expiro | 07a48684518ed6dadc9847d8ac13973e4f3a64ff70b538be18c5fe08faa34753

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
06-01-2025 05:06

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General

Target

JaffaCakes118_10208b04f621f3a9389fec9b1d60a645.exe
Size

415KB
MD5

10208b04f621f3a9389fec9b1d60a645
SHA1

2a8e3c5a91809bc072385760c576b8393ab6c4c6
SHA256

07a48684518ed6dadc9847d8ac13973e4f3a64ff70b538be18c5fe08faa34753
SHA512

fbd79254943a4a62611abb1573ccac2050dac2ec02e807166967772e433ff0e475b4ebefac16836fa73887ba9853a70422afbcd993fe76cd2d4f9688c6e72983
SSDEEP

12288:OrPyKsiKSYZhcjx9OerEp2ZEDX6gTic9P:OrPyKsiKLAeUYlacF

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/3092-0-0x000000000090B000-0x000000000099E000-memory.dmp	family_expiro1
behavioral2/memory/3092-3-0x00000000008A0000-0x000000000099E000-memory.dmp	family_expiro1
behavioral2/memory/3092-2-0x000000000090B000-0x000000000099E000-memory.dmp	family_expiro1
behavioral2/memory/3092-1-0x00000000008A0000-0x000000000099E000-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_10208b04f621f3a9389fec9b1d60a645.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_10208b04f621f3a9389fec9b1d60a645.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_10208b04f621f3a9389fec9b1d60a645.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:3092

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/3092-0-0x000000000090B000-0x000000000099E000-memory.dmp

Filesize
588KB

Download
memory/3092-3-0x00000000008A0000-0x000000000099E000-memory.dmp

Filesize
1016KB

Download
memory/3092-2-0x000000000090B000-0x000000000099E000-memory.dmp

Filesize
588KB

Download
memory/3092-1-0x00000000008A0000-0x000000000099E000-memory.dmp

Filesize
1016KB

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