expiro | fc2cab0d2f15cdcdf418e32662797af86286e19b7c373782d5df62bc00588240

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
04-01-2025 20:13

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General

Target

JaffaCakes118_7b8d7f8635141b98a214d774f6872269.exe
Size

557KB
MD5

7b8d7f8635141b98a214d774f6872269
SHA1

efd2a1aa051f2765afd7403ceab82355cc37eba8
SHA256

fc2cab0d2f15cdcdf418e32662797af86286e19b7c373782d5df62bc00588240
SHA512

9f772825d6751fab7094fd62fe55ab7e923b266ef9d39df6f3e0e9f48d3987fad663d91c4f36fd424fa1fe0ce84ad910c5561344ce4e2576103826cedd56ae96
SSDEEP

12288:hP6KeXgNCzHXBxVNdjV3PtmIQ7c5jX0IysUZ0ewnLHemlH:hizXKCzHXBX3fmIE8O0J

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/2644-2-0x0000000001000000-0x00000000011A7000-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_7b8d7f8635141b98a214d774f6872269.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7b8d7f8635141b98a214d774f6872269.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7b8d7f8635141b98a214d774f6872269.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2644

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/2644-0-0x0000000001000000-0x00000000011A7000-memory.dmp

Filesize
1.7MB

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memory/2644-1-0x0000000001005000-0x0000000001006000-memory.dmp

Filesize
4KB

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memory/2644-2-0x0000000001000000-0x00000000011A7000-memory.dmp

Filesize
1.7MB

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