Overview

overview

10

Static

static

3

JaffaCakes...3a.exe

windows7-x64

10

JaffaCakes...3a.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    JaffaCakes118_0b8890e56e80bbdd1502cf079ce7583a

  • Size

    1.4MB

  • Sample

    250106-dx72lsxken

  • MD5

    0b8890e56e80bbdd1502cf079ce7583a

  • SHA1

    dd2898e0e29e621e61f94b09b208daa77d3a916a

  • SHA256

    c7f975e39d71c09f26329414e6e790b2df26808e88529845996c889726af65ff

  • SHA512

    bd35e0ecddfc7f132f7eccd33d5abe40ff92ab129723110a1c5d11decc291af30857d05786beb16cf03401ae824ca6f5b4be6820fa1291b42cc956e6ef21b793

  • SSDEEP

    24576:x2G/nvxW3WQN2mfFT+LCT7c7gapLtf5UjGgBLEA2NGAQ04tgYXltpcCK5sjmRSPu:xbA39/YL87cZ9tf5UjGgBAA2NTcDlD56

Score
10/10
vjw0rmdiscoveryevasionexecutionpersistencetrojanupxworm

Malware Config

Targets

    • Target

      JaffaCakes118_0b8890e56e80bbdd1502cf079ce7583a

    • Size

      1.4MB

    • MD5

      0b8890e56e80bbdd1502cf079ce7583a

    • SHA1

      dd2898e0e29e621e61f94b09b208daa77d3a916a

    • SHA256

      c7f975e39d71c09f26329414e6e790b2df26808e88529845996c889726af65ff

    • SHA512

      bd35e0ecddfc7f132f7eccd33d5abe40ff92ab129723110a1c5d11decc291af30857d05786beb16cf03401ae824ca6f5b4be6820fa1291b42cc956e6ef21b793

    • SSDEEP

      24576:x2G/nvxW3WQN2mfFT+LCT7c7gapLtf5UjGgBLEA2NGAQ04tgYXltpcCK5sjmRSPu:xbA39/YL87cZ9tf5UjGgBAA2NTcDlD56

    Score
    10/10
    vjw0rmdiscoveryevasionexecutionpersistencetrojanupxworm

    • Vjw0rm

      Vjw0rm is a remote access trojan written in JavaScript.

      trojanwormvjw0rm

    • Vjw0rm family

      vjw0rm

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Drops file in System32 directory

    • 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

Command and Scripting Interpreter

1
T1059

JavaScript

1
T1059.007

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Modify Registry

2
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Credential Access

Discovery

Peripheral Device Discovery

1
T1120

Query Registry

2
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

Tasks