joker | 3f2423b591bd2bd8dba0403f54dc721eabdada0feb4f768c93ce33989b3ca2f8 | Triage

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Overview

overview

Static

static

3f2423b591...f8.exe

windows7-x64

3f2423b591...f8.exe

windows10-2004-x64

Sharing

General

Target

3f2423b591bd2bd8dba0403f54dc721eabdada0feb4f768c93ce33989b3ca2f8
Size

168KB
Sample

220919-e1fbfacafp
MD5

503fb279c621a20bb9e9eda95be50929
SHA1

59f93e4d8ef0213b5bbb6dfeea5091f6e00e8363
SHA256

3f2423b591bd2bd8dba0403f54dc721eabdada0feb4f768c93ce33989b3ca2f8
SHA512

a04f05e62d8dcd546817d163d1e9420dc6d1ca9cf7312555518ecc2e8dcc6716f128389faf57f29295bdb1e0cdbcfbe2d1e616d18c4da88b0175c464ce928e8c
SSDEEP

1536:KEQivQEwuyv+mMiIAkIxKmQHv51sksMDnHGIAYsMKWqD7WCDYVRazfjnfz+X:nnYLuyv+mMi5kWbWH71AJM3IymYVmD0

Score

10^/10

joker evasion infostealer persistence trojan

Static task

static1

Behavioral task

behavioral1

Sample

3f2423b591bd2bd8dba0403f54dc721eabdada0feb4f768c93ce33989b3ca2f8.exe

Resource

win7-20220901-en

joker evasion infostealer persistence trojan

windows7-x64

18 signatures

150 seconds

Behavioral task

behavioral2

Sample

3f2423b591bd2bd8dba0403f54dc721eabdada0feb4f768c93ce33989b3ca2f8.exe

Resource

win10v2004-20220812-en

joker evasion infostealer persistence trojan

windows10-2004-x64

16 signatures

150 seconds

Malware Config

Targets

- Target
  
  3f2423b591bd2bd8dba0403f54dc721eabdada0feb4f768c93ce33989b3ca2f8
- Size
  
  168KB
- MD5
  
  503fb279c621a20bb9e9eda95be50929
- SHA1
  
  59f93e4d8ef0213b5bbb6dfeea5091f6e00e8363
- SHA256
  
  3f2423b591bd2bd8dba0403f54dc721eabdada0feb4f768c93ce33989b3ca2f8
- SHA512
  
  a04f05e62d8dcd546817d163d1e9420dc6d1ca9cf7312555518ecc2e8dcc6716f128389faf57f29295bdb1e0cdbcfbe2d1e616d18c4da88b0175c464ce928e8c
- SSDEEP
  
  1536:KEQivQEwuyv+mMiIAkIxKmQHv51sksMDnHGIAYsMKWqD7WCDYVRazfjnfz+X:nnYLuyv+mMi5kWbWH71AJM3IymYVmD0
Score

10^/10

joker evasion infostealer persistence trojan
- joker
  Joker is an Android malware that targets billing and SMS fraud.
  infostealer trojan joker
- Executes dropped EXE
- Sets file to hidden
  Modifies file attributes to stop it showing in Explorer etc.
  evasion
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Deletes itself
- Loads dropped DLL
- Adds Run key to start application
  persistence
behavioral1 behavioral2

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

Registry Run Keys / Startup Folder

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Query Registry

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks

static1

behavioral1

jokerevasioninfostealerpersistencetrojan

behavioral2

jokerevasioninfostealerpersistencetrojan

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