Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/05/2024, 14:09

General

  • Target
    f0699de74b6274011f91036c3daafc4aae3e49e2210be14ea06a8d478248c151.jar
  • Size 481KB
  • Sample240528-rgk4sshf57
  • SHA256 f0699de74b6274011f91036c3daafc4aae3e49e2210be14ea06a8d478248c151
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • STRRAT

    STRRAT is a remote access tool than can steal credentials and log keystrokes.

  • Drops startup file 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 7 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
    java -jar C:\Users\Admin\AppData\Local\Temp\f0699de74b6274011f91036c3daafc4aae3e49e2210be14ea06a8d478248c151.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3792
    • C:\Windows\system32\icacls.exe
      C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
      2⤵
      • Modifies file permissions
      PID:1780
    • C:\Program Files\Java\jre-1.8\bin\java.exe
      "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\f0699de74b6274011f91036c3daafc4aae3e49e2210be14ea06a8d478248c151.jar"
      2⤵
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1464
      • C:\Windows\SYSTEM32\cmd.exe
        cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\f0699de74b6274011f91036c3daafc4aae3e49e2210be14ea06a8d478248c151.jar"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2420
        • C:\Windows\system32\schtasks.exe
          schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\f0699de74b6274011f91036c3daafc4aae3e49e2210be14ea06a8d478248c151.jar"
          4⤵
          • Creates scheduled task(s)
          PID:2972
      • C:\Program Files\Java\jre-1.8\bin\java.exe
        "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\f0699de74b6274011f91036c3daafc4aae3e49e2210be14ea06a8d478248c151.jar"
        3⤵
        • Loads dropped DLL
        • Accesses Microsoft Outlook profiles
        • Suspicious use of WriteProcessMemory
        • outlook_office_path
        • outlook_win_path
        PID:4848
        • C:\Windows\SYSTEM32\cmd.exe
          cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1696
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:4980
        • C:\Windows\SYSTEM32\cmd.exe
          cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2736
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:3476
        • C:\Windows\SYSTEM32\cmd.exe
          cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1588
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
            5⤵
              PID:4584
          • C:\Windows\SYSTEM32\cmd.exe
            cmd.exe /c "wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:1456
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
              5⤵
                PID:4072
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              powershell.exe "[void][Windows.Security.Credentials.PasswordVault,Windows.Security.Credentials,ContentType=WindowsRuntime] $vault = New-Object Windows.Security.Credentials.PasswordVault $vault.RetrieveAll() | % { $_.RetrievePassword();$_ }"
              4⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:1236

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            3903daac9bc4a3b7.timestamp

            • Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
            • Size 46B
            • SHA256 ddf2c1968ceb4a07132b6002589d6ae9893429dee91f68f1e8269707ee2e3678
            • MD5 SHA1 SHA512

            __PSScriptPolicyTest_rk0nwhcv.wvc.ps1

            • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rk0nwhcv.wvc.ps1
            • Size 60B
            • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
            • MD5 SHA1 SHA512

            jna2218406910595833726.dll

            • Path C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna2218406910595833726.dll
            • Size 241KB
            • SHA256 a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
            • MD5 SHA1 SHA512 SSDEEP

            sqlite-3.14.2.1-7dc42ee2-3932-4194-ad4f-83648f8e305a-sqlitejdbc.dll

            • Path C:\Users\Admin\AppData\Local\Temp\sqlite-3.14.2.1-7dc42ee2-3932-4194-ad4f-83648f8e305a-sqlitejdbc.dll
            • Size 914KB
            • SHA256 05a8557f5d197aca468f5272a2a869293cb11c2f0ab4839a17f144f9a5d0b77d
            • MD5 SHA1 SHA512 SSDEEP

            83aa4cc77f591dfc2374580bbd95f6ba_4d0966de-9ba4-4ee9-b282-eaf9cf9c9160

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-4018855536-2201274732-320770143-1000\83aa4cc77f591dfc2374580bbd95f6ba_4d0966de-9ba4-4ee9-b282-eaf9cf9c9160
            • Size 45B
            • SHA256 11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238
            • MD5 SHA1 SHA512

            f0699de74b6274011f91036c3daafc4aae3e49e2210be14ea06a8d478248c151.jar

            • Path C:\Users\Admin\f0699de74b6274011f91036c3daafc4aae3e49e2210be14ea06a8d478248c151.jar
            • Size 481KB
            • SHA256 f0699de74b6274011f91036c3daafc4aae3e49e2210be14ea06a8d478248c151
            • MD5 SHA1 SHA512 SSDEEP

            jna-5.5.0.jar

            • Path C:\Users\Admin\lib\jna-5.5.0.jar
            • Size 1.4MB
            • SHA256 b308faebfe4ed409de8410e0a632d164b2126b035f6eacff968d3908cafb4d9e
            • MD5 SHA1 SHA512 SSDEEP

            jna-platform-5.5.0.jar

            • Path C:\Users\Admin\lib\jna-platform-5.5.0.jar
            • Size 2.6MB
            • SHA256 24d81621f82ac29fcdd9a74116031f5907a2343158e616f4573bbfa2434ae0d5
            • MD5 SHA1 SHA512 SSDEEP

            sqlite-jdbc-3.14.2.1.jar

            • Path C:\Users\Admin\lib\sqlite-jdbc-3.14.2.1.jar
            • Size 4.1MB
            • SHA256 2eae3dea1c3dde6104c49f9601074b6038ff6abcf3be23f4b56f6720a4f6a491
            • MD5 SHA1 SHA512 SSDEEP

            system-hook-3.5.jar

            • Path C:\Users\Admin\lib\system-hook-3.5.jar
            • Size 772KB
            • SHA256 2ddda8af6faef8bde46acf43ec546603180bcf8dcb2e5591fff8ac9cd30b5609
            • MD5 SHA1 SHA512 SSDEEP

            memory/1464-291-0x000001A514080000-0x000001A514081000-memory.dmp

            memory/3792-108-0x000001E022710000-0x000001E022720000-memory.dmp

            memory/3792-75-0x000001E0225A0000-0x000001E0225B0000-memory.dmp

            memory/3792-29-0x000001E022570000-0x000001E022580000-memory.dmp

            memory/3792-42-0x000001E0225D0000-0x000001E0225E0000-memory.dmp

            memory/3792-41-0x000001E022510000-0x000001E022520000-memory.dmp

            memory/3792-40-0x000001E022290000-0x000001E022500000-memory.dmp

            memory/3792-44-0x000001E0225E0000-0x000001E0225F0000-memory.dmp

            memory/3792-43-0x000001E022500000-0x000001E022510000-memory.dmp

            memory/3792-37-0x000001E0225B0000-0x000001E0225C0000-memory.dmp

            memory/3792-36-0x000001E0225C0000-0x000001E0225D0000-memory.dmp

            memory/3792-35-0x000001E0225A0000-0x000001E0225B0000-memory.dmp

            memory/3792-32-0x000001E022590000-0x000001E0225A0000-memory.dmp

            memory/3792-45-0x000001E022270000-0x000001E022271000-memory.dmp

            memory/3792-48-0x000001E0225F0000-0x000001E022600000-memory.dmp

            memory/3792-47-0x000001E022520000-0x000001E022530000-memory.dmp

            memory/3792-50-0x000001E022530000-0x000001E022540000-memory.dmp

            memory/3792-51-0x000001E022600000-0x000001E022610000-memory.dmp

            memory/3792-54-0x000001E022550000-0x000001E022560000-memory.dmp

            memory/3792-53-0x000001E022540000-0x000001E022550000-memory.dmp

            memory/3792-55-0x000001E022610000-0x000001E022620000-memory.dmp

            memory/3792-117-0x000001E022620000-0x000001E022630000-memory.dmp

            memory/3792-62-0x000001E022620000-0x000001E022630000-memory.dmp

            memory/3792-66-0x000001E022630000-0x000001E022640000-memory.dmp

            memory/3792-65-0x000001E022580000-0x000001E022590000-memory.dmp

            memory/3792-64-0x000001E022570000-0x000001E022580000-memory.dmp

            memory/3792-69-0x000001E022590000-0x000001E0225A0000-memory.dmp

            memory/3792-71-0x000001E022650000-0x000001E022660000-memory.dmp

            memory/3792-70-0x000001E022640000-0x000001E022650000-memory.dmp

            memory/3792-78-0x000001E022670000-0x000001E022680000-memory.dmp

            memory/3792-77-0x000001E022660000-0x000001E022670000-memory.dmp

            memory/3792-76-0x000001E0225C0000-0x000001E0225D0000-memory.dmp

            memory/3792-118-0x000001E022740000-0x000001E022750000-memory.dmp

            memory/3792-83-0x000001E022690000-0x000001E0226A0000-memory.dmp

            memory/3792-82-0x000001E022680000-0x000001E022690000-memory.dmp

            memory/3792-81-0x000001E0225B0000-0x000001E0225C0000-memory.dmp

            memory/3792-89-0x000001E0226C0000-0x000001E0226D0000-memory.dmp

            memory/3792-88-0x000001E0226B0000-0x000001E0226C0000-memory.dmp

            memory/3792-87-0x000001E0226A0000-0x000001E0226B0000-memory.dmp

            memory/3792-86-0x000001E0225D0000-0x000001E0225E0000-memory.dmp

            memory/3792-93-0x000001E0225E0000-0x000001E0225F0000-memory.dmp

            memory/3792-94-0x000001E0226D0000-0x000001E0226E0000-memory.dmp

            memory/3792-95-0x000001E022270000-0x000001E022271000-memory.dmp

            memory/3792-101-0x000001E0226E0000-0x000001E0226F0000-memory.dmp

            memory/3792-102-0x000001E0226F0000-0x000001E022700000-memory.dmp

            memory/3792-119-0x000001E022750000-0x000001E022760000-memory.dmp

            memory/3792-109-0x000001E022720000-0x000001E022730000-memory.dmp

            memory/3792-113-0x000001E022730000-0x000001E022740000-memory.dmp

            memory/3792-112-0x000001E022610000-0x000001E022620000-memory.dmp

            memory/3792-25-0x000001E022560000-0x000001E022570000-memory.dmp

            memory/3792-107-0x000001E022700000-0x000001E022710000-memory.dmp

            memory/3792-106-0x000001E022600000-0x000001E022610000-memory.dmp

            memory/3792-120-0x000001E022760000-0x000001E022770000-memory.dmp

            memory/3792-100-0x000001E0225F0000-0x000001E022600000-memory.dmp

            memory/3792-30-0x000001E022580000-0x000001E022590000-memory.dmp

            memory/3792-61-0x000001E022560000-0x000001E022570000-memory.dmp

            memory/3792-123-0x000001E022270000-0x000001E022271000-memory.dmp

            memory/3792-126-0x000001E022770000-0x000001E022780000-memory.dmp

            memory/3792-125-0x000001E022630000-0x000001E022640000-memory.dmp

            memory/3792-127-0x000001E022270000-0x000001E022271000-memory.dmp

            memory/3792-129-0x000001E022640000-0x000001E022650000-memory.dmp

            memory/3792-130-0x000001E022650000-0x000001E022660000-memory.dmp

            memory/3792-131-0x000001E022780000-0x000001E022790000-memory.dmp

            memory/3792-133-0x000001E022660000-0x000001E022670000-memory.dmp

            memory/3792-134-0x000001E022670000-0x000001E022680000-memory.dmp

            memory/3792-135-0x000001E022790000-0x000001E0227A0000-memory.dmp

            memory/3792-137-0x000001E022680000-0x000001E022690000-memory.dmp

            memory/3792-139-0x000001E0227A0000-0x000001E0227B0000-memory.dmp

            memory/3792-138-0x000001E022690000-0x000001E0226A0000-memory.dmp

            memory/3792-145-0x000001E0227B0000-0x000001E0227C0000-memory.dmp

            memory/3792-144-0x000001E0226C0000-0x000001E0226D0000-memory.dmp

            memory/3792-143-0x000001E0226B0000-0x000001E0226C0000-memory.dmp

            memory/3792-142-0x000001E0226A0000-0x000001E0226B0000-memory.dmp

            memory/3792-147-0x000001E022270000-0x000001E022271000-memory.dmp

            memory/3792-149-0x000001E0227C0000-0x000001E0227D0000-memory.dmp

            memory/3792-148-0x000001E0226D0000-0x000001E0226E0000-memory.dmp

            memory/3792-154-0x000001E0227D0000-0x000001E0227E0000-memory.dmp

            memory/3792-153-0x000001E0226F0000-0x000001E022700000-memory.dmp

            memory/3792-152-0x000001E0226E0000-0x000001E0226F0000-memory.dmp

            memory/3792-156-0x000001E022700000-0x000001E022710000-memory.dmp

            memory/3792-158-0x000001E022720000-0x000001E022730000-memory.dmp

            memory/3792-159-0x000001E0227E0000-0x000001E0227F0000-memory.dmp

            memory/3792-157-0x000001E022710000-0x000001E022720000-memory.dmp

            memory/3792-162-0x000001E0227F0000-0x000001E022800000-memory.dmp

            memory/3792-161-0x000001E022730000-0x000001E022740000-memory.dmp

            memory/3792-167-0x000001E022800000-0x000001E022810000-memory.dmp

            memory/3792-166-0x000001E022760000-0x000001E022770000-memory.dmp

            memory/3792-165-0x000001E022750000-0x000001E022760000-memory.dmp

            memory/3792-164-0x000001E022740000-0x000001E022750000-memory.dmp

            memory/3792-171-0x000001E022770000-0x000001E022780000-memory.dmp

            memory/3792-169-0x000001E022270000-0x000001E022271000-memory.dmp

            memory/3792-174-0x000001E022810000-0x000001E022820000-memory.dmp

            memory/3792-181-0x000001E022270000-0x000001E022271000-memory.dmp

            memory/3792-183-0x000001E022780000-0x000001E022790000-memory.dmp

            memory/3792-22-0x000001E022540000-0x000001E022550000-memory.dmp

            memory/3792-23-0x000001E022550000-0x000001E022560000-memory.dmp

            memory/3792-20-0x000001E022530000-0x000001E022540000-memory.dmp

            memory/3792-186-0x000001E022790000-0x000001E0227A0000-memory.dmp

            memory/3792-187-0x000001E022820000-0x000001E022830000-memory.dmp

            memory/3792-188-0x000001E022270000-0x000001E022271000-memory.dmp

            memory/3792-189-0x000001E0225B0000-0x000001E0225C0000-memory.dmp

            memory/3792-2-0x000001E022290000-0x000001E022500000-memory.dmp

            memory/3792-15-0x000001E022500000-0x000001E022510000-memory.dmp

            memory/3792-16-0x000001E022510000-0x000001E022520000-memory.dmp

            memory/3792-17-0x000001E022520000-0x000001E022530000-memory.dmp

            memory/4848-375-0x000001EBA8E80000-0x000001EBA8E81000-memory.dmp

            memory/4848-405-0x000001EBA8E80000-0x000001EBA8E81000-memory.dmp

            memory/4848-358-0x000001EBA8E80000-0x000001EBA8E81000-memory.dmp

            memory/4848-423-0x0000000061680000-0x000000006176D000-memory.dmp