expiro | 5f397027a26ce5f9f3a3d04e31a28967f423edfa95a822567dc0ad5c59c8c190

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
04-01-2025 13:01

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General

Target

JaffaCakes118_79d23e3fdf0680c39198b3b4b47a135c.exe
Size

592KB
MD5

79d23e3fdf0680c39198b3b4b47a135c
SHA1

33eaea4782192f7844f4dc1e00e988636d5ab2da
SHA256

5f397027a26ce5f9f3a3d04e31a28967f423edfa95a822567dc0ad5c59c8c190
SHA512

04560f8da229bd7abc5c527dea794f74079876302876aa50d57f114142465381802b5000ecc657e3c4b4c3451ab7addf0449376d4064e219cebcc1b5318a8f40
SSDEEP

12288:gijc74tK/X6yYZa/9HWus9ohny7rvzpSqbu1iyyu95N3k6MEIcoS:2eZMs+c7rvNPiisGzT

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/2324-2-0x0000000001000000-0x0000000001253000-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_79d23e3fdf0680c39198b3b4b47a135c.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_79d23e3fdf0680c39198b3b4b47a135c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_79d23e3fdf0680c39198b3b4b47a135c.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2324

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/2324-0-0x0000000001000000-0x0000000001253000-memory.dmp

Filesize
2.3MB

Download
memory/2324-1-0x0000000001003000-0x0000000001004000-memory.dmp

Filesize
4KB

Download
memory/2324-2-0x0000000001000000-0x0000000001253000-memory.dmp

Filesize
2.3MB

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