Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240214-en
  • resource tags

    arch:x64arch:x86image:win11-20240214-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    03/04/2024, 09:47

General

  • Target
    772a180a68705a5c1331e5398c49d3077c68c25c6854e761fb8a8197e02565b7.exe
  • Size 428KB
  • Sample240403-lsjgfscb97
  • SHA256 772a180a68705a5c1331e5398c49d3077c68c25c6854e761fb8a8197e02565b7
  • MD5 SHA1 SHA512 SSDEEP

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 3 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 2 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.

  • Runs ping.exe 1 TTPs 1 IoCs
  • 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 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\772a180a68705a5c1331e5398c49d3077c68c25c6854e761fb8a8197e02565b7.exe
    "C:\Users\Admin\AppData\Local\Temp\772a180a68705a5c1331e5398c49d3077c68c25c6854e761fb8a8197e02565b7.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3232
    • C:\Users\Admin\AppData\Local\Temp\u2hs.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u2hs.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3820
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\EGHCAKKEGC.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2892
        • C:\Users\Admin\AppData\Local\Temp\EGHCAKKEGC.exe
          "C:\Users\Admin\AppData\Local\Temp\EGHCAKKEGC.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:1672
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /C ping 2.2.2.2 -n 1 -w 3000 > Nul & Del C:\Users\Admin\AppData\Local\Temp\EGHCAKKEGC.exe
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:4756
            • C:\Windows\SysWOW64\PING.EXE
              ping 2.2.2.2 -n 1 -w 3000
              6⤵
              • Runs ping.exe
              PID:1640
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3820 -s 2548
        3⤵
        • Program crash
        PID:3512
    • C:\Users\Admin\AppData\Local\Temp\u2hs.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u2hs.1.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:4072
      • 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:2288
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3232 -s 1148
      2⤵
      • Program crash
      PID:1932
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3232 -ip 3232
    1⤵
      PID:2916
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3820 -ip 3820
      1⤵
        PID:3796

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            Are.docx

            • Path C:\ProgramData\Are.docx
            • Size 11KB
            • SHA256 5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454
            • MD5 SHA1 SHA512 SSDEEP

            mozglue.dll

            • Path C:\ProgramData\mozglue.dll
            • Size 593KB
            • SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
            • MD5 SHA1 SHA512 SSDEEP

            nss3.dll

            • Path C:\ProgramData\nss3.dll
            • Size 2.0MB
            • SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
            • MD5 SHA1 SHA512 SSDEEP

            EGHCAKKEGC.exe

            • Path C:\Users\Admin\AppData\Local\Temp\EGHCAKKEGC.exe
            • Size 106KB
            • SHA256 b64a84d1f88e4e78464a1901c1cb5bbd5f00bb73203d719e64e072157a087b53
            • MD5 SHA1 SHA512 SSDEEP

            u2hs.0.exe

            • Path C:\Users\Admin\AppData\Local\Temp\u2hs.0.exe
            • Size 288KB
            • SHA256 34567116a4502f378362327e1cde0dcaed0cee3c62f9fa651e8d52d44e49e54e
            • MD5 SHA1 SHA512 SSDEEP

            u2hs.1.exe

            • Path C:\Users\Admin\AppData\Local\Temp\u2hs.1.exe
            • Size 4.6MB
            • SHA256 4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7
            • MD5 SHA1 SHA512 SSDEEP

            memory/1672-189-0x0000000071890000-0x0000000072041000-memory.dmp

            memory/1672-188-0x0000000000D90000-0x0000000000DB0000-memory.dmp

            memory/1672-194-0x0000000071890000-0x0000000072041000-memory.dmp

            memory/1672-190-0x0000000005890000-0x00000000058A0000-memory.dmp

            memory/2288-152-0x0000025A8C000000-0x0000025A8C014000-memory.dmp

            memory/2288-159-0x0000025AA4F80000-0x0000025AA4FF6000-memory.dmp

            memory/2288-185-0x0000025AA5400000-0x0000025AA540C000-memory.dmp

            memory/2288-187-0x0000025A8A750000-0x0000025A8A760000-memory.dmp

            memory/2288-203-0x0000025A8A750000-0x0000025A8A760000-memory.dmp

            memory/2288-198-0x00007FFB32530000-0x00007FFB32FF2000-memory.dmp

            memory/2288-200-0x0000025A8A750000-0x0000025A8A760000-memory.dmp

            memory/2288-196-0x0000025AA54D0000-0x0000025AA54EE000-memory.dmp

            memory/2288-146-0x00007FFB32530000-0x00007FFB32FF2000-memory.dmp

            memory/2288-147-0x0000025A86A30000-0x0000025A8A328000-memory.dmp

            memory/2288-148-0x0000025A8A750000-0x0000025A8A760000-memory.dmp

            memory/2288-149-0x0000025AA4A70000-0x0000025AA4B80000-memory.dmp

            memory/2288-150-0x0000025A8BFF0000-0x0000025A8C000000-memory.dmp

            memory/2288-151-0x0000025AA4910000-0x0000025AA491C000-memory.dmp

            memory/2288-201-0x0000025A8A750000-0x0000025A8A760000-memory.dmp

            memory/2288-153-0x0000025AA4A40000-0x0000025AA4A64000-memory.dmp

            memory/2288-154-0x0000025AA4D20000-0x0000025AA4D2A000-memory.dmp

            memory/2288-155-0x0000025AA4D40000-0x0000025AA4DF2000-memory.dmp

            memory/2288-157-0x0000025AA4E20000-0x0000025AA4E9A000-memory.dmp

            memory/2288-156-0x0000025AA4DF0000-0x0000025AA4E1A000-memory.dmp

            memory/2288-158-0x0000025AA4EA0000-0x0000025AA4F02000-memory.dmp

            memory/2288-199-0x0000025A8A750000-0x0000025A8A760000-memory.dmp

            memory/2288-160-0x0000025A8A7B0000-0x0000025A8A7BA000-memory.dmp

            memory/2288-164-0x0000025AA5000000-0x0000025AA5300000-memory.dmp

            memory/2288-166-0x0000025A8A750000-0x0000025A8A760000-memory.dmp

            memory/2288-167-0x0000025AA9A20000-0x0000025AA9A28000-memory.dmp

            memory/2288-172-0x0000025A8A750000-0x0000025A8A760000-memory.dmp

            memory/2288-168-0x0000025A8A750000-0x0000025A8A760000-memory.dmp

            memory/2288-173-0x0000025AA9360000-0x0000025AA9398000-memory.dmp

            memory/2288-174-0x0000025AA9330000-0x0000025AA933E000-memory.dmp

            memory/2288-175-0x0000025AA9CC0000-0x0000025AA9CCA000-memory.dmp

            memory/2288-176-0x0000025AA9A40000-0x0000025AA9A62000-memory.dmp

            memory/2288-177-0x0000025AAA200000-0x0000025AAA728000-memory.dmp

            memory/2288-202-0x0000025A8A750000-0x0000025A8A760000-memory.dmp

            memory/2288-195-0x0000025AA54A0000-0x0000025AA54C2000-memory.dmp

            memory/2288-184-0x0000025AA5450000-0x0000025AA54A0000-memory.dmp

            memory/3232-1-0x0000000000A00000-0x0000000000B00000-memory.dmp

            memory/3232-31-0x0000000000400000-0x0000000000889000-memory.dmp

            memory/3232-32-0x00000000026F0000-0x000000000275C000-memory.dmp

            memory/3232-3-0x0000000000400000-0x0000000000889000-memory.dmp

            memory/3232-2-0x00000000026F0000-0x000000000275C000-memory.dmp

            memory/3820-127-0x0000000000400000-0x0000000000866000-memory.dmp

            memory/3820-192-0x0000000000400000-0x0000000000866000-memory.dmp

            memory/3820-186-0x0000000000400000-0x0000000000866000-memory.dmp

            memory/3820-183-0x0000000000A70000-0x0000000000B70000-memory.dmp

            memory/3820-33-0x0000000061E00000-0x0000000061EF3000-memory.dmp

            memory/3820-15-0x0000000000400000-0x0000000000866000-memory.dmp

            memory/3820-14-0x0000000000A20000-0x0000000000A47000-memory.dmp

            memory/3820-13-0x0000000000A70000-0x0000000000B70000-memory.dmp

            memory/4072-145-0x0000000000400000-0x00000000008AD000-memory.dmp

            memory/4072-128-0x0000000000400000-0x00000000008AD000-memory.dmp

            memory/4072-26-0x0000000002620000-0x0000000002621000-memory.dmp