Analysis

  • max time kernel
    125s
  • max time network
    130s
  • platform
    windows10-1703_x64
  • resource
    win10-20231020-en
  • resource tags

    arch:x64arch:x86image:win10-20231020-enlocale:en-usos:windows10-1703-x64system
  • submitted
    13/12/2023, 23:36

General

  • Target

    2a68d96210ac30680136adea1ef8cf155584301fd83eec3d7baa7eb4be97558e.exe

  • Size

    1.6MB

  • MD5

    c25792bf6ddfaa3681fc51fff986ae07

  • SHA1

    a3c43d8f4d3da1850210fa95e3eb2c600b4ee3d5

  • SHA256

    2a68d96210ac30680136adea1ef8cf155584301fd83eec3d7baa7eb4be97558e

  • SHA512

    27d5c4175174cf97d6a4b251d068caf25eb5050aa58c227c0f90fa2c45a4aa808213a7c7625e3920314051329ad55f2c444292fde877ceb2aed3a17fd07671c2

  • 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 1 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\2a68d96210ac30680136adea1ef8cf155584301fd83eec3d7baa7eb4be97558e.exe
    "C:\Users\Admin\AppData\Local\Temp\2a68d96210ac30680136adea1ef8cf155584301fd83eec3d7baa7eb4be97558e.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:4684
    • 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:5024
    • 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:4448
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4684 -s 1616
      2⤵
      • Program crash
      PID:5020
  • \??\c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s fhsvc
    1⤵
      PID:3060
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
      1⤵
        PID:2572

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

              Filesize

              1.6MB

              MD5

              c25792bf6ddfaa3681fc51fff986ae07

              SHA1

              a3c43d8f4d3da1850210fa95e3eb2c600b4ee3d5

              SHA256

              2a68d96210ac30680136adea1ef8cf155584301fd83eec3d7baa7eb4be97558e

              SHA512

              27d5c4175174cf97d6a4b251d068caf25eb5050aa58c227c0f90fa2c45a4aa808213a7c7625e3920314051329ad55f2c444292fde877ceb2aed3a17fd07671c2

            • C:\Users\Admin\AppData\Local\Temp\grandUIAFgln2OyE50uFU\information.txt

              Filesize

              3KB

              MD5

              73d875cc87c3e493db195c911b9767a0

              SHA1

              ae3e0b2473ab2e4cf7f64f24c1298683d7a99f8f

              SHA256

              9d4c1d8ec97d4682859b62a3cc24b2ac3b7be62a93f9f8aa4176fd30ac86922b

              SHA512

              8a5bc84adcf236acb2e97c9f4b92abff9d0d47adfe7c638f4b34e4eb0af9aab14d0a9292faf90edee26797703153e38dcc2872ae14bd84920dffba824915dfcd

            • C:\Users\Admin\AppData\Local\Temp\posterBoxFgln2OyE50uFU\QdX9ITDLyCRBWeb Data

              Filesize

              92KB

              MD5

              908cc2dad5eb4412aaa2a85beb5f6341

              SHA1

              a5f1b88092d219e71e8969d01ee2a3ae669a5600

              SHA256

              210fc747617b64d2430897b4c11cd5dc81bc3a991d7c622b90918ce4d112baa4

              SHA512

              38729498bd42d999c38dc769cc79057917a933080d608574460fe7ba7c9409db4e01979044151bc0922b1a9816398e25b7be59976bd318b1202b5d13fcf03cd9