Analysis

  • max time kernel
    136s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-05-2024 07:01

General

  • Target

    ca8f3234eb88ef2ca235fab589b6ed6c6f4ba325362406a8c2be805aab533abb.exe

  • Size

    416KB

  • MD5

    8eee452175c00f555ef34226bb683ed5

  • SHA1

    ebf81e89cba4d9006bada1704693f05d4f7123ab

  • SHA256

    ca8f3234eb88ef2ca235fab589b6ed6c6f4ba325362406a8c2be805aab533abb

  • SHA512

    eb742053469c96107e4849286ce15b60f606e8dffc3d57c0857fb26ee3b9b6f8bab516989c5afe3c1786c60fdc2a33ffe17024533daf3281ed105b0fc5f7d29f

  • SSDEEP

    6144:uE9fYb7tyBIBFPOofY+dZLomCu9PVDro/rTsKIknXjrxPmHQTNWekuMil:uEeHtJBFNYnKJro/rIKdXjF+w8Hul

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\ca8f3234eb88ef2ca235fab589b6ed6c6f4ba325362406a8c2be805aab533abb.exe
    "C:\Users\Admin\AppData\Local\Temp\ca8f3234eb88ef2ca235fab589b6ed6c6f4ba325362406a8c2be805aab533abb.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:212
    • C:\Users\Admin\AppData\Local\Temp\u5w.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u5w.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:3800
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3800 -s 2372
        3⤵
        • Program crash
        PID:116
    • C:\Users\Admin\AppData\Local\Temp\u5w.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u5w.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:1856
      • 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:4480
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 212 -s 1148
      2⤵
      • Program crash
      PID:2000
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 212 -ip 212
    1⤵
      PID:3476
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 3800 -ip 3800
      1⤵
        PID:1436

      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

        bc51a4631217be7593e4e539b3a5853f

        SHA1

        56f5999d6ab5b4559393d2922c669ba72f19db08

        SHA256

        84105058b6f9608baea0e80ca0322002781711a1cce3a0bb74d7004bbc370ac2

        SHA512

        655dfa94fe5073330ea7b6b4d6096c970c5db15e48c74cd4c25473337c4c38b1562645c63957e39474033de8a110aab38341d5c0e1f05e0ff8f597832dde2653

      • C:\Users\Admin\AppData\Local\Temp\u5w.0.exe

        Filesize

        275KB

        MD5

        83493b3717b3e54113b89fe0e5b765a1

        SHA1

        0e0b8f1f0a18258e9130f151c06b163418f7a90e

        SHA256

        3cf852a87b37cd494844030de64eec372931b19570a10e0896fc18c94bb99627

        SHA512

        85dd3e6cfc6ed41fe045627d5f701455d94320e7ad21e2ffaff55607b390224e70b2923c2e327e68463fe91a84755fc04f3e3e753720c7d0ede53ba129df0121

      • C:\Users\Admin\AppData\Local\Temp\u5w.1.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/212-28-0x0000000000400000-0x0000000002B25000-memory.dmp

        Filesize

        39.1MB

      • memory/212-29-0x0000000002C00000-0x0000000002C6C000-memory.dmp

        Filesize

        432KB

      • memory/212-1-0x0000000002CC0000-0x0000000002DC0000-memory.dmp

        Filesize

        1024KB

      • memory/212-30-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/212-13-0x0000000000400000-0x0000000002B25000-memory.dmp

        Filesize

        39.1MB

      • memory/212-3-0x0000000000400000-0x000000000046F000-memory.dmp

        Filesize

        444KB

      • memory/212-2-0x0000000002C00000-0x0000000002C6C000-memory.dmp

        Filesize

        432KB

      • memory/1856-51-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/1856-62-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/3800-178-0x0000000000400000-0x0000000002B02000-memory.dmp

        Filesize

        39.0MB

      • memory/3800-93-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/3800-92-0x0000000000400000-0x0000000002B02000-memory.dmp

        Filesize

        39.0MB

      • memory/4480-71-0x0000025E63CA0000-0x0000025E63D52000-memory.dmp

        Filesize

        712KB

      • memory/4480-84-0x0000025E68200000-0x0000025E6820A000-memory.dmp

        Filesize

        40KB

      • memory/4480-69-0x0000025E4AE90000-0x0000025E4AE9A000-memory.dmp

        Filesize

        40KB

      • memory/4480-72-0x0000025E63DA0000-0x0000025E63DF0000-memory.dmp

        Filesize

        320KB

      • memory/4480-73-0x0000025E63DF0000-0x0000025E63E12000-memory.dmp

        Filesize

        136KB

      • memory/4480-74-0x0000025E4AEA0000-0x0000025E4AEAA000-memory.dmp

        Filesize

        40KB

      • memory/4480-78-0x0000025E63E20000-0x0000025E64120000-memory.dmp

        Filesize

        3.0MB

      • memory/4480-80-0x0000025E67A70000-0x0000025E67A78000-memory.dmp

        Filesize

        32KB

      • memory/4480-81-0x0000025E68180000-0x0000025E681B8000-memory.dmp

        Filesize

        224KB

      • memory/4480-82-0x0000025E68140000-0x0000025E6814E000-memory.dmp

        Filesize

        56KB

      • memory/4480-83-0x0000025E68160000-0x0000025E68168000-memory.dmp

        Filesize

        32KB

      • memory/4480-70-0x0000025E63C70000-0x0000025E63C9A000-memory.dmp

        Filesize

        168KB

      • memory/4480-85-0x0000025E692F0000-0x0000025E69352000-memory.dmp

        Filesize

        392KB

      • memory/4480-86-0x0000025E69060000-0x0000025E69082000-memory.dmp

        Filesize

        136KB

      • memory/4480-87-0x0000025E69880000-0x0000025E69DA8000-memory.dmp

        Filesize

        5.2MB

      • memory/4480-90-0x0000025E69090000-0x0000025E6909C000-memory.dmp

        Filesize

        48KB

      • memory/4480-91-0x0000025E69160000-0x0000025E691D6000-memory.dmp

        Filesize

        472KB

      • memory/4480-68-0x0000025E637B0000-0x0000025E637D4000-memory.dmp

        Filesize

        144KB

      • memory/4480-67-0x0000025E63730000-0x0000025E63744000-memory.dmp

        Filesize

        80KB

      • memory/4480-135-0x0000025E64140000-0x0000025E6415E000-memory.dmp

        Filesize

        120KB

      • memory/4480-65-0x0000025E635F0000-0x0000025E63600000-memory.dmp

        Filesize

        64KB

      • memory/4480-66-0x0000025E63750000-0x0000025E6375C000-memory.dmp

        Filesize

        48KB

      • memory/4480-64-0x0000025E63A20000-0x0000025E63B2A000-memory.dmp

        Filesize

        1.0MB

      • memory/4480-63-0x0000025E45990000-0x0000025E491C4000-memory.dmp

        Filesize

        56.2MB