expiro | 13389341451d925f9adda53d96b61c34d2e9e6c015518d1c0972e333c0f10d85 | Triage

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Reports

Overview

overview

Static

static

3

1338934145...85.exe

windows7-x64

1338934145...85.exe

windows10-2004-x64

Sharing

General

Target

13389341451d925f9adda53d96b61c34d2e9e6c015518d1c0972e333c0f10d85.exe
Size

638KB
Sample

241206-fz127askby
MD5

b341f5ab68a8455d187ef2db86d71def
SHA1

e68c26be8392a4e144e877be7547e864bdf05377
SHA256

13389341451d925f9adda53d96b61c34d2e9e6c015518d1c0972e333c0f10d85
SHA512

45a9ff459909aac6a72ae61573864e60fcc48e99b406afe9c8b741740831334119e11e85ae7614a78033da341d9d1a21e380b6a8549882741cde52034d16cc6b
SSDEEP

12288:iRRRaMMMMM2MMMMM/JS2f47CQOcHJW6/5P+B8+8EnAf5:iRRRaMMMMM2MMMMM/JS7C5KW05mB8+7i

Score

10^/10

expiro backdoor credential_access discovery spyware stealer

Static task

static1

1 signatures

Behavioral task

behavioral1

Sample

13389341451d925f9adda53d96b61c34d2e9e6c015518d1c0972e333c0f10d85.exe

Resource

win7-20240903-en

expiro backdoor credential_access discovery spyware stealer

windows7-x64

16 signatures

150 seconds

Behavioral task

behavioral2

Sample

13389341451d925f9adda53d96b61c34d2e9e6c015518d1c0972e333c0f10d85.exe

Resource

win10v2004-20241007-en

expiro backdoor credential_access discovery spyware stealer

windows10-2004-x64

14 signatures

150 seconds

Malware Config

Targets

- Target
  
  13389341451d925f9adda53d96b61c34d2e9e6c015518d1c0972e333c0f10d85.exe
- Size
  
  638KB
- MD5
  
  b341f5ab68a8455d187ef2db86d71def
- SHA1
  
  e68c26be8392a4e144e877be7547e864bdf05377
- SHA256
  
  13389341451d925f9adda53d96b61c34d2e9e6c015518d1c0972e333c0f10d85
- SHA512
  
  45a9ff459909aac6a72ae61573864e60fcc48e99b406afe9c8b741740831334119e11e85ae7614a78033da341d9d1a21e380b6a8549882741cde52034d16cc6b
- SSDEEP
  
  12288:iRRRaMMMMM2MMMMM/JS2f47CQOcHJW6/5P+B8+8EnAf5:iRRRaMMMMM2MMMMM/JS7C5KW05mB8+7i
Score

10^/10

expiro backdoor credential_access discovery spyware stealer
- 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
- 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

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_accessdiscoveryspywarestealer

behavioral2

expirobackdoorcredential_accessdiscoveryspywarestealer

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