guloader | 4c4b1980eed21f43c792e2d1727b36c9a6cf04b7732250d4559ca4a2f341dda8

Analysis

max time kernel
144s
max time network
143s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19/02/2025, 11:56

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General

Target

PaymentSummary2025112.exe
Size

614KB
MD5

6b654cb879dd6171a27f49ede0640dd0
SHA1

f3b604c42287475b70a3372ac271b083bf47d617
SHA256

4c4b1980eed21f43c792e2d1727b36c9a6cf04b7732250d4559ca4a2f341dda8
SHA512

e4dcd46b03554ebbcbbad4fc007e09ef051e455a3f2b8a1cde3d7dd25a505d5bf04dae5d14d96e2f1f67d18efebdf4d434f1ba7aed876b605805a18c30e2001a
SSDEEP

12288:ZfZ6QaYTUyLt20YOlIlBEpR72as3pKbax5fUxg9V0ttHXbai1P4dXV:ZIdItdYOCBM7l+psax5Mxg6tWiR4/

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
2080	PaymentSummary2025112.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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentSummary2025112.exe
Key queried	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	PaymentSummary2025112.exe
Key queried	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	PaymentSummary2025112.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	PaymentSummary2025112.exe
Key queried	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	PaymentSummary2025112.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	PaymentSummary2025112.exe
Key opened	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentSummary2025112.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentSummary2025112.exe
Key queried	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	PaymentSummary2025112.exe
Key opened	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentSummary2025112.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	PaymentSummary2025112.exe
Key opened	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentSummary2025112.exe
Key opened	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentSummary2025112.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentSummary2025112.exe
Key queried	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentSummary2025112.exe
Key opened	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentSummary2025112.exe
Key queried	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	PaymentSummary2025112.exe
Key queried	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentSummary2025112.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentSummary2025112.exe
Key queried	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentSummary2025112.exe
Key opened	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentSummary2025112.exe
Key queried	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	PaymentSummary2025112.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	PaymentSummary2025112.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	PaymentSummary2025112.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	PaymentSummary2025112.exe
Key queried	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentSummary2025112.exe
Key opened	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentSummary2025112.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentSummary2025112.exe
Key queried	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentSummary2025112.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	PaymentSummary2025112.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentSummary2025112.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentSummary2025112.exe
Key queried	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	PaymentSummary2025112.exe
Key queried	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentSummary2025112.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentSummary2025112.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
2584	PaymentSummary2025112.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2080	PaymentSummary2025112.exe
2584	PaymentSummary2025112.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	PaymentSummary2025112.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PaymentSummary2025112.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2080	PaymentSummary2025112.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2584	PaymentSummary2025112.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2080 wrote to memory of 2584	2080	PaymentSummary2025112.exe	30
PID 2080 wrote to memory of 2584	2080	PaymentSummary2025112.exe	30
PID 2080 wrote to memory of 2584	2080	PaymentSummary2025112.exe	30
PID 2080 wrote to memory of 2584	2080	PaymentSummary2025112.exe	30
PID 2080 wrote to memory of 2584	2080	PaymentSummary2025112.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentSummary2025112.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PaymentSummary2025112.exe

C:\Users\Admin\AppData\Local\Temp\PaymentSummary2025112.exe
"C:\Users\Admin\AppData\Local\Temp\PaymentSummary2025112.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2080
- C:\Users\Admin\AppData\Local\Temp\PaymentSummary2025112.exe
  "C:\Users\Admin\AppData\Local\Temp\PaymentSummary2025112.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:2584

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

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\inddatafunktions.ini

Filesize
37B

MD5
4fbe761fb296431fa2b2b2f1b2151773

SHA1
22b08baab25ba9367620747f559b8a9900d39f5e

SHA256
4e71a5b2c04ec9db74bb59e1ee2caa7a68d4a393f81ab3bac48226919fa35a5b

SHA512
822b45bc5c8745af9fb4abe43bc4ae74bf06cc24c8d9760cd0c619f5b5805a9cf46f1b1e0d1d082130573cc72c6f060232f117ac9e1544a84083fad197316a80

Download Submit
\Users\Admin\AppData\Local\Temp\nso1047.tmp\System.dll

Filesize
11KB

MD5
75ed96254fbf894e42058062b4b4f0d1

SHA1
996503f1383b49021eb3427bc28d13b5bbd11977

SHA256
a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7

SHA512
58174896db81d481947b8745dafe3a02c150f3938bb4543256e8cce1145154e016d481df9fe68dac6d48407c62cbe20753320ebd5fe5e84806d07ce78e0eb0c4

Download Submit
memory/2080-31-0x0000000077211000-0x0000000077312000-memory.dmp

Filesize
1.0MB

Download
memory/2080-32-0x0000000077210000-0x00000000773B9000-memory.dmp

Filesize
1.7MB

Download
memory/2584-96-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-82-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-41-0x0000000000490000-0x00000000014F2000-memory.dmp

Filesize
16.4MB

Download
memory/2584-57-0x0000000000490000-0x00000000014F2000-memory.dmp

Filesize
16.4MB

Download
memory/2584-58-0x0000000001500000-0x0000000007149000-memory.dmp

Filesize
92.3MB

Download
memory/2584-59-0x0000000000490000-0x00000000004F0000-memory.dmp

Filesize
384KB

Download
memory/2584-60-0x000000003A300000-0x000000003A398000-memory.dmp

Filesize
608KB

Download
memory/2584-61-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-62-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-66-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-68-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-72-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-78-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-80-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-84-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-86-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-90-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-92-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-33-0x0000000001500000-0x0000000007149000-memory.dmp

Filesize
92.3MB

Download
memory/2584-94-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-34-0x0000000077210000-0x00000000773B9000-memory.dmp

Filesize
1.7MB

Download
memory/2584-76-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-88-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-74-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-70-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-64-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-98-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-111-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-100-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-116-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-120-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-118-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-114-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-112-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-108-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-106-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-104-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-102-0x000000003A300000-0x000000003A392000-memory.dmp

Filesize
584KB

Download
memory/2584-2125-0x0000000036F00000-0x0000000036F2C000-memory.dmp

Filesize
176KB

Download
memory/2584-2126-0x000000003A250000-0x000000003A29C000-memory.dmp

Filesize
304KB

Download
memory/2584-2130-0x000000003A3E0000-0x000000003A4C0000-memory.dmp

Filesize
896KB

Download