expiro | 17f0b30fc5023af9c8b96b5ce42c0c47f497ec9b9acb8141f560eb9a80b81177

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-01-2025 16:07

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General

Target

JaffaCakes118_6659631f2b97b6b9cb2ac5a0d7b2f9b0.exe
Size

540KB
MD5

6659631f2b97b6b9cb2ac5a0d7b2f9b0
SHA1

527f19ad79637f1199fbe0570c6ce7fd74424e6c
SHA256

17f0b30fc5023af9c8b96b5ce42c0c47f497ec9b9acb8141f560eb9a80b81177
SHA512

938252af30984106e1abda11bd11403192fe413cc3930ada3176c2a94f9b6ec2363263adcc957ad25419d2f4842843ba10ba70e5985c839deb9ea2ad0b6f6258
SSDEEP

12288:aDxbv3Mr8rNREc55tdsNqFRWBSpf+NlLABVKMz4g3:aDxbv3MrCNr3rUBSpf+NlLgKMzv

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/2536-0-0x0000000001000000-0x00000000011A3000-memory.dmp	family_expiro1
behavioral1/memory/2536-1-0x0000000001000000-0x00000000011A3000-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_6659631f2b97b6b9cb2ac5a0d7b2f9b0.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6659631f2b97b6b9cb2ac5a0d7b2f9b0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6659631f2b97b6b9cb2ac5a0d7b2f9b0.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2536

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/2536-0-0x0000000001000000-0x00000000011A3000-memory.dmp

Filesize
1.6MB

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memory/2536-1-0x0000000001000000-0x00000000011A3000-memory.dmp

Filesize
1.6MB

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