expiro | 81e33e3125fc8886e6d214369d273e5ae9b64ede9103d587eef80884f882b929

Analysis

max time kernel
92s
max time network
148s
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 00:07

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General

Target

JaffaCakes118_7e37bba13ad4ff7edc24c77195ff84a3.exe
Size

415KB
MD5

7e37bba13ad4ff7edc24c77195ff84a3
SHA1

563c27d82b127321a12c2710411e1a5a1f4e6cab
SHA256

81e33e3125fc8886e6d214369d273e5ae9b64ede9103d587eef80884f882b929
SHA512

b171bec06ee13a0e7da6887ea0f0a47bb9b901c799e41c15bd44ddc8b44505abc8058f715dd7db1221dfd2f5d696b4a2e3b2302c08487e9e0085278a34cb4da1
SSDEEP

12288:DrQyKsio1k0GQAbGLX8S9FTzhYHPDW0ba:DrQyKsioK0GLAXFCH7WP

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/868-0-0x0000000000AAB000-0x0000000000B3E000-memory.dmp	family_expiro1
behavioral2/memory/868-3-0x0000000000A40000-0x0000000000B3E000-memory.dmp	family_expiro1
behavioral2/memory/868-2-0x0000000000AAB000-0x0000000000B3E000-memory.dmp	family_expiro1
behavioral2/memory/868-1-0x0000000000A40000-0x0000000000B3E000-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_7e37bba13ad4ff7edc24c77195ff84a3.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7e37bba13ad4ff7edc24c77195ff84a3.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7e37bba13ad4ff7edc24c77195ff84a3.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:868

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/868-0-0x0000000000AAB000-0x0000000000B3E000-memory.dmp

Filesize
588KB

Download
memory/868-3-0x0000000000A40000-0x0000000000B3E000-memory.dmp

Filesize
1016KB

Download
memory/868-2-0x0000000000AAB000-0x0000000000B3E000-memory.dmp

Filesize
588KB

Download
memory/868-1-0x0000000000A40000-0x0000000000B3E000-memory.dmp

Filesize
1016KB

Download