Overview

overview

10

Static

static

10

e7bf3ad0fd...18.exe

windows7-x64

10

e7bf3ad0fd...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    12-12-2024 18:40

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General

  • Target

    e7bf3ad0fd9846dde3875333798a9ea3_JaffaCakes118.exe

  • Size

    847KB

  • MD5

    e7bf3ad0fd9846dde3875333798a9ea3

  • SHA1

    95540677a38f363afc4f82facdfe8b02c9c99f7b

  • SHA256

    39fa59e53530b0794d858c51988689fc33036ef0c9b902240d877b1746b18742

  • SHA512

    a7bd9fd0e6562050e1e16e930f917078c0760c409cd9b9578c2e4d68f74fb67c26a557a8762541e7cfa8243063fdbf94eb1344caff34abbc0f04a46dc05c839b

  • SSDEEP

    12288:naAchpWsuVtDnBsBDJIcynnC90levX4CuYf2D82T3s99+VHuNbYE:aAEE3uBDhynCylQgi63O9+VuNbd

Score
10/10
darkcometdiscoveryevasionpersistencerattrojanupx

Malware Config

Signatures

  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

    trojanratdarkcomet
  • Darkcomet family
    darkcomet
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Modifies firewall policy service 3 TTPs 3 IoCs
    evasion
  • Modifies security service 2 TTPs 1 IoCs
    evasion
  • Windows security bypass 2 TTPs 1 IoCs
    evasiontrojan
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Windows security modification 2 TTPs 1 IoCs
    evasiontrojan
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

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

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Checks processor information in registry 2 TTPs 8 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e7bf3ad0fd9846dde3875333798a9ea3_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e7bf3ad0fd9846dde3875333798a9ea3_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks BIOS information in registry
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3056
    • C:\Windows\svchost.exe
      "C:\Windows\svchost.exe"
      2⤵
      • Modifies firewall policy service
      • Modifies security service
      • Windows security bypass
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Windows security modification
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:2708

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Defense Evasion

Impair Defenses

3
T1562

Disable or Modify System Firewall

1
T1562.004

Disable or Modify Tools

2
T1562.001

Modify Registry

6
T1112

Credential Access

Discovery

Query Registry

3
T1012

System Information Discovery

4
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

  • C:\Windows\svchost.exe
    Filesize

    847KB

    MD5

    e7bf3ad0fd9846dde3875333798a9ea3

    SHA1

    95540677a38f363afc4f82facdfe8b02c9c99f7b

    SHA256

    39fa59e53530b0794d858c51988689fc33036ef0c9b902240d877b1746b18742

    SHA512

    a7bd9fd0e6562050e1e16e930f917078c0760c409cd9b9578c2e4d68f74fb67c26a557a8762541e7cfa8243063fdbf94eb1344caff34abbc0f04a46dc05c839b

    Download Submit

  • memory/2708-15-0x0000000000400000-0x00000000004D5000-memory.dmp

    Filesize

    852KB

    Download

  • memory/3056-0-0x0000000000400000-0x00000000004D5000-memory.dmp

    Filesize

    852KB

    Download

  • memory/3056-1-0x0000000000270000-0x0000000000271000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3056-13-0x00000000041C0000-0x0000000004295000-memory.dmp

    Filesize

    852KB

    Download

  • memory/3056-12-0x0000000000400000-0x00000000004D5000-memory.dmp

    Filesize

    852KB

    Download

  • memory/3056-11-0x00000000041C0000-0x0000000004295000-memory.dmp

    Filesize

    852KB

    Download