expiro | 84a94f133ca3c45027f952e5580699cb31dbba91e49f05ae3f36bcb0100de73b

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02/01/2025, 10:02

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General

Target

JaffaCakes118_64493d469fb9951ce19422c97774e199.exe
Size

780KB
MD5

64493d469fb9951ce19422c97774e199
SHA1

984d84d8f66004431283e13b6bd8cd459887e509
SHA256

84a94f133ca3c45027f952e5580699cb31dbba91e49f05ae3f36bcb0100de73b
SHA512

496b3e91208b4b2ab6c89d0095dc86d05afc1e6af077bfbbbf382232be738d44a8cab40de44a1edc400aacdb042e3f15ce92129678630a33dddbbbfa074d730c
SSDEEP

12288:jYw0HtXO3L236JpclJZji21wrU3UtEOk2asHBTttBRS8aQH8v8sVeZ:jeO3L23tW3UU4S7BE86e

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/2848-2-0x0000000000400000-0x00000000005F0000-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_64493d469fb9951ce19422c97774e199.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2848	JaffaCakes118_64493d469fb9951ce19422c97774e199.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_64493d469fb9951ce19422c97774e199.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_64493d469fb9951ce19422c97774e199.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:2848

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/2848-0-0x0000000000400000-0x00000000005F0000-memory.dmp

Filesize
1.9MB

Download
memory/2848-1-0x0000000000411000-0x0000000000412000-memory.dmp

Filesize
4KB

Download
memory/2848-2-0x0000000000400000-0x00000000005F0000-memory.dmp

Filesize
1.9MB

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