expiro | f4c6658dc9fd2f73226710828a20aa51c4027dd2ce7d15cfbbfe17904a181be9

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09-01-2025 14:48

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_cae99c603706e5bd00247c2fc962a18c.exe
Size

415KB
MD5

cae99c603706e5bd00247c2fc962a18c
SHA1

c183c27e3db1234da137d84ac246264b1e8f1542
SHA256

f4c6658dc9fd2f73226710828a20aa51c4027dd2ce7d15cfbbfe17904a181be9
SHA512

6983aa6d71575bdf94b959534b329772f25d86514c75f4413afcbde9a1a737566642e7612ec519ceb706dec82f3534dfd6d8395657e3f70fe9f76b9a9bab551c
SSDEEP

12288:XrkyKsiiqBU5NguybKeSMC4RlVIPoD6fy9IhWpRK4fak12i:XrkyKsiihybKeSMxIPoD6a2hcR9fakIi

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 3 IoCs

backdoor

resource	yara_rule
behavioral2/memory/4676-0-0x000000000010B000-0x000000000019E000-memory.dmp	family_expiro1
behavioral2/memory/4676-1-0x000000000010B000-0x000000000019E000-memory.dmp	family_expiro1
behavioral2/memory/4676-2-0x00000000000A0000-0x000000000019E000-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_cae99c603706e5bd00247c2fc962a18c.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cae99c603706e5bd00247c2fc962a18c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cae99c603706e5bd00247c2fc962a18c.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:4676

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

Loading Replay Monitor...

Downloads

memory/4676-0-0x000000000010B000-0x000000000019E000-memory.dmp

Filesize
588KB

Download
memory/4676-1-0x000000000010B000-0x000000000019E000-memory.dmp

Filesize
588KB

Download
memory/4676-2-0x00000000000A0000-0x000000000019E000-memory.dmp

Filesize
1016KB

Download
memory/4676-3-0x00000000000A0000-0x000000000019E000-memory.dmp

Filesize
1016KB

Download