Overview

overview

10

Static

static

chthonic_2...ir.exe

windows7_x64

10

chthonic_2...ir.exe

windows10_x64

10

Analysis

  • max time kernel
    116s
  • max time network
    141s
  • platform
    windows10_x64
  • resource
    win10v200430
  • submitted
    19-07-2020 19:24

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General

  • Target

    chthonic_2.0.5.0.vir.exe

  • Size

    88KB

  • MD5

    77b42fb633369de146785c83270bb289

  • SHA1

    db21636a6e3784701cd41ffa60398a5f110cec10

  • SHA256

    52d821d8e86473f0a69a044741e9f64b68a4f1677a298f292a560aae740f286c

  • SHA512

    99be184430c0d1d0d078cf27fbed9936fe533b1e980d320467af6d9d8073ce1ce89c50be8e4f8ee571e910d25596b87cccb839cbcc774e350d6b2a5715da39cf

Score
10/10
evasionpersistencetrojan

Malware Config

Signatures

  • Suspicious behavior: MapViewOfSection 60 IoCs
  • System policy modification 1 TTPs 5 IoCs
    evasion
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
    evasiontrojan
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Blacklisted process makes network request 8 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
  • Adds policy Run key to start application 2 TTPs 2 IoCs
    persistence
  • UAC bypass 3 TTPs
    evasiontrojan
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs
    evasion
  • Drops file in Program Files directory 1 IoCs
  • Disables taskbar notifications via registry modification
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\chthonic_2.0.5.0.vir.exe
    "C:\Users\Admin\AppData\Local\Temp\chthonic_2.0.5.0.vir.exe"
    1⤵
    • Suspicious behavior: MapViewOfSection
    • Suspicious behavior: EnumeratesProcesses
    • Identifies Wine through registry keys
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2456
    • C:\Windows\SysWOW64\msiexec.exe
      C:\Windows\system32\msiexec.exe
      2⤵
      • Suspicious behavior: MapViewOfSection
      • System policy modification
      • Checks whether UAC is enabled
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Blacklisted process makes network request
      • Identifies Wine through registry keys
      • Adds policy Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Drops file in Program Files directory
      PID:2124

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Hidden Files and Directories

1
T1158

Privilege Escalation

Bypass User Account Control

1
T1088

Defense Evasion

Modify Registry

4
T1112

Virtualization/Sandbox Evasion

1
T1497

Bypass User Account Control

1
T1088

Disabling Security Tools

1
T1089

Hidden Files and Directories

1
T1158

Credential Access

Discovery

System Information Discovery

1
T1082

Query Registry

1
T1012

Virtualization/Sandbox Evasion

1
T1497

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • memory/2124-0-0x0000000000000000-mapping.dmp
    Download
  • memory/2124-1-0x0000000001380000-0x0000000001392000-memory.dmp
    Filesize

    72KB

    Download
  • memory/2124-2-0x0000000001380000-0x0000000001392000-memory.dmp
    Filesize

    72KB

    Download