expiro | 89f5e95f29598074516207e355d6babdc5fbf0dc60f0a826e176e71965d89849

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31/12/2024, 13:15

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General

Target

JaffaCakes118_1ddccfcf2a14b8dd1553585152ce568c.exe
Size

457KB
MD5

1ddccfcf2a14b8dd1553585152ce568c
SHA1

777596cb5b015aa326b26ae53daa1bae54e989c6
SHA256

89f5e95f29598074516207e355d6babdc5fbf0dc60f0a826e176e71965d89849
SHA512

0c8aeb804227d2be2214fe70de0698c672b7d12c3ad95b77256721ce331934491d05ef06fc79f943897c52b491ed59a01877125b2926a588536a9ca5cc82afd9
SSDEEP

12288:0yseBUmKNwJ0CKW2F5rCVdrQGp0Nmk5bwjFf:ZJemKuKWSIVdrQGpAbOj1

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
behavioral1/memory/2512-0-0x0000000010074000-0x0000000010108000-memory.dmp	family_expiro1
behavioral1/memory/2512-1-0x0000000010000000-0x0000000010108000-memory.dmp	family_expiro1
behavioral1/memory/2512-2-0x0000000010074000-0x0000000010108000-memory.dmp	family_expiro1
behavioral1/memory/2512-3-0x0000000010000000-0x0000000010108000-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_1ddccfcf2a14b8dd1553585152ce568c.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1ddccfcf2a14b8dd1553585152ce568c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1ddccfcf2a14b8dd1553585152ce568c.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2512

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/2512-0-0x0000000010074000-0x0000000010108000-memory.dmp

Filesize
592KB

Download
memory/2512-1-0x0000000010000000-0x0000000010108000-memory.dmp

Filesize
1.0MB

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memory/2512-2-0x0000000010074000-0x0000000010108000-memory.dmp

Filesize
592KB

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memory/2512-3-0x0000000010000000-0x0000000010108000-memory.dmp

Filesize
1.0MB

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