Overview

overview

10

Static

static

10

e7bf3ad0fd...18.exe

windows7-x64

10

e7bf3ad0fd...18.exe

windows10-2004-x64

10

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General

  • Target

    e7bf3ad0fd9846dde3875333798a9ea3_JaffaCakes118

  • Size

    847KB

  • Sample

    241212-xbfvsavndr

  • MD5

    e7bf3ad0fd9846dde3875333798a9ea3

  • SHA1

    95540677a38f363afc4f82facdfe8b02c9c99f7b

  • SHA256

    39fa59e53530b0794d858c51988689fc33036ef0c9b902240d877b1746b18742

  • SHA512

    a7bd9fd0e6562050e1e16e930f917078c0760c409cd9b9578c2e4d68f74fb67c26a557a8762541e7cfa8243063fdbf94eb1344caff34abbc0f04a46dc05c839b

  • SSDEEP

    12288:naAchpWsuVtDnBsBDJIcynnC90levX4CuYf2D82T3s99+VHuNbYE:aAEE3uBDhynCylQgi63O9+VuNbd

Score
10/10
darkcometdiscoveryevasionpersistencerattrojanupx

Malware Config

Targets

    • Target

      e7bf3ad0fd9846dde3875333798a9ea3_JaffaCakes118

    • Size

      847KB

    • MD5

      e7bf3ad0fd9846dde3875333798a9ea3

    • SHA1

      95540677a38f363afc4f82facdfe8b02c9c99f7b

    • SHA256

      39fa59e53530b0794d858c51988689fc33036ef0c9b902240d877b1746b18742

    • SHA512

      a7bd9fd0e6562050e1e16e930f917078c0760c409cd9b9578c2e4d68f74fb67c26a557a8762541e7cfa8243063fdbf94eb1344caff34abbc0f04a46dc05c839b

    • SSDEEP

      12288:naAchpWsuVtDnBsBDJIcynnC90levX4CuYf2D82T3s99+VHuNbYE:aAEE3uBDhynCylQgi63O9+VuNbd

    Score
    10/10
    darkcometdiscoveryevasionpersistencerattrojanupx

    • Darkcomet

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

      trojanratdarkcomet

    • Darkcomet family

      darkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy service

      evasion

    • Modifies security service

      evasion

    • Windows security bypass

      evasiontrojan

    • Checks BIOS information in registry

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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence

    • UPX packed file

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

      upx
    behavioral1behavioral2

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

4
T1012

System Information Discovery

5
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks