expiro | f97ae781d72f60c4d44646027f575320eefced2bf4da6cb436339782bf7bef51

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
03-01-2025 20:50

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General

Target

JaffaCakes118_6f890bc4ec1c52e59bcf325f4caf9897.exe
Size

567KB
MD5

6f890bc4ec1c52e59bcf325f4caf9897
SHA1

a18349efa2c6ef28bc9f17f51a46b45b6b71c935
SHA256

f97ae781d72f60c4d44646027f575320eefced2bf4da6cb436339782bf7bef51
SHA512

526cd412a162ea2b5d1e80879e23e87c58f5ba2019efa36a6d0bd1f2c596d7e6a48276db1dd9f851aca46d026533372798023fd0f3b3055199ff57a7044bd700
SSDEEP

12288:qSSfkj36QHW91YlgWJ8puNYHU2v5AInoum3xLA:qSqM36Q2LqzJ9NOv5AooZxc

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/2772-2-0x0000000000400000-0x00000000005A9000-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_6f890bc4ec1c52e59bcf325f4caf9897.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6f890bc4ec1c52e59bcf325f4caf9897.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6f890bc4ec1c52e59bcf325f4caf9897.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2772

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/2772-0-0x0000000000400000-0x00000000005A9000-memory.dmp

Filesize
1.7MB

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memory/2772-1-0x000000000040C000-0x000000000040D000-memory.dmp

Filesize
4KB

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memory/2772-2-0x0000000000400000-0x00000000005A9000-memory.dmp

Filesize
1.7MB

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