guloader | c519ce4b04daef5b05f65776649e70f87545807fff4b5595e716cc601fb38eb6

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11-02-2025 17:29

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Report Analysis Logs

General

Target

Request for Quotation_TRT10102025_pdf.exe
Size

1.0MB
MD5

1c49b3c14047f9394a16fe4ba22b6a38
SHA1

33f48f5750d5585c037e96b3c1fbca1d1b59ea46
SHA256

c519ce4b04daef5b05f65776649e70f87545807fff4b5595e716cc601fb38eb6
SHA512

26bd625326b0b3d5d7e15b869d75975c69d72d0b884bd4f1528dfe737a85b7b969a7335bd307bd9a447917e254656eea9cc11231ef938b322fee39510db2a56d
SSDEEP

12288:LzORStC06lt5MuLD/R6FCtnd74ELgHsFKg5lp8aG8mFT/+AgidpiJ:LzOEC045MM//9WHE5/NG5Hgape

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 2 IoCs

pid	Process
2516	Request for Quotation_TRT10102025_pdf.exe
2516	Request for Quotation_TRT10102025_pdf.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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	Request for Quotation_TRT10102025_pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for Quotation_TRT10102025_pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	Request for Quotation_TRT10102025_pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for Quotation_TRT10102025_pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Request for Quotation_TRT10102025_pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	Request for Quotation_TRT10102025_pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for Quotation_TRT10102025_pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for Quotation_TRT10102025_pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for Quotation_TRT10102025_pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Request for Quotation_TRT10102025_pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Request for Quotation_TRT10102025_pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for Quotation_TRT10102025_pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for Quotation_TRT10102025_pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for Quotation_TRT10102025_pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for Quotation_TRT10102025_pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Request for Quotation_TRT10102025_pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Request for Quotation_TRT10102025_pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	Request for Quotation_TRT10102025_pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for Quotation_TRT10102025_pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for Quotation_TRT10102025_pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for Quotation_TRT10102025_pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for Quotation_TRT10102025_pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for Quotation_TRT10102025_pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for Quotation_TRT10102025_pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	Request for Quotation_TRT10102025_pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	Request for Quotation_TRT10102025_pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for Quotation_TRT10102025_pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Request for Quotation_TRT10102025_pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for Quotation_TRT10102025_pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	Request for Quotation_TRT10102025_pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for Quotation_TRT10102025_pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for Quotation_TRT10102025_pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for Quotation_TRT10102025_pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	Request for Quotation_TRT10102025_pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for Quotation_TRT10102025_pdf.exe

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

Web Service

T1102

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

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
2352	Request for Quotation_TRT10102025_pdf.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2516	Request for Quotation_TRT10102025_pdf.exe
2352	Request for Quotation_TRT10102025_pdf.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	Request for Quotation_TRT10102025_pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Request for Quotation_TRT10102025_pdf.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2516	Request for Quotation_TRT10102025_pdf.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2352	Request for Quotation_TRT10102025_pdf.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2516 wrote to memory of 2352	2516	Request for Quotation_TRT10102025_pdf.exe	30
PID 2516 wrote to memory of 2352	2516	Request for Quotation_TRT10102025_pdf.exe	30
PID 2516 wrote to memory of 2352	2516	Request for Quotation_TRT10102025_pdf.exe	30
PID 2516 wrote to memory of 2352	2516	Request for Quotation_TRT10102025_pdf.exe	30
PID 2516 wrote to memory of 2352	2516	Request for Quotation_TRT10102025_pdf.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for Quotation_TRT10102025_pdf.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Request for Quotation_TRT10102025_pdf.exe

C:\Users\Admin\AppData\Local\Temp\Request for Quotation_TRT10102025_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Request for Quotation_TRT10102025_pdf.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2516
- C:\Users\Admin\AppData\Local\Temp\Request for Quotation_TRT10102025_pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Request for Quotation_TRT10102025_pdf.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:2352

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\nsd8788.tmp\System.dll

Filesize
11KB

MD5
3f176d1ee13b0d7d6bd92e1c7a0b9bae

SHA1
fe582246792774c2c9dd15639ffa0aca90d6fd0b

SHA256
fa4ab1d6f79fd677433a31ada7806373a789d34328da46ccb0449bbf347bd73e

SHA512
0a69124819b7568d0dea4e9e85ce8fe61c7ba697c934e3a95e2dcfb9f252b1d9da7faf8774b6e8efd614885507acc94987733eba09a2f5e7098b774dfc8524b6

Download Submit
memory/2352-92-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2352-47-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2352-2118-0x0000000036F30000-0x0000000037010000-memory.dmp

Filesize
896KB

Download
memory/2352-90-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2352-21-0x0000000001530000-0x0000000003751000-memory.dmp

Filesize
34.1MB

Download
memory/2352-22-0x00000000770D0000-0x0000000077279000-memory.dmp

Filesize
1.7MB

Download
memory/2352-29-0x00000000004C0000-0x0000000001522000-memory.dmp

Filesize
16.4MB

Download
memory/2352-43-0x00000000004C0000-0x0000000001522000-memory.dmp

Filesize
16.4MB

Download
memory/2352-44-0x0000000001530000-0x0000000003751000-memory.dmp

Filesize
34.1MB

Download
memory/2352-45-0x00000000004C0000-0x0000000000520000-memory.dmp

Filesize
384KB

Download
memory/2352-46-0x00000000343E0000-0x0000000034476000-memory.dmp

Filesize
600KB

Download
memory/2352-68-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2352-106-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2352-104-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2352-2112-0x0000000036A70000-0x0000000036ABC000-memory.dmp

Filesize
304KB

Download
memory/2352-2111-0x00000000345F0000-0x000000003461C000-memory.dmp

Filesize
176KB

Download
memory/2352-102-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2352-86-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2352-98-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2352-96-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2352-94-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2352-88-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2352-48-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2352-50-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2352-100-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2352-84-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2352-82-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2352-80-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2352-78-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2352-76-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2352-74-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2352-72-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2352-70-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2352-66-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2352-64-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2352-62-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2352-60-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2352-58-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2352-56-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2352-54-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2352-52-0x00000000343E0000-0x0000000034471000-memory.dmp

Filesize
580KB

Download
memory/2516-18-0x00000000770D1000-0x00000000771D2000-memory.dmp

Filesize
1.0MB

Download
memory/2516-20-0x0000000002F30000-0x0000000005151000-memory.dmp

Filesize
34.1MB

Download
memory/2516-17-0x0000000002F30000-0x0000000005151000-memory.dmp

Filesize
34.1MB

Download
memory/2516-19-0x00000000770D0000-0x0000000077279000-memory.dmp

Filesize
1.7MB

Download