expiro | b1712d5dae24c33010dde7658357b424c8dcdf39f8d8fd15ff728531b3c891eb | Triage

Sharing

General

Target

b1712d5dae24c33010dde7658357b424c8dcdf39f8d8fd15ff728531b3c891ebN.exe
Size

770KB
Sample

250116-wamfha1pcy
MD5

c55ab05632041ddfe5bd75a64581d560
SHA1

3df450510db96e99dea7abb7627d3e3e7bd5bcbc
SHA256

b1712d5dae24c33010dde7658357b424c8dcdf39f8d8fd15ff728531b3c891eb
SHA512

daee95079c2e62652cde00b53a0c7ba26856cec4f5c5f35a22b23757f8066a434cd779940e737a5ca6cd146f4e876a830d8b15ec1156ed41ee1f8f2b569ea0ac
SSDEEP

24576:FsqSroAupL8uSrOoMxossbnJivQjZFnyHYP:FGD+LzG7hsEnJGQ1py4P

Score

10^/10

expiro backdoor credential_access discovery evasion spyware stealer trojan

Malware Config

Targets

- Target
  
  b1712d5dae24c33010dde7658357b424c8dcdf39f8d8fd15ff728531b3c891ebN.exe
- Size
  
  770KB
- MD5
  
  c55ab05632041ddfe5bd75a64581d560
- SHA1
  
  3df450510db96e99dea7abb7627d3e3e7bd5bcbc
- SHA256
  
  b1712d5dae24c33010dde7658357b424c8dcdf39f8d8fd15ff728531b3c891eb
- SHA512
  
  daee95079c2e62652cde00b53a0c7ba26856cec4f5c5f35a22b23757f8066a434cd779940e737a5ca6cd146f4e876a830d8b15ec1156ed41ee1f8f2b569ea0ac
- SSDEEP
  
  24576:FsqSroAupL8uSrOoMxossbnJivQjZFnyHYP:FGD+LzG7hsEnJGQ1py4P
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