expiro | 6f90918bb77ad4d26da416467e58e7899a61e01e284a4e78360d9b8fbde4bd29

Analysis

max time kernel
122s
max time network
127s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
16-12-2024 02:58

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General

Target

f6fc12c894a81da296740b5aa2c82b32_JaffaCakes118.exe
Size

457KB
MD5

f6fc12c894a81da296740b5aa2c82b32
SHA1

8d37c238c9c555593ccdc122918e27c636db07dc
SHA256

6f90918bb77ad4d26da416467e58e7899a61e01e284a4e78360d9b8fbde4bd29
SHA512

875108e4ab89fe7e4c35d1330d94581b725c94a66e9c82bdce05c0e727f91d4f59683d2b551e50cddfa74ee0130c16bcbdc391c0275bedf49757c2f0d1a61eb1
SSDEEP

12288:x02vVfxdclOVwGld5LzAyfmolUUTcRwUfHx60aEl:2AvHvRTcRwUfxv

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/2448-0-0x0000000010074000-0x0000000010108000-memory.dmp	family_expiro1
behavioral1/memory/2448-1-0x0000000010000000-0x0000000010108000-memory.dmp	family_expiro1
behavioral1/memory/2448-2-0x0000000010074000-0x0000000010108000-memory.dmp	family_expiro1
behavioral1/memory/2448-3-0x0000000010000000-0x0000000010108000-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	f6fc12c894a81da296740b5aa2c82b32_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\f6fc12c894a81da296740b5aa2c82b32_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f6fc12c894a81da296740b5aa2c82b32_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2448

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/2448-0-0x0000000010074000-0x0000000010108000-memory.dmp

Filesize
592KB

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memory/2448-1-0x0000000010000000-0x0000000010108000-memory.dmp

Filesize
1.0MB

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memory/2448-2-0x0000000010074000-0x0000000010108000-memory.dmp

Filesize
592KB

Download
memory/2448-3-0x0000000010000000-0x0000000010108000-memory.dmp

Filesize
1.0MB

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