Analysis

  • max time kernel
    133s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-05-2024 09:00

General

  • Target

    5604ab1419689c7e5ec3fb1e356d32efb0da9c5b8fbe6618df9215aeb4ef01c1.exe

  • Size

    387KB

  • MD5

    531726e1088caad8ac59bb6c35ff71c2

  • SHA1

    ee2709ecdcb536b05a22b993b829b4ea672959c2

  • SHA256

    5604ab1419689c7e5ec3fb1e356d32efb0da9c5b8fbe6618df9215aeb4ef01c1

  • SHA512

    a5370156d2eb91b12f3412f90a6f1b702da1b4d4bcf2c6920dd40a0ce977d818642f388164af54d576ebe73aee72b9ac7feacc97526b94ed27b432f43a91a57c

  • SSDEEP

    6144:HclsoLz0jzrOMX0kEwzU31zImLUKkOFyV9WYpcAjTPM:Hclso/0PriWi1zImobQ+XPM

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 28 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\5604ab1419689c7e5ec3fb1e356d32efb0da9c5b8fbe6618df9215aeb4ef01c1.exe
    "C:\Users\Admin\AppData\Local\Temp\5604ab1419689c7e5ec3fb1e356d32efb0da9c5b8fbe6618df9215aeb4ef01c1.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1948
    • C:\Users\Admin\AppData\Local\Temp\u1i4.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u1i4.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:4192
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4192 -s 2356
        3⤵
        • Program crash
        PID:4404
    • C:\Users\Admin\AppData\Local\Temp\u1i4.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u1i4.1.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:3828
      • 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:3492
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1948 -s 1160
      2⤵
      • Program crash
      PID:4300
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1948 -ip 1948
    1⤵
      PID:1812
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4192 -ip 4192
      1⤵
        PID:2812

      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

        2KB

        MD5

        cefd8f58800c82509d526363e055ebca

        SHA1

        d3ab6cd4f45d956ecb7a43cecae4b9110627c899

        SHA256

        60065ed191de6068aab81457b31c0907880adc8329be05be60912fef859ef3f9

        SHA512

        6f281c0bce0a2510b76aa2c808d2a02dc807162f03de4a1f8573fec33a0ddeba5955b2c5d072455c2b7fb027b528679daba5cbc85eaa3036c80176e9391e6cdd

      • C:\Users\Admin\AppData\Local\Temp\u1i4.0.exe

        Filesize

        245KB

        MD5

        e975a0eae2991f1e4c995d7a4e3ffd79

        SHA1

        90ca4c9586bf9d7a19312228b1fbba7dace29fc4

        SHA256

        b00335a75190fd3b930329adf19c93b483975cb24cc056bea62b0ef359abe3fa

        SHA512

        843e70b2ed07a7487c45471999cf521dd6d9e2049be013c2e57f0d6e14dfbda9cb97a324413d8bdcd13d3bf6e8f484f2ab89a541c92550f430d081e2434c919a

      • C:\Users\Admin\AppData\Local\Temp\u1i4.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/1948-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/1948-2-0x0000000002700000-0x000000000276C000-memory.dmp

        Filesize

        432KB

      • memory/1948-1-0x0000000002930000-0x0000000002A30000-memory.dmp

        Filesize

        1024KB

      • memory/1948-31-0x0000000002700000-0x000000000276C000-memory.dmp

        Filesize

        432KB

      • memory/1948-32-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/1948-30-0x0000000000400000-0x000000000259D000-memory.dmp

        Filesize

        33.6MB

      • memory/3492-151-0x00000276DEA40000-0x00000276DEA48000-memory.dmp

        Filesize

        32KB

      • memory/3492-152-0x00000276DFB70000-0x00000276DFB7A000-memory.dmp

        Filesize

        40KB

      • memory/3492-161-0x00000276DF930000-0x00000276DF94E000-memory.dmp

        Filesize

        120KB

      • memory/3492-159-0x00000276DF9D0000-0x00000276DFA46000-memory.dmp

        Filesize

        472KB

      • memory/3492-108-0x00000276BC230000-0x00000276BFA64000-memory.dmp

        Filesize

        56.2MB

      • memory/3492-115-0x00000276DA3B0000-0x00000276DA4BA000-memory.dmp

        Filesize

        1.0MB

      • memory/3492-117-0x00000276C1710000-0x00000276C171C000-memory.dmp

        Filesize

        48KB

      • memory/3492-116-0x00000276BFE60000-0x00000276BFE70000-memory.dmp

        Filesize

        64KB

      • memory/3492-118-0x00000276C1700000-0x00000276C1714000-memory.dmp

        Filesize

        80KB

      • memory/3492-119-0x00000276C1780000-0x00000276C17A4000-memory.dmp

        Filesize

        144KB

      • memory/3492-121-0x00000276C17B0000-0x00000276C17DA000-memory.dmp

        Filesize

        168KB

      • memory/3492-122-0x00000276DA1F0000-0x00000276DA2A2000-memory.dmp

        Filesize

        712KB

      • memory/3492-123-0x00000276DA650000-0x00000276DA6A0000-memory.dmp

        Filesize

        320KB

      • memory/3492-124-0x00000276DA6A0000-0x00000276DA6C2000-memory.dmp

        Filesize

        136KB

      • memory/3492-120-0x00000276C16E0000-0x00000276C16EA000-memory.dmp

        Filesize

        40KB

      • memory/3492-137-0x00000276C16F0000-0x00000276C16FA000-memory.dmp

        Filesize

        40KB

      • memory/3492-158-0x00000276DF8F0000-0x00000276DF8FC000-memory.dmp

        Filesize

        48KB

      • memory/3492-155-0x00000276E0140000-0x00000276E0668000-memory.dmp

        Filesize

        5.2MB

      • memory/3492-142-0x00000276DA6D0000-0x00000276DA9D0000-memory.dmp

        Filesize

        3.0MB

      • memory/3492-148-0x00000276DE350000-0x00000276DE358000-memory.dmp

        Filesize

        32KB

      • memory/3492-150-0x00000276DEA20000-0x00000276DEA2E000-memory.dmp

        Filesize

        56KB

      • memory/3492-154-0x00000276DFBF0000-0x00000276DFC12000-memory.dmp

        Filesize

        136KB

      • memory/3492-149-0x00000276DEA50000-0x00000276DEA88000-memory.dmp

        Filesize

        224KB

      • memory/3492-153-0x00000276DFB90000-0x00000276DFBF2000-memory.dmp

        Filesize

        392KB

      • memory/3828-87-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/3828-104-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4192-27-0x0000000000400000-0x000000000257A000-memory.dmp

        Filesize

        33.5MB

      • memory/4192-29-0x0000000000400000-0x000000000257A000-memory.dmp

        Filesize

        33.5MB

      • memory/4192-38-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/4192-160-0x0000000000400000-0x000000000257A000-memory.dmp

        Filesize

        33.5MB

      • memory/4192-86-0x0000000000400000-0x000000000257A000-memory.dmp

        Filesize

        33.5MB

      • memory/4192-25-0x0000000000400000-0x000000000257A000-memory.dmp

        Filesize

        33.5MB

      • memory/4192-172-0x0000000000400000-0x000000000257A000-memory.dmp

        Filesize

        33.5MB