Analysis

  • max time kernel
    139s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    28/04/2024, 02:36

General

  • Target
    030ce11b0e84ce80588a196edd25a6f6.exe
  • Size 455KB
  • Sample240428-c3kylaef8x
  • SHA256 a928541a7b5b5732341dcb71c0ee2b98d181da422430923781d7dbb97b693645
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • stealc

C2
  • http://185.172.128.62

Attributes
  • url_path

    /902e53a07830e030.php

Signatures

  • Detect ZGRat V1 3 IoCs
  • SectopRAT

    SectopRAT is a remote access trojan first seen in November 2019.

  • SectopRAT payload 1 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 3 IoCs
  • Loads dropped DLL 16 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.

  • Suspicious use of SetThreadContext 2 IoCs
  • 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 12 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\030ce11b0e84ce80588a196edd25a6f6.exe
    "C:\Users\Admin\AppData\Local\Temp\030ce11b0e84ce80588a196edd25a6f6.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2868
    • C:\Users\Admin\AppData\Local\Temp\u27o.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u27o.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:2564
    • C:\Users\Admin\AppData\Local\Temp\u27o.2\run.exe
      "C:\Users\Admin\AppData\Local\Temp\u27o.2\run.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2760
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\SysWOW64\cmd.exe
        3⤵
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:1924
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
          C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2720
    • C:\Users\Admin\AppData\Local\Temp\u27o.3.exe
      "C:\Users\Admin\AppData\Local\Temp\u27o.3.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:1256
      • 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:3004

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        4be6d339390640f0bf78f1574ad5b776.tmp

        • Path C:\Users\Admin\AppData\Local\Microsoft\ApplicationInsights\049b7335d372bd07248452d0b58e37cfb8420ac5b148b226adcb19ae95655a7b\4be6d339390640f0bf78f1574ad5b776.tmp
        • Size 1KB
        • SHA256 2ed341fe9ca16c163bf83be6172d3f11fd016749f66f7deb3ed3a7b8016e6344
        • MD5 SHA1 SHA512

        U27O1~1.ZIP

        • Path C:\Users\Admin\AppData\Local\Temp\U27O1~1.ZIP
        • Size 3.7MB
        • SHA256 a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001
        • MD5 SHA1 SHA512 SSDEEP

        d43d2bbe

        • Path C:\Users\Admin\AppData\Local\Temp\d43d2bbe
        • Size 1.4MB
        • SHA256 e2ee51b4f3d89a6661d3b8037ce2f7ec17a4d67e0af0692598f517459d78730c
        • MD5 SHA1 SHA512 SSDEEP

        ioloDMLog.txt

        • Path C:\Users\Admin\AppData\Local\Temp\iolo\dm\ioloDMLog.txt
        • Size 2KB
        • SHA256 3e970930074d5fdbf0f5b44b439644ec342303b60d04a8d393d3e9ff6b1ac4c1
        • MD5 SHA1 SHA512

        ioloDMLog.txt

        • Path C:\Users\Admin\AppData\Local\Temp\iolo\dm\ioloDMLog.txt
        • Size 3KB
        • SHA256 a2f7ac64a37e3b4318b4f921cb9a7577a192a83d51dd93253c660aeb2250f19e
        • MD5 SHA1 SHA512

        tmpBBA2.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmpBBA2.tmp
        • Size 20KB
        • SHA256 4d3f3194cb1133437aa69bb880c8cbb55ddf06ff61a88ca6c3f1bbfbfd35d988
        • MD5 SHA1 SHA512 SSDEEP

        UIxMarketPlugin.dll

        • Path C:\Users\Admin\AppData\Local\Temp\u27o.2\UIxMarketPlugin.dll
        • Size 1.6MB
        • SHA256 cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15
        • MD5 SHA1 SHA512 SSDEEP

        bunch.dat

        • Path C:\Users\Admin\AppData\Local\Temp\u27o.2\bunch.dat
        • Size 1.3MB
        • SHA256 9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742
        • MD5 SHA1 SHA512 SSDEEP

        relay.dll

        • Path C:\Users\Admin\AppData\Local\Temp\u27o.2\relay.dll
        • Size 1.5MB
        • SHA256 7b2db9c88f60ed6dd24b1dec321a304564780fdb191a96ec35c051856128f1ed
        • MD5 SHA1 SHA512 SSDEEP

        run.exe

        • Path C:\Users\Admin\AppData\Local\Temp\u27o.2\run.exe
        • Size 2.4MB
        • SHA256 a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3
        • MD5 SHA1 SHA512 SSDEEP

        whale.dbf

        • Path C:\Users\Admin\AppData\Local\Temp\u27o.2\whale.dbf
        • Size 85KB
        • SHA256 b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422
        • MD5 SHA1 SHA512 SSDEEP

        mozglue.dll

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

        nss3.dll

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

        u27o.0.exe

        • Path \Users\Admin\AppData\Local\Temp\u27o.0.exe
        • Size 226KB
        • SHA256 eeaa177b0bc2d85cf8b416c2ed3b85fd50bd7c811bf41a32d161a10a767c2fda
        • MD5 SHA1 SHA512 SSDEEP

        u27o.3.exe

        • Path \Users\Admin\AppData\Local\Temp\u27o.3.exe
        • Size 4.6MB
        • SHA256 4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7
        • MD5 SHA1 SHA512 SSDEEP

        memory/1256-267-0x0000000000400000-0x00000000008AD000-memory.dmp

        memory/1256-278-0x0000000000400000-0x00000000008AD000-memory.dmp

        memory/1924-195-0x0000000077490000-0x0000000077639000-memory.dmp

        memory/1924-309-0x0000000074050000-0x00000000741C4000-memory.dmp

        memory/2564-119-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        memory/2564-305-0x0000000000400000-0x000000000083A000-memory.dmp

        memory/2564-21-0x00000000003A0000-0x00000000003C7000-memory.dmp

        memory/2564-188-0x0000000000400000-0x000000000083A000-memory.dmp

        memory/2564-304-0x0000000000230000-0x0000000000330000-memory.dmp

        memory/2564-288-0x0000000000400000-0x000000000083A000-memory.dmp

        memory/2564-20-0x0000000000230000-0x0000000000330000-memory.dmp

        memory/2564-22-0x0000000000400000-0x000000000083A000-memory.dmp

        memory/2720-318-0x0000000000400000-0x00000000004C6000-memory.dmp

        memory/2720-312-0x0000000072A10000-0x0000000073A72000-memory.dmp

        memory/2720-314-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

        memory/2720-313-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

        memory/2760-113-0x0000000077490000-0x0000000077639000-memory.dmp

        memory/2760-112-0x0000000074050000-0x00000000741C4000-memory.dmp

        memory/2760-162-0x0000000074050000-0x00000000741C4000-memory.dmp

        memory/2868-161-0x0000000001B50000-0x0000000001C50000-memory.dmp

        memory/2868-1-0x0000000001B50000-0x0000000001C50000-memory.dmp

        memory/2868-3-0x0000000000400000-0x0000000001A3D000-memory.dmp

        memory/2868-160-0x0000000000400000-0x0000000001A3D000-memory.dmp

        memory/2868-2-0x0000000000230000-0x000000000029D000-memory.dmp

        memory/3004-284-0x0000000000D00000-0x0000000000D24000-memory.dmp

        memory/3004-287-0x0000000005A50000-0x0000000005A7A000-memory.dmp

        memory/3004-292-0x00000000005E0000-0x00000000005EA000-memory.dmp

        memory/3004-296-0x000000001FF60000-0x0000000020260000-memory.dmp

        memory/3004-299-0x0000000005AA0000-0x0000000005AC2000-memory.dmp

        memory/3004-298-0x0000000005A90000-0x0000000005A9A000-memory.dmp

        memory/3004-302-0x0000000005AC0000-0x0000000005ACC000-memory.dmp

        memory/3004-289-0x000000001E230000-0x000000001E2E2000-memory.dmp

        memory/3004-290-0x0000000000560000-0x00000000005DA000-memory.dmp

        memory/3004-291-0x0000000000B20000-0x0000000000B82000-memory.dmp

        memory/3004-310-0x0000000000600000-0x000000000060A000-memory.dmp

        memory/3004-286-0x0000000005A30000-0x0000000005A3A000-memory.dmp

        memory/3004-283-0x0000000000CD0000-0x0000000000CE4000-memory.dmp

        memory/3004-281-0x0000000000CC0000-0x0000000000CD0000-memory.dmp

        memory/3004-282-0x0000000000CE0000-0x0000000000CEC000-memory.dmp

        memory/3004-280-0x000000001F0A0000-0x000000001F1B0000-memory.dmp

        memory/3004-279-0x0000000000D20000-0x0000000004618000-memory.dmp