expiro | 1fb6ba9827c35898a9e68d123a12d07dc18066a159747248e5f43bb75477a7f7

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-01-2025 01:13

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General

Target

JaffaCakes118_76c25e700c56faf138fe759c70677f43.exe
Size

719KB
MD5

76c25e700c56faf138fe759c70677f43
SHA1

0a7c05ab8a6d24a94f8b7f5b394cc4f00304c214
SHA256

1fb6ba9827c35898a9e68d123a12d07dc18066a159747248e5f43bb75477a7f7
SHA512

905d3128d42c9d2ddb8c3b4bf11e89ebc5b7b2a77f39f24df6ab714f531565719ff71eee0eedb2d5d8af97bc3be1d698a7bd6c529c13a8f1124a3277e7b03ac0
SSDEEP

12288:hxLVssCpn5K6h8k9Vx0jhXmmGhlZNUOG3cuDCgND:hxLQi6hAwmGvZNu3c2N

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/2608-2-0x0000000001000000-0x00000000011DE000-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_76c25e700c56faf138fe759c70677f43.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_76c25e700c56faf138fe759c70677f43.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_76c25e700c56faf138fe759c70677f43.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2608

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/2608-0-0x0000000001000000-0x00000000011DE000-memory.dmp

Filesize
1.9MB

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memory/2608-1-0x000000000102E000-0x000000000102F000-memory.dmp

Filesize
4KB

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memory/2608-2-0x0000000001000000-0x00000000011DE000-memory.dmp

Filesize
1.9MB

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