expiro | ccf0b0fb4fe0f007021ca5465db68e73aab5dca16d6484934ad7f9a7cd318547

Analysis

max time kernel
94s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-01-2025 02:57

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General

Target

JaffaCakes118_f51ff3edaa0a64d9e947f1eabfabc343.exe
Size

457KB
MD5

f51ff3edaa0a64d9e947f1eabfabc343
SHA1

b9062b49a758e266fedc02dbf0db57d6b787d6cf
SHA256

ccf0b0fb4fe0f007021ca5465db68e73aab5dca16d6484934ad7f9a7cd318547
SHA512

89882843a75ed8395b7e1788aeba7546690b133c990585ea88f4cddbb36e34b84480336fcc1f36d30b8a1223c32818ed237adc57e058c81e6deee758958ce015
SSDEEP

12288:qXxema599UQVhq6iNAcBYKuJG+kiOYpJtUgLam:Oxema5c2hOjuYHCJtUg+

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/3796-0-0x0000000010074000-0x0000000010108000-memory.dmp	family_expiro1
behavioral2/memory/3796-1-0x0000000010000000-0x0000000010108000-memory.dmp	family_expiro1
behavioral2/memory/3796-2-0x0000000010074000-0x0000000010108000-memory.dmp	family_expiro1
behavioral2/memory/3796-3-0x0000000010000000-0x0000000010108000-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_f51ff3edaa0a64d9e947f1eabfabc343.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f51ff3edaa0a64d9e947f1eabfabc343.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f51ff3edaa0a64d9e947f1eabfabc343.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:3796

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/3796-0-0x0000000010074000-0x0000000010108000-memory.dmp

Filesize
592KB

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memory/3796-1-0x0000000010000000-0x0000000010108000-memory.dmp

Filesize
1.0MB

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memory/3796-2-0x0000000010074000-0x0000000010108000-memory.dmp

Filesize
592KB

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memory/3796-3-0x0000000010000000-0x0000000010108000-memory.dmp

Filesize
1.0MB

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