expiro | e4bc1355260aeed8b45a3f61e1c7def8fab46a65e9162b990b512401f243be73 | Triage

Sharing

General

Target

e4bc1355260aeed8b45a3f61e1c7def8fab46a65e9162b990b512401f243be73.exe
Size

770KB
Sample

250116-nxsl2aymfy
MD5

5a271a2b06d5ffd0f67b5895f3a01897
SHA1

a7a9fd3660f0c5c87d201b5a06c9ac7ec18a0951
SHA256

e4bc1355260aeed8b45a3f61e1c7def8fab46a65e9162b990b512401f243be73
SHA512

c7781c0780d6b929c101dd5c295426bd9a3e3689ccd53b8b9a5ad64341738757c3f471121b788b10629fb9c6be8dd948f181c8972b795a8138ba47e20d2e81ea
SSDEEP

24576:FsqSroAupL8uSrOoMxossbnJivQjZFnyHYPd:FGD+LzG7hsEnJGQ1py4Pd

Score

10^/10

expiro backdoor credential_access discovery evasion spyware stealer trojan

Malware Config

Targets

- Target
  
  e4bc1355260aeed8b45a3f61e1c7def8fab46a65e9162b990b512401f243be73.exe
- Size
  
  770KB
- MD5
  
  5a271a2b06d5ffd0f67b5895f3a01897
- SHA1
  
  a7a9fd3660f0c5c87d201b5a06c9ac7ec18a0951
- SHA256
  
  e4bc1355260aeed8b45a3f61e1c7def8fab46a65e9162b990b512401f243be73
- SHA512
  
  c7781c0780d6b929c101dd5c295426bd9a3e3689ccd53b8b9a5ad64341738757c3f471121b788b10629fb9c6be8dd948f181c8972b795a8138ba47e20d2e81ea
- SSDEEP
  
  24576:FsqSroAupL8uSrOoMxossbnJivQjZFnyHYPd:FGD+LzG7hsEnJGQ1py4Pd
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
- Loads dropped DLL
- 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