joker | 8b373d39ea359b6b500133929f3820a35e5379a8b1f6e9ea1e5030971d358803 | Triage

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Overview

overview

Static

static

8b373d39ea...03.exe

windows7-x64

1

8b373d39ea...03.exe

windows10-2004-x64

Sharing

General

Target

8b373d39ea359b6b500133929f3820a35e5379a8b1f6e9ea1e5030971d358803
Size

57KB
Sample

221028-webvkahebm
MD5

06d667d7a866e03412aae0e8c01ee8fa
SHA1

5ea0a2537fd0fc241661e70d5ff29d9bbb5aae80
SHA256

8b373d39ea359b6b500133929f3820a35e5379a8b1f6e9ea1e5030971d358803
SHA512

1c9e200bdf30a87a26ae19d56b124247301d8abedaf3dd844ff6dbf2b1a0d8d9048641ad266fb5e8e2fc46015fabf22b39de6006198943cf46bd7095b11131b0
SSDEEP

1536:OaLphh4px/GaOsXDp1CbVZn+K5mayAMIU:OIphho/1OOTNSU

Score

10^/10

joker evasion infostealer persistence trojan

Static task

static1

Behavioral task

behavioral1

Sample

8b373d39ea359b6b500133929f3820a35e5379a8b1f6e9ea1e5030971d358803.exe

Resource

win7-20220812-en

windows7-x64

0 signatures

150 seconds

Behavioral task

behavioral2

Sample

8b373d39ea359b6b500133929f3820a35e5379a8b1f6e9ea1e5030971d358803.exe

Resource

win10v2004-20220812-en

joker evasion infostealer persistence trojan

windows10-2004-x64

16 signatures

150 seconds

Malware Config

Targets

- Target
  
  8b373d39ea359b6b500133929f3820a35e5379a8b1f6e9ea1e5030971d358803
- Size
  
  57KB
- MD5
  
  06d667d7a866e03412aae0e8c01ee8fa
- SHA1
  
  5ea0a2537fd0fc241661e70d5ff29d9bbb5aae80
- SHA256
  
  8b373d39ea359b6b500133929f3820a35e5379a8b1f6e9ea1e5030971d358803
- SHA512
  
  1c9e200bdf30a87a26ae19d56b124247301d8abedaf3dd844ff6dbf2b1a0d8d9048641ad266fb5e8e2fc46015fabf22b39de6006198943cf46bd7095b11131b0
- SSDEEP
  
  1536:OaLphh4px/GaOsXDp1CbVZn+K5mayAMIU:OIphho/1OOTNSU
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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