expiro | 13b7e4af083dac0dd5e560199e327b4fa39e19d34fda83eeb2ffebea19514c98

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
06-01-2025 16:57

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General

Target

JaffaCakes118_2f6a27aa477af6787587220ef2915e71.exe
Size

415KB
MD5

2f6a27aa477af6787587220ef2915e71
SHA1

a7af989d273c8d977df225fbc739388c2400cd8e
SHA256

13b7e4af083dac0dd5e560199e327b4fa39e19d34fda83eeb2ffebea19514c98
SHA512

0347be7866c9375f40c388a72e0d6a3e349627e805b3d8d45549fd7e99e0050a51c3040edaeb20c77c31fde0032fa49b3afc85dc31197561dbcbfed89aaff187
SSDEEP

12288:br8yKsi7BcZfdHh7FMC6OA4lcKTHlJKoCSzgN:br8yKsi7BsfdHhutOxTHlJKxz

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/1692-0-0x0000000000F3B000-0x0000000000FCE000-memory.dmp	family_expiro1
behavioral2/memory/1692-1-0x0000000000ED0000-0x0000000000FCE000-memory.dmp	family_expiro1
behavioral2/memory/1692-3-0x0000000000F3B000-0x0000000000FCE000-memory.dmp	family_expiro1
behavioral2/memory/1692-2-0x0000000000ED0000-0x0000000000FCE000-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_2f6a27aa477af6787587220ef2915e71.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2f6a27aa477af6787587220ef2915e71.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2f6a27aa477af6787587220ef2915e71.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:1692

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/1692-0-0x0000000000F3B000-0x0000000000FCE000-memory.dmp

Filesize
588KB

Download
memory/1692-1-0x0000000000ED0000-0x0000000000FCE000-memory.dmp

Filesize
1016KB

Download
memory/1692-3-0x0000000000F3B000-0x0000000000FCE000-memory.dmp

Filesize
588KB

Download
memory/1692-2-0x0000000000ED0000-0x0000000000FCE000-memory.dmp

Filesize
1016KB

Download