Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-05-2024 22:16

General

  • Target

    8371680a240dc4ec98c0c0c8f9558e9098b621aa2a4ddbf8d64e955c592212d5.exe

  • Size

    388KB

  • MD5

    ac771a1d1f9c353d95be3d3a0e98a40c

  • SHA1

    782eb4d3c1ad6cb06b7bb7460e4de1ef239238b3

  • SHA256

    8371680a240dc4ec98c0c0c8f9558e9098b621aa2a4ddbf8d64e955c592212d5

  • SHA512

    9f6b7235fc3806e8efb1ce931fab02ab8e1d8afe7d40db28e0d6ec3773bc398205b76f87d93041af341b83af02aa81ae1d878cfc679898e40b42ae84479b5f29

  • SSDEEP

    12288:aG1ixU5HEhboNYNJHxqi4vdf4qLfxmGL6:aGMnhbvrHwi4vdAqL0GL6

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 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 25 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\8371680a240dc4ec98c0c0c8f9558e9098b621aa2a4ddbf8d64e955c592212d5.exe
    "C:\Users\Admin\AppData\Local\Temp\8371680a240dc4ec98c0c0c8f9558e9098b621aa2a4ddbf8d64e955c592212d5.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3724
    • C:\Users\Admin\AppData\Local\Temp\u2vg.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u2vg.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:4212
    • C:\Users\Admin\AppData\Local\Temp\u2vg.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u2vg.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:3712
      • 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:3260
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3724 -s 1564
      2⤵
      • Program crash
      PID:1128
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 3724 -ip 3724
    1⤵
      PID:2480

    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\u2vg.0.exe

      Filesize

      245KB

      MD5

      5ea66fe490011da271a673577bad5bde

      SHA1

      04191be80d32e89c876840af14ad9352a0c1eff2

      SHA256

      a8b093f291c9d435b8c9f832e7817a854e04290da381672de6234b031b2cf3a0

      SHA512

      6ae839e1e59cc1ab2abd4c8dec88cef0d1e89110614d443d6e64b99faa2dba8b1d4b9a00824cfe91f94c29e32413a7ff3448249aee342349868a0dab9bd3db97

    • C:\Users\Admin\AppData\Local\Temp\u2vg.1.exe

      Filesize

      4.6MB

      MD5

      397926927bca55be4a77839b1c44de6e

      SHA1

      e10f3434ef3021c399dbba047832f02b3c898dbd

      SHA256

      4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

      SHA512

      cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

    • memory/3260-148-0x00000255DD5B0000-0x00000255DD5B8000-memory.dmp

      Filesize

      32KB

    • memory/3260-147-0x00000255DD590000-0x00000255DD59E000-memory.dmp

      Filesize

      56KB

    • memory/3260-177-0x00000255DE4E0000-0x00000255DE4FE000-memory.dmp

      Filesize

      120KB

    • memory/3260-132-0x00000255BEA80000-0x00000255BEA94000-memory.dmp

      Filesize

      80KB

    • memory/3260-176-0x00000255DE580000-0x00000255DE5F6000-memory.dmp

      Filesize

      472KB

    • memory/3260-165-0x00000255DE4A0000-0x00000255DE4AC000-memory.dmp

      Filesize

      48KB

    • memory/3260-152-0x00000255DECA0000-0x00000255DF1C8000-memory.dmp

      Filesize

      5.2MB

    • memory/3260-151-0x00000255DE480000-0x00000255DE4A2000-memory.dmp

      Filesize

      136KB

    • memory/3260-149-0x00000255DE460000-0x00000255DE46A000-memory.dmp

      Filesize

      40KB

    • memory/3260-150-0x00000255DE710000-0x00000255DE772000-memory.dmp

      Filesize

      392KB

    • memory/3260-130-0x00000255BEA70000-0x00000255BEA80000-memory.dmp

      Filesize

      64KB

    • memory/3260-146-0x00000255DD5C0000-0x00000255DD5F8000-memory.dmp

      Filesize

      224KB

    • memory/3260-133-0x00000255D8B90000-0x00000255D8BB4000-memory.dmp

      Filesize

      144KB

    • memory/3260-138-0x00000255D91F0000-0x00000255D9212000-memory.dmp

      Filesize

      136KB

    • memory/3260-137-0x00000255D91A0000-0x00000255D91F0000-memory.dmp

      Filesize

      320KB

    • memory/3260-136-0x00000255D9090000-0x00000255D9142000-memory.dmp

      Filesize

      712KB

    • memory/3260-135-0x00000255D9060000-0x00000255D908A000-memory.dmp

      Filesize

      168KB

    • memory/3260-128-0x00000255BADB0000-0x00000255BE5E4000-memory.dmp

      Filesize

      56.2MB

    • memory/3260-129-0x00000255D8DD0000-0x00000255D8EDA000-memory.dmp

      Filesize

      1.0MB

    • memory/3260-131-0x00000255BEA90000-0x00000255BEA9C000-memory.dmp

      Filesize

      48KB

    • memory/3260-145-0x00000255DD640000-0x00000255DD648000-memory.dmp

      Filesize

      32KB

    • memory/3260-143-0x00000255D9220000-0x00000255D9520000-memory.dmp

      Filesize

      3.0MB

    • memory/3260-139-0x00000255BEA10000-0x00000255BEA1A000-memory.dmp

      Filesize

      40KB

    • memory/3260-134-0x00000255BEA00000-0x00000255BEA0A000-memory.dmp

      Filesize

      40KB

    • memory/3712-127-0x0000000000400000-0x00000000008AD000-memory.dmp

      Filesize

      4.7MB

    • memory/3712-114-0x0000000000400000-0x00000000008AD000-memory.dmp

      Filesize

      4.7MB

    • memory/3712-97-0x0000000000400000-0x00000000008AD000-memory.dmp

      Filesize

      4.7MB

    • memory/3724-91-0x0000000000400000-0x000000000046F000-memory.dmp

      Filesize

      444KB

    • memory/3724-90-0x0000000000400000-0x000000000259D000-memory.dmp

      Filesize

      33.6MB

    • memory/3724-3-0x0000000000400000-0x000000000046F000-memory.dmp

      Filesize

      444KB

    • memory/3724-13-0x0000000000400000-0x000000000259D000-memory.dmp

      Filesize

      33.6MB

    • memory/3724-2-0x00000000041B0000-0x000000000421C000-memory.dmp

      Filesize

      432KB

    • memory/3724-1-0x00000000025E0000-0x00000000026E0000-memory.dmp

      Filesize

      1024KB

    • memory/3724-15-0x00000000025E0000-0x00000000026E0000-memory.dmp

      Filesize

      1024KB

    • memory/3724-55-0x0000000000400000-0x000000000046F000-memory.dmp

      Filesize

      444KB

    • memory/4212-57-0x0000000000400000-0x0000000002579000-memory.dmp

      Filesize

      33.5MB

    • memory/4212-62-0x0000000000400000-0x0000000002579000-memory.dmp

      Filesize

      33.5MB

    • memory/4212-67-0x0000000000400000-0x0000000002579000-memory.dmp

      Filesize

      33.5MB

    • memory/4212-92-0x0000000000400000-0x0000000002579000-memory.dmp

      Filesize

      33.5MB

    • memory/4212-17-0x0000000000400000-0x0000000002579000-memory.dmp

      Filesize

      33.5MB

    • memory/4212-19-0x0000000061E00000-0x0000000061EF3000-memory.dmp

      Filesize

      972KB

    • memory/4212-18-0x0000000000400000-0x0000000002579000-memory.dmp

      Filesize

      33.5MB

    • memory/4212-175-0x0000000000400000-0x0000000002579000-memory.dmp

      Filesize

      33.5MB

    • memory/4212-16-0x0000000000400000-0x0000000002579000-memory.dmp

      Filesize

      33.5MB