expiro | baf5cc82467581211e49787174cfa5eb4c88db90b94a221b8a2647f830fcd6e2

Analysis

max time kernel
95s
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 14:28

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General

Target

JaffaCakes118_ca89a4a95e02c983d0dea4f436b1b6cb.exe
Size

415KB
MD5

ca89a4a95e02c983d0dea4f436b1b6cb
SHA1

4c470783ac069be6c346de512d6cf5d41032e1c1
SHA256

baf5cc82467581211e49787174cfa5eb4c88db90b94a221b8a2647f830fcd6e2
SHA512

ca49e0cc427d0543ad766ababc63f76fdf0ac174f1343f3c37377c4c4f17f5cc41763794d0feda51e1b3b87cc89a62a422e1821df79372cc5f152bea7fcc7a33
SSDEEP

12288:Hr8yKsihyU4otoUr05sbR4XQuwRfzE6UgfcA:Hr8yKsioU42nhbqQuwLfD

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 4 IoCs

backdoor

resource	yara_rule
behavioral2/memory/4932-0-0x00000000000CB000-0x000000000015E000-memory.dmp	family_expiro1
behavioral2/memory/4932-1-0x0000000000060000-0x000000000015E000-memory.dmp	family_expiro1
behavioral2/memory/4932-3-0x00000000000CB000-0x000000000015E000-memory.dmp	family_expiro1
behavioral2/memory/4932-2-0x0000000000060000-0x000000000015E000-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_ca89a4a95e02c983d0dea4f436b1b6cb.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ca89a4a95e02c983d0dea4f436b1b6cb.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ca89a4a95e02c983d0dea4f436b1b6cb.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:4932

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/4932-0-0x00000000000CB000-0x000000000015E000-memory.dmp

Filesize
588KB

Download
memory/4932-1-0x0000000000060000-0x000000000015E000-memory.dmp

Filesize
1016KB

Download
memory/4932-3-0x00000000000CB000-0x000000000015E000-memory.dmp

Filesize
588KB

Download
memory/4932-2-0x0000000000060000-0x000000000015E000-memory.dmp

Filesize
1016KB

Download