expiro | 428df49358a5af94947abd26406d50fb1e43e49ff040f7449a25860a564a69df

Analysis

max time kernel
92s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-01-2025 12:20

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General

Target

JaffaCakes118_650c18d3c3c98e433a4671671a075380.exe
Size

604KB
MD5

650c18d3c3c98e433a4671671a075380
SHA1

6ba6462197285cfe159bc0deedd1fa8ff97fd033
SHA256

428df49358a5af94947abd26406d50fb1e43e49ff040f7449a25860a564a69df
SHA512

de732bc19fd4553a30b78e5a26d9da1791a0983fb8851e17e049f00cfc77cc71837a0bc9695da29a81e8773d97d54d116aed53d8d10e792b8f71add575d94df5
SSDEEP

12288:yee7NhkgDmsLV5Rk6z1hI1SducuMwfyXkKdSfdJ+IiQrhBQao6t7n:BCNpDmsLVL18DMs3nxjQao0

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
behavioral2/memory/4828-2-0x0000000000400000-0x00000000005BE000-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_650c18d3c3c98e433a4671671a075380.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_650c18d3c3c98e433a4671671a075380.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_650c18d3c3c98e433a4671671a075380.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:4828

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/4828-0-0x0000000000400000-0x00000000005BE000-memory.dmp

Filesize
1.7MB

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memory/4828-1-0x0000000000404000-0x0000000000406000-memory.dmp

Filesize
8KB

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memory/4828-2-0x0000000000400000-0x00000000005BE000-memory.dmp

Filesize
1.7MB

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