Overview

overview

10

Static

static

chthonic_2...ir.exe

windows7_x64

10

chthonic_2...ir.exe

windows10_x64

5

Analysis

  • max time kernel
    111s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    19-07-2020 16:34

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General

  • Target

    chthonic_2.1.4.0.vir.exe

  • Size

    188KB

  • MD5

    42104ac17c4438f016128b643c67e164

  • SHA1

    679699cd53fa56cd89d2f98806a42d78efb3748a

  • SHA256

    0e3418c1fe660e17a43e8f7568f72d0e21fbed0a52f0e69e4c93b62e3cac3f1a

  • SHA512

    70e3d23fe1888e4a438f174c4720eb517cfde01c3b3116f1eb8ebd13e5413cfeca53e0a2da83ce63971620e22a0d986b53b86afa2adbc51598bee832bf13cf33

Score
10/10
evasiontrojanpersistence

Malware Config

Signatures

  • Blacklisted process makes network request 11 IoCs
  • UAC bypass 3 TTPs
    evasiontrojan
  • Drops file in Program Files directory 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious behavior: MapViewOfSection 21 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Disables taskbar notifications via registry modification
    evasion
  • System policy modification 1 TTPs 2 IoCs
    evasion
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs
    evasion
  • Adds policy Run key to start application 2 TTPs 2 IoCs
    persistence
  • Suspicious use of WriteProcessMemory 16 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
    evasiontrojan

Processes

  • C:\Users\Admin\AppData\Local\Temp\chthonic_2.1.4.0.vir.exe
    "C:\Users\Admin\AppData\Local\Temp\chthonic_2.1.4.0.vir.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:900
    • C:\Users\Admin\AppData\Local\Temp\chthonic_2.1.4.0.vir.exe
      "C:\Users\Admin\AppData\Local\Temp\chthonic_2.1.4.0.vir.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1288
      • C:\Windows\SysWOW64\msiexec.exe
        C:\Windows\system32\msiexec.exe
        3⤵
        • Blacklisted process makes network request
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious behavior: MapViewOfSection
        • Suspicious behavior: RenamesItself
        • System policy modification
        • Adds policy Run key to start application
        • Checks whether UAC is enabled
        PID:316

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Bypass User Account Control

1
T1088

Defense Evasion

Bypass User Account Control

1
T1088

Disabling Security Tools

1
T1089

Modify Registry

4
T1112

Hidden Files and Directories

1
T1158

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • memory/316-4-0x0000000000000000-mapping.dmp
    Download
  • memory/316-5-0x0000000000C00000-0x0000000000C14000-memory.dmp
    Filesize

    80KB

    Download
  • memory/1288-2-0x0000000000400000-0x0000000000409000-memory.dmp
    Filesize

    36KB

    Download
  • memory/1288-3-0x0000000000401B91-mapping.dmp
    Download