Overview

overview

10

Static

static

10

99bc5e8213...7f.exe

windows7-x64

10

99bc5e8213...7f.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    99s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-11-2022 09:09

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General

  • Target

    99bc5e82135557b8e571b2deab9f297f.exe

  • Size

    136KB

  • MD5

    99bc5e82135557b8e571b2deab9f297f

  • SHA1

    ec11f6abf13044a438a7f363bda2c9d5709d2475

  • SHA256

    04d75593f6acdfe0c959345b8d6702166537d7533abfeb4b568339dee1986b5e

  • SHA512

    cffb151124a92bd9a1dca3e12ad4482e1dbdb4ff93099785e02b897c688d0a741a6d28b9ab40bc757e24caee1890ec207287058176547ff2bc48803c8aea7a5c

  • SSDEEP

    3072:d4YLjaoAN6vHt5pmX8Q8QAjD44vcTlYewhp8J1HGjqZfTd3zHZ0DELbT4n:tlmX8QHA0B9Sp+1cmV50DEr4n

Score
10/10
venuspersistenceransomwarespywarestealer

Malware Config

Signatures

  • Venus

    Venus is a ransomware first seen in 2022.

    ransomwarevenus
  • Venus Ransomware 5 IoCs
  • Executes dropped EXE 1 IoCs
  • Modifies extensions of user files 5 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • 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.

    spywarestealer
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Drops desktop.ini file(s) 34 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Kills process with taskkill 1 IoCs
    evasion
  • Modifies registry class 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\99bc5e82135557b8e571b2deab9f297f.exe
    "C:\Users\Admin\AppData\Local\Temp\99bc5e82135557b8e571b2deab9f297f.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:560
    • C:\Windows\99bc5e82135557b8e571b2deab9f297f.exe
      "C:\Windows\99bc5e82135557b8e571b2deab9f297f.exe" g g g o n e123
      2⤵
      • Executes dropped EXE
      • Modifies extensions of user files
      • Drops desktop.ini file(s)
      • Enumerates connected drives
      • Drops file in Program Files directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:1000
      • C:\Windows\System32\cmd.exe
        /C taskkill /F /IM msftesql.exe /IM sqlagent.exe /IM sqlbrowser.exe /IM sqlservr.exe /IM sqlwriter.exe /IM oracle.exe /IM ocssd.exe /IM dbsnmp.exe /IM synctime.exe /IM mydesktopqos.exe /IM agntsvc.exe /IM isqlplussvc.exe /IM xfssvccon.exe /IM mydesktopservice.exe /IM ocautoupds.exe /IM agntsvc.exe /IM agntsvc.exe /IM agntsvc.exe /IM encsvc.exe /IM firefoxconfig.exe /IM tbirdconfig.exe /IM ocomm.exe /IM mysqld.exe /IM mysqld-nt.exe /IM mysqld-opt.exe /IM dbeng50.exe /IM sqbcoreservice.exe /IM excel.exe /IM infopath.exe /IM msaccess.exe /IM mspub.exe /IM onenote.exe /IM outlook.exe /IM powerpnt.exe /IM sqlservr.exe /IM thebat64.exe /IM thunderbird.exe /IM winword.exe /IM wordpad.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4032
        • C:\Windows\system32\taskkill.exe
          taskkill /F /IM msftesql.exe /IM sqlagent.exe /IM sqlbrowser.exe /IM sqlservr.exe /IM sqlwriter.exe /IM oracle.exe /IM ocssd.exe /IM dbsnmp.exe /IM synctime.exe /IM mydesktopqos.exe /IM agntsvc.exe /IM isqlplussvc.exe /IM xfssvccon.exe /IM mydesktopservice.exe /IM ocautoupds.exe /IM agntsvc.exe /IM agntsvc.exe /IM agntsvc.exe /IM encsvc.exe /IM firefoxconfig.exe /IM tbirdconfig.exe /IM ocomm.exe /IM mysqld.exe /IM mysqld-nt.exe /IM mysqld-opt.exe /IM dbeng50.exe /IM sqbcoreservice.exe /IM excel.exe /IM infopath.exe /IM msaccess.exe /IM mspub.exe /IM onenote.exe /IM outlook.exe /IM powerpnt.exe /IM sqlservr.exe /IM thebat64.exe /IM thunderbird.exe /IM winword.exe /IM wordpad.exe
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:2076
    • C:\Windows\System32\cmd.exe
      /c ping localhost -n 3 > nul & del C:\Users\Admin\AppData\Local\Temp\99bc5e82135557b8e571b2deab9f297f.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2944
      • C:\Windows\system32\PING.EXE
        ping localhost -n 3
        3⤵
        • Runs ping.exe
        PID:408

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\99bc5e82135557b8e571b2deab9f297f.exe
    Filesize

    136KB

    MD5

    99bc5e82135557b8e571b2deab9f297f

    SHA1

    ec11f6abf13044a438a7f363bda2c9d5709d2475

    SHA256

    04d75593f6acdfe0c959345b8d6702166537d7533abfeb4b568339dee1986b5e

    SHA512

    cffb151124a92bd9a1dca3e12ad4482e1dbdb4ff93099785e02b897c688d0a741a6d28b9ab40bc757e24caee1890ec207287058176547ff2bc48803c8aea7a5c

    Download Submit

  • C:\Windows\99bc5e82135557b8e571b2deab9f297f.exe
    Filesize

    136KB

    MD5

    99bc5e82135557b8e571b2deab9f297f

    SHA1

    ec11f6abf13044a438a7f363bda2c9d5709d2475

    SHA256

    04d75593f6acdfe0c959345b8d6702166537d7533abfeb4b568339dee1986b5e

    SHA512

    cffb151124a92bd9a1dca3e12ad4482e1dbdb4ff93099785e02b897c688d0a741a6d28b9ab40bc757e24caee1890ec207287058176547ff2bc48803c8aea7a5c

    Download Submit

  • memory/408-137-0x0000000000000000-mapping.dmp

    Download

  • memory/560-132-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

    Download

  • memory/1000-133-0x0000000000000000-mapping.dmp

    Download

  • memory/1000-138-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

    Download

  • memory/1000-141-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

    Download

  • memory/2076-140-0x0000000000000000-mapping.dmp

    Download

  • memory/2944-135-0x0000000000000000-mapping.dmp

    Download

  • memory/4032-139-0x0000000000000000-mapping.dmp

    Download