Analysis

  • max time kernel
    127s
  • max time network
    41s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 05:35

General

  • Target

    2f283fb253cc63f74a71f71367084dbb35015193fecfc112725ea5529b434524.exe

  • Size

    510KB

  • MD5

    6f502f1cc527cbc62411532220e1ce86

  • SHA1

    58c1b175ef0f758bcf26dd6d36a5597d0289fd10

  • SHA256

    2f283fb253cc63f74a71f71367084dbb35015193fecfc112725ea5529b434524

  • SHA512

    cccf8a62f96bd36fb9ed7b1f3f4b7d73b6dd2ffe1f1c9a6495830cc1f067c39afa603edad0a7cd6034ba6a1d344ff233b86950bdd02c1a258cf05f6fa688d1f1

  • SSDEEP

    12288:xCTPgrnZiJiAaMVkUet7EwBI+APu2DrVkP+xnXOBI+AM0bUjr:xCTPMAzVkUetVI5u2/VkP+x6IS0b+r

Score
10/10

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Disables use of System Restore points 1 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops desktop.ini file(s) 48 IoCs
  • Enumerates connected drives 3 TTPs 22 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops autorun.inf file 1 TTPs 47 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in System32 directory 3 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Modifies Control Panel 3 IoCs
  • Modifies registry class 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2f283fb253cc63f74a71f71367084dbb35015193fecfc112725ea5529b434524.exe
    "C:\Users\Admin\AppData\Local\Temp\2f283fb253cc63f74a71f71367084dbb35015193fecfc112725ea5529b434524.exe"
    1⤵
    • Modifies system executable filetype association
    • Modifies visibility of file extensions in Explorer
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    • Drops autorun.inf file
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:748
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 748 -s 388
      2⤵
      • Program crash
      PID:1684

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Replication Through Removable Media

1
T1091

Persistence

Change Default File Association

1
T1042

Hidden Files and Directories

1
T1158

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

3
T1112

Hidden Files and Directories

1
T1158

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Lateral Movement

Replication Through Removable Media

1
T1091

Impact

Inhibit System Recovery

1
T1490

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/748-54-0x0000000074FB1000-0x0000000074FB3000-memory.dmp
    Filesize

    8KB

  • memory/1684-55-0x0000000000000000-mapping.dmp