Analysis

  • max time kernel
    91s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/01/2023, 10:31

General

  • Target
    SecuriteInfo.com.Trojan.DownLoaderNET.535.21571.10321.exe
  • Size 11.0MB
  • Sample230118-mkdfxabe5y
  • SHA256 8aec272dd17b671df1658d76d8513ac93124abb7d587979ac585c843d2feeeb6
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownLoaderNET.535.21571.10321.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownLoaderNET.535.21571.10321.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2776
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAANQAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2436
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c powershell -ENC cwBlAHQALQBtAHAAcAByAGUAZgBlAHIAZQBuAGMAZQAgAC0AZQB4AGMAbAB1AHMAaQBvAG4AcABhAHQAaAAgAEMAOgBcAA==
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4852
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -ENC cwBlAHQALQBtAHAAcAByAGUAZgBlAHIAZQBuAGMAZQAgAC0AZQB4AGMAbAB1AHMAaQBvAG4AcABhAHQAaAAgAEMAOgBcAA==
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3980
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      2⤵
        PID:3204
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        2⤵
          PID:3788
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          2⤵
          • Accesses Microsoft Outlook profiles
          • Checks processor information in registry
          • Suspicious use of AdjustPrivilegeToken
          • outlook_office_path
          • outlook_win_path
          PID:752

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            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

            ModuleAnalysisCache

            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache
            • Size 53KB
            • SHA256 474813b625f00710f29fa3b488235a6a22201851efb336bddf60d7d24a66bfba
            • MD5 SHA1 SHA512 SSDEEP

            StartupProfileData-NonInteractive

            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
            • Size 16KB
            • SHA256 4eec0755b0f37f50711fc0e77802c71ac1a472de933f0a8279aa6baadb4312eb
            • MD5 SHA1 SHA512 SSDEEP

            memory/752-160-0x00000000029C0000-0x00000000029D2000-memory.dmp

            memory/752-152-0x0000000000400000-0x00000000004C2000-memory.dmp

            memory/752-159-0x0000000002990000-0x000000000299A000-memory.dmp

            memory/2436-140-0x0000000005540000-0x00000000055A6000-memory.dmp

            memory/2436-141-0x00000000055B0000-0x0000000005616000-memory.dmp

            memory/2436-142-0x0000000005C30000-0x0000000005C4E000-memory.dmp

            memory/2436-143-0x0000000007270000-0x00000000078EA000-memory.dmp

            memory/2436-144-0x0000000006140000-0x000000000615A000-memory.dmp

            memory/2436-139-0x0000000004EA0000-0x00000000054C8000-memory.dmp

            memory/2436-138-0x00000000022E0000-0x0000000002316000-memory.dmp

            memory/2776-136-0x0000000006CC0000-0x0000000006CE2000-memory.dmp

            memory/2776-132-0x0000000000820000-0x0000000000828000-memory.dmp

            memory/2776-135-0x00000000051D0000-0x00000000051DA000-memory.dmp

            memory/2776-134-0x0000000005250000-0x00000000052E2000-memory.dmp

            memory/2776-133-0x0000000005800000-0x0000000005DA4000-memory.dmp

            memory/3980-154-0x0000000007050000-0x0000000007082000-memory.dmp

            memory/3980-155-0x000000006F1F0000-0x000000006F23C000-memory.dmp

            memory/3980-156-0x0000000006600000-0x000000000661E000-memory.dmp

            memory/3980-157-0x0000000007420000-0x000000000742A000-memory.dmp

            memory/3980-158-0x0000000007610000-0x00000000076A6000-memory.dmp

            memory/3980-161-0x0000000005320000-0x000000000532E000-memory.dmp

            memory/3980-162-0x00000000075B0000-0x00000000075CA000-memory.dmp

            memory/3980-163-0x0000000007410000-0x0000000007418000-memory.dmp