Analysis

  • max time kernel
    207s
  • max time network
    217s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:02

General

  • Target

    0aa169d92500c4aa835575cc17bfc48d24c38aec2335906efeb7dea7ee738eec.exe

  • Size

    1.1MB

  • MD5

    b98f7cc3cb959e27037722baa8c65e49

  • SHA1

    059a349af476f11733090f897f991e826d4d62c4

  • SHA256

    0aa169d92500c4aa835575cc17bfc48d24c38aec2335906efeb7dea7ee738eec

  • SHA512

    14e61eb0c811728e4b9569fe624b01641a7d056469fdee7bd04c295dc917be2310f3ac4f415a28eb0175ac19c5dc31719471f3bea22e28a98ebfb30c56f431c5

  • SSDEEP

    24576:/4lavt0LkLL9IMixoEgea9DnMNtSmESivq9MmCS:6kwkn9IMHea9DnMSmEvaPCS

Malware Config

Signatures

  • NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

  • UAC bypass 3 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • System policy modification 1 TTPs 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0aa169d92500c4aa835575cc17bfc48d24c38aec2335906efeb7dea7ee738eec.exe
    "C:\Users\Admin\AppData\Local\Temp\0aa169d92500c4aa835575cc17bfc48d24c38aec2335906efeb7dea7ee738eec.exe"
    1⤵
    • UAC bypass
    • Checks computer location settings
    • Checks whether UAC is enabled
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:4740
    • C:\Users\Admin\AppData\Local\Temp\1554\1554.exe
      "C:\Users\Admin\AppData\Local\Temp\1554\1554.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4792
      • C:\Windows\SYSTEM32\schtasks.exe
        "schtasks.exe" /create /f /tn "PCI Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmp64.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:2268
      • C:\Windows\SYSTEM32\schtasks.exe
        "schtasks.exe" /create /f /tn "PCI Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp2C6.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:2432

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\1554\1554.exe

    Filesize

    255KB

    MD5

    4051af77a4baf601520e9132c8b282bd

    SHA1

    6c258ef59d544efe6027e51d97c1b15f748365f4

    SHA256

    c687d4064dfb8bc8c5d80d5b6103caec01ba2a798f9bfcd7ddd74f6e7ce90ae0

    SHA512

    fb99af04e8df6ef9c1137137c6ff7c6549669adda445dac5c85e7af157ae9370f7df3a3fc5696c3ba360bc5a1e4a818d258b58d721b54586dbb4527ebe38e977

  • C:\Users\Admin\AppData\Local\Temp\1554\1554.exe

    Filesize

    255KB

    MD5

    4051af77a4baf601520e9132c8b282bd

    SHA1

    6c258ef59d544efe6027e51d97c1b15f748365f4

    SHA256

    c687d4064dfb8bc8c5d80d5b6103caec01ba2a798f9bfcd7ddd74f6e7ce90ae0

    SHA512

    fb99af04e8df6ef9c1137137c6ff7c6549669adda445dac5c85e7af157ae9370f7df3a3fc5696c3ba360bc5a1e4a818d258b58d721b54586dbb4527ebe38e977

  • C:\Users\Admin\AppData\Local\Temp\tmp2C6.tmp

    Filesize

    1KB

    MD5

    f7fc5cfe3d4801d5fb389238c3400380

    SHA1

    41751c30225709a60ba8f8049c6e2405d9d6717d

    SHA256

    79a01572b6494f8dc6cd81f182d1566d57b6eaf8592f4e07f1a7eb8eaf89d883

    SHA512

    86fdef1ccb273b2680c8f9645be7fd532cfc1441b2299f72d785d038a228129b0bdca6ddb83e9fd25945f65832fca1668c9f510705fca418e0fdb2d1ed6fc9b0

  • C:\Users\Admin\AppData\Local\Temp\tmp64.tmp

    Filesize

    1KB

    MD5

    c946474f8bcccd6e4cba46d44ee33546

    SHA1

    8a5d72c68a0dd7170414d4428e1e0b4be679c09c

    SHA256

    e8fdaca4e4d2e0e1cfdfe65a3dd1b38f1d81ea67ae907d9794472f3109c578a9

    SHA512

    251742d3a55747178224c307cf1027770ebc4cb452bc41d66c8e9d670db1eb925cfb226e7e458a40612027a170cdadacac8a6ed92f27ab40e8ffe48a320738d8

  • memory/2268-136-0x0000000000000000-mapping.dmp

  • memory/2432-138-0x0000000000000000-mapping.dmp

  • memory/4792-132-0x0000000000000000-mapping.dmp

  • memory/4792-135-0x00007FF9D2440000-0x00007FF9D2E76000-memory.dmp

    Filesize

    10.2MB

  • memory/4792-140-0x00000000013AA000-0x00000000013AF000-memory.dmp

    Filesize

    20KB

  • memory/4792-141-0x000000001C6A0000-0x000000001C7A0000-memory.dmp

    Filesize

    1024KB

  • memory/4792-142-0x00000000013AA000-0x00000000013AF000-memory.dmp

    Filesize

    20KB

  • memory/4792-143-0x000000001C6A0000-0x000000001C7A0000-memory.dmp

    Filesize

    1024KB