Analysis

  • max time kernel
    129s
  • max time network
    131s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240426-en
  • resource tags

    arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    10-05-2024 04:43

General

  • Target

    4ebe65c503baf50ce093bca1b4e11a8eb942a61a4fe7348b8bc1f93939187778.exe

  • Size

    372KB

  • MD5

    df39af1242f1cb09e807813982a10a67

  • SHA1

    e46255419108a21514d92ce5aa9fdc89ae56e35c

  • SHA256

    4ebe65c503baf50ce093bca1b4e11a8eb942a61a4fe7348b8bc1f93939187778

  • SHA512

    8666c98eac46b71063304b3938f2a70657647c3886c0d990fa1c59464cf44236e46acb3e6e4f67d57d8c994837b2fe05b7baf197b7707f7d16a482310d5ecfa5

  • SSDEEP

    6144:rte+TLYkD9ZWZImNMlYNOYa4JB4B4tTOgAKx9IvdYlhUHmnfKrbZJS:5L9ZWypUsaK4tTO+x9IFYjUGnkbZJS

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
  • 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 21 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\4ebe65c503baf50ce093bca1b4e11a8eb942a61a4fe7348b8bc1f93939187778.exe
    "C:\Users\Admin\AppData\Local\Temp\4ebe65c503baf50ce093bca1b4e11a8eb942a61a4fe7348b8bc1f93939187778.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1496
    • C:\Users\Admin\AppData\Local\Temp\u15k.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u15k.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:2240
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2240 -s 2440
        3⤵
        • Program crash
        PID:3148
    • C:\Users\Admin\AppData\Local\Temp\u15k.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u15k.1.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:3804
      • 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:1880
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1496 -s 1408
      2⤵
      • Program crash
      PID:332
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1496 -ip 1496
    1⤵
      PID:4844
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2240 -ip 2240
      1⤵
        PID:1012

      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

        c3bdfa32f4a636e740fbebc36f8e98ed

        SHA1

        077019c8d4bced17a02e53ad460e7a068cc1ced3

        SHA256

        09bbd31266e7eda77bff5053c42e9207ce79eb84299135e389ad7305c4c91135

        SHA512

        77da45fc0a8e002263261c2471dc37a385a2d60c619dc91bb868d6fd72dc5b7583f5e123adb5c94a2a29c80776e231270b8800fd734e3af17a8264332b4f94db

      • C:\Users\Admin\AppData\Local\Temp\u15k.0.exe

        Filesize

        242KB

        MD5

        333a088ed41af0a58b8e5b79e53d4745

        SHA1

        1c144747c6cdf5b87c37076acc927148542cf347

        SHA256

        3fd2a6318c69fba342ca26f55555d6fd4088876f0490780c64574df6b9df920c

        SHA512

        956c10a3dd5647164a7c7d1a0c541177169e89e7015aedfa8a2e972db3c2fbb95182c7a61e7fe5450dbedff6bed2887938263afc959581204e1ac0e1c2111bbc

      • C:\Users\Admin\AppData\Local\Temp\u15k.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/1496-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/1496-1-0x0000000002DF0000-0x0000000002EF0000-memory.dmp

        Filesize

        1024KB

      • memory/1496-2-0x0000000004890000-0x00000000048FC000-memory.dmp

        Filesize

        432KB

      • memory/1496-31-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/1496-30-0x0000000000400000-0x0000000002B1B000-memory.dmp

        Filesize

        39.1MB

      • memory/1880-129-0x000001B61EBA0000-0x000001B61EBAA000-memory.dmp

        Filesize

        40KB

      • memory/1880-125-0x000001B67D9D0000-0x000001B67D9D8000-memory.dmp

        Filesize

        32KB

      • memory/1880-108-0x000001B679DF0000-0x000001B67D624000-memory.dmp

        Filesize

        56.2MB

      • memory/1880-109-0x000001B61A460000-0x000001B61A56A000-memory.dmp

        Filesize

        1.0MB

      • memory/1880-110-0x000001B601950000-0x000001B601960000-memory.dmp

        Filesize

        64KB

      • memory/1880-111-0x000001B601970000-0x000001B60197C000-memory.dmp

        Filesize

        48KB

      • memory/1880-112-0x000001B601960000-0x000001B601974000-memory.dmp

        Filesize

        80KB

      • memory/1880-113-0x000001B61A2B0000-0x000001B61A2D4000-memory.dmp

        Filesize

        144KB

      • memory/1880-114-0x000001B61A2E0000-0x000001B61A2EA000-memory.dmp

        Filesize

        40KB

      • memory/1880-115-0x000001B61A300000-0x000001B61A32A000-memory.dmp

        Filesize

        168KB

      • memory/1880-116-0x000001B61A6C0000-0x000001B61A772000-memory.dmp

        Filesize

        712KB

      • memory/1880-117-0x000001B67DA50000-0x000001B67DAA0000-memory.dmp

        Filesize

        320KB

      • memory/1880-118-0x000001B67DAA0000-0x000001B67DAC2000-memory.dmp

        Filesize

        136KB

      • memory/1880-119-0x000001B6018B0000-0x000001B6018BA000-memory.dmp

        Filesize

        40KB

      • memory/1880-123-0x000001B61A770000-0x000001B61AA70000-memory.dmp

        Filesize

        3.0MB

      • memory/1880-137-0x000001B67DA30000-0x000001B67DA4E000-memory.dmp

        Filesize

        120KB

      • memory/1880-126-0x000001B67DAD0000-0x000001B67DB08000-memory.dmp

        Filesize

        224KB

      • memory/1880-127-0x000001B67D9E0000-0x000001B67D9EE000-memory.dmp

        Filesize

        56KB

      • memory/1880-128-0x000001B67DA00000-0x000001B67DA08000-memory.dmp

        Filesize

        32KB

      • memory/1880-136-0x000001B67DBB0000-0x000001B67DC26000-memory.dmp

        Filesize

        472KB

      • memory/1880-130-0x000001B61F490000-0x000001B61F4F2000-memory.dmp

        Filesize

        392KB

      • memory/1880-131-0x000001B61EBB0000-0x000001B61EBD2000-memory.dmp

        Filesize

        136KB

      • memory/1880-132-0x000001B61FA20000-0x000001B61FF48000-memory.dmp

        Filesize

        5.2MB

      • memory/1880-135-0x000001B61EBD0000-0x000001B61EBDC000-memory.dmp

        Filesize

        48KB

      • memory/2240-92-0x0000000000400000-0x0000000002AF9000-memory.dmp

        Filesize

        39.0MB

      • memory/2240-52-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/2240-159-0x0000000000400000-0x0000000002AF9000-memory.dmp

        Filesize

        39.0MB

      • memory/2240-36-0x0000000000400000-0x0000000002AF9000-memory.dmp

        Filesize

        39.0MB

      • memory/2240-173-0x0000000000400000-0x0000000002AF9000-memory.dmp

        Filesize

        39.0MB

      • memory/3804-107-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/3804-93-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB