joker | 737f45d9b1f889d1b36be5d49d54a0135c7ded9c5be91fc09d0c57abdcbd0a80 | Triage

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Reports

Overview

overview

Static

static

737f45d9b1...80.exe

windows7-x64

1

737f45d9b1...80.exe

windows10-2004-x64

Sharing

General

Target

737f45d9b1f889d1b36be5d49d54a0135c7ded9c5be91fc09d0c57abdcbd0a80
Size

54KB
Sample

221031-a8jllshbb4
MD5

a150dc1f94f1702ccf642addc469e1f8
SHA1

bfaa02b36c3db772906bef8baf8f40a33724f998
SHA256

737f45d9b1f889d1b36be5d49d54a0135c7ded9c5be91fc09d0c57abdcbd0a80
SHA512

5274a52992903b7bb30330e362b9b2209f1492eb657da68311c3c20fb609a8bf5603d3659215ed11ffc4964a2f18b07d50e28bcb50c3f9aa5b8ecdacdb25653c
SSDEEP

1536:BLiSTK2DKfhw/kmBjMEWt1gKWSgfcmjxWNGe:BLiST9D2CMmBoE+gKOfnjJe

Score

10^/10

joker evasion infostealer persistence trojan

Static task

static1

Behavioral task

behavioral1

Sample

737f45d9b1f889d1b36be5d49d54a0135c7ded9c5be91fc09d0c57abdcbd0a80.exe

Resource

win7-20220812-en

windows7-x64

0 signatures

150 seconds

Behavioral task

behavioral2

Sample

737f45d9b1f889d1b36be5d49d54a0135c7ded9c5be91fc09d0c57abdcbd0a80.exe

Resource

win10v2004-20220812-en

joker evasion infostealer persistence trojan

windows10-2004-x64

16 signatures

150 seconds

Malware Config

Targets

- Target
  
  737f45d9b1f889d1b36be5d49d54a0135c7ded9c5be91fc09d0c57abdcbd0a80
- Size
  
  54KB
- MD5
  
  a150dc1f94f1702ccf642addc469e1f8
- SHA1
  
  bfaa02b36c3db772906bef8baf8f40a33724f998
- SHA256
  
  737f45d9b1f889d1b36be5d49d54a0135c7ded9c5be91fc09d0c57abdcbd0a80
- SHA512
  
  5274a52992903b7bb30330e362b9b2209f1492eb657da68311c3c20fb609a8bf5603d3659215ed11ffc4964a2f18b07d50e28bcb50c3f9aa5b8ecdacdb25653c
- SSDEEP
  
  1536:BLiSTK2DKfhw/kmBjMEWt1gKWSgfcmjxWNGe:BLiST9D2CMmBoE+gKOfnjJe
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

behavioral2

jokerevasioninfostealerpersistencetrojan

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