expiro | 7ee11f85e1380cc197c7f86485756207e10e5aaa59f9646dae981641113ff2a5

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-01-2025 11:38

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General

Target

JaffaCakes118_797c53ab8096a9a97d91bd8b4b25aea0.exe
Size

927KB
MD5

797c53ab8096a9a97d91bd8b4b25aea0
SHA1

36f56d955c6bcf22b4d6391b61af1c6754b3d29a
SHA256

7ee11f85e1380cc197c7f86485756207e10e5aaa59f9646dae981641113ff2a5
SHA512

ea1a7512e42361aa6d08b8107e15a3419e0de4c8fdb8f96f2473dc3279f46ef010fa46fc8910d57a4e3b214b0f7da0e3bbb6241bcf0181978a722d63c5bc05f8
SSDEEP

24576:RjkqcetqSd1ELP34MYTNvyvzEYoo+iiNuZXL:xkqjtqSDELPYsbH

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/2092-3-0x0000000000400000-0x00000000006B6000-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_797c53ab8096a9a97d91bd8b4b25aea0.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2092	JaffaCakes118_797c53ab8096a9a97d91bd8b4b25aea0.exe
2092	JaffaCakes118_797c53ab8096a9a97d91bd8b4b25aea0.exe
2092	JaffaCakes118_797c53ab8096a9a97d91bd8b4b25aea0.exe
2092	JaffaCakes118_797c53ab8096a9a97d91bd8b4b25aea0.exe
2092	JaffaCakes118_797c53ab8096a9a97d91bd8b4b25aea0.exe
2092	JaffaCakes118_797c53ab8096a9a97d91bd8b4b25aea0.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_797c53ab8096a9a97d91bd8b4b25aea0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_797c53ab8096a9a97d91bd8b4b25aea0.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2092

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/2092-0-0x0000000000400000-0x00000000006B6000-memory.dmp

Filesize
2.7MB

Download
memory/2092-1-0x0000000000414000-0x0000000000415000-memory.dmp

Filesize
4KB

Download
memory/2092-3-0x0000000000400000-0x00000000006B6000-memory.dmp

Filesize
2.7MB

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