expiro | dc275bdd2a8bfa41e18feab1b4453fd271cd47fec871f872ee7aacdfc22a38a7

Analysis

max time kernel
94s
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
04-01-2025 19:35

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General

Target

JaffaCakes118_7b69073b33f7cfeabe6b4e0ad1f237a0.exe
Size

550KB
MD5

7b69073b33f7cfeabe6b4e0ad1f237a0
SHA1

c7d76c86b2d507310047d884d91e22fe95a505b3
SHA256

dc275bdd2a8bfa41e18feab1b4453fd271cd47fec871f872ee7aacdfc22a38a7
SHA512

11eb8fbc4bfd5f18984408b837a95fe657e0d2be8e13167e2ffc3bb2e8e46d40ab9d6dfcb8c855389d51c85fc7d2572ffce13a809163155a7eb4e0ac29fb1391
SSDEEP

12288:oL/XsvUhimuAFlu48kptSApRfdtfGp4UlyoEd8fWyEU:oj0YJjRfPfGNlyoEFJ

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/1708-2-0x0000000001000000-0x00000000011A5000-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_7b69073b33f7cfeabe6b4e0ad1f237a0.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1708	JaffaCakes118_7b69073b33f7cfeabe6b4e0ad1f237a0.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7b69073b33f7cfeabe6b4e0ad1f237a0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7b69073b33f7cfeabe6b4e0ad1f237a0.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1708

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/1708-0-0x0000000001000000-0x00000000011A5000-memory.dmp

Filesize
1.6MB

Download
memory/1708-1-0x0000000001004000-0x0000000001005000-memory.dmp

Filesize
4KB

Download
memory/1708-2-0x0000000001000000-0x00000000011A5000-memory.dmp

Filesize
1.6MB

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