joker | 4c73935480bfcbe7a750100c35eec48a5da16bca5b44cd77ae025224d95cfac7 | Triage

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Reports

Overview

overview

Static

static

4c73935480...c7.exe

windows7-x64

4c73935480...c7.exe

windows10-2004-x64

Sharing

General

Target

4c73935480bfcbe7a750100c35eec48a5da16bca5b44cd77ae025224d95cfac7
Size

164KB
Sample

221002-27pj1sgbgj
MD5

6498891a348c588fad43b4645c090a00
SHA1

fec1bb4e3a7bf313e4d6e4bb7e8c9b8da982fb45
SHA256

4c73935480bfcbe7a750100c35eec48a5da16bca5b44cd77ae025224d95cfac7
SHA512

2e091165379d056e55d4a436c1d179e102e1283db5712ee8485b3bc9cafc087f191839b1f48488376c042ec0256f5d5c5ef12fe5f15dc1aacf049b4fddb7c8fa
SSDEEP

1536:fO2bUCAKF9gN72keUvYQKFUi4doJqaRQo9ioSlbfD4dDWRlWVRK8+m:doIqN7yw3zdoJbCo9mln4FLB

Score

10^/10

joker evasion infostealer persistence trojan

Static task

static1

Behavioral task

behavioral1

Sample

4c73935480bfcbe7a750100c35eec48a5da16bca5b44cd77ae025224d95cfac7.exe

Resource

win7-20220812-en

joker evasion infostealer persistence trojan

windows7-x64

15 signatures

150 seconds

Behavioral task

behavioral2

Sample

4c73935480bfcbe7a750100c35eec48a5da16bca5b44cd77ae025224d95cfac7.exe

Resource

win10v2004-20220901-en

joker evasion infostealer persistence trojan

windows10-2004-x64

16 signatures

150 seconds

Malware Config

Targets

- Target
  
  4c73935480bfcbe7a750100c35eec48a5da16bca5b44cd77ae025224d95cfac7
- Size
  
  164KB
- MD5
  
  6498891a348c588fad43b4645c090a00
- SHA1
  
  fec1bb4e3a7bf313e4d6e4bb7e8c9b8da982fb45
- SHA256
  
  4c73935480bfcbe7a750100c35eec48a5da16bca5b44cd77ae025224d95cfac7
- SHA512
  
  2e091165379d056e55d4a436c1d179e102e1283db5712ee8485b3bc9cafc087f191839b1f48488376c042ec0256f5d5c5ef12fe5f15dc1aacf049b4fddb7c8fa
- SSDEEP
  
  1536:fO2bUCAKF9gN72keUvYQKFUi4doJqaRQo9ioSlbfD4dDWRlWVRK8+m:doIqN7yw3zdoJbCo9mln4FLB
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

Query Registry

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks

static1

behavioral1

jokerevasioninfostealerpersistencetrojan

behavioral2

jokerevasioninfostealerpersistencetrojan

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