Analysis

  • max time kernel
    151s
  • max time network
    40s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 18:46

General

  • Target

    6cf2ebb06c8534930bd6b309390a4fbaf18be95a0193dca8f0ff29c89abe6ea1.exe

  • Size

    500KB

  • MD5

    01e3617a09cca6d34fe3a39d34adc974

  • SHA1

    cac71a437ef1b9411488bdb4959403c9d859d6dd

  • SHA256

    6cf2ebb06c8534930bd6b309390a4fbaf18be95a0193dca8f0ff29c89abe6ea1

  • SHA512

    3d13f75a43baffffbbf9fb65321d45280d93a21760342ba177b691dfab2f4d775b281df59e64c605c9f058144544adfb3536a4cddd2958f9836a923869601641

  • SSDEEP

    12288:s4vvfwYw2Q79D6H9QkbURy/ZjbbkPrreri0H+/5SiufX:s+fTb9tISiuf

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Drops startup file 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 19 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6cf2ebb06c8534930bd6b309390a4fbaf18be95a0193dca8f0ff29c89abe6ea1.exe
    "C:\Users\Admin\AppData\Local\Temp\6cf2ebb06c8534930bd6b309390a4fbaf18be95a0193dca8f0ff29c89abe6ea1.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:1064
    • C:\Users\Admin\AppData\Roaming\tasKhost.exe
      "C:\Users\Admin\AppData\Roaming\tasKhost.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:288
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\tasKhost.exe" "tasKhost.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:1176

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

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

    500KB

    MD5

    01e3617a09cca6d34fe3a39d34adc974

    SHA1

    cac71a437ef1b9411488bdb4959403c9d859d6dd

    SHA256

    6cf2ebb06c8534930bd6b309390a4fbaf18be95a0193dca8f0ff29c89abe6ea1

    SHA512

    3d13f75a43baffffbbf9fb65321d45280d93a21760342ba177b691dfab2f4d775b281df59e64c605c9f058144544adfb3536a4cddd2958f9836a923869601641

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

    500KB

    MD5

    01e3617a09cca6d34fe3a39d34adc974

    SHA1

    cac71a437ef1b9411488bdb4959403c9d859d6dd

    SHA256

    6cf2ebb06c8534930bd6b309390a4fbaf18be95a0193dca8f0ff29c89abe6ea1

    SHA512

    3d13f75a43baffffbbf9fb65321d45280d93a21760342ba177b691dfab2f4d775b281df59e64c605c9f058144544adfb3536a4cddd2958f9836a923869601641

  • \Users\Admin\AppData\Roaming\tasKhost.exe
    Filesize

    500KB

    MD5

    01e3617a09cca6d34fe3a39d34adc974

    SHA1

    cac71a437ef1b9411488bdb4959403c9d859d6dd

    SHA256

    6cf2ebb06c8534930bd6b309390a4fbaf18be95a0193dca8f0ff29c89abe6ea1

    SHA512

    3d13f75a43baffffbbf9fb65321d45280d93a21760342ba177b691dfab2f4d775b281df59e64c605c9f058144544adfb3536a4cddd2958f9836a923869601641

  • \Users\Admin\AppData\Roaming\tasKhost.exe
    Filesize

    500KB

    MD5

    01e3617a09cca6d34fe3a39d34adc974

    SHA1

    cac71a437ef1b9411488bdb4959403c9d859d6dd

    SHA256

    6cf2ebb06c8534930bd6b309390a4fbaf18be95a0193dca8f0ff29c89abe6ea1

    SHA512

    3d13f75a43baffffbbf9fb65321d45280d93a21760342ba177b691dfab2f4d775b281df59e64c605c9f058144544adfb3536a4cddd2958f9836a923869601641

  • memory/288-58-0x0000000000000000-mapping.dmp
  • memory/288-63-0x0000000074610000-0x0000000074BBB000-memory.dmp
    Filesize

    5.7MB

  • memory/288-66-0x0000000074610000-0x0000000074BBB000-memory.dmp
    Filesize

    5.7MB

  • memory/1064-54-0x0000000075FE1000-0x0000000075FE3000-memory.dmp
    Filesize

    8KB

  • memory/1064-55-0x0000000074610000-0x0000000074BBB000-memory.dmp
    Filesize

    5.7MB

  • memory/1064-62-0x0000000074610000-0x0000000074BBB000-memory.dmp
    Filesize

    5.7MB

  • memory/1176-64-0x0000000000000000-mapping.dmp