expiro | 28cdf36b43f3c0d1c72e22ce6f78ce8a67e173a34d2b024384220baf493a09cd

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
03-01-2025 16:38

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General

Target

JaffaCakes118_6df9bce0161288f8bb8f56ef3e84a62c.exe
Size

540KB
MD5

6df9bce0161288f8bb8f56ef3e84a62c
SHA1

6b60e4fa2c9d20f1b221967e879848be82e0f479
SHA256

28cdf36b43f3c0d1c72e22ce6f78ce8a67e173a34d2b024384220baf493a09cd
SHA512

8403ab8685298f4d95ee8f2dc841f6c33431319c62b8e21cf1e9567b16683da546c748aca795eee7f6de34c0b15b8bbd0f51f23a54b694fe0001d8c279c7e644
SSDEEP

6144:QWWcGK4EDyGaLquWpVAJvRmiaPd+avl+LwedsAxWfOa4u3eM+dZB4ERWULmv7sAO:QWvy2gq7cFDweWA8WRDdZB4ERtivlpF

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 1 IoCs

backdoor

resource	yara_rule
behavioral2/memory/4420-2-0x0000000000400000-0x00000000004D3000-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_6df9bce0161288f8bb8f56ef3e84a62c.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6df9bce0161288f8bb8f56ef3e84a62c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6df9bce0161288f8bb8f56ef3e84a62c.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:4420

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/4420-0-0x0000000000400000-0x00000000004D3000-memory.dmp

Filesize
844KB

Download
memory/4420-1-0x0000000000422000-0x0000000000423000-memory.dmp

Filesize
4KB

Download
memory/4420-2-0x0000000000400000-0x00000000004D3000-memory.dmp

Filesize
844KB

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