expiro | 0510ab3b5a32a3e62b489d983b32fea1cc99e14a56829147cf8d4ab04ddf4633

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-01-2025 11:59

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General

Target

JaffaCakes118_79922431358ffdf7bd11f917b1a61f20.exe
Size

593KB
MD5

79922431358ffdf7bd11f917b1a61f20
SHA1

7695da641ade769a9bca332cc6b00fae0ee942d3
SHA256

0510ab3b5a32a3e62b489d983b32fea1cc99e14a56829147cf8d4ab04ddf4633
SHA512

f25b255b1343dc7e881e7818ea5b544061e3eb062b5b21e0956a80ff5899b8bb43d1704f0600c22517c9bb49a676bab92800204227daf548ade2e58649d5e2bc
SSDEEP

12288:irLccn5+7npQiwcFfmXep3QXszPqampI2K6c6gGlvgsINxpW0j:ioLpHk+QXsOW7x6gGlvbgpT

Score

10^/10

expiro backdoor discovery

Malware Config

Signatures

Expiro family
expiro
Expiro, m0yv
Expiro aka m0yv is a multi-functional backdoor written in C++.
backdoor expiro

Expiro payload 1 IoCs

backdoor

resource	yara_rule
behavioral1/memory/1344-2-0x0000000004000000-0x0000000004254000-memory.dmp	family_expiro1

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_79922431358ffdf7bd11f917b1a61f20.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_79922431358ffdf7bd11f917b1a61f20.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_79922431358ffdf7bd11f917b1a61f20.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:1344

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1344-0-0x0000000004000000-0x0000000004254000-memory.dmp

Filesize
2.3MB

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memory/1344-2-0x0000000004000000-0x0000000004254000-memory.dmp

Filesize
2.3MB

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memory/1344-1-0x0000000004003000-0x0000000004004000-memory.dmp

Filesize
4KB

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