Analysis

  • max time kernel
    132s
  • max time network
    132s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-05-2024 04:52

General

  • Target

    fc996bee248c9648a5b92ea7b3bc0ccae013a66df014cd1db20adb7d862c4ea7.exe

  • Size

    416KB

  • MD5

    20bba8104dbb17901ad2fbbb7f589271

  • SHA1

    c7f63f4a1b79272d074656643ce97e2fcad515bd

  • SHA256

    fc996bee248c9648a5b92ea7b3bc0ccae013a66df014cd1db20adb7d862c4ea7

  • SHA512

    54cf3cea6a7743250fb2db37a84e80c8bc4e018cd66a3ce3afcd6e331fb20049626b547420d3eed11167e84bd07374d549c9644a2284e85c0f4f22770ae7611b

  • SSDEEP

    6144:EkIIKkd5F7LcRmt5tuGEBQ4ZHXbA/3TntkIKcqFWWgfLR8tai8:E3DkzF7gmt5tuPBQ6LO3btbKnuLWtf8

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 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.

  • Suspicious behavior: EnumeratesProcesses 30 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\fc996bee248c9648a5b92ea7b3bc0ccae013a66df014cd1db20adb7d862c4ea7.exe
    "C:\Users\Admin\AppData\Local\Temp\fc996bee248c9648a5b92ea7b3bc0ccae013a66df014cd1db20adb7d862c4ea7.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1984
    • C:\Users\Admin\AppData\Local\Temp\u1j4.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u1j4.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:4852
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4852 -s 2396
        3⤵
        • Program crash
        PID:1240
    • C:\Users\Admin\AppData\Local\Temp\u1j4.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u1j4.1.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:4256
      • 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:2444
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1984 -s 1152
      2⤵
      • Program crash
      PID:4436
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1984 -ip 1984
    1⤵
      PID:3568
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4852 -ip 4852
      1⤵
        PID:1836

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      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\iolo\dm\ioloDMLog.txt

        Filesize

        3KB

        MD5

        fcc0fc5ef6b1e3ea1bdbb5330993cfcb

        SHA1

        1fadfec6860a7978e092515f0c78cf5dfd2be667

        SHA256

        3456a553d507f3a4e0bfb5167a619425868a44aa60ea11f62c1230a6520a29d4

        SHA512

        a9d183cb597e5f033200d3052b44dda6cafb49315b7311f9d2d7ae13d7e276898921ae354228ee0bfb4de997752d1df2b6a88f47bb543e89420bc6405d91b359

      • C:\Users\Admin\AppData\Local\Temp\u1j4.0.exe

        Filesize

        275KB

        MD5

        31c1bdc2c9075e8c2eab9353c41c117f

        SHA1

        ab28fb009dc8c2fa244c773760109e38711b1025

        SHA256

        4e08b9b37494a1917d2ab809fff59b3a45673a80d25587e51c8749331bb56233

        SHA512

        78b995611e33b441e9ebaeecbbce3ec96bbfcac7f71bd0f639ab1e3394900be5c80893dfc8957b696609eca7ce1933d58f026c7be389795f0dcc72ad3fc35593

      • C:\Users\Admin\AppData\Local\Temp\u1j4.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/1984-2-0x0000000003680000-0x00000000036EC000-memory.dmp

        Filesize

        432KB

      • memory/1984-1-0x0000000001CE0000-0x0000000001DE0000-memory.dmp

        Filesize

        1024KB

      • memory/1984-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/1984-76-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/1984-75-0x0000000000400000-0x0000000001A32000-memory.dmp

        Filesize

        22.2MB

      • memory/2444-151-0x00000214A6E30000-0x00000214A6E40000-memory.dmp

        Filesize

        64KB

      • memory/2444-156-0x00000214A6FE0000-0x00000214A7092000-memory.dmp

        Filesize

        712KB

      • memory/2444-178-0x00000214AC910000-0x00000214AC92E000-memory.dmp

        Filesize

        120KB

      • memory/2444-177-0x00000214AC8E0000-0x00000214AC902000-memory.dmp

        Filesize

        136KB

      • memory/2444-176-0x00000214AC840000-0x00000214AC84C000-memory.dmp

        Filesize

        48KB

      • memory/2444-175-0x00000214AC890000-0x00000214AC8E0000-memory.dmp

        Filesize

        320KB

      • memory/2444-172-0x00000214AD010000-0x00000214AD538000-memory.dmp

        Filesize

        5.2MB

      • memory/2444-149-0x0000021488180000-0x000002148BA78000-memory.dmp

        Filesize

        57.0MB

      • memory/2444-150-0x00000214A71B0000-0x00000214A72C0000-memory.dmp

        Filesize

        1.1MB

      • memory/2444-171-0x00000214ACAC0000-0x00000214ACAE2000-memory.dmp

        Filesize

        136KB

      • memory/2444-152-0x00000214A6E50000-0x00000214A6E5C000-memory.dmp

        Filesize

        48KB

      • memory/2444-153-0x00000214A6E10000-0x00000214A6E24000-memory.dmp

        Filesize

        80KB

      • memory/2444-154-0x00000214A6EA0000-0x00000214A6EC4000-memory.dmp

        Filesize

        144KB

      • memory/2444-155-0x00000214A6FD0000-0x00000214A6FDA000-memory.dmp

        Filesize

        40KB

      • memory/2444-157-0x00000214A7400000-0x00000214A742A000-memory.dmp

        Filesize

        168KB

      • memory/2444-170-0x00000214AB9E0000-0x00000214AB9EA000-memory.dmp

        Filesize

        40KB

      • memory/2444-158-0x00000214A7430000-0x00000214A74AA000-memory.dmp

        Filesize

        488KB

      • memory/2444-159-0x00000214A74C0000-0x00000214A7522000-memory.dmp

        Filesize

        392KB

      • memory/2444-160-0x00000214A75A0000-0x00000214A7616000-memory.dmp

        Filesize

        472KB

      • memory/2444-161-0x00000214A7190000-0x00000214A719A000-memory.dmp

        Filesize

        40KB

      • memory/2444-165-0x00000214A7620000-0x00000214A7920000-memory.dmp

        Filesize

        3.0MB

      • memory/2444-167-0x00000214AB260000-0x00000214AB268000-memory.dmp

        Filesize

        32KB

      • memory/2444-168-0x00000214AB970000-0x00000214AB9A8000-memory.dmp

        Filesize

        224KB

      • memory/2444-169-0x00000214AB930000-0x00000214AB93E000-memory.dmp

        Filesize

        56KB

      • memory/4256-148-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4256-136-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4852-20-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/4852-16-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/4852-17-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/4852-120-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB

      • memory/4852-18-0x0000000000400000-0x0000000001A0F000-memory.dmp

        Filesize

        22.1MB