expiro | a6a56dd2a6064870c1df65078f56173b9dd620f770dadc909fa8da4062e6160a

Analysis

max time kernel
94s
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
04-01-2025 00:45

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General

Target

JaffaCakes118_76a693274bee28762547daae64483104.exe
Size

457KB
MD5

76a693274bee28762547daae64483104
SHA1

e76138e11a3bb616ab084f3517335250c573f861
SHA256

a6a56dd2a6064870c1df65078f56173b9dd620f770dadc909fa8da4062e6160a
SHA512

407c597e1beed5ce2c2a23998610cdb755345bc586fc5d738b4fb59f551955c52af7dcd3eac18a794a64ccaff5d1d7c401d6270bf9daec30194df9ee91bb6291
SSDEEP

12288:i3txYm5THviE5X+Tvknp8WYe4YTjU/OP03cdiJ:mP1TH95X0Y8m/4WP0Q

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/2376-0-0x0000000010074000-0x0000000010108000-memory.dmp	family_expiro1
behavioral2/memory/2376-1-0x0000000010000000-0x0000000010108000-memory.dmp	family_expiro1
behavioral2/memory/2376-2-0x0000000010074000-0x0000000010108000-memory.dmp	family_expiro1
behavioral2/memory/2376-3-0x0000000010000000-0x0000000010108000-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_76a693274bee28762547daae64483104.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_76a693274bee28762547daae64483104.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_76a693274bee28762547daae64483104.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2376

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/2376-0-0x0000000010074000-0x0000000010108000-memory.dmp

Filesize
592KB

Download
memory/2376-1-0x0000000010000000-0x0000000010108000-memory.dmp

Filesize
1.0MB

Download
memory/2376-2-0x0000000010074000-0x0000000010108000-memory.dmp

Filesize
592KB

Download
memory/2376-3-0x0000000010000000-0x0000000010108000-memory.dmp

Filesize
1.0MB

Download