expiro | eadc65a4f564d63277be42e7c4f9f7291cb28a8e123272cdc707753761b87057

Analysis

max time kernel
136s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
06-01-2025 19:52

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General

Target

JaffaCakes118_375631302351465011252673a4a62b12.exe
Size

457KB
MD5

375631302351465011252673a4a62b12
SHA1

8fed14e0f61310e6f58cfb59369c25a0abfee27f
SHA256

eadc65a4f564d63277be42e7c4f9f7291cb28a8e123272cdc707753761b87057
SHA512

7486fb2313a774331c48dc28bb1b083c35a118802c370438bf88846e3ebcacabb84c13034c8cf97cc208fa0a98d037f530610244ccbb1d2375f01bfec64933dc
SSDEEP

6144:uZ5EOK99kX0KlP07KQFAOgpulEvjLayMNJXBur4DasL6OW6LRTar2WMp/:u/0KG/AORmrd0VDasL616VTarzQ

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/764-0-0x0000000010074000-0x0000000010108000-memory.dmp	family_expiro1
behavioral2/memory/764-1-0x0000000010000000-0x0000000010108000-memory.dmp	family_expiro1
behavioral2/memory/764-2-0x0000000010074000-0x0000000010108000-memory.dmp	family_expiro1
behavioral2/memory/764-3-0x0000000010000000-0x0000000010108000-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_375631302351465011252673a4a62b12.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_375631302351465011252673a4a62b12.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_375631302351465011252673a4a62b12.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:764

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/764-0-0x0000000010074000-0x0000000010108000-memory.dmp

Filesize
592KB

Download
memory/764-1-0x0000000010000000-0x0000000010108000-memory.dmp

Filesize
1.0MB

Download
memory/764-2-0x0000000010074000-0x0000000010108000-memory.dmp

Filesize
592KB

Download
memory/764-3-0x0000000010000000-0x0000000010108000-memory.dmp

Filesize
1.0MB

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