expiro | 8454272896648899194b4c898f40de35f42f915220410bef902a8e7a26d66e47

Analysis

max time kernel
121s
max time network
130s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-02-2025 14:17

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General

Target

JaffaCakes118_1a304f4b0e7f272133b7ddda62173bb8.exe
Size

181KB
MD5

1a304f4b0e7f272133b7ddda62173bb8
SHA1

1a520e1d62b10473bbef2f3e619f06f6625ec2fa
SHA256

8454272896648899194b4c898f40de35f42f915220410bef902a8e7a26d66e47
SHA512

0221a4d840856d568b8f32177b27e9144c92f7a07166a2272bb3b6ebcd56aebdaeda7bceb780bcb68b8a7dd6f0c00e79107fd87ad81b068cd9659d131b05ac7a
SSDEEP

3072:o/8kkZycJU22DHyaLGKD7aQE+Kk1ThfYygs0yq/8h4j3OH1m4219ZQxyg5BhgDLy:Ec62cHzGqFKk1T/ghyl4uHuBS

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
behavioral1/memory/1780-2-0x0000000001000000-0x000000000107A000-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_1a304f4b0e7f272133b7ddda62173bb8.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1a304f4b0e7f272133b7ddda62173bb8.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1a304f4b0e7f272133b7ddda62173bb8.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:1780

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/1780-0-0x0000000001000000-0x000000000107A000-memory.dmp

Filesize
488KB

Download
memory/1780-1-0x0000000001001000-0x0000000001002000-memory.dmp

Filesize
4KB

Download
memory/1780-2-0x0000000001000000-0x000000000107A000-memory.dmp

Filesize
488KB

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