Overview

overview

10

Static

static

10

HEUR-Troja...82.exe

windows7-x64

10

HEUR-Troja...82.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    152s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/09/2022, 05:03

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    HEUR-Trojan-Ransom.MSIL.Agent.gen-ca3e078052da372b3238b78d311eca0dee9e82bb75d62773be05bc033ab0ea82.exe
  • Size 23KB
  • Sample220920-fppleafegr
  • SHA256 ca3e078052da372b3238b78d311eca0dee9e82bb75d62773be05bc033ab0ea82
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
chaosevasionransomwarespywarestealer

Malware Config

Extracted

Path

  • C:\Users\Admin\Desktop\read_it.txt

Ransom Note
  • All of your files have been encrypted By Jigsaw Your computer was infected with my ransomware. Your files have been encrypted and you won't be able to decrypt them without our help.What can I do to get my files back?You can buy our special decryption software, this software will allow you to recover all of your data and remove the ransomware from your computer.The price for the software is $300. Payment can be made in Bitcoin only. How do I pay, where do I get Bitcoin? Purchasing Bitcoin varies from country to country, you are best advised to do a quick google search yourself to find out how to buy Bitcoin. Many of our customers have reported these sites to be fast and reliable: Coinmama - coinbase.com- localbitcoins.com Payment informationAmount: 0.1473766 BTC Bitcoin Address: 32Dp8GcFQWZgNpNcEqdGRztEGEZQS1q587
Wallets

  • 32Dp8GcFQWZgNpNcEqdGRztEGEZQS1q587

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

    ransomwarechaos
  • Chaos Ransomware 3 IoCs
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
    ransomwareevasion
  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

    ransomware
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Drops startup file 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Drops desktop.ini file(s) 33 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Modifies registry class 1 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 51 IoCs
  • Suspicious use of AdjustPrivilegeToken 50 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan-Ransom.MSIL.Agent.gen-ca3e078052da372b3238b78d311eca0dee9e82bb75d62773be05bc033ab0ea82.exe
    "C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan-Ransom.MSIL.Agent.gen-ca3e078052da372b3238b78d311eca0dee9e82bb75d62773be05bc033ab0ea82.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4676
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Drops startup file
      • Drops desktop.ini file(s)
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3304
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:452
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:3860
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1860
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3704
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2700
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:3756
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4748
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:1884
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt
        3⤵
        • Opens file in notepad (likely ransom note)
        PID:3764
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3016
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1584
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:3220
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:820

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          read_it.txt
          • Path C:\Users\Admin\AppData\Roaming\read_it.txt
          • Size 846B
          • SHA256 f270a87b31be8d549a7ba49d8b26543ce8d10212f0c34a2eb9f8b9d6024344a0
          • MD5 SHA1 SHA512
          Submit Download

          svchost.exe
          • Path C:\Users\Admin\AppData\Roaming\svchost.exe
          • Size 23KB
          • SHA256 ca3e078052da372b3238b78d311eca0dee9e82bb75d62773be05bc033ab0ea82
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          svchost.exe
          • Path C:\Users\Admin\AppData\Roaming\svchost.exe
          • Size 23KB
          • SHA256 ca3e078052da372b3238b78d311eca0dee9e82bb75d62773be05bc033ab0ea82
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          memory/3304-140-0x00007FFEA5C90000-0x00007FFEA6751000-memory.dmp
          Download

          memory/3304-139-0x00007FFEA5C90000-0x00007FFEA6751000-memory.dmp
          Download

          memory/4676-132-0x00000000000F0000-0x00000000000FC000-memory.dmp
          Download

          memory/4676-138-0x00007FFEA5C90000-0x00007FFEA6751000-memory.dmp
          Download

          memory/4676-134-0x00007FFEA5C90000-0x00007FFEA6751000-memory.dmp
          Download

          memory/4676-133-0x00007FFEA5C90000-0x00007FFEA6751000-memory.dmp
          Download