joker | 7997a273dfec79d0db8c47b9a1c4e1e30c8eb341e2dfe12147e9145f0f5f8dd5 | Triage

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Overview

overview

Static

static

7997a273df...d5.exe

windows7-x64

1

7997a273df...d5.exe

windows10-2004-x64

Sharing

General

Target

7997a273dfec79d0db8c47b9a1c4e1e30c8eb341e2dfe12147e9145f0f5f8dd5
Size

96KB
Sample

221019-plpxfafea2
MD5

a18fc4fd364633a455ea3e50b0efb305
SHA1

899964b9c3566239ba8f822bfe597cbc3121f586
SHA256

7997a273dfec79d0db8c47b9a1c4e1e30c8eb341e2dfe12147e9145f0f5f8dd5
SHA512

494ed7bd6118f6f0cb8d7f8351f94ccbadd1e7287a0b936ed2d5e39b3f8613cf7c0f43de3f4fdf7ead1aba3da45b02ee5c1149e58a4ca97bbd408267c951b5c8
SSDEEP

768:ty837t4FkXJREBku3/nK5xa/24/ki8qkM7B1YlhrIWYHLxqu+TPW1Kljl9nnyQOc:l4PSuPKTBZrO/A5Qr+TOn+eWQ8qM+m

Score

10^/10

joker evasion infostealer persistence trojan

Static task

static1

Behavioral task

behavioral1

Sample

7997a273dfec79d0db8c47b9a1c4e1e30c8eb341e2dfe12147e9145f0f5f8dd5.exe

Resource

win7-20220901-en

windows7-x64

0 signatures

150 seconds

Behavioral task

behavioral2

Sample

7997a273dfec79d0db8c47b9a1c4e1e30c8eb341e2dfe12147e9145f0f5f8dd5.exe

Resource

win10v2004-20220812-en

joker evasion infostealer persistence trojan

windows10-2004-x64

16 signatures

150 seconds

Malware Config

Targets

- Target
  
  7997a273dfec79d0db8c47b9a1c4e1e30c8eb341e2dfe12147e9145f0f5f8dd5
- Size
  
  96KB
- MD5
  
  a18fc4fd364633a455ea3e50b0efb305
- SHA1
  
  899964b9c3566239ba8f822bfe597cbc3121f586
- SHA256
  
  7997a273dfec79d0db8c47b9a1c4e1e30c8eb341e2dfe12147e9145f0f5f8dd5
- SHA512
  
  494ed7bd6118f6f0cb8d7f8351f94ccbadd1e7287a0b936ed2d5e39b3f8613cf7c0f43de3f4fdf7ead1aba3da45b02ee5c1149e58a4ca97bbd408267c951b5c8
- SSDEEP
  
  768:ty837t4FkXJREBku3/nK5xa/24/ki8qkM7B1YlhrIWYHLxqu+TPW1Kljl9nnyQOc:l4PSuPKTBZrO/A5Qr+TOn+eWQ8qM+m
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.
- 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

Process Discovery

Query Registry

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks

static1

behavioral1

behavioral2

jokerevasioninfostealerpersistencetrojan

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