joker | 1b9e70dbc5ca79b94c2bc3d320d73c651bbebbfe844951478004a8a2da72105a | Triage

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Overview

overview

Static

static

1b9e70dbc5...5a.exe

windows7-x64

1

1b9e70dbc5...5a.exe

windows10-2004-x64

Sharing

General

Target

1b9e70dbc5ca79b94c2bc3d320d73c651bbebbfe844951478004a8a2da72105a
Size

54KB
Sample

221020-haxdtahgf6
MD5

81592a3f75a99dfa045ad7c81845644e
SHA1

0f835a0d5c77df9280de6931e83e7b48b32d5504
SHA256

1b9e70dbc5ca79b94c2bc3d320d73c651bbebbfe844951478004a8a2da72105a
SHA512

9232bdcfd598ae54231bcd7b25f1084fd7ef3680b2594e79fc841d48c5448a3e7b05057c8ebefbdbf6b9ca904bbcb7fed2a6e4c2db040391693e3f02939ea32a
SSDEEP

1536:/SL+LGddTrHiU2YkRus1ttxshjL7kAq3nq:/p85ziUxkRus5u7kR3q

Score

10^/10

joker evasion infostealer persistence trojan

Static task

static1

Behavioral task

behavioral1

Sample

1b9e70dbc5ca79b94c2bc3d320d73c651bbebbfe844951478004a8a2da72105a.exe

Resource

win7-20220812-en

windows7-x64

0 signatures

150 seconds

Behavioral task

behavioral2

Sample

1b9e70dbc5ca79b94c2bc3d320d73c651bbebbfe844951478004a8a2da72105a.exe

Resource

win10v2004-20220901-en

joker evasion infostealer persistence trojan

windows10-2004-x64

16 signatures

150 seconds

Malware Config

Targets

- Target
  
  1b9e70dbc5ca79b94c2bc3d320d73c651bbebbfe844951478004a8a2da72105a
- Size
  
  54KB
- MD5
  
  81592a3f75a99dfa045ad7c81845644e
- SHA1
  
  0f835a0d5c77df9280de6931e83e7b48b32d5504
- SHA256
  
  1b9e70dbc5ca79b94c2bc3d320d73c651bbebbfe844951478004a8a2da72105a
- SHA512
  
  9232bdcfd598ae54231bcd7b25f1084fd7ef3680b2594e79fc841d48c5448a3e7b05057c8ebefbdbf6b9ca904bbcb7fed2a6e4c2db040391693e3f02939ea32a
- SSDEEP
  
  1536:/SL+LGddTrHiU2YkRus1ttxshjL7kAq3nq:/p85ziUxkRus5u7kR3q
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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