Analysis

  • max time kernel
    142s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/12/2023, 00:56

General

  • Target
    file.exe
  • Size 959KB
  • Sample231209-bac7lsfdb3
  • SHA256 e0da66ded237096309adb9855d066caccfd6a8feffc3460f8430ef340505f9e1
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • risepro

C2
  • 193.233.132.51

Signatures

  • PrivateLoader

    PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

  • RisePro

    RisePro stealer is an infostealer distributed by PrivateLoader.

  • Drops startup file 1 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Looks up external IP address via web service 2 IoCs

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

  • Drops file in System32 directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Drops startup file
    • Accesses Microsoft Outlook profiles
    • Adds Run key to start application
    • Drops file in System32 directory
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:4572
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 HR" /sc HOURLY /rl HIGHEST
      2⤵
      • Creates scheduled task(s)
      PID:3320
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 LG" /sc ONLOGON /rl HIGHEST
      2⤵
      • Creates scheduled task(s)
      PID:4760
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4572 -s 1824
      2⤵
      • Program crash
      PID:2968
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
    1⤵
      PID:4116
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
      1⤵
        PID:3992
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4572 -ip 4572
        1⤵
          PID:4400
        • C:\Windows\system32\rundll32.exe
          "C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
          1⤵
            PID:2272
          • C:\Windows\System32\svchost.exe
            C:\Windows\System32\svchost.exe -k UnistackSvcGroup
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1884

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                OfficeTrackerNMP131.exe

                • Path C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe
                • Size 959KB
                • SHA256 e0da66ded237096309adb9855d066caccfd6a8feffc3460f8430ef340505f9e1
                • MD5 SHA1 SHA512 SSDEEP

                store.jfm

                • Path C:\Users\Admin\AppData\Local\Comms\UnistoreDB\store.jfm
                • Size 16KB
                • SHA256 2e9e25f4752f076552e1e084209d7f370028fee915e153b39567ea7d6e504c04
                • MD5 SHA1 SHA512 SSDEEP

                information.txt

                • Path C:\Users\Admin\AppData\Local\Temp\grandUIAn0Ru_cDlf4GZ2\information.txt
                • Size 3KB
                • SHA256 6097288f2ad2010fc685f5a4f922380e9c24c41c9d97ca213f419c0724ecae41
                • MD5 SHA1 SHA512

                memory/1884-120-0x0000021ECF340000-0x0000021ECF341000-memory.dmp

                memory/1884-122-0x0000021ECF340000-0x0000021ECF341000-memory.dmp

                memory/1884-151-0x0000021ECF1C0000-0x0000021ECF1C1000-memory.dmp

                memory/1884-150-0x0000021ECF0B0000-0x0000021ECF0B1000-memory.dmp

                memory/1884-83-0x0000021EC6C40000-0x0000021EC6C50000-memory.dmp

                memory/1884-99-0x0000021EC6D40000-0x0000021EC6D50000-memory.dmp

                memory/1884-115-0x0000021ECF320000-0x0000021ECF321000-memory.dmp

                memory/1884-116-0x0000021ECF340000-0x0000021ECF341000-memory.dmp

                memory/1884-117-0x0000021ECF340000-0x0000021ECF341000-memory.dmp

                memory/1884-118-0x0000021ECF340000-0x0000021ECF341000-memory.dmp

                memory/1884-119-0x0000021ECF340000-0x0000021ECF341000-memory.dmp

                memory/1884-149-0x0000021ECF0B0000-0x0000021ECF0B1000-memory.dmp

                memory/1884-121-0x0000021ECF340000-0x0000021ECF341000-memory.dmp

                memory/1884-147-0x0000021ECF0A0000-0x0000021ECF0A1000-memory.dmp

                memory/1884-123-0x0000021ECF340000-0x0000021ECF341000-memory.dmp

                memory/1884-124-0x0000021ECF340000-0x0000021ECF341000-memory.dmp

                memory/1884-125-0x0000021ECF340000-0x0000021ECF341000-memory.dmp

                memory/1884-126-0x0000021ECEF70000-0x0000021ECEF71000-memory.dmp

                memory/1884-127-0x0000021ECEF60000-0x0000021ECEF61000-memory.dmp

                memory/1884-129-0x0000021ECEF70000-0x0000021ECEF71000-memory.dmp

                memory/1884-132-0x0000021ECEF60000-0x0000021ECEF61000-memory.dmp

                memory/1884-135-0x0000021ECEEA0000-0x0000021ECEEA1000-memory.dmp

                memory/4572-2-0x0000000002810000-0x00000000029A5000-memory.dmp

                memory/4572-3-0x0000000000400000-0x0000000000912000-memory.dmp

                memory/4572-1-0x0000000002730000-0x0000000002801000-memory.dmp

                memory/4572-82-0x0000000002810000-0x00000000029A5000-memory.dmp

                memory/4572-80-0x0000000000400000-0x0000000000912000-memory.dmp