guloader | b1af6dc34bba3755b225d8f9dd732df86267dce73241c7aa65fdec1282251554

Analysis

max time kernel
54s
max time network
56s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
21/02/2025, 13:25

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Report Analysis Logs

General

Target

PaymentConfirmationforInvoice2025INV149.exe
Size

1.1MB
MD5

498fa48c532298d0b66573d5027bb134
SHA1

d1987503ad04b7f9d102328ac407a261f297d226
SHA256

b1af6dc34bba3755b225d8f9dd732df86267dce73241c7aa65fdec1282251554
SHA512

ecc19e7a5334107c7913a2b9df93fcad4cc08c8067de3074827e9c78795961b6393c3fb2c8521b3e626ae155a31a4ea8539ec08bd091674d8e3c684451997bbd
SSDEEP

24576:MjEmMWRNc7WxEgr1GsflpiWFsjq5c3SddFDykNTwdQG9ikZ:jmjRNQgEg5GsNpi4l5kSdzDPwZim

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
2652	PaymentConfirmationforInvoice2025INV149.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 queried	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	PaymentConfirmationforInvoice2025INV149.exe
Key queried	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	PaymentConfirmationforInvoice2025INV149.exe
Key queried	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentConfirmationforInvoice2025INV149.exe
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentConfirmationforInvoice2025INV149.exe
Key queried	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentConfirmationforInvoice2025INV149.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentConfirmationforInvoice2025INV149.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	PaymentConfirmationforInvoice2025INV149.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentConfirmationforInvoice2025INV149.exe
Key queried	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentConfirmationforInvoice2025INV149.exe
Key queried	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentConfirmationforInvoice2025INV149.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentConfirmationforInvoice2025INV149.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentConfirmationforInvoice2025INV149.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	PaymentConfirmationforInvoice2025INV149.exe
Key queried	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentConfirmationforInvoice2025INV149.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	PaymentConfirmationforInvoice2025INV149.exe
Key queried	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	PaymentConfirmationforInvoice2025INV149.exe
Key queried	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentConfirmationforInvoice2025INV149.exe
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentConfirmationforInvoice2025INV149.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentConfirmationforInvoice2025INV149.exe
Key queried	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	PaymentConfirmationforInvoice2025INV149.exe
Key queried	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	PaymentConfirmationforInvoice2025INV149.exe
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentConfirmationforInvoice2025INV149.exe
Key queried	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	PaymentConfirmationforInvoice2025INV149.exe
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentConfirmationforInvoice2025INV149.exe
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentConfirmationforInvoice2025INV149.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	PaymentConfirmationforInvoice2025INV149.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	PaymentConfirmationforInvoice2025INV149.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	PaymentConfirmationforInvoice2025INV149.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentConfirmationforInvoice2025INV149.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	PaymentConfirmationforInvoice2025INV149.exe
Key queried	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	PaymentConfirmationforInvoice2025INV149.exe
Key queried	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentConfirmationforInvoice2025INV149.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentConfirmationforInvoice2025INV149.exe
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentConfirmationforInvoice2025INV149.exe
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentConfirmationforInvoice2025INV149.exe

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

Web Service

T1102

flow	ioc
3	drive.google.com
5	drive.google.com

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
584	PaymentConfirmationforInvoice2025INV149.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2652	PaymentConfirmationforInvoice2025INV149.exe
584	PaymentConfirmationforInvoice2025INV149.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\etageboligomraader\Afbagte.ini	PaymentConfirmationforInvoice2025INV149.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	PaymentConfirmationforInvoice2025INV149.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PaymentConfirmationforInvoice2025INV149.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2652	PaymentConfirmationforInvoice2025INV149.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	584	PaymentConfirmationforInvoice2025INV149.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2652 wrote to memory of 584	2652	PaymentConfirmationforInvoice2025INV149.exe	30
PID 2652 wrote to memory of 584	2652	PaymentConfirmationforInvoice2025INV149.exe	30
PID 2652 wrote to memory of 584	2652	PaymentConfirmationforInvoice2025INV149.exe	30
PID 2652 wrote to memory of 584	2652	PaymentConfirmationforInvoice2025INV149.exe	30
PID 2652 wrote to memory of 584	2652	PaymentConfirmationforInvoice2025INV149.exe	30

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	PaymentConfirmationforInvoice2025INV149.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	PaymentConfirmationforInvoice2025INV149.exe

C:\Users\Admin\AppData\Local\Temp\PaymentConfirmationforInvoice2025INV149.exe
"C:\Users\Admin\AppData\Local\Temp\PaymentConfirmationforInvoice2025INV149.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2652
- C:\Users\Admin\AppData\Local\Temp\PaymentConfirmationforInvoice2025INV149.exe
  "C:\Users\Admin\AppData\Local\Temp\PaymentConfirmationforInvoice2025INV149.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:584

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\nsoA93B.tmp\System.dll

Filesize
11KB

MD5
ee260c45e97b62a5e42f17460d406068

SHA1
df35f6300a03c4d3d3bd69752574426296b78695

SHA256
e94a1f7bcd7e0d532b660d0af468eb3321536c3efdca265e61f9ec174b1aef27

SHA512
a98f350d17c9057f33e5847462a87d59cbf2aaeda7f6299b0d49bb455e484ce4660c12d2eb8c4a0d21df523e729222bbd6c820bf25b081bc7478152515b414b3

Download Submit
memory/584-95-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-97-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-31-0x00000000014F0000-0x0000000006AEB000-memory.dmp

Filesize
86.0MB

Download
memory/584-32-0x0000000077870000-0x0000000077A19000-memory.dmp

Filesize
1.7MB

Download
memory/584-33-0x0000000000480000-0x00000000014E2000-memory.dmp

Filesize
16.4MB

Download
memory/584-55-0x0000000077870000-0x0000000077A19000-memory.dmp

Filesize
1.7MB

Download
memory/584-56-0x0000000000480000-0x00000000014E2000-memory.dmp

Filesize
16.4MB

Download
memory/584-57-0x00000000014F0000-0x0000000006AEB000-memory.dmp

Filesize
86.0MB

Download
memory/584-58-0x0000000000480000-0x00000000004E0000-memory.dmp

Filesize
384KB

Download
memory/584-59-0x00000000379E0000-0x0000000037A78000-memory.dmp

Filesize
608KB

Download
memory/584-61-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-63-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-67-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-69-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-75-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-77-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-79-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-83-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-87-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-89-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-91-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-2127-0x0000000039E70000-0x0000000039F50000-memory.dmp

Filesize
896KB

Download
memory/584-2126-0x0000000037A80000-0x0000000037ACC000-memory.dmp

Filesize
304KB

Download
memory/584-85-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-81-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-73-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-71-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-65-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-60-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-101-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-112-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-93-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-105-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-119-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-117-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-115-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-113-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-110-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-107-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-103-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-99-0x00000000379E0000-0x0000000037A72000-memory.dmp

Filesize
584KB

Download
memory/584-2125-0x00000000367D0000-0x00000000367FC000-memory.dmp

Filesize
176KB

Download
memory/2652-29-0x0000000077871000-0x0000000077972000-memory.dmp

Filesize
1.0MB

Download
memory/2652-30-0x0000000077870000-0x0000000077A19000-memory.dmp

Filesize
1.7MB

Download