expiro | 5c3bc9897e04a1b4d965d7816df0291c587fa194e1af8560bf373b2e3c39e919

Analysis

max time kernel
14s
max time network
18s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
26/01/2025, 12:03

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General

Target

JaffaCakes118_35524224b338d2846aaa8aa18515951c.exe
Size

249KB
MD5

35524224b338d2846aaa8aa18515951c
SHA1

dbc33904df7f97f1f108c9b17ff2d6222743389e
SHA256

5c3bc9897e04a1b4d965d7816df0291c587fa194e1af8560bf373b2e3c39e919
SHA512

a2bd6f485bd8f97a892850b7ea73ff61de4949d8126e5e9cc1a2221e2cd72bf6e6a2e5f298f3fa632797325d82636390e8c37d6ae02eb8f665200a504ac421d2
SSDEEP

6144:F7SqsphUXq5l9oKjVGP6h2qYw525tUIieJoNpklIy4:Yqs7UXwRGP6h2U52tUIhJoNpklI

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/2172-2-0x0000000001000000-0x000000000108B000-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_35524224b338d2846aaa8aa18515951c.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_35524224b338d2846aaa8aa18515951c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_35524224b338d2846aaa8aa18515951c.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2172

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/2172-0-0x0000000001000000-0x000000000108B000-memory.dmp

Filesize
556KB

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memory/2172-1-0x0000000001011000-0x0000000001012000-memory.dmp

Filesize
4KB

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memory/2172-2-0x0000000001000000-0x000000000108B000-memory.dmp

Filesize
556KB

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