joker | b897b6b0ab04f40c82baee47e302a5201adb0efe6a70131f57f0c9bc023f3cc0 | Triage

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Overview

overview

Static

static

b897b6b0ab...c0.exe

windows7-x64

b897b6b0ab...c0.exe

windows10-2004-x64

Sharing

General

Target

b897b6b0ab04f40c82baee47e302a5201adb0efe6a70131f57f0c9bc023f3cc0
Size

58KB
Sample

220919-aake9afhd8
MD5

3d03d06498147d9797b194483343e7bc
SHA1

82a6fc72b53a6172552f5652eeff3978193c4bd5
SHA256

b897b6b0ab04f40c82baee47e302a5201adb0efe6a70131f57f0c9bc023f3cc0
SHA512

dfb51b709a006baf3da587c681c93cbc94802aa0e47daae3ce5ecb97c4a9a7296527528335482b05cfbcc278b5f5651e10179dc9ef3a913015f3cd102370e84c
SSDEEP

768:61tCn/5uXkmSAV+HIJVtGTdLbRbMlvgIMYToQFTZJK536KQyi/7cgqT:WqoX8AV+otOdfIgIMYToQF9JKl3iTcgq

Score

10^/10

joker evasion infostealer persistence trojan

Static task

static1

Behavioral task

behavioral1

Sample

b897b6b0ab04f40c82baee47e302a5201adb0efe6a70131f57f0c9bc023f3cc0.exe

Resource

win7-20220901-en

joker evasion infostealer persistence trojan

windows7-x64

17 signatures

150 seconds

Behavioral task

behavioral2

Sample

b897b6b0ab04f40c82baee47e302a5201adb0efe6a70131f57f0c9bc023f3cc0.exe

Resource

win10v2004-20220901-en

joker evasion infostealer persistence trojan

windows10-2004-x64

16 signatures

150 seconds

Malware Config

Targets

- Target
  
  b897b6b0ab04f40c82baee47e302a5201adb0efe6a70131f57f0c9bc023f3cc0
- Size
  
  58KB
- MD5
  
  3d03d06498147d9797b194483343e7bc
- SHA1
  
  82a6fc72b53a6172552f5652eeff3978193c4bd5
- SHA256
  
  b897b6b0ab04f40c82baee47e302a5201adb0efe6a70131f57f0c9bc023f3cc0
- SHA512
  
  dfb51b709a006baf3da587c681c93cbc94802aa0e47daae3ce5ecb97c4a9a7296527528335482b05cfbcc278b5f5651e10179dc9ef3a913015f3cd102370e84c
- SSDEEP
  
  768:61tCn/5uXkmSAV+HIJVtGTdLbRbMlvgIMYToQFTZJK536KQyi/7cgqT:WqoX8AV+otOdfIgIMYToQF9JKl3iTcgq
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.
- 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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