Analysis

  • max time kernel
    92s
  • max time network
    125s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240426-en
  • resource tags

    arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    11-05-2024 00:19

General

  • Target

    ac052cdeddb16499e02e2042206e139ad78ecf11fd86719b3611d2240e476e96.exe

  • Size

    387KB

  • MD5

    53ac821d73be008f58a1adbd689cee9c

  • SHA1

    59791e929fbc0867a4ec9658d5a309992227efc1

  • SHA256

    ac052cdeddb16499e02e2042206e139ad78ecf11fd86719b3611d2240e476e96

  • SHA512

    c7e681805be7622fb9adbf3d1117284a63a4175867693c568a49ccedd2d684a017e2b49e89c595402b37b3cf1a3cdc3c63012b69cd64e662a08a7f302ac4c4c6

  • SSDEEP

    6144:JzP+6ZWEAS2YtQTTtNLiamb2gWwfGtUyeWPwj7Z9o4T9o/:JzP+6sjS3EjLKbdGtqfjC/

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\ac052cdeddb16499e02e2042206e139ad78ecf11fd86719b3611d2240e476e96.exe
    "C:\Users\Admin\AppData\Local\Temp\ac052cdeddb16499e02e2042206e139ad78ecf11fd86719b3611d2240e476e96.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4564
    • C:\Users\Admin\AppData\Local\Temp\u3is.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u3is.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:1980
    • C:\Users\Admin\AppData\Local\Temp\u3is.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u3is.1.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:3928
      • 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:3304
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4564 -s 1524
      2⤵
      • Program crash
      PID:1912
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4564 -ip 4564
    1⤵
      PID:4256

    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\u3is.0.exe

      Filesize

      245KB

      MD5

      dd87d2cb25ca0057e220c143dd4b628e

      SHA1

      48238804ea2bee1cb0cf1e1c946a12bfc1265a15

      SHA256

      e07d3383a78b7b05cd27cf2f569c6e93026e9f40dff4ccb8ec81efafa6b2b23f

      SHA512

      bc7a14eb4b49df3f99028b1ae6dadf6bbca205d564c13c7dc2d05641a9e0d06558eb0bf67aaf51cf5c9c70c9963fe6265755259dae8e643484b0124796f57ff3

    • C:\Users\Admin\AppData\Local\Temp\u3is.1.exe

      Filesize

      4.6MB

      MD5

      397926927bca55be4a77839b1c44de6e

      SHA1

      e10f3434ef3021c399dbba047832f02b3c898dbd

      SHA256

      4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

      SHA512

      cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

    • memory/1980-174-0x0000000000400000-0x0000000002579000-memory.dmp

      Filesize

      33.5MB

    • memory/1980-13-0x0000000000400000-0x0000000002579000-memory.dmp

      Filesize

      33.5MB

    • memory/1980-14-0x0000000000400000-0x0000000002579000-memory.dmp

      Filesize

      33.5MB

    • memory/1980-15-0x0000000000400000-0x0000000002579000-memory.dmp

      Filesize

      33.5MB

    • memory/1980-26-0x0000000061E00000-0x0000000061EF3000-memory.dmp

      Filesize

      972KB

    • memory/1980-116-0x0000000000400000-0x0000000002579000-memory.dmp

      Filesize

      33.5MB

    • memory/3304-153-0x000001F618310000-0x000001F618332000-memory.dmp

      Filesize

      136KB

    • memory/3304-139-0x000001F67A6F0000-0x000001F67A740000-memory.dmp

      Filesize

      320KB

    • memory/3304-163-0x000001F67EB20000-0x000001F67EB3E000-memory.dmp

      Filesize

      120KB

    • memory/3304-162-0x000001F67EFE0000-0x000001F67F056000-memory.dmp

      Filesize

      472KB

    • memory/3304-147-0x000001F67E400000-0x000001F67E408000-memory.dmp

      Filesize

      32KB

    • memory/3304-130-0x000001F674360000-0x000001F677B94000-memory.dmp

      Filesize

      56.2MB

    • memory/3304-133-0x000001F6798C0000-0x000001F6798CC000-memory.dmp

      Filesize

      48KB

    • memory/3304-132-0x000001F679890000-0x000001F6798A0000-memory.dmp

      Filesize

      64KB

    • memory/3304-131-0x000001F67A350000-0x000001F67A45A000-memory.dmp

      Filesize

      1.0MB

    • memory/3304-135-0x000001F67A200000-0x000001F67A224000-memory.dmp

      Filesize

      144KB

    • memory/3304-134-0x000001F6798B0000-0x000001F6798C4000-memory.dmp

      Filesize

      80KB

    • memory/3304-138-0x000001F67A5F0000-0x000001F67A6A2000-memory.dmp

      Filesize

      712KB

    • memory/3304-137-0x000001F67A5B0000-0x000001F67A5DA000-memory.dmp

      Filesize

      168KB

    • memory/3304-136-0x000001F67A230000-0x000001F67A23A000-memory.dmp

      Filesize

      40KB

    • memory/3304-140-0x000001F67A740000-0x000001F67A762000-memory.dmp

      Filesize

      136KB

    • memory/3304-148-0x000001F67EAE0000-0x000001F67EB18000-memory.dmp

      Filesize

      224KB

    • memory/3304-141-0x000001F679830000-0x000001F67983A000-memory.dmp

      Filesize

      40KB

    • memory/3304-145-0x000001F67A770000-0x000001F67AA70000-memory.dmp

      Filesize

      3.0MB

    • memory/3304-149-0x000001F67E410000-0x000001F67E41E000-memory.dmp

      Filesize

      56KB

    • memory/3304-157-0x000001F618330000-0x000001F61833C000-memory.dmp

      Filesize

      48KB

    • memory/3304-152-0x000001F6185A0000-0x000001F618602000-memory.dmp

      Filesize

      392KB

    • memory/3304-151-0x000001F6182F0000-0x000001F6182FA000-memory.dmp

      Filesize

      40KB

    • memory/3304-154-0x000001F618B30000-0x000001F619058000-memory.dmp

      Filesize

      5.2MB

    • memory/3304-150-0x000001F67E420000-0x000001F67E428000-memory.dmp

      Filesize

      32KB

    • memory/3928-129-0x0000000000400000-0x00000000008AD000-memory.dmp

      Filesize

      4.7MB

    • memory/3928-128-0x0000000000400000-0x00000000008AD000-memory.dmp

      Filesize

      4.7MB

    • memory/4564-3-0x0000000000400000-0x000000000046F000-memory.dmp

      Filesize

      444KB

    • memory/4564-66-0x0000000000400000-0x000000000259D000-memory.dmp

      Filesize

      33.6MB

    • memory/4564-67-0x0000000000400000-0x000000000046F000-memory.dmp

      Filesize

      444KB

    • memory/4564-1-0x0000000002830000-0x0000000002930000-memory.dmp

      Filesize

      1024KB

    • memory/4564-2-0x00000000042D0000-0x000000000433C000-memory.dmp

      Filesize

      432KB