Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-04-2024 01:43

General

  • Target

    c5dbbac2c89a06d432aa237cc3af96f33e5848c9ffc3226ecf9a7fa5a5309463.exe

  • Size

    359KB

  • MD5

    902ac8e78936748f1c2a65eebe2a5bd7

  • SHA1

    2a1c8a1ddfce7b784b4f67ddf48445a5e3e6affe

  • SHA256

    c5dbbac2c89a06d432aa237cc3af96f33e5848c9ffc3226ecf9a7fa5a5309463

  • SHA512

    adc1fc0cc60804b44bf7b2e240c4faf34109c4893d78c81c8031325d0636a6b537a9af9bc6d93d93a1117b6be0f1ef2155e3fd965af4f5082803a8405eab0a6c

  • SSDEEP

    6144:XnqaECNPTFkBgWFtBaNzFbwhkzp/LU++d0RIxgZk+mGMeja/K5+QEhIv:6a9NPTF8LFt6Jvzp/L2+Ixp1Gxj4KihK

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#.

  • Detect binaries embedding considerable number of MFA browser extension IDs. 3 IoCs
  • Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 3 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 2 IoCs
  • Detects encrypted or obfuscated .NET executables 1 IoCs
  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 4 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 27 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\c5dbbac2c89a06d432aa237cc3af96f33e5848c9ffc3226ecf9a7fa5a5309463.exe
    "C:\Users\Admin\AppData\Local\Temp\c5dbbac2c89a06d432aa237cc3af96f33e5848c9ffc3226ecf9a7fa5a5309463.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:5104
    • C:\Users\Admin\AppData\Local\Temp\u3xs.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u3xs.0.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2448
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\BKKFHIEGDH.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4840
        • C:\Users\Admin\AppData\Local\Temp\BKKFHIEGDH.exe
          "C:\Users\Admin\AppData\Local\Temp\BKKFHIEGDH.exe"
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:4884
          • 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\BKKFHIEGDH.exe
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:640
            • C:\Windows\SysWOW64\PING.EXE
              ping 2.2.2.2 -n 1 -w 3000
              6⤵
              • Runs ping.exe
              PID:4524
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2448 -s 2424
        3⤵
        • Program crash
        PID:3504
    • C:\Users\Admin\AppData\Local\Temp\u3xs.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u3xs.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:4356
      • 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:2556
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5104 -s 1520
      2⤵
      • Program crash
      PID:2032
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 5104 -ip 5104
    1⤵
      PID:2892
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2448 -ip 2448
      1⤵
        PID:4740

      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\BKKFHIEGDH.exe

        Filesize

        106KB

        MD5

        fe380780b5c35bd6d54541791151c2be

        SHA1

        7fe3a583cf91474c733f85cebf3c857682e269e1

        SHA256

        b64a84d1f88e4e78464a1901c1cb5bbd5f00bb73203d719e64e072157a087b53

        SHA512

        ba05ba8aa13c4bc1cf98fbf6c08b021e8b19354098e0397fc8e1e5d3dcce367c1063203f24e50d0973193f6535681d0a43486e5dade5d112853b7a2fe8739b6c

      • C:\Users\Admin\AppData\Local\Temp\u3xs.0.exe

        Filesize

        202KB

        MD5

        a7f49a8821946e6fa9972b8af2909998

        SHA1

        3049a4914b90e1c35039d467762b84d15a812f48

        SHA256

        2cc3c9aeb3d46d7fb8ce6beb5d49f47ff9b418f10beceae83991154ae40851ff

        SHA512

        518c557537ef9650cf6e6288eb4b4b997b2c2fecc353c8a61f0493ccee479d9168853cc9ad471d8e0e04f3d29b30895da0c5f9fc0b431462d6723128491d27a4

      • C:\Users\Admin\AppData\Local\Temp\u3xs.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/2448-131-0x0000000000400000-0x0000000002B5C000-memory.dmp

        Filesize

        39.4MB

      • memory/2448-19-0x0000000002DC0000-0x0000000002DE7000-memory.dmp

        Filesize

        156KB

      • memory/2448-18-0x0000000002E10000-0x0000000002F10000-memory.dmp

        Filesize

        1024KB

      • memory/2448-20-0x0000000000400000-0x0000000002B5C000-memory.dmp

        Filesize

        39.4MB

      • memory/2448-41-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/2448-191-0x0000000002E10000-0x0000000002F10000-memory.dmp

        Filesize

        1024KB

      • memory/2448-194-0x0000000000400000-0x0000000002B5C000-memory.dmp

        Filesize

        39.4MB

      • memory/2556-158-0x000002315A5E0000-0x000002315A656000-memory.dmp

        Filesize

        472KB

      • memory/2556-169-0x000002315E970000-0x000002315E9A8000-memory.dmp

        Filesize

        224KB

      • memory/2556-206-0x0000023159FB0000-0x0000023159FC0000-memory.dmp

        Filesize

        64KB

      • memory/2556-205-0x0000023159FB0000-0x0000023159FC0000-memory.dmp

        Filesize

        64KB

      • memory/2556-204-0x0000023159FB0000-0x0000023159FC0000-memory.dmp

        Filesize

        64KB

      • memory/2556-145-0x00007FFB41430000-0x00007FFB41EF1000-memory.dmp

        Filesize

        10.8MB

      • memory/2556-146-0x000002313B180000-0x000002313EA78000-memory.dmp

        Filesize

        57.0MB

      • memory/2556-147-0x0000023159FB0000-0x0000023159FC0000-memory.dmp

        Filesize

        64KB

      • memory/2556-148-0x000002315A290000-0x000002315A3A0000-memory.dmp

        Filesize

        1.1MB

      • memory/2556-150-0x000002313EEF0000-0x000002313EEFC000-memory.dmp

        Filesize

        48KB

      • memory/2556-149-0x000002313EEA0000-0x000002313EEB0000-memory.dmp

        Filesize

        64KB

      • memory/2556-151-0x000002313EEE0000-0x000002313EEF4000-memory.dmp

        Filesize

        80KB

      • memory/2556-152-0x00000231407D0000-0x00000231407F4000-memory.dmp

        Filesize

        144KB

      • memory/2556-153-0x000002313EF00000-0x000002313EF0A000-memory.dmp

        Filesize

        40KB

      • memory/2556-156-0x000002315A4E0000-0x000002315A55A000-memory.dmp

        Filesize

        488KB

      • memory/2556-154-0x0000023159F10000-0x0000023159F3A000-memory.dmp

        Filesize

        168KB

      • memory/2556-157-0x0000023159F40000-0x0000023159FA2000-memory.dmp

        Filesize

        392KB

      • memory/2556-203-0x0000023159FB0000-0x0000023159FC0000-memory.dmp

        Filesize

        64KB

      • memory/2556-155-0x0000023159FC0000-0x000002315A072000-memory.dmp

        Filesize

        712KB

      • memory/2556-163-0x000002315A660000-0x000002315A960000-memory.dmp

        Filesize

        3.0MB

      • memory/2556-159-0x00000231407F0000-0x00000231407FA000-memory.dmp

        Filesize

        40KB

      • memory/2556-168-0x0000023159FB0000-0x0000023159FC0000-memory.dmp

        Filesize

        64KB

      • memory/2556-170-0x000002315E930000-0x000002315E93E000-memory.dmp

        Filesize

        56KB

      • memory/2556-172-0x000002315FAC0000-0x000002315FAE2000-memory.dmp

        Filesize

        136KB

      • memory/2556-171-0x000002315E9F0000-0x000002315E9FA000-memory.dmp

        Filesize

        40KB

      • memory/2556-202-0x0000023159FB0000-0x0000023159FC0000-memory.dmp

        Filesize

        64KB

      • memory/2556-167-0x000002315E260000-0x000002315E268000-memory.dmp

        Filesize

        32KB

      • memory/2556-166-0x0000023159FB0000-0x0000023159FC0000-memory.dmp

        Filesize

        64KB

      • memory/2556-165-0x0000023159FB0000-0x0000023159FC0000-memory.dmp

        Filesize

        64KB

      • memory/2556-173-0x0000023160010000-0x0000023160538000-memory.dmp

        Filesize

        5.2MB

      • memory/2556-177-0x000002315F840000-0x000002315F84C000-memory.dmp

        Filesize

        48KB

      • memory/2556-176-0x000002315F890000-0x000002315F8E0000-memory.dmp

        Filesize

        320KB

      • memory/2556-178-0x0000023159FB0000-0x0000023159FC0000-memory.dmp

        Filesize

        64KB

      • memory/2556-201-0x00007FFB41430000-0x00007FFB41EF1000-memory.dmp

        Filesize

        10.8MB

      • memory/2556-184-0x000002315A990000-0x000002315A9B2000-memory.dmp

        Filesize

        136KB

      • memory/2556-199-0x000002315A9C0000-0x000002315A9DE000-memory.dmp

        Filesize

        120KB

      • memory/4356-143-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4356-31-0x0000000000A50000-0x0000000000A51000-memory.dmp

        Filesize

        4KB

      • memory/4884-192-0x0000000000D60000-0x0000000000D80000-memory.dmp

        Filesize

        128KB

      • memory/4884-193-0x0000000071CD0000-0x0000000072480000-memory.dmp

        Filesize

        7.7MB

      • memory/4884-195-0x00000000058A0000-0x00000000058B0000-memory.dmp

        Filesize

        64KB

      • memory/4884-198-0x0000000071CD0000-0x0000000072480000-memory.dmp

        Filesize

        7.7MB

      • memory/5104-7-0x0000000002C80000-0x0000000002D80000-memory.dmp

        Filesize

        1024KB

      • memory/5104-8-0x00000000047A0000-0x000000000480C000-memory.dmp

        Filesize

        432KB

      • memory/5104-36-0x0000000000400000-0x0000000002B83000-memory.dmp

        Filesize

        39.5MB

      • memory/5104-1-0x0000000002C80000-0x0000000002D80000-memory.dmp

        Filesize

        1024KB

      • memory/5104-3-0x0000000000400000-0x0000000002B83000-memory.dmp

        Filesize

        39.5MB

      • memory/5104-17-0x0000000000400000-0x0000000002B83000-memory.dmp

        Filesize

        39.5MB

      • memory/5104-2-0x00000000047A0000-0x000000000480C000-memory.dmp

        Filesize

        432KB