expiro | fc086c346144e6cf4415a81a7e9cbccdb50f820d8440df8e4460b9627b1f52eb | Triage

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Overview

overview

Static

static

3

JaffaCakes...04.exe

windows7-x64

JaffaCakes...04.exe

windows10-2004-x64

Sharing

General

Target

JaffaCakes118_37bbed81fc35bf98cd3cf874119b9604
Size

406KB
Sample

241231-z8l46ssmdn
MD5

37bbed81fc35bf98cd3cf874119b9604
SHA1

9fbc0c9af3393a2c67083291112fb624e535b460
SHA256

fc086c346144e6cf4415a81a7e9cbccdb50f820d8440df8e4460b9627b1f52eb
SHA512

1b8cbc0018204113caca12a05fb2d6e491174411e9561935ecc4ca69bd1e00f7710966d3c7975b64c6dfb0535c7ecb67fef0bccaaa874845fc26430ed70af903
SSDEEP

6144:5Izfx0tsmxGjd9suGjZIDhAJSbnVrw8/LppZ2oqIqOEhspJ:UfqOwGTlWuN0Qrw62obqap

Score

10^/10

expiro backdoor discovery evasion trojan

Static task

static1

1 signatures

Behavioral task

behavioral1

Sample

JaffaCakes118_37bbed81fc35bf98cd3cf874119b9604.exe

Resource

win7-20240903-en

expiro backdoor

windows7-x64

3 signatures

150 seconds

Behavioral task

behavioral2

Sample

JaffaCakes118_37bbed81fc35bf98cd3cf874119b9604.exe

Resource

win10v2004-20241007-en

expiro backdoor discovery evasion trojan

windows10-2004-x64

19 signatures

150 seconds

Malware Config

Targets

- Target
  
  JaffaCakes118_37bbed81fc35bf98cd3cf874119b9604
- Size
  
  406KB
- MD5
  
  37bbed81fc35bf98cd3cf874119b9604
- SHA1
  
  9fbc0c9af3393a2c67083291112fb624e535b460
- SHA256
  
  fc086c346144e6cf4415a81a7e9cbccdb50f820d8440df8e4460b9627b1f52eb
- SHA512
  
  1b8cbc0018204113caca12a05fb2d6e491174411e9561935ecc4ca69bd1e00f7710966d3c7975b64c6dfb0535c7ecb67fef0bccaaa874845fc26430ed70af903
- SSDEEP
  
  6144:5Izfx0tsmxGjd9suGjZIDhAJSbnVrw8/LppZ2oqIqOEhspJ:UfqOwGTlWuN0Qrw62obqap
Score

10^/10

expiro backdoor discovery evasion trojan
- Expiro family
  expiro
- Expiro, m0yv
  Expiro aka m0yv is a multi-functional backdoor written in C++.
  backdoor expiro
- Expiro payload
  backdoor
- Disables taskbar notifications via registry modification
  evasion
- Executes dropped EXE
- 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
- 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

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

System Location Discovery

System Language Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks

static1

behavioral1

behavioral2

expirobackdoordiscoveryevasiontrojan

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