Analysis

  • max time kernel
    120s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    19-08-2022 09:14

General

  • Target

    91791f8c459f32dc9bf6ec9f7ee157e322b252bc74b1142705dcc74fe8eced7e.exe

  • Size

    62KB

  • MD5

    e538190af9ed2ee602d3cbbe25fd1d78

  • SHA1

    9649f68d1de493b0f17d93b33c2e6bd0ff149e1e

  • SHA256

    91791f8c459f32dc9bf6ec9f7ee157e322b252bc74b1142705dcc74fe8eced7e

  • SHA512

    99b29ef2c068da8d0d50927463257ae1e90b30dab4114af3c5300084b2a6bbdc1d8b67bc9e3cd6d8bd3320c56bb255f7de3a9f60363f2bc0935603e8929eb99b

Malware Config

Extracted

Family

netdooka

C2

http://93.115.21.45/gtaddress

Signatures

  • NetDooka

    NetDooka is a malware framework distributed by way of a pay-per-install and written in C#.

  • Creates new service(s) 1 TTPs
  • Executes dropped EXE 2 IoCs
  • Checks for any installed AV software in registry 1 TTPs 2 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Launches sc.exe 2 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Runs ping.exe 1 TTPs 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\91791f8c459f32dc9bf6ec9f7ee157e322b252bc74b1142705dcc74fe8eced7e.exe
    "C:\Users\Admin\AppData\Local\Temp\91791f8c459f32dc9bf6ec9f7ee157e322b252bc74b1142705dcc74fe8eced7e.exe"
    1⤵
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:1772
    • C:\Windows\system32\ping.exe
      "ping.exe" 5.4.3.1
      2⤵
      • Runs ping.exe
      PID:1284
    • C:\Users\Admin\AppData\Local\Temp\interlock_storage_8_57.exe
      "C:\Users\Admin\AppData\Local\Temp\\interlock_storage_8_57.exe"
      2⤵
      • Executes dropped EXE
      • Checks for any installed AV software in registry
      • Suspicious use of WriteProcessMemory
      PID:1720
      • C:\Windows\SysWOW64\PING.EXE
        "C:\Windows\System32\PING.EXE" 22.61.56.108 -n 4
        3⤵
        • Runs ping.exe
        PID:824
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C copy "C:\Users\Admin\AppData\Local\Temp\interlock_storage_8_57.exe" "C:\Program Files (x86)\ExMultimediaStorage\min_id_resolver.exe"
        3⤵
        • Drops file in Program Files directory
        PID:1208
      • C:\Windows\SysWOW64\sc.exe
        "C:\Windows\System32\sc.exe" create SecureElementDataSrv binpath= "C:\Program Files (x86)\ExMultimediaStorage\min_id_resolver.exe delected"
        3⤵
        • Launches sc.exe
        PID:2024
      • C:\Windows\SysWOW64\sc.exe
        "C:\Windows\System32\sc.exe" start SecureElementDataSrv
        3⤵
        • Launches sc.exe
        PID:548
  • C:\Program Files (x86)\ExMultimediaStorage\min_id_resolver.exe
    "C:\Program Files (x86)\ExMultimediaStorage\min_id_resolver.exe" delected
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:472

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files (x86)\ExMultimediaStorage\min_id_resolver.exe

    Filesize

    54KB

    MD5

    7d6fff4ae0c7ffd8d68486d2df914087

    SHA1

    dc65e3e4c4fb12691fa70f964081600adb18a2ae

    SHA256

    07aec94afba94eb3b35ba5b2e74b37553c3c0fed4f6de1fbac61c20dae3f29d4

    SHA512

    a71ae0c58978c655141670d65649baab3c9e964936e7a9faa4a31ec95f838e691741dc9d230496de494d3ccd5b39b09482f6b317bff8d00c59ef61c322b6b8c4

  • C:\Program Files (x86)\ExMultimediaStorage\min_id_resolver.exe

    Filesize

    54KB

    MD5

    7d6fff4ae0c7ffd8d68486d2df914087

    SHA1

    dc65e3e4c4fb12691fa70f964081600adb18a2ae

    SHA256

    07aec94afba94eb3b35ba5b2e74b37553c3c0fed4f6de1fbac61c20dae3f29d4

    SHA512

    a71ae0c58978c655141670d65649baab3c9e964936e7a9faa4a31ec95f838e691741dc9d230496de494d3ccd5b39b09482f6b317bff8d00c59ef61c322b6b8c4

  • C:\Users\Admin\AppData\Local\Temp\interlock_storage_8_57.exe

    Filesize

    54KB

    MD5

    7d6fff4ae0c7ffd8d68486d2df914087

    SHA1

    dc65e3e4c4fb12691fa70f964081600adb18a2ae

    SHA256

    07aec94afba94eb3b35ba5b2e74b37553c3c0fed4f6de1fbac61c20dae3f29d4

    SHA512

    a71ae0c58978c655141670d65649baab3c9e964936e7a9faa4a31ec95f838e691741dc9d230496de494d3ccd5b39b09482f6b317bff8d00c59ef61c322b6b8c4

  • C:\Users\Admin\AppData\Local\Temp\interlock_storage_8_57.exe

    Filesize

    54KB

    MD5

    7d6fff4ae0c7ffd8d68486d2df914087

    SHA1

    dc65e3e4c4fb12691fa70f964081600adb18a2ae

    SHA256

    07aec94afba94eb3b35ba5b2e74b37553c3c0fed4f6de1fbac61c20dae3f29d4

    SHA512

    a71ae0c58978c655141670d65649baab3c9e964936e7a9faa4a31ec95f838e691741dc9d230496de494d3ccd5b39b09482f6b317bff8d00c59ef61c322b6b8c4

  • memory/472-67-0x0000000001100000-0x0000000001110000-memory.dmp

    Filesize

    64KB

  • memory/1720-60-0x00000000765F1000-0x00000000765F3000-memory.dmp

    Filesize

    8KB

  • memory/1720-59-0x0000000000320000-0x0000000000330000-memory.dmp

    Filesize

    64KB

  • memory/1772-54-0x000007FEF3850000-0x000007FEF4273000-memory.dmp

    Filesize

    10.1MB