Analysis

  • max time kernel
    146s
  • max time network
    151s
  • 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, 07:30

General

  • Target

    3b8be42eb0921c387cdb411178709ce1a93ddd436296bb790405ad106160ad8d.exe

  • Size

    387KB

  • MD5

    9b71f2eb78a6d903b02b1d1f9c6baab9

  • SHA1

    041e7f6e9fab5fc8ab30a1e2d4b7e8afbc9adc15

  • SHA256

    3b8be42eb0921c387cdb411178709ce1a93ddd436296bb790405ad106160ad8d

  • SHA512

    bfcbb254fcfcb0f791993a5b2b0696cc1f67bc6bd12988db924e452ccf1c8f479f024a362a82481f89e4341051d6ba8a3e693765b0dc14a93c972f247676cda8

  • SSDEEP

    6144:mcLRRKWEpSMnqkuAExWH/Tc8tmfs9ooBXrtjqaIFwTDis:mcLRRB+Se1JExWfLmfsCG7HIWOs

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\3b8be42eb0921c387cdb411178709ce1a93ddd436296bb790405ad106160ad8d.exe
    "C:\Users\Admin\AppData\Local\Temp\3b8be42eb0921c387cdb411178709ce1a93ddd436296bb790405ad106160ad8d.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2624
    • C:\Users\Admin\AppData\Local\Temp\u20w.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u20w.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:2064
    • C:\Users\Admin\AppData\Local\Temp\u20w.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u20w.1.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:3048
      • 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:4172
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2624 -s 1528
      2⤵
      • Program crash
      PID:5072
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2624 -ip 2624
    1⤵
      PID:2460

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    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\u20w.0.exe

      Filesize

      245KB

      MD5

      33bc221961c8365ec06fe86a4ab76709

      SHA1

      af930ef0dbd96b4fb0c6ecd72ea5fe2fd77268f8

      SHA256

      2874b873e12bcdfcf0a37708512e21637e38e5f5b9a2bf0c3b34f72d74c05708

      SHA512

      957e92d7418dca60a34cdc8dd542a587003b8181be6eb19272a5e4065aa61fa43655f6cbaebc31ce4a778fcc0e4430993a6f35db73cc7b0d7140042ba835082e

    • C:\Users\Admin\AppData\Local\Temp\u20w.1.exe

      Filesize

      4.6MB

      MD5

      397926927bca55be4a77839b1c44de6e

      SHA1

      e10f3434ef3021c399dbba047832f02b3c898dbd

      SHA256

      4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

      SHA512

      cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

    • memory/2064-34-0x0000000061E00000-0x0000000061EF3000-memory.dmp

      Filesize

      972KB

    • memory/2064-85-0x0000000000400000-0x0000000002579000-memory.dmp

      Filesize

      33.5MB

    • memory/2064-148-0x0000000000400000-0x0000000002579000-memory.dmp

      Filesize

      33.5MB

    • memory/2624-33-0x0000000000400000-0x000000000046F000-memory.dmp

      Filesize

      444KB

    • memory/2624-31-0x0000000000400000-0x000000000259D000-memory.dmp

      Filesize

      33.6MB

    • memory/2624-2-0x00000000042E0000-0x000000000434C000-memory.dmp

      Filesize

      432KB

    • memory/2624-32-0x00000000042E0000-0x000000000434C000-memory.dmp

      Filesize

      432KB

    • memory/2624-3-0x0000000000400000-0x000000000046F000-memory.dmp

      Filesize

      444KB

    • memory/2624-1-0x0000000002730000-0x0000000002830000-memory.dmp

      Filesize

      1024KB

    • memory/3048-98-0x0000000000400000-0x00000000008AD000-memory.dmp

      Filesize

      4.7MB

    • memory/3048-104-0x0000000000400000-0x00000000008AD000-memory.dmp

      Filesize

      4.7MB

    • memory/4172-142-0x000002A8C07B0000-0x000002A8C07D4000-memory.dmp

      Filesize

      144KB

    • memory/4172-108-0x000002A8A26F0000-0x000002A8A5F24000-memory.dmp

      Filesize

      56.2MB

    • memory/4172-138-0x000002A8A63D0000-0x000002A8A63E0000-memory.dmp

      Filesize

      64KB

    • memory/4172-141-0x000002A8C0620000-0x000002A8C0634000-memory.dmp

      Filesize

      80KB

    • memory/4172-137-0x000002A8C0660000-0x000002A8C076A000-memory.dmp

      Filesize

      1.0MB

    • memory/4172-143-0x000002A8C0930000-0x000002A8C093A000-memory.dmp

      Filesize

      40KB

    • memory/4172-144-0x000002A8C0960000-0x000002A8C0A12000-memory.dmp

      Filesize

      712KB

    • memory/4172-145-0x000002A8C0A20000-0x000002A8C0A4A000-memory.dmp

      Filesize

      168KB

    • memory/4172-146-0x000002A8C0AA0000-0x000002A8C0AF0000-memory.dmp

      Filesize

      320KB

    • memory/4172-147-0x000002A8C0AF0000-0x000002A8C0B12000-memory.dmp

      Filesize

      136KB

    • memory/4172-149-0x000002A8C0600000-0x000002A8C060A000-memory.dmp

      Filesize

      40KB

    • memory/4172-139-0x000002A8C0630000-0x000002A8C063C000-memory.dmp

      Filesize

      48KB

    • memory/4172-153-0x000002A8C0B20000-0x000002A8C0E20000-memory.dmp

      Filesize

      3.0MB

    • memory/4172-155-0x000002A8C5550000-0x000002A8C5558000-memory.dmp

      Filesize

      32KB

    • memory/4172-156-0x000002A8C4E90000-0x000002A8C4EC8000-memory.dmp

      Filesize

      224KB

    • memory/4172-157-0x000002A8C4E60000-0x000002A8C4E6E000-memory.dmp

      Filesize

      56KB

    • memory/4172-158-0x000002A8C4E80000-0x000002A8C4E88000-memory.dmp

      Filesize

      32KB

    • memory/4172-159-0x000002A8C4F00000-0x000002A8C4F0A000-memory.dmp

      Filesize

      40KB

    • memory/4172-160-0x000002A8C55C0000-0x000002A8C5622000-memory.dmp

      Filesize

      392KB

    • memory/4172-161-0x000002A8C5580000-0x000002A8C55A2000-memory.dmp

      Filesize

      136KB

    • memory/4172-162-0x000002A8C5B50000-0x000002A8C6078000-memory.dmp

      Filesize

      5.2MB

    • memory/4172-165-0x000002A8C55A0000-0x000002A8C55AC000-memory.dmp

      Filesize

      48KB

    • memory/4172-166-0x000002A8C5970000-0x000002A8C59E6000-memory.dmp

      Filesize

      472KB

    • memory/4172-167-0x000002A8C58D0000-0x000002A8C58EE000-memory.dmp

      Filesize

      120KB