expiro | c65ef76afe470ee6374c040d3f071d3300e44bef5e0482aad151fe112a94ed02

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11/01/2025, 04:13

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General

Target

JaffaCakes118_f6b5db9a551a3d0b5324f1c13b111e5f.exe
Size

415KB
MD5

f6b5db9a551a3d0b5324f1c13b111e5f
SHA1

cfcd537a75ddb73deaf213b4d0b7a49df2ce83af
SHA256

c65ef76afe470ee6374c040d3f071d3300e44bef5e0482aad151fe112a94ed02
SHA512

d51b0c9deba0c972f46d059ad75d040eafaee22f418c8efb38b5a60a16cbaa174d2518e20257e2048867b8541d32433ad6016fa901fb0df30d6b2ae82e677302
SSDEEP

12288:Mr0yKsiwOby+2ksy6cNccOerid8Z198x:Mr0yKsiwQe2ccOerWK

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 4 IoCs

backdoor

resource	yara_rule
behavioral2/memory/560-0-0x000000000010B000-0x000000000019E000-memory.dmp	family_expiro1
behavioral2/memory/560-2-0x00000000000A0000-0x000000000019E000-memory.dmp	family_expiro1
behavioral2/memory/560-1-0x000000000010B000-0x000000000019E000-memory.dmp	family_expiro1
behavioral2/memory/560-3-0x00000000000A0000-0x000000000019E000-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_f6b5db9a551a3d0b5324f1c13b111e5f.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f6b5db9a551a3d0b5324f1c13b111e5f.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f6b5db9a551a3d0b5324f1c13b111e5f.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:560

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

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Downloads

memory/560-0-0x000000000010B000-0x000000000019E000-memory.dmp

Filesize
588KB

Download
memory/560-2-0x00000000000A0000-0x000000000019E000-memory.dmp

Filesize
1016KB

Download
memory/560-1-0x000000000010B000-0x000000000019E000-memory.dmp

Filesize
588KB

Download
memory/560-3-0x00000000000A0000-0x000000000019E000-memory.dmp

Filesize
1016KB

Download