expiro | c9e197b92db074af25e960c38ba4ce45962db1ef8f15ed6a506fc8df73faa97d

Analysis

max time kernel
94s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05-01-2025 09:38

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General

Target

JaffaCakes118_9b3456f19f326ae1a7f2b924052e54a3.exe
Size

415KB
MD5

9b3456f19f326ae1a7f2b924052e54a3
SHA1

979cf648ecf9cfdf111fc40623d406424db87909
SHA256

c9e197b92db074af25e960c38ba4ce45962db1ef8f15ed6a506fc8df73faa97d
SHA512

41f0f7f0006ddbf630b7ebf33008917532ef70e9c3ca41caed5e278be5e28432e950c81777c94bc479b8aa29e6badc02f1c47e0eb6d3a449e3677530de155b93
SSDEEP

12288:erfyKsite6OsrbN18dvknp8WYe4YTjU/OP03cdiJ:erfyKsiteXsrZaY8m/4WP0Q

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/1600-0-0x00000000004EB000-0x000000000057E000-memory.dmp	family_expiro1
behavioral2/memory/1600-3-0x0000000000480000-0x000000000057E000-memory.dmp	family_expiro1
behavioral2/memory/1600-2-0x00000000004EB000-0x000000000057E000-memory.dmp	family_expiro1
behavioral2/memory/1600-1-0x0000000000480000-0x000000000057E000-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_9b3456f19f326ae1a7f2b924052e54a3.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9b3456f19f326ae1a7f2b924052e54a3.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9b3456f19f326ae1a7f2b924052e54a3.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:1600

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

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Downloads

memory/1600-0-0x00000000004EB000-0x000000000057E000-memory.dmp

Filesize
588KB

Download
memory/1600-3-0x0000000000480000-0x000000000057E000-memory.dmp

Filesize
1016KB

Download
memory/1600-2-0x00000000004EB000-0x000000000057E000-memory.dmp

Filesize
588KB

Download
memory/1600-1-0x0000000000480000-0x000000000057E000-memory.dmp

Filesize
1016KB

Download