joker | 41b8d73634f16f56e3684388a9c1e39b090340774eb3c9cebe3302d317d219c4 | Triage

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Reports

Overview

overview

Static

static

41b8d73634...c4.exe

windows7-x64

41b8d73634...c4.exe

windows10-2004-x64

Sharing

General

Target

41b8d73634f16f56e3684388a9c1e39b090340774eb3c9cebe3302d317d219c4
Size

57KB
Sample

220919-ey3nyscaak
MD5

619444aaaccb2409893d167eb6fdce91
SHA1

26431fa33a258eea1f5aca88f57a9c5874e18b4a
SHA256

41b8d73634f16f56e3684388a9c1e39b090340774eb3c9cebe3302d317d219c4
SHA512

9feef92dd0c85739e9b54de18190e6847d5219337ec967df139837100a72de97fb8e24b6e01dfab98f4c2725fe267dc0a9ab7c04c149140beb656f116e2a7c0d
SSDEEP

1536:6qF+qJB0ODqnmmmcLLWBPkUZ9vAbOu/Ys5MpmMe4O:RF5J2OGnmmJLtogOu+mMLO

Score

10^/10

joker evasion infostealer persistence trojan

Static task

static1

Behavioral task

behavioral1

Sample

41b8d73634f16f56e3684388a9c1e39b090340774eb3c9cebe3302d317d219c4.exe

Resource

win7-20220901-en

joker evasion infostealer persistence trojan

windows7-x64

18 signatures

150 seconds

Behavioral task

behavioral2

Sample

41b8d73634f16f56e3684388a9c1e39b090340774eb3c9cebe3302d317d219c4.exe

Resource

win10v2004-20220812-en

joker evasion infostealer persistence trojan

windows10-2004-x64

16 signatures

150 seconds

Malware Config

Targets

- Target
  
  41b8d73634f16f56e3684388a9c1e39b090340774eb3c9cebe3302d317d219c4
- Size
  
  57KB
- MD5
  
  619444aaaccb2409893d167eb6fdce91
- SHA1
  
  26431fa33a258eea1f5aca88f57a9c5874e18b4a
- SHA256
  
  41b8d73634f16f56e3684388a9c1e39b090340774eb3c9cebe3302d317d219c4
- SHA512
  
  9feef92dd0c85739e9b54de18190e6847d5219337ec967df139837100a72de97fb8e24b6e01dfab98f4c2725fe267dc0a9ab7c04c149140beb656f116e2a7c0d
- SSDEEP
  
  1536:6qF+qJB0ODqnmmmcLLWBPkUZ9vAbOu/Ys5MpmMe4O:RF5J2OGnmmJLtogOu+mMLO
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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