expiro | 2e3b2fcd479decbc0f62de6d70349e4c610f93949a481b0a787c9d5c9bf4140b

Analysis

max time kernel
93s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08-01-2025 05:18

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General

Target

JaffaCakes118_8d72f78543978db003970cdb96354e14.exe
Size

415KB
MD5

8d72f78543978db003970cdb96354e14
SHA1

68508bee773902dc320a800c7a3d01af2bfe3500
SHA256

2e3b2fcd479decbc0f62de6d70349e4c610f93949a481b0a787c9d5c9bf4140b
SHA512

d06f2beb4415ae1675e61ff328d66e8d2fe26c4b0fcbec418c841149906d5960e1781dffe40febf6885d1f77ad455bdea106775b8013c3b1f95ece33f98e809c
SSDEEP

6144:kr8yKsi/sR4BNvnhohL9l/QcLXMIOopu8nwvfUhhTaM7q:kr8yKsi/sRYFhyLPOknwvf27q

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/4948-0-0x00000000007CB000-0x000000000085E000-memory.dmp	family_expiro1
behavioral2/memory/4948-1-0x00000000007CB000-0x000000000085E000-memory.dmp	family_expiro1
behavioral2/memory/4948-2-0x0000000000760000-0x000000000085E000-memory.dmp	family_expiro1
behavioral2/memory/4948-3-0x0000000000760000-0x000000000085E000-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_8d72f78543978db003970cdb96354e14.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8d72f78543978db003970cdb96354e14.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8d72f78543978db003970cdb96354e14.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:4948

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/4948-0-0x00000000007CB000-0x000000000085E000-memory.dmp

Filesize
588KB

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memory/4948-1-0x00000000007CB000-0x000000000085E000-memory.dmp

Filesize
588KB

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memory/4948-2-0x0000000000760000-0x000000000085E000-memory.dmp

Filesize
1016KB

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memory/4948-3-0x0000000000760000-0x000000000085E000-memory.dmp

Filesize
1016KB

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