expiro | bd6364595c47ba974e31f6eda78bf7a7384f92f64e645548b3d42f2eb3c21e9c

Analysis

max time kernel
94s
max time network
146s
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, 01:02

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General

Target

JaffaCakes118_448f5e199faafd800655ccc1e096ffa9.exe
Size

415KB
MD5

448f5e199faafd800655ccc1e096ffa9
SHA1

87bafac9df74ad3cebb50e1dc1214060ae0e1eca
SHA256

bd6364595c47ba974e31f6eda78bf7a7384f92f64e645548b3d42f2eb3c21e9c
SHA512

8645109afa17add1a1813c0b303018abe78bea8327768621658a3b7a141557421afe5ea32cf5197573e66435f790a14d8bcc6a776b95ebf434b6d79e57b77931
SSDEEP

12288:/rsyKsi6Ye+0GjbZxWhMF77904n8FTyHOXxaAjY:/rsyKsi6J+BbZA07y4ATy/AM

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/3996-0-0x0000000000B9B000-0x0000000000C2E000-memory.dmp	family_expiro1
behavioral2/memory/3996-1-0x0000000000B9B000-0x0000000000C2E000-memory.dmp	family_expiro1
behavioral2/memory/3996-2-0x0000000000B30000-0x0000000000C2E000-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_448f5e199faafd800655ccc1e096ffa9.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_448f5e199faafd800655ccc1e096ffa9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_448f5e199faafd800655ccc1e096ffa9.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:3996

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/3996-0-0x0000000000B9B000-0x0000000000C2E000-memory.dmp

Filesize
588KB

Download
memory/3996-1-0x0000000000B9B000-0x0000000000C2E000-memory.dmp

Filesize
588KB

Download
memory/3996-2-0x0000000000B30000-0x0000000000C2E000-memory.dmp

Filesize
1016KB

Download
memory/3996-3-0x0000000000B30000-0x0000000000C2E000-memory.dmp

Filesize
1016KB

Download