expiro | c1c82663a31c0b98db24377e69564921de9e30a71300e64660044d2462227ac2

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
03-01-2025 18:17

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General

Target

JaffaCakes118_6e8e6ff568c7db969b71a4879b13ab69.exe
Size

655KB
MD5

6e8e6ff568c7db969b71a4879b13ab69
SHA1

b8d5ab53b4a3c0b0eb823ae37367c9c9c64536ff
SHA256

c1c82663a31c0b98db24377e69564921de9e30a71300e64660044d2462227ac2
SHA512

431efb055cca5868e205f674c7a458d049848e3f0d092886d97a3dc237008a8206af147ac80c127b763a580943ded51953266222f08ad3c98fd7c4370bf4ff23
SSDEEP

12288:X0fH6MiT8bRKmBqDeusveaABhyrY3X1lSkQ+rWX+aQXhuffVId//I6vyIBUAdRAP:EP6MNbRKAdezBhyCPSkw6v3BUU

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 2 IoCs

backdoor

resource	yara_rule
behavioral1/memory/2712-0-0x0000000000400000-0x00000000005D8000-memory.dmp	family_expiro1
behavioral1/memory/2712-2-0x0000000000400000-0x00000000005D8000-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_6e8e6ff568c7db969b71a4879b13ab69.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6e8e6ff568c7db969b71a4879b13ab69.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6e8e6ff568c7db969b71a4879b13ab69.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2712

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/2712-0-0x0000000000400000-0x00000000005D8000-memory.dmp

Filesize
1.8MB

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memory/2712-1-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

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memory/2712-2-0x0000000000400000-0x00000000005D8000-memory.dmp

Filesize
1.8MB

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