expiro | b2740b5a7fcd9ab2d4504affb18c53a0876d678983fe29a4bb61ad50746f2d15

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07-01-2025 13:36

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General

Target

JaffaCakes118_65f3b55327f5f7c9547990f7ea79d51f.exe
Size

415KB
MD5

65f3b55327f5f7c9547990f7ea79d51f
SHA1

094883b32312a4a6a7353c334b37ca99ca7958e4
SHA256

b2740b5a7fcd9ab2d4504affb18c53a0876d678983fe29a4bb61ad50746f2d15
SHA512

dd72205921c2eb40383703932b04900611ee4e95cc0d8d8117a6a13d23734e5a629734e75f11b2e51e17164aa39633e024714f4c0ec09de0a9fcea4d7d20bc72
SSDEEP

12288:ZrLyKsiGF7mBPINNvNSbBZMkAzjLLZWIGC4pB15:ZrLyKsig7m+NvNSErzDYIG7zn

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 3 IoCs

backdoor

resource	yara_rule
behavioral2/memory/4304-0-0x000000000075B000-0x00000000007EE000-memory.dmp	family_expiro1
behavioral2/memory/4304-1-0x000000000075B000-0x00000000007EE000-memory.dmp	family_expiro1
behavioral2/memory/4304-2-0x00000000006F0000-0x00000000007EE000-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_65f3b55327f5f7c9547990f7ea79d51f.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_65f3b55327f5f7c9547990f7ea79d51f.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_65f3b55327f5f7c9547990f7ea79d51f.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:4304

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/4304-0-0x000000000075B000-0x00000000007EE000-memory.dmp

Filesize
588KB

Download
memory/4304-1-0x000000000075B000-0x00000000007EE000-memory.dmp

Filesize
588KB

Download
memory/4304-2-0x00000000006F0000-0x00000000007EE000-memory.dmp

Filesize
1016KB

Download
memory/4304-3-0x00000000006F0000-0x00000000007EE000-memory.dmp

Filesize
1016KB

Download