expiro | 75aee17f1c166356bd5f2d3d3a169164260ad6f456f3d3b991c087fbe8784753

Analysis

max time kernel
95s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2024 21:22

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General

Target

JaffaCakes118_37ac9b7fa514cfed01b0c7364c2c79b1.exe
Size

402KB
MD5

37ac9b7fa514cfed01b0c7364c2c79b1
SHA1

d096b4951a37befadcbdd19c590394cdf047007f
SHA256

75aee17f1c166356bd5f2d3d3a169164260ad6f456f3d3b991c087fbe8784753
SHA512

58067b490d6b3d060710cbccef44eb260051fa21c5c9b397c0c4a7bd2e4ef8a0f98e3fc65fd8ede0f7766ec68e490b7665a165a0a5d429478a3b274618dff471
SSDEEP

6144:GbjqxF+cAVJsbfbmRqQQQrR8dfzaXwgCXoc3lIXtAjruWc/ndE1qoq:GbjC2VSfaydyml6twr6vvo

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 3 IoCs

backdoor

resource	yara_rule
behavioral2/memory/2064-0-0x0000000001068000-0x00000000010FB000-memory.dmp	family_expiro1
behavioral2/memory/2064-1-0x0000000001000000-0x00000000010FB000-memory.dmp	family_expiro1
behavioral2/memory/2064-2-0x0000000001068000-0x00000000010FB000-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_37ac9b7fa514cfed01b0c7364c2c79b1.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_37ac9b7fa514cfed01b0c7364c2c79b1.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_37ac9b7fa514cfed01b0c7364c2c79b1.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2064

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/2064-0-0x0000000001068000-0x00000000010FB000-memory.dmp

Filesize
588KB

Download
memory/2064-1-0x0000000001000000-0x00000000010FB000-memory.dmp

Filesize
1004KB

Download
memory/2064-2-0x0000000001068000-0x00000000010FB000-memory.dmp

Filesize
588KB

Download