guloader | f7d5942d223c5bf276d9d1a0d4fcbabc78f3c777d8d2d0465865932fdceeda8e

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20250207-en
resource tags

arch:x64arch:x86image:win7-20250207-enlocale:en-usos:windows7-x64system
submitted
26/03/2025, 18:19

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General

Target

Thaler- Bau-2503477.exe
Size

518KB
MD5

5aae7e9a3faa0901088b43378653f55b
SHA1

64871a2169f880c841f13871d997d2e3aae9ecc1
SHA256

20f3f526fbe016d6a3a5c2531affd5bc7bb81c0bc686f30ed2ecc27408a140b2
SHA512

4cf432300ae0a4c06dd57e53d7c36a42663c7e0104452a679b75c0016716202446c53f45d6748caf7dab01aaeadd5e183009db32b8d0a3f4b407dfed16c5c7c0
SSDEEP

12288:nDGfx30gy32goNMOeRiowzxOpcfqFR7UKd4yW2j9EDq10ZM3:830gS2goWFRoG9NdF9Eoiw

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
3048	Thaler- Bau-2503477.exe
3048	Thaler- Bau-2503477.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 opened	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Thaler- Bau-2503477.exe
Key created	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Thaler- Bau-2503477.exe
Key opened	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Thaler- Bau-2503477.exe
Key queried	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Thaler- Bau-2503477.exe
Key opened	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Thaler- Bau-2503477.exe
Key queried	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Thaler- Bau-2503477.exe
Key created	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Thaler- Bau-2503477.exe
Key queried	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Thaler- Bau-2503477.exe
Key queried	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Thaler- Bau-2503477.exe
Key opened	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Thaler- Bau-2503477.exe
Key created	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Thaler- Bau-2503477.exe
Key opened	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Thaler- Bau-2503477.exe
Key created	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	Thaler- Bau-2503477.exe
Key created	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Thaler- Bau-2503477.exe
Key queried	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	Thaler- Bau-2503477.exe
Key queried	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	Thaler- Bau-2503477.exe
Key created	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Thaler- Bau-2503477.exe
Key created	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	Thaler- Bau-2503477.exe
Key created	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Thaler- Bau-2503477.exe
Key queried	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Thaler- Bau-2503477.exe
Key created	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Thaler- Bau-2503477.exe
Key created	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	Thaler- Bau-2503477.exe
Key queried	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	Thaler- Bau-2503477.exe
Key opened	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Thaler- Bau-2503477.exe
Key created	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	Thaler- Bau-2503477.exe
Key queried	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Thaler- Bau-2503477.exe
Key created	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Thaler- Bau-2503477.exe
Key queried	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	Thaler- Bau-2503477.exe
Key created	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Thaler- Bau-2503477.exe
Key queried	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Thaler- Bau-2503477.exe
Key opened	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Thaler- Bau-2503477.exe
Key created	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Thaler- Bau-2503477.exe
Key queried	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Thaler- Bau-2503477.exe
Key queried	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Thaler- Bau-2503477.exe
Key queried	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Thaler- Bau-2503477.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\linievist\unilateralerne.ini	Thaler- Bau-2503477.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
2492	Thaler- Bau-2503477.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
3048	Thaler- Bau-2503477.exe
2492	Thaler- Bau-2503477.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	Thaler- Bau-2503477.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Thaler- Bau-2503477.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3048	Thaler- Bau-2503477.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2492	Thaler- Bau-2503477.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3048 wrote to memory of 2492	3048	Thaler- Bau-2503477.exe	31
PID 3048 wrote to memory of 2492	3048	Thaler- Bau-2503477.exe	31
PID 3048 wrote to memory of 2492	3048	Thaler- Bau-2503477.exe	31
PID 3048 wrote to memory of 2492	3048	Thaler- Bau-2503477.exe	31
PID 3048 wrote to memory of 2492	3048	Thaler- Bau-2503477.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Thaler- Bau-2503477.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Thaler- Bau-2503477.exe

C:\Users\Admin\AppData\Local\Temp\Thaler- Bau-2503477.exe
"C:\Users\Admin\AppData\Local\Temp\Thaler- Bau-2503477.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:3048
- C:\Users\Admin\AppData\Local\Temp\Thaler- Bau-2503477.exe
  "C:\Users\Admin\AppData\Local\Temp\Thaler- Bau-2503477.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:2492

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\nsoB83A.tmp\System.dll

Filesize
11KB

MD5
ee260c45e97b62a5e42f17460d406068

SHA1
df35f6300a03c4d3d3bd69752574426296b78695

SHA256
e94a1f7bcd7e0d532b660d0af468eb3321536c3efdca265e61f9ec174b1aef27

SHA512
a98f350d17c9057f33e5847462a87d59cbf2aaeda7f6299b0d49bb455e484ce4660c12d2eb8c4a0d21df523e729222bbd6c820bf25b081bc7478152515b414b3

Download Submit
memory/2492-50-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/2492-70-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/2492-2098-0x00000000355D0000-0x00000000356B0000-memory.dmp

Filesize
896KB

Download
memory/2492-23-0x0000000077880000-0x0000000077A29000-memory.dmp

Filesize
1.7MB

Download
memory/2492-2093-0x00000000326B0000-0x00000000326DC000-memory.dmp

Filesize
176KB

Download
memory/2492-25-0x00000000014E0000-0x0000000002335000-memory.dmp

Filesize
14.3MB

Download
memory/2492-26-0x0000000077880000-0x0000000077A29000-memory.dmp

Filesize
1.7MB

Download
memory/2492-24-0x0000000000470000-0x00000000014D2000-memory.dmp

Filesize
16.4MB

Download
memory/2492-27-0x0000000000470000-0x00000000004D0000-memory.dmp

Filesize
384KB

Download
memory/2492-28-0x0000000035260000-0x00000000352F8000-memory.dmp

Filesize
608KB

Download
memory/2492-34-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/2492-32-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/2492-30-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/2492-29-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/2492-36-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/2492-38-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/2492-40-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/2492-42-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/2492-44-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/2492-46-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/2492-52-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/2492-2094-0x0000000035310000-0x000000003535C000-memory.dmp

Filesize
304KB

Download
memory/2492-88-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/2492-54-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/2492-56-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/2492-58-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/2492-60-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/2492-62-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/2492-64-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/2492-66-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/2492-68-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/2492-48-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/2492-72-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/2492-76-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/2492-74-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/2492-78-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/2492-80-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/2492-82-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/2492-84-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/2492-86-0x0000000035260000-0x00000000352F1000-memory.dmp

Filesize
580KB

Download
memory/3048-18-0x0000000004020000-0x0000000004E75000-memory.dmp

Filesize
14.3MB

Download
memory/3048-20-0x0000000077880000-0x0000000077A29000-memory.dmp

Filesize
1.7MB

Download
memory/3048-22-0x0000000004020000-0x0000000004E75000-memory.dmp

Filesize
14.3MB

Download
memory/3048-19-0x0000000077881000-0x0000000077982000-memory.dmp

Filesize
1.0MB

Download