expiro | 5483834382781507cda0a37caa8ee98a0b48166d7db5dc040bfcc19c41212628 | Triage

Sharing

General

Target

JaffaCakes118_657e840c027a6c8eaf958cee20ebaf2d
Size

406KB
Sample

250102-qx66jatmfz
MD5

657e840c027a6c8eaf958cee20ebaf2d
SHA1

eec553924c9cae436a0170b2d3cbf9d5321242c0
SHA256

5483834382781507cda0a37caa8ee98a0b48166d7db5dc040bfcc19c41212628
SHA512

4e7231d37805c3a1df853cb71b75c4e9705db2857859c6bc22afd2d04343473e70be0ff9a5707ab3ee3cca09469260c116deef2272a5c90db35482787484eadd
SSDEEP

12288:dvqlqSrzEAupLiPuSrN0rMaAg74Z/R2/6LM/5OPOOYp+Bb:JsqSroAupL8uSrOrMXfbPOOC+B

Score

10^/10

expiro backdoor credential_access discovery evasion spyware stealer trojan

Malware Config

Targets

- Target
  
  JaffaCakes118_657e840c027a6c8eaf958cee20ebaf2d
- Size
  
  406KB
- MD5
  
  657e840c027a6c8eaf958cee20ebaf2d
- SHA1
  
  eec553924c9cae436a0170b2d3cbf9d5321242c0
- SHA256
  
  5483834382781507cda0a37caa8ee98a0b48166d7db5dc040bfcc19c41212628
- SHA512
  
  4e7231d37805c3a1df853cb71b75c4e9705db2857859c6bc22afd2d04343473e70be0ff9a5707ab3ee3cca09469260c116deef2272a5c90db35482787484eadd
- SSDEEP
  
  12288:dvqlqSrzEAupLiPuSrN0rMaAg74Z/R2/6LM/5OPOOYp+Bb:JsqSroAupL8uSrOrMXfbPOOC+B
Score

10^/10

expiro backdoor credential_access discovery evasion spyware stealer trojan
- Expiro family
  expiro
- Expiro, m0yv
  Expiro aka m0yv is a multi-functional backdoor written in C++.
  backdoor expiro
- Expiro payload
  backdoor
- Executes dropped EXE
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Unsecured Credentials: Credentials In Files
  Steal credentials from unsecured files.
  credential_access stealer
- Windows security modification
  evasion trojan
- Checks installed software on the system
  Looks up Uninstall key entries in the registry to enumerate software on the system.
  discovery
- Drops Chrome extension
- Enumerates connected drives
  Attempts to read the root path of hard drives other than the default C: drive.
- Drops file in System32 directory
behavioral1 behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Impair Defenses

Disable or Modify Tools

Modify Registry

Credential Access

Credentials from Password Stores

Credentials from Web Browsers

Unsecured Credentials

Credentials In Files

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

System Location Discovery

System Language Discovery

Lateral Movement

Collection

Data from Local System

Command and Control

Exfiltration

Impact

Tasks

static1

behavioral1

expirobackdoorcredential_accessdiscoveryevasionspywarestealertrojan

behavioral2