joker | 1778f19d3929858a1e526c0c6829898847f80f7c6b1ffcb48664c6bc833429d5 | Triage

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Overview

overview

Static

static

1778f19d39...d5.exe

windows7-x64

1

1778f19d39...d5.exe

windows10-2004-x64

Sharing

General

Target

1778f19d3929858a1e526c0c6829898847f80f7c6b1ffcb48664c6bc833429d5
Size

54KB
Sample

221004-jm8s2sacep
MD5

261818df211314545055d4ef20376ea1
SHA1

27c6d607a1a85a78fba7d80a260d880848390ce6
SHA256

1778f19d3929858a1e526c0c6829898847f80f7c6b1ffcb48664c6bc833429d5
SHA512

e7a908f682d7b31dca120bac8dae69f10e159f1b5f6f010f555e509eaeed6d4f921ff653bd2c87c07a0b24addfeb2333928d9aca1a55b3af92420172388c6664
SSDEEP

768:4V+RWrvMLmYmw043hU0rMPi5/iRPz06m8ZlFmfuDljs169UA8BgubrbslFExIiGT:44RWL30043hkPyKHmfuhTUfBxUl1iGGI

Score

10^/10

joker evasion infostealer persistence trojan

Static task

static1

Behavioral task

behavioral1

Sample

1778f19d3929858a1e526c0c6829898847f80f7c6b1ffcb48664c6bc833429d5.exe

Resource

win7-20220812-en

windows7-x64

0 signatures

150 seconds

Behavioral task

behavioral2

Sample

1778f19d3929858a1e526c0c6829898847f80f7c6b1ffcb48664c6bc833429d5.exe

Resource

win10v2004-20220812-en

joker evasion infostealer persistence trojan

windows10-2004-x64

17 signatures

150 seconds

Malware Config

Targets

- Target
  
  1778f19d3929858a1e526c0c6829898847f80f7c6b1ffcb48664c6bc833429d5
- Size
  
  54KB
- MD5
  
  261818df211314545055d4ef20376ea1
- SHA1
  
  27c6d607a1a85a78fba7d80a260d880848390ce6
- SHA256
  
  1778f19d3929858a1e526c0c6829898847f80f7c6b1ffcb48664c6bc833429d5
- SHA512
  
  e7a908f682d7b31dca120bac8dae69f10e159f1b5f6f010f555e509eaeed6d4f921ff653bd2c87c07a0b24addfeb2333928d9aca1a55b3af92420172388c6664
- SSDEEP
  
  768:4V+RWrvMLmYmw043hU0rMPi5/iRPz06m8ZlFmfuDljs169UA8BgubrbslFExIiGT:44RWL30043hkPyKHmfuhTUfBxUl1iGGI
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
- Enumerates connected drives
  Attempts to read the root path of hard drives other than the default C: drive.
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

Peripheral Device Discovery

Query Registry

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks

static1

behavioral1

behavioral2

jokerevasioninfostealerpersistencetrojan

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