Overview

overview

8

Static

static

fbba69a89b...c2.exe

windows7_x64

8

fbba69a89b...c2.exe

windows10-2004_x64

8

Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 23:27

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General

  • Target

    fbba69a89b660b9a31c1f66b3432cc0b18d9857ccf01c9330410afa063b55dc2.exe

  • Size

    32KB

  • MD5

    012f3043517bfb3195e7e3888f9fe6a8

  • SHA1

    7a922ea92ec9ec34dae06685aba60a94f893f7a3

  • SHA256

    fbba69a89b660b9a31c1f66b3432cc0b18d9857ccf01c9330410afa063b55dc2

  • SHA512

    8a1d22653bc2c4e7ca95f45fe8c36911c2ead3be695f87715000b39b3ba5f6ab658046902396c416f468ce868336e94803009375bd1b793faf261f5bb0695814

Score
8/10
evasionpersistence

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs
    evasion
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 54 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fbba69a89b660b9a31c1f66b3432cc0b18d9857ccf01c9330410afa063b55dc2.exe
    "C:\Users\Admin\AppData\Local\Temp\fbba69a89b660b9a31c1f66b3432cc0b18d9857ccf01c9330410afa063b55dc2.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4740
    • C:\Users\Admin\AppData\Roaming\server.exe
      "C:\Users\Admin\AppData\Roaming\server.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3200
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe" "server.exe" ENABLE
        3⤵
          PID:4100

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Modify Existing Service

    1
    T1031

    Registry Run Keys / Startup Folder

    1
    T1060

    Privilege Escalation

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Roaming\server.exe
      Filesize

      32KB

      MD5

      012f3043517bfb3195e7e3888f9fe6a8

      SHA1

      7a922ea92ec9ec34dae06685aba60a94f893f7a3

      SHA256

      fbba69a89b660b9a31c1f66b3432cc0b18d9857ccf01c9330410afa063b55dc2

      SHA512

      8a1d22653bc2c4e7ca95f45fe8c36911c2ead3be695f87715000b39b3ba5f6ab658046902396c416f468ce868336e94803009375bd1b793faf261f5bb0695814

      Download Submit
    • C:\Users\Admin\AppData\Roaming\server.exe
      Filesize

      32KB

      MD5

      012f3043517bfb3195e7e3888f9fe6a8

      SHA1

      7a922ea92ec9ec34dae06685aba60a94f893f7a3

      SHA256

      fbba69a89b660b9a31c1f66b3432cc0b18d9857ccf01c9330410afa063b55dc2

      SHA512

      8a1d22653bc2c4e7ca95f45fe8c36911c2ead3be695f87715000b39b3ba5f6ab658046902396c416f468ce868336e94803009375bd1b793faf261f5bb0695814

      Download Submit
    • memory/3200-131-0x0000000000000000-mapping.dmp
      Download
    • memory/3200-134-0x0000000074650000-0x0000000074C01000-memory.dmp
      Filesize

      5.7MB

      Download
    • memory/4100-135-0x0000000000000000-mapping.dmp
      Download
    • memory/4740-130-0x0000000074650000-0x0000000074C01000-memory.dmp
      Filesize

      5.7MB

      Download