Analysis

  • max time kernel
    258s
  • max time network
    260s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    09/05/2024, 23:06

General

  • Target
    73cf32b2f6aff72dc11d609f61ebaae2d5827f18c97b48d71fd724c19f394771.exe
  • Size 372KB
  • Sample240509-23d8gsca91
  • SHA256 73cf32b2f6aff72dc11d609f61ebaae2d5827f18c97b48d71fd724c19f394771
  • MD5 SHA1 SHA512 SSDEEP

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).

  • 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 17 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\73cf32b2f6aff72dc11d609f61ebaae2d5827f18c97b48d71fd724c19f394771.exe
    "C:\Users\Admin\AppData\Local\Temp\73cf32b2f6aff72dc11d609f61ebaae2d5827f18c97b48d71fd724c19f394771.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1416
    • C:\Users\Admin\AppData\Local\Temp\u13c.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u13c.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:2416
    • C:\Users\Admin\AppData\Local\Temp\u13c.1.exe
      "C:\Users\Admin\AppData\Local\Temp\u13c.1.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:3156
      • 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:1284

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        Are.docx

        • Path C:\ProgramData\Are.docx
        • Size 11KB
        • SHA256 5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454
        • MD5 SHA1 SHA512 SSDEEP

        mozglue.dll

        • Path C:\ProgramData\mozglue.dll
        • Size 593KB
        • SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
        • MD5 SHA1 SHA512 SSDEEP

        u13c.0.exe

        • Path C:\Users\Admin\AppData\Local\Temp\u13c.0.exe
        • Size 206KB
        • SHA256 211c34660898480e0777c6ef6f61bf2111f6550e00b40cab859543d567dc455a
        • MD5 SHA1 SHA512 SSDEEP

        u13c.1.exe

        • Path C:\Users\Admin\AppData\Local\Temp\u13c.1.exe
        • Size 4.6MB
        • SHA256 4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7
        • MD5 SHA1 SHA512 SSDEEP

        nss3.dll

        • Path \ProgramData\nss3.dll
        • Size 2.0MB
        • SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
        • MD5 SHA1 SHA512 SSDEEP

        memory/1284-106-0x0000018577220000-0x0000018577242000-memory.dmp

        memory/1284-99-0x0000018571ED0000-0x00000185721D0000-memory.dmp

        memory/1284-135-0x0000018577260000-0x000001857727E000-memory.dmp

        memory/1284-114-0x0000018577300000-0x0000018577376000-memory.dmp

        memory/1284-110-0x00000185771B0000-0x00000185771BC000-memory.dmp

        memory/1284-78-0x00000185539D0000-0x0000018557204000-memory.dmp

        memory/1284-85-0x0000018571A10000-0x0000018571B1A000-memory.dmp

        memory/1284-87-0x00000185715D0000-0x00000185715DC000-memory.dmp

        memory/1284-86-0x0000018558EC0000-0x0000018558ED0000-memory.dmp

        memory/1284-88-0x00000185715C0000-0x00000185715D4000-memory.dmp

        memory/1284-89-0x0000018571880000-0x00000185718A4000-memory.dmp

        memory/1284-92-0x0000018571D50000-0x0000018571E02000-memory.dmp

        memory/1284-91-0x00000185718B0000-0x00000185718DA000-memory.dmp

        memory/1284-90-0x00000185715A0000-0x00000185715AA000-memory.dmp

        memory/1284-93-0x0000018571E50000-0x0000018571EA0000-memory.dmp

        memory/1284-94-0x0000018571EA0000-0x0000018571EC2000-memory.dmp

        memory/1284-95-0x00000185715B0000-0x00000185715BA000-memory.dmp

        memory/1284-107-0x0000018577770000-0x0000018577C96000-memory.dmp

        memory/1284-103-0x0000018576070000-0x0000018576078000-memory.dmp

        memory/1284-102-0x0000018576EA0000-0x0000018576ED8000-memory.dmp

        memory/1284-101-0x0000018576010000-0x0000018576018000-memory.dmp

        memory/1284-104-0x00000185771A0000-0x00000185771AA000-memory.dmp

        memory/1284-105-0x00000185771C0000-0x0000018577222000-memory.dmp

        memory/1416-1-0x0000000001B70000-0x0000000001C70000-memory.dmp

        memory/1416-14-0x0000000000400000-0x0000000001A27000-memory.dmp

        memory/1416-15-0x0000000000400000-0x000000000046F000-memory.dmp

        memory/1416-2-0x0000000001B00000-0x0000000001B6C000-memory.dmp

        memory/1416-3-0x0000000000400000-0x000000000046F000-memory.dmp

        memory/2416-49-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        memory/2416-40-0x0000000000400000-0x0000000002AF1000-memory.dmp

        memory/2416-137-0x0000000000400000-0x0000000002AF1000-memory.dmp

        memory/2416-152-0x0000000000400000-0x0000000002AF1000-memory.dmp

        memory/3156-74-0x0000000000400000-0x00000000008AD000-memory.dmp