Analysis

  • max time kernel
    141s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    30/04/2024, 01:24

General

  • Target
    5b9c150e2c1c77bdd1f1f8fa35e9b3ff38d32182e2d0be0e9c438676fd10680c.exe
  • Size 419KB
  • Sample240430-bscc2agc22
  • SHA256 5b9c150e2c1c77bdd1f1f8fa35e9b3ff38d32182e2d0be0e9c438676fd10680c
  • 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
  • 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#.

  • Detect binaries embedding considerable number of MFA browser extension IDs. 1 IoCs
  • Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 1 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
  • Detects encrypted or obfuscated .NET executables 1 IoCs
  • 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\5b9c150e2c1c77bdd1f1f8fa35e9b3ff38d32182e2d0be0e9c438676fd10680c.exe
    "C:\Users\Admin\AppData\Local\Temp\5b9c150e2c1c77bdd1f1f8fa35e9b3ff38d32182e2d0be0e9c438676fd10680c.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1632
    • C:\Users\Admin\AppData\Local\Temp\u19c.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u19c.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:3024
    • C:\Users\Admin\AppData\Local\Temp\u19c.2\run.exe
      "C:\Users\Admin\AppData\Local\Temp\u19c.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:2680
      • 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:3040
        • 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:1944
    • C:\Users\Admin\AppData\Local\Temp\u19c.3.exe
      "C:\Users\Admin\AppData\Local\Temp\u19c.3.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:956
      • 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:1600

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        60628a9db4654501aaf286dff775bad9.tmp

        • Path C:\Users\Admin\AppData\Local\Microsoft\ApplicationInsights\a156d2ee87eeb3012aacff4fcc5518f7fa0b2caa0b97ad5a5e46c2e4fdf8c5f4\60628a9db4654501aaf286dff775bad9.tmp
        • Size 1KB
        • SHA256 328acbd538d72dac28d2561254ce2cfb00b00167c3f47b7ab99c47d10166874c
        • MD5 SHA1 SHA512

        9d35aed

        • Path C:\Users\Admin\AppData\Local\Temp\9d35aed
        • Size 1.4MB
        • SHA256 2467fa09432513eef11da479ef4e95deb25896f316b7243611b90027b567385a
        • MD5 SHA1 SHA512 SSDEEP

        U19C1~1.ZIP

        • Path C:\Users\Admin\AppData\Local\Temp\U19C1~1.ZIP
        • Size 3.7MB
        • SHA256 a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001
        • MD5 SHA1 SHA512 SSDEEP

        ioloDMLog.txt

        • Path C:\Users\Admin\AppData\Local\Temp\iolo\dm\ioloDMLog.txt
        • Size 2KB
        • SHA256 01e17fd720654f42196b156737f1bf884de1f434e0f0348f074c4b811e2aed94
        • MD5 SHA1 SHA512

        tmp436.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmp436.tmp
        • Size 20KB
        • SHA256 4d3f3194cb1133437aa69bb880c8cbb55ddf06ff61a88ca6c3f1bbfbfd35d988
        • MD5 SHA1 SHA512 SSDEEP

        UIxMarketPlugin.dll

        • Path C:\Users\Admin\AppData\Local\Temp\u19c.2\UIxMarketPlugin.dll
        • Size 1.6MB
        • SHA256 cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15
        • MD5 SHA1 SHA512 SSDEEP

        bunch.dat

        • Path C:\Users\Admin\AppData\Local\Temp\u19c.2\bunch.dat
        • Size 1.3MB
        • SHA256 9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742
        • MD5 SHA1 SHA512 SSDEEP

        relay.dll

        • Path C:\Users\Admin\AppData\Local\Temp\u19c.2\relay.dll
        • Size 1.5MB
        • SHA256 7b2db9c88f60ed6dd24b1dec321a304564780fdb191a96ec35c051856128f1ed
        • MD5 SHA1 SHA512 SSDEEP

        run.exe

        • Path C:\Users\Admin\AppData\Local\Temp\u19c.2\run.exe
        • Size 2.4MB
        • SHA256 a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3
        • MD5 SHA1 SHA512 SSDEEP

        whale.dbf

        • Path C:\Users\Admin\AppData\Local\Temp\u19c.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

        u19c.0.exe

        • Path \Users\Admin\AppData\Local\Temp\u19c.0.exe
        • Size 213KB
        • SHA256 5b5172f2d9e29bf1fb37c41a7dedc2d8f837776d5883cd46536d34e914fff228
        • MD5 SHA1 SHA512 SSDEEP

        u19c.3.exe

        • Path \Users\Admin\AppData\Local\Temp\u19c.3.exe
        • Size 4.6MB
        • SHA256 4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7
        • MD5 SHA1 SHA512 SSDEEP

        memory/956-282-0x0000000000400000-0x00000000008AD000-memory.dmp

        memory/1600-298-0x000000001FDE0000-0x00000000200E0000-memory.dmp

        memory/1600-305-0x000000001E010000-0x000000001E01C000-memory.dmp

        memory/1600-309-0x0000000000CD0000-0x0000000000CDA000-memory.dmp

        memory/1600-302-0x000000001DFF0000-0x000000001E012000-memory.dmp

        memory/1600-301-0x00000000011A0000-0x00000000011AA000-memory.dmp

        memory/1600-300-0x0000000000CD0000-0x0000000000CDA000-memory.dmp

        memory/1600-294-0x0000000000AC0000-0x0000000000ACA000-memory.dmp

        memory/1600-293-0x0000000000AE0000-0x0000000000B42000-memory.dmp

        memory/1600-292-0x000000001EDB0000-0x000000001EE2A000-memory.dmp

        memory/1600-291-0x000000001F880000-0x000000001F932000-memory.dmp

        memory/1600-290-0x000000001EB20000-0x000000001EB4A000-memory.dmp

        memory/1600-289-0x000000001EB00000-0x000000001EB0A000-memory.dmp

        memory/1600-283-0x00000000011D0000-0x0000000004AC8000-memory.dmp

        memory/1600-284-0x000000001ECA0000-0x000000001EDB0000-memory.dmp

        memory/1600-285-0x00000000011B0000-0x00000000011C0000-memory.dmp

        memory/1600-286-0x000000001DF60000-0x000000001DF6C000-memory.dmp

        memory/1600-287-0x00000000011C0000-0x00000000011D4000-memory.dmp

        memory/1600-288-0x000000001EAE0000-0x000000001EB04000-memory.dmp

        memory/1632-1-0x0000000000900000-0x0000000000A00000-memory.dmp

        memory/1632-3-0x0000000000400000-0x000000000086B000-memory.dmp

        memory/1632-197-0x0000000000400000-0x000000000086B000-memory.dmp

        memory/1632-2-0x00000000002D0000-0x000000000033D000-memory.dmp

        memory/1632-198-0x0000000000900000-0x0000000000A00000-memory.dmp

        memory/1632-20-0x0000000000400000-0x000000000086B000-memory.dmp

        memory/1632-180-0x0000000000400000-0x000000000086B000-memory.dmp

        memory/1632-181-0x0000000000900000-0x0000000000A00000-memory.dmp

        memory/1944-317-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

        memory/1944-320-0x0000000000400000-0x00000000004C6000-memory.dmp

        memory/1944-312-0x0000000072A90000-0x0000000073AF2000-memory.dmp

        memory/1944-316-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

        memory/2680-172-0x0000000077780000-0x0000000077929000-memory.dmp

        memory/2680-171-0x0000000073B00000-0x0000000073C74000-memory.dmp

        memory/2680-222-0x0000000073B00000-0x0000000073C74000-memory.dmp

        memory/3024-179-0x0000000000400000-0x0000000002AF3000-memory.dmp

        memory/3024-21-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        memory/3040-310-0x0000000073B00000-0x0000000073C74000-memory.dmp

        memory/3040-225-0x0000000077780000-0x0000000077929000-memory.dmp