expiro | 88a62a2bf60cd8e83b04153751bfef19ff918407c07f0c02311c140244fd6521

Analysis

max time kernel
93s
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
04-01-2025 18:46

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General

Target

JaffaCakes118_7b3ab841d7a4a8420c44d7f9b7236f80.exe
Size

642KB
MD5

7b3ab841d7a4a8420c44d7f9b7236f80
SHA1

580abfb9c5902dd18aa727cbc1138dcbb74bcb7d
SHA256

88a62a2bf60cd8e83b04153751bfef19ff918407c07f0c02311c140244fd6521
SHA512

a6436b0029dc30dcef85893c5799bbd0a248dc11e84b25627f9bed6c68603bf1640018f3af91d2ac3fede0b4b7123fbfe7bd32c8659bade581c50ec4bdfbb9ab
SSDEEP

12288:uDQ1nScI+uWd/LDF3a4CoZJH3YapyARdBMk8Zk/3wANBDXe:qQ1nfZdLZVpJdqkR4

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 1 IoCs

backdoor

resource	yara_rule
behavioral2/memory/1208-2-0x0000000001000000-0x00000000011C7000-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_7b3ab841d7a4a8420c44d7f9b7236f80.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7b3ab841d7a4a8420c44d7f9b7236f80.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7b3ab841d7a4a8420c44d7f9b7236f80.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:1208

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/1208-0-0x0000000001000000-0x00000000011C7000-memory.dmp

Filesize
1.8MB

Download
memory/1208-1-0x0000000001019000-0x000000000101A000-memory.dmp

Filesize
4KB

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memory/1208-2-0x0000000001000000-0x00000000011C7000-memory.dmp

Filesize
1.8MB

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