expiro | 155ba2df7e1adf083b03fa72dab3bb9dba7c952524d34f5b5f118eab66b676f4

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
23-02-2025 03:59

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General

Target

JaffaCakes118_1e5821d7224e4b03e70ab75a6fed47b2.exe
Size

181KB
MD5

1e5821d7224e4b03e70ab75a6fed47b2
SHA1

05e5b92c570f74c33c3d5946de42bc4bf217a616
SHA256

155ba2df7e1adf083b03fa72dab3bb9dba7c952524d34f5b5f118eab66b676f4
SHA512

cd3db5d76697ec11d59970fc5a69b37c830aed597ee8556316453ff13cf351655701a7eabd43b840fbb6004aca46ed5d69b886dba79e9ed1380804ad7243f745
SSDEEP

3072:8/8kE0zRKjl1PewbrnBt/rCVHOg9nEx8RW/4CScR45J36nXcLULAG67aXq:4+0VKp1PeSrP/uVTntvq45J36nXcQm

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/1544-2-0x0000000001000000-0x000000000107A000-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_1e5821d7224e4b03e70ab75a6fed47b2.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1e5821d7224e4b03e70ab75a6fed47b2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1e5821d7224e4b03e70ab75a6fed47b2.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:1544

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/1544-0-0x0000000001000000-0x000000000107A000-memory.dmp

Filesize
488KB

Download
memory/1544-1-0x0000000001001000-0x0000000001002000-memory.dmp

Filesize
4KB

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memory/1544-2-0x0000000001000000-0x000000000107A000-memory.dmp

Filesize
488KB

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