expiro | 96bf9018182f9b6df31ff19d686510b622213dc90fb5c45f221dfa7f0d3cfb77

Analysis

max time kernel
118s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01-01-2025 12:42

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General

Target

JaffaCakes118_5598432d4bceae719c75c2fcd1fd410d.exe
Size

457KB
MD5

5598432d4bceae719c75c2fcd1fd410d
SHA1

7d22ec93b64c1cf0a6e0b1c8dbdec48e5d1e661c
SHA256

96bf9018182f9b6df31ff19d686510b622213dc90fb5c45f221dfa7f0d3cfb77
SHA512

d4a7235b065b06373624db354a019265895e3c7e6c6e13da6cc3e19f02a770b27f7d1d99cd22cc7548b69be0302ce291058ab95f6c6786e7071e0da6c25af77b
SSDEEP

12288:qNmfzk9DwdR2mtIwbw1c8vRoPawl3obgpKbaLw:0mfwlwd/iwE1eCw3obi

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
behavioral1/memory/2072-0-0x0000000010074000-0x0000000010108000-memory.dmp	family_expiro1
behavioral1/memory/2072-1-0x0000000010000000-0x0000000010108000-memory.dmp	family_expiro1
behavioral1/memory/2072-2-0x0000000010074000-0x0000000010108000-memory.dmp	family_expiro1
behavioral1/memory/2072-3-0x0000000010000000-0x0000000010108000-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_5598432d4bceae719c75c2fcd1fd410d.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5598432d4bceae719c75c2fcd1fd410d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5598432d4bceae719c75c2fcd1fd410d.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2072

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/2072-0-0x0000000010074000-0x0000000010108000-memory.dmp

Filesize
592KB

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memory/2072-1-0x0000000010000000-0x0000000010108000-memory.dmp

Filesize
1.0MB

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memory/2072-2-0x0000000010074000-0x0000000010108000-memory.dmp

Filesize
592KB

Download
memory/2072-3-0x0000000010000000-0x0000000010108000-memory.dmp

Filesize
1.0MB

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