize

      136KB

    • memory/3628-138-0x000001F6192E0000-0x000001F61CB14000-memory.dmp

      Filesize

      56.2MB

    • memory/3628-139-0x000001F637240000-0x000001F63734A000-memory.dmp

      Filesize

      1.0MB

    • memory/3628-140-0x000001F61E8D0000-0x000001F61E8E0000-memory.dmp

      Filesize

      64KB

    • memory/3628-141-0x000001F637210000-0x000001F63721C000-memory.dmp

      Filesize

      48KB

    • memory/3628-159-0x000001F63C3E0000-0x000001F63C3EA000-memory.dmp

      Filesize

      40KB

    • memory/3628-143-0x000001F637390000-0x000001F6373B4000-memory.dmp

      Filesize

      144KB

    • memory/3628-144-0x000001F637510000-0x000001F63751A000-memory.dmp

      Filesize

      40KB

    • memory/3628-158-0x000001F63BA70000-0x000001F63BA78000-memory.dmp

      Filesize

      32KB

    • memory/3628-145-0x000001F637540000-0x000001F6375F2000-memory.dmp

      Filesize

      712KB

    • memory/3628-147-0x000001F637670000-0x000001F6376C0000-memory.dmp

      Filesize

      320KB

    • memory/3628-148-0x000001F6376C0000-0x000001F6376E2000-memory.dmp

      Filesize

      136KB

    • memory/3628-149-0x000001F6371F0000-0x000001F6371FA000-memory.dmp

      Filesize

      40KB

    • memory/3628-153-0x000001F6376F0000-0x000001F6379F0000-memory.dmp

      Filesize

      3.0MB

    • memory/3628-155-0x000001F63B380000-0x000001F63B388000-memory.dmp

      Filesize

      32KB

    • memory/3628-156-0x000001F63BA90000-0x000001F63BAC8000-memory.dmp

      Filesize

      224KB

    • memory/3628-157-0x000001F63BA50000-0x000001F63BA5E000-memory.dmp

      Filesize

      56KB

    • memory/4964-28-0x0000000000400000-0x000000000046F000-memory.dmp

      Filesize

      444KB

    • memory/4964-1-0x00000000026F0000-0x00000000027F0000-memory.dmp

      Filesize

      1024KB

    • memory/4964-2-0x00000000042B0000-0x000000000431C000-memory.dmp

      Filesize

      432KB

    • memory/4964-3-0x0000000000400000-0x000000000046F000-memory.dmp

      Filesize

      444KB

    • memory/4964-27-0x00000000042B0000-0x000000000431C000-memory.dmp

      Filesize

      432KB

    • memory/4964-26-0x0000000000400000-0x000000000259D000-memory.dmp

      Filesize

      33.6MB

    • memory/4992-136-0x0000000000400000-0x00000000008AD000-memory.dmp

      Filesize

      4.7MB

    • memory/4992-135-0x0000000000400000-0x00000000008AD000-memory.dmp

      Filesize

      4.7MB