expiro | d09fa37f59e58b8d36c706d1ded5210770728d6646e52f4cb50739d11238576c

Analysis

max time kernel
96s
max time network
149s
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, 17:59

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General

Target

JaffaCakes118_ce7a78da174aed14f89f5655e82fb621.exe
Size

457KB
MD5

ce7a78da174aed14f89f5655e82fb621
SHA1

7ea962d09c6f646b4d9bc90f9346810bae53f631
SHA256

d09fa37f59e58b8d36c706d1ded5210770728d6646e52f4cb50739d11238576c
SHA512

abe6e006355ca2a7a65af3b4ddad754ae7b90b2c44fac6591abc2352344548f19c9d2ef91cf944191d57b05712b310b7039ce26954e0d3c5a78b20fa3ca43059
SSDEEP

12288:n7cqxr0x9Qs8DdSy+L52hAsdFTvbNjjSXN2mEmFioL1rny:7wSSHV2h3d5RjjCs02

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/4900-0-0x0000000010074000-0x0000000010108000-memory.dmp	family_expiro1
behavioral2/memory/4900-1-0x0000000010000000-0x0000000010108000-memory.dmp	family_expiro1
behavioral2/memory/4900-2-0x0000000010074000-0x0000000010108000-memory.dmp	family_expiro1
behavioral2/memory/4900-3-0x0000000010000000-0x0000000010108000-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_ce7a78da174aed14f89f5655e82fb621.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ce7a78da174aed14f89f5655e82fb621.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ce7a78da174aed14f89f5655e82fb621.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:4900

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/4900-0-0x0000000010074000-0x0000000010108000-memory.dmp

Filesize
592KB

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memory/4900-1-0x0000000010000000-0x0000000010108000-memory.dmp

Filesize
1.0MB

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memory/4900-2-0x0000000010074000-0x0000000010108000-memory.dmp

Filesize
592KB

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memory/4900-3-0x0000000010000000-0x0000000010108000-memory.dmp

Filesize
1.0MB

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