expiro | f02afc1a59cb84471acb358889aeec2e83f6d5e2857e452093e593ad40eb1bbc | Triage

Sharing

General

Target

JaffaCakes118_52ec5fefeafaf1ccec560df7ecee6af7
Size

520KB
Sample

250101-nctzcswjgj
MD5

52ec5fefeafaf1ccec560df7ecee6af7
SHA1

732d242bc25b2b9778b9dfeeadbccc086afad820
SHA256

f02afc1a59cb84471acb358889aeec2e83f6d5e2857e452093e593ad40eb1bbc
SHA512

a28505051de5d939ef0ee6508c2b4ecbc9a3460571a6721fc6bed40b9b9e795086a892305d383d709d2f0905a928c1ee700e4c34ca6df0b6926bb71b8ebf7a06
SSDEEP

12288:BCIYdMeN7hyk5O4w6X8TDKAkqLM3UsPxn4+633RWTbqOYYw+TMEA0Ld:tYHlykdAkqLM3UmJI3EmN+TMEA0Ld

Score

10^/10

expiro backdoor credential_access discovery evasion spyware stealer trojan

Malware Config

Targets

- Target
  
  JaffaCakes118_52ec5fefeafaf1ccec560df7ecee6af7
- Size
  
  520KB
- MD5
  
  52ec5fefeafaf1ccec560df7ecee6af7
- SHA1
  
  732d242bc25b2b9778b9dfeeadbccc086afad820
- SHA256
  
  f02afc1a59cb84471acb358889aeec2e83f6d5e2857e452093e593ad40eb1bbc
- SHA512
  
  a28505051de5d939ef0ee6508c2b4ecbc9a3460571a6721fc6bed40b9b9e795086a892305d383d709d2f0905a928c1ee700e4c34ca6df0b6926bb71b8ebf7a06
- SSDEEP
  
  12288:BCIYdMeN7hyk5O4w6X8TDKAkqLM3UsPxn4+633RWTbqOYYw+TMEA0Ld:tYHlykdAkqLM3UmJI3EmN+TMEA0Ld
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