expiro | e12161ec8b6b0230750774df1d3341df61801fce636cb3959759aa7e2f80606e

Analysis

max time kernel
92s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-01-2025 12:20

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General

Target

JaffaCakes118_79a6017bc97c4f6d71d9744d2ca9a8f2.exe
Size

686KB
MD5

79a6017bc97c4f6d71d9744d2ca9a8f2
SHA1

774d256ba9cbc02989461be8ff1a0aef81b963bb
SHA256

e12161ec8b6b0230750774df1d3341df61801fce636cb3959759aa7e2f80606e
SHA512

c63c7b02c70ea4359d5f475571c8975abc37eb0a2106613fb9a89f5432a643a4de6b9125a327c40baaf55263ec519ba61dd0ab08c93e68c099d7a4aee5ed3f7b
SSDEEP

12288:7uJ67K3upEAjYbKrSMXwgbaZyEheqiZUQ7SDQtf3HoVOm+rpn:NSVCYQSCweaZx0q8UQ7SDQtf3IVL+r1

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 1 IoCs

backdoor

resource	yara_rule
behavioral2/memory/3148-2-0x0000000000400000-0x00000000005D2000-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_79a6017bc97c4f6d71d9744d2ca9a8f2.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_79a6017bc97c4f6d71d9744d2ca9a8f2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_79a6017bc97c4f6d71d9744d2ca9a8f2.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:3148

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/3148-0-0x0000000000400000-0x00000000005D2000-memory.dmp

Filesize
1.8MB

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memory/3148-2-0x0000000000400000-0x00000000005D2000-memory.dmp

Filesize
1.8MB

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memory/3148-1-0x0000000000405000-0x0000000000406000-memory.dmp

Filesize
4KB

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