Overview

overview

8

Static

static

chthonic_0...ir.exe

windows7_x64

8

chthonic_0...ir.exe

windows10_x64

8

Analysis

  • max time kernel
    151s
  • max time network
    73s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    19-07-2020 17:28

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General

  • Target

    chthonic_0.3.29.0.vir.exe

  • Size

    228KB

  • MD5

    a9cedbccefb07a18d56a360be2aeb4bb

  • SHA1

    ed6043735ef990b3b9fa5fd53df82b3e577fc02a

  • SHA256

    51c8e10c77c9f131b207be4bff0e37a09cf4f24b3b941416ae22bc438d1730c4

  • SHA512

    610670b89af3014d303e55f6d90dce22edb9f7ac74e4a9f7c73952875884074180500deb5b8d98ff8824f443de848cce22aee972c9bdd6a6faca588b9bd8ef06

Score
8/10
evasionpersistence

Malware Config

Signatures

  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Loads dropped DLL 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Executes dropped EXE 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Deletes itself 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 58 IoCs
  • Identifies Wine through registry keys 2 TTPs 2 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\chthonic_0.3.29.0.vir.exe
    "C:\Users\Admin\AppData\Local\Temp\chthonic_0.3.29.0.vir.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    • Identifies Wine through registry keys
    PID:1544
    • C:\Users\Admin\AppData\Roaming\Macromedia\trayMacromedia.exe
      "C:\Users\Admin\AppData\Roaming\Macromedia\trayMacromedia.exe"
      2⤵
      • Adds Run key to start application
      • Executes dropped EXE
      • Suspicious use of FindShellTrayWindow
      • Suspicious behavior: EnumeratesProcesses
      • Identifies Wine through registry keys
      PID:280
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmp5598c5d2.bat"
      2⤵
      • Deletes itself
      PID:1052

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Discovery

Query Registry

1
T1012

Virtualization/Sandbox Evasion

1
T1497

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp5598c5d2.bat
    Download Submit
  • C:\Users\Admin\AppData\Roaming\Macromedia\trayMacromedia.exe
    Download Submit
  • C:\Users\Admin\AppData\Roaming\Macromedia\trayMacromedia.exe
    Download Submit
  • \Users\Admin\AppData\Roaming\Macromedia\trayMacromedia.exe
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  • \Users\Admin\AppData\Roaming\Macromedia\trayMacromedia.exe
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  • memory/280-2-0x0000000000000000-mapping.dmp
    Download
  • memory/1052-5-0x0000000000000000-mapping.dmp
    Download