656eb4d10487e855a11b88e487b887e88f8d3540f14c6a08869e83f8c2d5e13f

Analysis

max time kernel
121s
max time network
126s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08-01-2025 00:54

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General

Target

Mozilla Firefox/maintenanceservice_installer.exe
Size

184KB
MD5

375fa830b43d7eaf2ac453417028b07a
SHA1

c9c3e3748de7157ff2be480511ddb76fa3b9cf60
SHA256

a98f5c087a8c7fffc7e7de8c579d68008f343493e25338767b1f7e4296e62d85
SHA512

0f0b7bcab6695ef5ab3ae105020e0fd7392f6865b1bd64f9296550448db144c4f276b9fbd61ee4f417e7e377cb7b2272d3613310acef311dbca2c6266378a882
SSDEEP

3072:sNRCywDw1DiJkuKUNRD5bdb4g2Lem7y6tuU/RDObU7y4jem7y6tJS:sT4DteUjD514Z9oU5DOY7y4j9O

Score

4^/10

discovery

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
2100	maintenanceservice_installer.exe

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	maintenanceservice_installer.exe

C:\Users\Admin\AppData\Local\Temp\Mozilla Firefox\maintenanceservice_installer.exe
"C:\Users\Admin\AppData\Local\Temp\Mozilla Firefox\maintenanceservice_installer.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:2100

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

\Users\Admin\AppData\Local\Temp\nsjBAD8.tmp\System.dll

Filesize
22KB

MD5
b361682fa5e6a1906e754cfa08aa8d90

SHA1
c6701aee0c866565de1b7c1f81fd88da56b395d3

SHA256
b711c4f17690421c9dc8ddb9ed5a9ddc539b3a28f11e19c851e25dcfc7701c04

SHA512
2778f91c9bcf83277d26c71118a1ccb0fb3ce50e89729f14f4915bc65dd48503a77b1e5118ce774dea72f5ce3cc8681eb9ca3c55cf90e9f61a177101ba192ae9

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