Analysis

  • max time kernel
    148s
  • max time network
    155s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240319-en
  • resource tags

    arch:x64arch:x86image:win11-20240319-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    07-04-2024 16:59

General

  • Target

    711255b88ff35cdd174c920672c0ebc2da771f5ba47b7afc1e10666e6bd351ee.exe

  • Size

    454KB

  • MD5

    4492c0fed06f47b4e844633e7b56293c

  • SHA1

    c072235414b249c89d2fe05691c2c0af36e54bda

  • SHA256

    711255b88ff35cdd174c920672c0ebc2da771f5ba47b7afc1e10666e6bd351ee

  • SHA512

    bff79c233a9e7459cdd10c5814e511369fa6e3f737ded6ea4ebacbb51fdc012c1bfa01f30e38125db8ea15b809fe6419d8af7b9d6305c7400ae64ae2bfb889b8

  • SSDEEP

    12288:2iB9S1zi63i/LYjQogh7cz3EP4Fn4IWneiS6U:2irSI63iTYkogh4DlKrU

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.209

Attributes
  • url_path

    /3cd2b41cbde8fc9c.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\711255b88ff35cdd174c920672c0ebc2da771f5ba47b7afc1e10666e6bd351ee.exe
    "C:\Users\Admin\AppData\Local\Temp\711255b88ff35cdd174c920672c0ebc2da771f5ba47b7afc1e10666e6bd351ee.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1384
    • C:\Users\Admin\AppData\Local\Temp\u12g.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u12g.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:4280
    • C:\Users\Admin\AppData\Local\Temp\u12g.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u12g.1.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:4568
      • 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:3344
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1384 -s 1508
      2⤵
      • Program crash
      PID:3052
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1384 -ip 1384
    1⤵
      PID:2632

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • 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\u12g.0.exe

      Filesize

      312KB

      MD5

      12d374f5d55dc469aee06c9cd50e9e61

      SHA1

      8e3af58dcf5c3da96b4c984d94b2ce19c6fef1eb

      SHA256

      fd91ac27792d0f75969dbba3bfa91ec6aa025bdf4b3f2e5e35bc7b22551e14d7

      SHA512

      f6b56036a0383e17bde7e6563b0a1316bd650ec6e1836584e72e647b1de22728602b180e885e10c6dc9390aa7d12bdfa78574781466a2c5301674317143e5408

    • C:\Users\Admin\AppData\Local\Temp\u12g.1.exe

      Filesize

      4.6MB

      MD5

      397926927bca55be4a77839b1c44de6e

      SHA1

      e10f3434ef3021c399dbba047832f02b3c898dbd

      SHA256

      4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

      SHA512

      cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

    • memory/1384-2-0x00000000049F0000-0x0000000004A5C000-memory.dmp

      Filesize

      432KB

    • memory/1384-3-0x0000000000400000-0x0000000002B9C000-memory.dmp

      Filesize

      39.6MB

    • memory/1384-4-0x0000000000400000-0x0000000002B9C000-memory.dmp

      Filesize

      39.6MB

    • memory/1384-1-0x0000000002D90000-0x0000000002E90000-memory.dmp

      Filesize

      1024KB

    • memory/1384-17-0x0000000000400000-0x0000000002B9C000-memory.dmp

      Filesize

      39.6MB

    • memory/1384-18-0x00000000049F0000-0x0000000004A5C000-memory.dmp

      Filesize

      432KB

    • memory/1384-87-0x0000000000400000-0x0000000002B9C000-memory.dmp

      Filesize

      39.6MB

    • memory/1384-58-0x0000000002D90000-0x0000000002E90000-memory.dmp

      Filesize

      1024KB

    • memory/3344-176-0x00000225261A0000-0x00000225261B0000-memory.dmp

      Filesize

      64KB

    • memory/3344-142-0x000002250D7F0000-0x000002250D7FA000-memory.dmp

      Filesize

      40KB

    • memory/3344-194-0x00000225261A0000-0x00000225261B0000-memory.dmp

      Filesize

      64KB

    • memory/3344-193-0x00000225261A0000-0x00000225261B0000-memory.dmp

      Filesize

      64KB

    • memory/3344-192-0x00000225261A0000-0x00000225261B0000-memory.dmp

      Filesize

      64KB

    • memory/3344-190-0x00000225261A0000-0x00000225261B0000-memory.dmp

      Filesize

      64KB

    • memory/3344-189-0x00007FFCE4960000-0x00007FFCE5422000-memory.dmp

      Filesize

      10.8MB

    • memory/3344-185-0x000002252B380000-0x000002252B39E000-memory.dmp

      Filesize

      120KB

    • memory/3344-121-0x00007FFCE4960000-0x00007FFCE5422000-memory.dmp

      Filesize

      10.8MB

    • memory/3344-122-0x00000225082A0000-0x000002250BB98000-memory.dmp

      Filesize

      57.0MB

    • memory/3344-184-0x000002252B3B0000-0x000002252B3D2000-memory.dmp

      Filesize

      136KB

    • memory/3344-130-0x00000225261A0000-0x00000225261B0000-memory.dmp

      Filesize

      64KB

    • memory/3344-131-0x0000022526310000-0x0000022526420000-memory.dmp

      Filesize

      1.1MB

    • memory/3344-132-0x000002250D810000-0x000002250D820000-memory.dmp

      Filesize

      64KB

    • memory/3344-133-0x000002250D830000-0x000002250D83C000-memory.dmp

      Filesize

      48KB

    • memory/3344-134-0x000002250D820000-0x000002250D834000-memory.dmp

      Filesize

      80KB

    • memory/3344-135-0x0000022526420000-0x0000022526444000-memory.dmp

      Filesize

      144KB

    • memory/3344-136-0x0000022526440000-0x000002252644A000-memory.dmp

      Filesize

      40KB

    • memory/3344-137-0x00000225265D0000-0x0000022526682000-memory.dmp

      Filesize

      712KB

    • memory/3344-139-0x00000225266B0000-0x000002252672A000-memory.dmp

      Filesize

      488KB

    • memory/3344-140-0x0000022526730000-0x0000022526792000-memory.dmp

      Filesize

      392KB

    • memory/3344-138-0x0000022526680000-0x00000225266AA000-memory.dmp

      Filesize

      168KB

    • memory/3344-141-0x0000022526810000-0x0000022526886000-memory.dmp

      Filesize

      472KB

    • memory/3344-183-0x000002252B300000-0x000002252B30C000-memory.dmp

      Filesize

      48KB

    • memory/3344-146-0x0000022526890000-0x0000022526B90000-memory.dmp

      Filesize

      3.0MB

    • memory/3344-182-0x000002252B330000-0x000002252B380000-memory.dmp

      Filesize

      320KB

    • memory/3344-179-0x000002252BA80000-0x000002252BFA8000-memory.dmp

      Filesize

      5.2MB

    • memory/3344-171-0x00000225261A0000-0x00000225261B0000-memory.dmp

      Filesize

      64KB

    • memory/3344-172-0x000002252B2A0000-0x000002252B2A8000-memory.dmp

      Filesize

      32KB

    • memory/3344-174-0x000002252AC20000-0x000002252AC58000-memory.dmp

      Filesize

      224KB

    • memory/3344-178-0x000002252B2C0000-0x000002252B2E2000-memory.dmp

      Filesize

      136KB

    • memory/3344-175-0x000002252ABF0000-0x000002252ABFE000-memory.dmp

      Filesize

      56KB

    • memory/3344-173-0x00000225261A0000-0x00000225261B0000-memory.dmp

      Filesize

      64KB

    • memory/3344-177-0x000002252B540000-0x000002252B54A000-memory.dmp

      Filesize

      40KB

    • memory/4280-186-0x0000000000400000-0x0000000002B79000-memory.dmp

      Filesize

      39.5MB

    • memory/4280-15-0x0000000002D30000-0x0000000002D57000-memory.dmp

      Filesize

      156KB

    • memory/4280-16-0x0000000000400000-0x0000000002B79000-memory.dmp

      Filesize

      39.5MB

    • memory/4280-63-0x0000000002D60000-0x0000000002E60000-memory.dmp

      Filesize

      1024KB

    • memory/4280-126-0x0000000000400000-0x0000000002B79000-memory.dmp

      Filesize

      39.5MB

    • memory/4280-14-0x0000000002D60000-0x0000000002E60000-memory.dmp

      Filesize

      1024KB

    • memory/4280-107-0x0000000000400000-0x0000000002B79000-memory.dmp

      Filesize

      39.5MB

    • memory/4280-19-0x0000000061E00000-0x0000000061EF3000-memory.dmp

      Filesize

      972KB

    • memory/4280-59-0x0000000000400000-0x0000000002B79000-memory.dmp

      Filesize

      39.5MB

    • memory/4280-203-0x0000000000400000-0x0000000002B79000-memory.dmp

      Filesize

      39.5MB

    • memory/4568-120-0x0000000000400000-0x00000000008AD000-memory.dmp

      Filesize

      4.7MB

    • memory/4568-104-0x0000000000400000-0x00000000008AD000-memory.dmp

      Filesize

      4.7MB

    • memory/4568-78-0x0000000002760000-0x0000000002761000-memory.dmp

      Filesize

      4KB