joker | bf72fb442ceeb970bffd5846d7031b059fe3bdbb4fe52af51fac74d40c1feaf9 | Triage

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Overview

overview

Static

static

bf72fb442c...f9.exe

windows7-x64

1

bf72fb442c...f9.exe

windows10-2004-x64

Sharing

General

Target

bf72fb442ceeb970bffd5846d7031b059fe3bdbb4fe52af51fac74d40c1feaf9
Size

140KB
Sample

221014-emg8wafeh3
MD5

4f0170abae1b7f91495d8480227e2a78
SHA1

8eeff34ff020a60276e25e05c923241ee3dce82c
SHA256

bf72fb442ceeb970bffd5846d7031b059fe3bdbb4fe52af51fac74d40c1feaf9
SHA512

615ee542d435f71543e7a965886d6ff73b3fb09b3ce493ba2a0dc396aed09598c3cbd748c9c246676eda873dfc56a55b622d4c384c240a873e364d8bf41be12e
SSDEEP

1536:nnMg2OVLjlevyaRLBnLuRgiaUxRIxecePKH5nKLV+x:M0LpeTLlamiaUxRIxecePKQs

Score

10^/10

joker evasion infostealer persistence trojan

Static task

static1

Behavioral task

behavioral1

Sample

bf72fb442ceeb970bffd5846d7031b059fe3bdbb4fe52af51fac74d40c1feaf9.exe

Resource

win7-20220812-en

windows7-x64

0 signatures

150 seconds

Behavioral task

behavioral2

Sample

bf72fb442ceeb970bffd5846d7031b059fe3bdbb4fe52af51fac74d40c1feaf9.exe

Resource

win10v2004-20220812-en

joker evasion infostealer persistence trojan

windows10-2004-x64

17 signatures

150 seconds

Malware Config

Targets

- Target
  
  bf72fb442ceeb970bffd5846d7031b059fe3bdbb4fe52af51fac74d40c1feaf9
- Size
  
  140KB
- MD5
  
  4f0170abae1b7f91495d8480227e2a78
- SHA1
  
  8eeff34ff020a60276e25e05c923241ee3dce82c
- SHA256
  
  bf72fb442ceeb970bffd5846d7031b059fe3bdbb4fe52af51fac74d40c1feaf9
- SHA512
  
  615ee542d435f71543e7a965886d6ff73b3fb09b3ce493ba2a0dc396aed09598c3cbd748c9c246676eda873dfc56a55b622d4c384c240a873e364d8bf41be12e
- SSDEEP
  
  1536:nnMg2OVLjlevyaRLBnLuRgiaUxRIxecePKH5nKLV+x:M0LpeTLlamiaUxRIxecePKQs
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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