expiro | 9488e47791c012cc7529181646c4faea23f13b30eba03c69d555163840a5be08

Analysis

max time kernel
93s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05-01-2025 01:49

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General

Target

JaffaCakes118_83b443953451af51cc706610275c11f7.exe
Size

457KB
MD5

83b443953451af51cc706610275c11f7
SHA1

975775832644130389bea7e0e832b8b7652aecb4
SHA256

9488e47791c012cc7529181646c4faea23f13b30eba03c69d555163840a5be08
SHA512

aff9fc8adcdc47d6e142f5b969721d7c3edab63ad3c4c55b44729ca833ea52399da997a951d594c5da905bee88ea94d517969e82cfb42e526259c9b969a15fee
SSDEEP

6144:oZmEOK99kX0ZmaigdgCZuAyk/tAju2g8tDgyyufTDsN58+7afAwx/hTLt:oo0Zmfxk/tA5DrTqxaNxpT

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/656-0-0x0000000010074000-0x0000000010108000-memory.dmp	family_expiro1
behavioral2/memory/656-1-0x0000000010000000-0x0000000010108000-memory.dmp	family_expiro1
behavioral2/memory/656-2-0x0000000010074000-0x0000000010108000-memory.dmp	family_expiro1
behavioral2/memory/656-3-0x0000000010000000-0x0000000010108000-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_83b443953451af51cc706610275c11f7.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_83b443953451af51cc706610275c11f7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_83b443953451af51cc706610275c11f7.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:656

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/656-0-0x0000000010074000-0x0000000010108000-memory.dmp

Filesize
592KB

Download
memory/656-1-0x0000000010000000-0x0000000010108000-memory.dmp

Filesize
1.0MB

Download
memory/656-2-0x0000000010074000-0x0000000010108000-memory.dmp

Filesize
592KB

Download
memory/656-3-0x0000000010000000-0x0000000010108000-memory.dmp

Filesize
1.0MB

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