expiro | f90ca7fbc7e5e21beb60e85a3a9bba79591185424aa1b9b091e4d62713b49cb5

Analysis

max time kernel
95s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-01-2025 00:31

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General

Target

JaffaCakes118_40cf53600beb2ea141fad4a7a7dad861.exe
Size

457KB
MD5

40cf53600beb2ea141fad4a7a7dad861
SHA1

6bc8fe4440defeaff25ae686e99b4450544dbaf7
SHA256

f90ca7fbc7e5e21beb60e85a3a9bba79591185424aa1b9b091e4d62713b49cb5
SHA512

fd3c9c6e46ff08fa493505b1e626da7b221a9adc23570dd5a3812cf050ba03af5cb3d53b02fe227ef226bf941209d080a5bfabd5a4e864182d0ce8bb104e873c
SSDEEP

12288:0fEs4SjnaspOaT0tSSOw10VLhIYF8RThd:gEs4MnaspOaTKKw0a7d

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/4964-0-0x0000000010074000-0x0000000010108000-memory.dmp	family_expiro1
behavioral2/memory/4964-1-0x0000000010000000-0x0000000010108000-memory.dmp	family_expiro1
behavioral2/memory/4964-2-0x0000000010074000-0x0000000010108000-memory.dmp	family_expiro1
behavioral2/memory/4964-3-0x0000000010000000-0x0000000010108000-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_40cf53600beb2ea141fad4a7a7dad861.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40cf53600beb2ea141fad4a7a7dad861.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40cf53600beb2ea141fad4a7a7dad861.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:4964

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/4964-0-0x0000000010074000-0x0000000010108000-memory.dmp

Filesize
592KB

Download
memory/4964-1-0x0000000010000000-0x0000000010108000-memory.dmp

Filesize
1.0MB

Download
memory/4964-2-0x0000000010074000-0x0000000010108000-memory.dmp

Filesize
592KB

Download
memory/4964-3-0x0000000010000000-0x0000000010108000-memory.dmp

Filesize
1.0MB

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