joker | 4c328d76ae79db36409de9630da1c6f1cf483786d0477e8b3ed8d0776150e7e1 | Triage

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Reports

Overview

overview

Static

static

4c328d76ae...e1.exe

windows7-x64

4c328d76ae...e1.exe

windows10-2004-x64

Sharing

General

Target

4c328d76ae79db36409de9630da1c6f1cf483786d0477e8b3ed8d0776150e7e1
Size

168KB
Sample

220919-eztgnscadm
MD5

82bc71e887d378678762aec54c8a22b3
SHA1

06847ca601ee625cf8f8f804d537ce77599f4289
SHA256

4c328d76ae79db36409de9630da1c6f1cf483786d0477e8b3ed8d0776150e7e1
SHA512

ec6673c5e84978326a7d77d6315ad09c484ca970a6dc12553029d22052aef28b8fbba5e87a6ef5cad4e2274b2c345389bf51f1ce3f62cc0bb788167a62fd599e
SSDEEP

1536:/ocNrKPAn4Ag+M9ydPW8XyvW0V4Leu0vU+o/elf6TWJ1fY+U:Awr0An4AEMO8XkV6ezvVo/eQYO

Score

10^/10

joker evasion infostealer persistence trojan

Static task

static1

Behavioral task

behavioral1

Sample

4c328d76ae79db36409de9630da1c6f1cf483786d0477e8b3ed8d0776150e7e1.exe

Resource

win7-20220812-en

joker evasion infostealer persistence trojan

windows7-x64

17 signatures

150 seconds

Behavioral task

behavioral2

Sample

4c328d76ae79db36409de9630da1c6f1cf483786d0477e8b3ed8d0776150e7e1.exe

Resource

win10v2004-20220901-en

joker evasion infostealer persistence trojan

windows10-2004-x64

16 signatures

150 seconds

Malware Config

Targets

- Target
  
  4c328d76ae79db36409de9630da1c6f1cf483786d0477e8b3ed8d0776150e7e1
- Size
  
  168KB
- MD5
  
  82bc71e887d378678762aec54c8a22b3
- SHA1
  
  06847ca601ee625cf8f8f804d537ce77599f4289
- SHA256
  
  4c328d76ae79db36409de9630da1c6f1cf483786d0477e8b3ed8d0776150e7e1
- SHA512
  
  ec6673c5e84978326a7d77d6315ad09c484ca970a6dc12553029d22052aef28b8fbba5e87a6ef5cad4e2274b2c345389bf51f1ce3f62cc0bb788167a62fd599e
- SSDEEP
  
  1536:/ocNrKPAn4Ag+M9ydPW8XyvW0V4Leu0vU+o/elf6TWJ1fY+U:Awr0An4AEMO8XkV6ezvVo/eQYO
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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