expiro | 197d028c2303284bf0b1720883a30524b7ba69674bd0d799a94518f34a5e05a5

Analysis

max time kernel
93s
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
09-01-2025 18:16

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General

Target

JaffaCakes118_ced87a29da3949d76925a0d9acb817a2.exe
Size

415KB
MD5

ced87a29da3949d76925a0d9acb817a2
SHA1

fb9aa54c4a16f3ddf4f12893c6a0c35c5c425e77
SHA256

197d028c2303284bf0b1720883a30524b7ba69674bd0d799a94518f34a5e05a5
SHA512

6668d5a0260afea5deaa95980e3dc323021838b9f577e528c3c43ef5f969ebe691c00f536ad36a9700510145ce5c429d773f35c758460d0c30cbab671945097b
SSDEEP

12288:GrfyKsinI2VSojTs/eAsdFTvbNjjSXN2mEmFioL1rny:GrfyKsiPNjf3d5RjjCs02

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/3476-0-0x00000000007DB000-0x000000000086E000-memory.dmp	family_expiro1
behavioral2/memory/3476-1-0x00000000007DB000-0x000000000086E000-memory.dmp	family_expiro1
behavioral2/memory/3476-2-0x0000000000770000-0x000000000086E000-memory.dmp	family_expiro1
behavioral2/memory/3476-3-0x0000000000770000-0x000000000086E000-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_ced87a29da3949d76925a0d9acb817a2.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ced87a29da3949d76925a0d9acb817a2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ced87a29da3949d76925a0d9acb817a2.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:3476

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/3476-0-0x00000000007DB000-0x000000000086E000-memory.dmp

Filesize
588KB

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memory/3476-1-0x00000000007DB000-0x000000000086E000-memory.dmp

Filesize
588KB

Download
memory/3476-2-0x0000000000770000-0x000000000086E000-memory.dmp

Filesize
1016KB

Download
memory/3476-3-0x0000000000770000-0x000000000086E000-memory.dmp

Filesize
1016KB

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