expiro | 609055c9b7257aeb37717468a21d43cf2bd18f642bc548d2a4c99fd2d9e238d3

Analysis

max time kernel
121s
max time network
126s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
04-01-2025 09:15

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General

Target

JaffaCakes118_78de12fdfb0f6b659d13fb49cdb074b0.exe
Size

560KB
MD5

78de12fdfb0f6b659d13fb49cdb074b0
SHA1

8a29e0cd147979dcea7cb23e0fface2cc0851cd3
SHA256

609055c9b7257aeb37717468a21d43cf2bd18f642bc548d2a4c99fd2d9e238d3
SHA512

4f35bc0b085f18c497b8864832042db71174426f121b1787e929b5ff700f3c83a14fa3f3d44e3b29564aa612bcdb19942f3461fd450ec808e0af75d6631427aa
SSDEEP

12288:AjycEQJwbIA25yKlGdfMA0EGhbY32Lelh+I32xAlxADlcQ/o:Ajy2Jw525RGdfMA0EGpY3QelUI32xAlT

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/2904-2-0x0000000001000000-0x000000000124B000-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_78de12fdfb0f6b659d13fb49cdb074b0.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_78de12fdfb0f6b659d13fb49cdb074b0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_78de12fdfb0f6b659d13fb49cdb074b0.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2904

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/2904-0-0x0000000001000000-0x000000000124B000-memory.dmp

Filesize
2.3MB

Download
memory/2904-1-0x0000000001001000-0x0000000001002000-memory.dmp

Filesize
4KB

Download
memory/2904-2-0x0000000001000000-0x000000000124B000-memory.dmp

Filesize
2.3MB

Download