expiro | 9f4639684749325cbc3a43cc8db05247b5b01a88ef6a02394031e9dd5f588666

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
09-01-2025 13:39

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General

Target

JaffaCakes118_c98643258475799266a7b8be4ab93410.exe
Size

415KB
MD5

c98643258475799266a7b8be4ab93410
SHA1

8994869e9a452f0d348f38a26528e6702d86a9f7
SHA256

9f4639684749325cbc3a43cc8db05247b5b01a88ef6a02394031e9dd5f588666
SHA512

b4b128b0d56732acf69588875281e6b3b7cf463a351cf155868f00a120d327bc4f26ff96535227c8b2d9c09afd0919ef2e1e5acf4d438cb717ae1ec5b22aa0b4
SSDEEP

6144:Yr+yKsiGDSed33qGshc1LYVZm/NAYD2L6H09EUkXav9vWeePLBv1P+5H0Y:Yr+yKsi0RqtWByWHoIavVaj6h0Y

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/4052-0-0x000000000052B000-0x00000000005BE000-memory.dmp	family_expiro1
behavioral2/memory/4052-2-0x000000000052B000-0x00000000005BE000-memory.dmp	family_expiro1
behavioral2/memory/4052-1-0x00000000004C0000-0x00000000005BE000-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_c98643258475799266a7b8be4ab93410.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c98643258475799266a7b8be4ab93410.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c98643258475799266a7b8be4ab93410.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:4052

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/4052-0-0x000000000052B000-0x00000000005BE000-memory.dmp

Filesize
588KB

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memory/4052-2-0x000000000052B000-0x00000000005BE000-memory.dmp

Filesize
588KB

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memory/4052-1-0x00000000004C0000-0x00000000005BE000-memory.dmp

Filesize
1016KB

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