guloader | 89f5bd6259a779ee1a01ad47f457ee15086ddae1e9aa9bef633584db7f6164ab

Analysis

max time kernel
142s
max time network
145s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
25/02/2025, 10:55

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General

Target

Patronne.exe
Size

801KB
MD5

957bd43ee84ccac64380bd91efa4c665
SHA1

713f7c3bed7f070700ac57bf38f39d0c23312b9e
SHA256

89f5bd6259a779ee1a01ad47f457ee15086ddae1e9aa9bef633584db7f6164ab
SHA512

a195b144677287304d639156e30088acb18a8ccb77a2203d4f8cb0cf2c986bffb35b78ef65e8e5417c456cdfc754c914ae437fc211eecbe78a46f8702e015be0
SSDEEP

24576:fXrqImBCUkwIzhHo8kEBxr9Uxk8vZ/y0gwHG7:fWIS4rCJvRy0vHQ

Score

10^/10

guloader collection discovery downloader spyware stealer

Malware Config

Signatures

Guloader family
guloader
Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader

Loads dropped DLL 1 IoCs

pid	Process
2572	Patronne.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 35 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	Patronne.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Patronne.exe
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Patronne.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	Patronne.exe
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Patronne.exe
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Patronne.exe
Key queried	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Patronne.exe
Key queried	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Patronne.exe
Key queried	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Patronne.exe
Key queried	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	Patronne.exe
Key queried	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Patronne.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Patronne.exe
Key queried	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Patronne.exe
Key queried	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Patronne.exe
Key queried	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Patronne.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Patronne.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Patronne.exe
Key queried	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Patronne.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	Patronne.exe
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Patronne.exe
Key queried	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	Patronne.exe
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Patronne.exe
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Patronne.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Patronne.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Patronne.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Patronne.exe
Key queried	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	Patronne.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Patronne.exe
Key queried	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Patronne.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Patronne.exe
Key queried	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Patronne.exe
Key queried	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	Patronne.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Patronne.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	Patronne.exe
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Patronne.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
4	drive.google.com
5	drive.google.com

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
2804	Patronne.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2572	Patronne.exe
2804	Patronne.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Fonts\verdenshistoriske\moschidae.Law230	Patronne.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 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	Patronne.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Patronne.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2572	Patronne.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2804	Patronne.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2572 wrote to memory of 2804	2572	Patronne.exe	31
PID 2572 wrote to memory of 2804	2572	Patronne.exe	31
PID 2572 wrote to memory of 2804	2572	Patronne.exe	31
PID 2572 wrote to memory of 2804	2572	Patronne.exe	31
PID 2572 wrote to memory of 2804	2572	Patronne.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Patronne.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Patronne.exe

C:\Users\Admin\AppData\Local\Temp\Patronne.exe
"C:\Users\Admin\AppData\Local\Temp\Patronne.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2572
- C:\Users\Admin\AppData\Local\Temp\Patronne.exe
  "C:\Users\Admin\AppData\Local\Temp\Patronne.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2804

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

Browser Information Discovery

T1217

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nsjE533.tmp\System.dll

Filesize
11KB

MD5
3e6bf00b3ac976122f982ae2aadb1c51

SHA1
caab188f7fdc84d3fdcb2922edeeb5ed576bd31d

SHA256
4ff9b2678d698677c5d9732678f9cf53f17290e09d053691aac4cc6e6f595cbe

SHA512
1286f05e6a7e6b691f6e479638e7179897598e171b52eb3a3dc0e830415251069d29416b6d1ffc6d7dce8da5625e1479be06db9b7179e7776659c5c1ad6aa706

Download Submit
memory/2572-26-0x0000000077C40000-0x0000000077DE9000-memory.dmp

Filesize
1.7MB

Download
memory/2572-25-0x0000000077C41000-0x0000000077D42000-memory.dmp

Filesize
1.0MB

Download
memory/2804-27-0x0000000001500000-0x0000000004FE9000-memory.dmp

Filesize
58.9MB

Download
memory/2804-28-0x0000000077C40000-0x0000000077DE9000-memory.dmp

Filesize
1.7MB

Download
memory/2804-48-0x0000000000490000-0x00000000014F2000-memory.dmp

Filesize
16.4MB

Download
memory/2804-49-0x0000000000490000-0x00000000014F2000-memory.dmp

Filesize
16.4MB

Download
memory/2804-51-0x0000000000490000-0x00000000004F0000-memory.dmp

Filesize
384KB

Download
memory/2804-52-0x0000000038190000-0x0000000038228000-memory.dmp

Filesize
608KB

Download
memory/2804-50-0x0000000001500000-0x0000000004FE9000-memory.dmp

Filesize
58.9MB

Download
memory/2804-92-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-102-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-112-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-110-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-108-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-106-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-104-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-100-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-98-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-96-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-94-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-90-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-86-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-84-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-82-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-80-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-76-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-74-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-72-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-70-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-66-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-64-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-62-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-60-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-58-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-56-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-88-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-78-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-54-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-68-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-53-0x0000000038190000-0x0000000038222000-memory.dmp

Filesize
584KB

Download
memory/2804-2118-0x0000000038360000-0x00000000383AC000-memory.dmp

Filesize
304KB

Download
memory/2804-2117-0x00000000382A0000-0x00000000382CC000-memory.dmp

Filesize
176KB

Download
memory/2804-2119-0x00000000387C0000-0x00000000388A0000-memory.dmp

Filesize
896KB

Download