guloader | 5361b9b36e63b571fe6440982140dbe25d395cfb645ec404a8d3fd8f31489b2d

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27/03/2025, 19:08

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General

Target

EO-230807.exe
Size

531KB
MD5

96e7620d6a6a59cefb5cb21e60c4bdee
SHA1

194dc5c849336d95080eeb7498ade2d055319561
SHA256

5361b9b36e63b571fe6440982140dbe25d395cfb645ec404a8d3fd8f31489b2d
SHA512

0277ad5640edf227210d84f6eacaa72f64064e4ca1a37761020269590c28e145bf224ac222fc5bd838e3d58abe415ae40c28f162e70b553dc98a212dcf4bee54
SSDEEP

12288:nDGfx3iNgomHnrVHOvRpZHG3fm9rbzGEC:83R9HMN0onC

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
2816	EO-230807.exe
2816	EO-230807.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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EO-230807.exe
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EO-230807.exe
Key queried	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EO-230807.exe
Key queried	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	EO-230807.exe
Key queried	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	EO-230807.exe
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EO-230807.exe
Key created	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EO-230807.exe
Key queried	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EO-230807.exe
Key created	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	EO-230807.exe
Key created	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	EO-230807.exe
Key queried	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EO-230807.exe
Key queried	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	EO-230807.exe
Key created	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	EO-230807.exe
Key queried	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EO-230807.exe
Key queried	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	EO-230807.exe
Key queried	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EO-230807.exe
Key created	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	EO-230807.exe
Key queried	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EO-230807.exe
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EO-230807.exe
Key created	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EO-230807.exe
Key created	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	EO-230807.exe
Key queried	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EO-230807.exe
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EO-230807.exe
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EO-230807.exe
Key queried	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	EO-230807.exe
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EO-230807.exe
Key created	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EO-230807.exe
Key created	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EO-230807.exe
Key created	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	EO-230807.exe
Key created	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EO-230807.exe
Key queried	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	EO-230807.exe
Key queried	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	EO-230807.exe
Key created	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EO-230807.exe
Key created	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	EO-230807.exe
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EO-230807.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\linievist\unilateralerne.ini	EO-230807.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
2572	EO-230807.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2816	EO-230807.exe
2572	EO-230807.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	EO-230807.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EO-230807.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2816	EO-230807.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2572	EO-230807.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2816 wrote to memory of 2572	2816	EO-230807.exe	31
PID 2816 wrote to memory of 2572	2816	EO-230807.exe	31
PID 2816 wrote to memory of 2572	2816	EO-230807.exe	31
PID 2816 wrote to memory of 2572	2816	EO-230807.exe	31
PID 2816 wrote to memory of 2572	2816	EO-230807.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EO-230807.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EO-230807.exe

C:\Users\Admin\AppData\Local\Temp\EO-230807.exe
"C:\Users\Admin\AppData\Local\Temp\EO-230807.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2816
- C:\Users\Admin\AppData\Local\Temp\EO-230807.exe
  "C:\Users\Admin\AppData\Local\Temp\EO-230807.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:2572

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

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nsj6EFB.tmp\System.dll

Filesize
11KB

MD5
ee260c45e97b62a5e42f17460d406068

SHA1
df35f6300a03c4d3d3bd69752574426296b78695

SHA256
e94a1f7bcd7e0d532b660d0af468eb3321536c3efdca265e61f9ec174b1aef27

SHA512
a98f350d17c9057f33e5847462a87d59cbf2aaeda7f6299b0d49bb455e484ce4660c12d2eb8c4a0d21df523e729222bbd6c820bf25b081bc7478152515b414b3

Download Submit
memory/2572-63-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2572-2093-0x0000000036A10000-0x0000000036A5C000-memory.dmp

Filesize
304KB

Download
memory/2572-2095-0x0000000036C60000-0x0000000036D40000-memory.dmp

Filesize
896KB

Download
memory/2572-22-0x00000000774B0000-0x0000000077659000-memory.dmp

Filesize
1.7MB

Download
memory/2572-28-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2572-24-0x0000000000470000-0x00000000014D2000-memory.dmp

Filesize
16.4MB

Download
memory/2572-25-0x00000000014E0000-0x0000000003A8B000-memory.dmp

Filesize
37.7MB

Download
memory/2572-26-0x0000000000470000-0x00000000004D0000-memory.dmp

Filesize
384KB

Download
memory/2572-27-0x0000000036830000-0x00000000368C6000-memory.dmp

Filesize
600KB

Download
memory/2572-53-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2572-59-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2572-87-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2572-83-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2572-81-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2572-79-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2572-77-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2572-75-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2572-33-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2572-69-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2572-67-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2572-73-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2572-65-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2572-71-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2572-2092-0x0000000036980000-0x00000000369AC000-memory.dmp

Filesize
176KB

Download
memory/2572-61-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2572-57-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2572-55-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2572-51-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2572-49-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2572-47-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2572-45-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2572-43-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2572-41-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2572-39-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2572-37-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2572-35-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2572-31-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2572-29-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2572-85-0x0000000036830000-0x00000000368C1000-memory.dmp

Filesize
580KB

Download
memory/2816-20-0x00000000774B0000-0x0000000077659000-memory.dmp

Filesize
1.7MB

Download
memory/2816-18-0x0000000004070000-0x000000000661B000-memory.dmp

Filesize
37.7MB

Download
memory/2816-23-0x0000000004070000-0x000000000661B000-memory.dmp

Filesize
37.7MB

Download
memory/2816-19-0x00000000774B1000-0x00000000775B2000-memory.dmp

Filesize
1.0MB

Download