Analysis

  • max time kernel
    127s
  • max time network
    132s
  • platform
    windows10-1703_x64
  • resource
    win10-20231025-en
  • resource tags

    arch:x64arch:x86image:win10-20231025-enlocale:en-usos:windows10-1703-x64system
  • submitted
    14/12/2023, 00:11

General

  • Target

    07cf715867a8e20e73c41776a193ab1e9c9fcacfca687bdd57f97598312cd7db.exe

  • Size

    1.6MB

  • MD5

    515c371d3f027d65eddf2388478100e7

  • SHA1

    9a060d1e807a70cdc3e9ba3d35780184ba689807

  • SHA256

    07cf715867a8e20e73c41776a193ab1e9c9fcacfca687bdd57f97598312cd7db

  • SHA512

    382c7a276a46cf7bc7a8ee229541712df499f9ffda43d5460415ac26ac2a9f5313c0788db55f052555a54551c040cf6386972fee4c0d94350a6a0c5f475f80c3

  • SSDEEP

    49152:80ceOGgUYYEmluRKYoFh4kGWusbQnIyDi1E1uonTKi/OjCCNG:1XOGgUYC4RKXFhrusbaDkE1u

Malware Config

Signatures

  • 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 WriteProcessMemory 6 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\07cf715867a8e20e73c41776a193ab1e9c9fcacfca687bdd57f97598312cd7db.exe
    "C:\Users\Admin\AppData\Local\Temp\07cf715867a8e20e73c41776a193ab1e9c9fcacfca687bdd57f97598312cd7db.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:4196
    • 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:4512
    • 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:4536
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4196 -s 1728
      2⤵
      • Program crash
      PID:208
  • \??\c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s fhsvc
    1⤵
      PID:4356
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
      1⤵
        PID:4900

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

              Filesize

              1.6MB

              MD5

              515c371d3f027d65eddf2388478100e7

              SHA1

              9a060d1e807a70cdc3e9ba3d35780184ba689807

              SHA256

              07cf715867a8e20e73c41776a193ab1e9c9fcacfca687bdd57f97598312cd7db

              SHA512

              382c7a276a46cf7bc7a8ee229541712df499f9ffda43d5460415ac26ac2a9f5313c0788db55f052555a54551c040cf6386972fee4c0d94350a6a0c5f475f80c3

            • C:\Users\Admin\AppData\Local\Temp\grandUIAeT9A8Y9uMGZWj\information.txt

              Filesize

              3KB

              MD5

              9f14d4dc77257ad67eba221c68b5e611

              SHA1

              125ceeea56734478b15502fe412921b9c37d0490

              SHA256

              d36af4fc5628e9ff778e7fd35f5aa6a22f6f45e644a552fd003ff049c3a0013a

              SHA512

              3e8cc930afcf17532eda5e92c6f4a1dfced7002c97e4ef65434764d9fe4e35b9f9e92e17f926c31b3555962f855f4add2c824fea49a2561f44d7533e8591e611

            • C:\Users\Admin\AppData\Local\Temp\posterBoxeT9A8Y9uMGZWj\QdX9ITDLyCRBWeb Data

              Filesize

              92KB

              MD5

              5962032f5f9ef10ad7afb6c595abf5c6

              SHA1

              fe47554bacd8ac1f3b9c249eb36c50aa0a8fd241

              SHA256

              0a5f892414b30f17d2a99466c400da50eef364501550d1835578042b084baa1e

              SHA512

              c4fb5d51f9b973f331a381577c7e5df57a92547d8192dfa100f41d0e1f5c1075dc04709372f7de929d433ac2a2b8c432c876744a41718b2005fc3453d2260f8e