expiro | 9bf826bbb4f89952b2c9da4452d171954d49b766931a435b7b2e8a12eda9a9cf

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-01-2025 21:28

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General

Target

JaffaCakes118_7bd7057991bddad5ed9553253bd752d2.exe
Size

505KB
MD5

7bd7057991bddad5ed9553253bd752d2
SHA1

77f5f9cf6465f421167e2d5dd40f5893f2e2ce01
SHA256

9bf826bbb4f89952b2c9da4452d171954d49b766931a435b7b2e8a12eda9a9cf
SHA512

27134023416949200e35f05a8b607ca1825fe6b7ea611e45844264f0e1b37e51a9572ecf1dcc6247926fb4a23e259f32840ae97ef9c993d278a66c6705b02599
SSDEEP

12288:Kl1yAJjoDPSyGo+/seDuVMEhfEaSs8MFZ3l7piy5K9WY+x:+1/JjoDayG4NhCo3Xiy09Wx

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
behavioral1/memory/2364-2-0x0000000001000000-0x00000000011AA000-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_7bd7057991bddad5ed9553253bd752d2.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7bd7057991bddad5ed9553253bd752d2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7bd7057991bddad5ed9553253bd752d2.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2364

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/2364-0-0x0000000001000000-0x00000000011AA000-memory.dmp

Filesize
1.7MB

Download
memory/2364-1-0x0000000001001000-0x0000000001002000-memory.dmp

Filesize
4KB

Download
memory/2364-2-0x0000000001000000-0x00000000011AA000-memory.dmp

Filesize
1.7MB

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