expiro | d45892a169af1340d3f1a47704b28f3c75abb78979a0270bf88e6ef09bfd855d

Analysis

max time kernel
121s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31-12-2024 22:20

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General

Target

JaffaCakes118_3aaec9ec3944a23d583d1e0911764276.exe
Size

457KB
MD5

3aaec9ec3944a23d583d1e0911764276
SHA1

9b7dc41c48635c55c6334af9b45e851870ac72c6
SHA256

d45892a169af1340d3f1a47704b28f3c75abb78979a0270bf88e6ef09bfd855d
SHA512

7e04826b050564a74e20b6f9496b23b387b23183c8a3aa2e82edd6863265c58a81e07288d919cfe2573b64f77a8428494906ad9ff717fbd9d911fa3a60a511fa
SSDEEP

12288:fbG6PfF8jkM6JpiZccVxM+7tiYo4WgzQWbs2HtdPru3:zG9jkbri2wnJ5Wks2N

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/2012-0-0x0000000010074000-0x0000000010108000-memory.dmp	family_expiro1
behavioral1/memory/2012-1-0x0000000010000000-0x0000000010108000-memory.dmp	family_expiro1
behavioral1/memory/2012-2-0x0000000010074000-0x0000000010108000-memory.dmp	family_expiro1
behavioral1/memory/2012-3-0x0000000010000000-0x0000000010108000-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_3aaec9ec3944a23d583d1e0911764276.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3aaec9ec3944a23d583d1e0911764276.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3aaec9ec3944a23d583d1e0911764276.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2012

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/2012-0-0x0000000010074000-0x0000000010108000-memory.dmp

Filesize
592KB

Download
memory/2012-1-0x0000000010000000-0x0000000010108000-memory.dmp

Filesize
1.0MB

Download
memory/2012-2-0x0000000010074000-0x0000000010108000-memory.dmp

Filesize
592KB

Download
memory/2012-3-0x0000000010000000-0x0000000010108000-memory.dmp

Filesize
1.0MB

Download