joker | 2154f77e836aba3e505e7a412d4999a5661264e16e129d84b27ed59dcc23d69e | Triage

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Overview

overview

Static

static

2154f77e83...9e.exe

windows7-x64

8

2154f77e83...9e.exe

windows10-2004-x64

Sharing

General

Target

2154f77e836aba3e505e7a412d4999a5661264e16e129d84b27ed59dcc23d69e
Size

74KB
Sample

221012-v7hyxadgbk
MD5

7af2a4536f2383d82d15ec747f20cf96
SHA1

e8028181a0a93a1df105a8cc0e0dc629a1b5d376
SHA256

2154f77e836aba3e505e7a412d4999a5661264e16e129d84b27ed59dcc23d69e
SHA512

2fd3472f5953c596b48fb6b9ae540d066891f92441b8a0302083720655a59a2c60a8405d463890188a1d5af3fda496f4f07501dc0fe29c4c781994a350d696f6
SSDEEP

1536:HJb7bstbnXgXSJJnxSWdXiF0x6KIiuLPjVtFi2eUNGPrbg0se:tObnISJtx7yBiUWlse

Score

10^/10

joker evasion infostealer persistence trojan

Static task

static1

Behavioral task

behavioral1

Sample

2154f77e836aba3e505e7a412d4999a5661264e16e129d84b27ed59dcc23d69e.exe

Resource

win7-20220812-en

windows7-x64

8 signatures

150 seconds

Behavioral task

behavioral2

Sample

2154f77e836aba3e505e7a412d4999a5661264e16e129d84b27ed59dcc23d69e.exe

Resource

win10v2004-20220812-en

joker evasion infostealer persistence trojan

windows10-2004-x64

20 signatures

150 seconds

Malware Config

Targets

- Target
  
  2154f77e836aba3e505e7a412d4999a5661264e16e129d84b27ed59dcc23d69e
- Size
  
  74KB
- MD5
  
  7af2a4536f2383d82d15ec747f20cf96
- SHA1
  
  e8028181a0a93a1df105a8cc0e0dc629a1b5d376
- SHA256
  
  2154f77e836aba3e505e7a412d4999a5661264e16e129d84b27ed59dcc23d69e
- SHA512
  
  2fd3472f5953c596b48fb6b9ae540d066891f92441b8a0302083720655a59a2c60a8405d463890188a1d5af3fda496f4f07501dc0fe29c4c781994a350d696f6
- SSDEEP
  
  1536:HJb7bstbnXgXSJJnxSWdXiF0x6KIiuLPjVtFi2eUNGPrbg0se:tObnISJtx7yBiUWlse
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

Install Root Certificate

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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