guloader | 6e24c014d9214bbf4f57d547a64e3b0e8655784094673d97f0cb61cf37470ec6

Analysis

max time kernel
148s
max time network
134s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
18-02-2025 12:03

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General

Target

Researches.exe
Size

985KB
MD5

c52b880eb8aaeee90ceddecd2b1ff4f8
SHA1

98f0771cfcd46fea300f8b93628e3be97a657401
SHA256

6e24c014d9214bbf4f57d547a64e3b0e8655784094673d97f0cb61cf37470ec6
SHA512

5c9369b339be3d6d1ad168b5c8ab3c8b5ce8092c120c178b2b54bb6a41c78db50b5b3b601a92a6d1274d372f6345c52d0a8c66be601b09c3c0c3cc12e99910dc
SSDEEP

24576:9GF+EgVm1pvmELwhbXcS8BMTwQhBpIrR0/wrSMaA4/5r0:osVm1pvRLwhbMFKThLK0vN0

Score

10^/10

guloader vipkeylogger collection discovery downloader keylogger spyware stealer

Malware Config

Extracted

Family

vipkeylogger

Credentials

Protocol: smtp
Host:
mail.novacitacor.pt
Port:
587
Username:
[email protected]
Password:
#Novasystem123#
Email To:
[email protected]

https://api.telegram.org/bot7502066508:AAGz5-yl79jZ7Tfefk024IrMFNLc6CGJF4I/sendMessage?chat_id=6978326966

Signatures

Guloader family
guloader
Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader
VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
stealer keylogger vipkeylogger
Vipkeylogger family
vipkeylogger

Loads dropped DLL 2 IoCs

pid	Process
3376	Researches.exe
3376	Researches.exe

Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-250031470-1197856012-2659781506-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Researches.exe
Key opened	\REGISTRY\USER\S-1-5-21-250031470-1197856012-2659781506-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Researches.exe
Key opened	\REGISTRY\USER\S-1-5-21-250031470-1197856012-2659781506-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Researches.exe

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

Web Service

T1102

flow	ioc
15	drive.google.com
16	drive.google.com

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
31	reallyfreegeoip.org
32	reallyfreegeoip.org
28	checkip.dyndns.org

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\revyviserne\Tilbed.ini	Researches.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
3908	Researches.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
3376	Researches.exe
3908	Researches.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\delarbejderne.nar	Researches.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\fremmder\ifaldne.lev	Researches.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	Researches.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Researches.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3908	Researches.exe
3908	Researches.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3376	Researches.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3908	Researches.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3376 wrote to memory of 3908	3376	Researches.exe	87
PID 3376 wrote to memory of 3908	3376	Researches.exe	87
PID 3376 wrote to memory of 3908	3376	Researches.exe	87
PID 3376 wrote to memory of 3908	3376	Researches.exe	87

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-250031470-1197856012-2659781506-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Researches.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-250031470-1197856012-2659781506-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Researches.exe

C:\Users\Admin\AppData\Local\Temp\Researches.exe
"C:\Users\Admin\AppData\Local\Temp\Researches.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3376
- C:\Users\Admin\AppData\Local\Temp\Researches.exe
  "C:\Users\Admin\AppData\Local\Temp\Researches.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3908

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

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

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Downloads

C:\ProgramData\Microsoft\Windows\Templates\dinosaurusserne.lnk

Filesize
1KB

MD5
20efea9a8b860414b72836109f3564ef

SHA1
1fd300f508093283de2dc041e5dce2192b1583c6

SHA256
2184733751a04f66bafbd830556da1c35090413cfaf76f8240ebb0ddba5d3f2a

SHA512
06bcb14af7ad13855ab6ce46881228e141656d816716edc9631ab4deede355b4040af07a49586ab8cfe578049dae2ac9707417ba10cf884d4acb618d98f274c8

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsz9107.tmp\System.dll

Filesize
11KB

MD5
b853d5d2361ade731e33e882707efc34

SHA1
c58b1aeabdf1cbb8334ef8797e7aceaa7a1cb6be

SHA256
f0cd96e0b6e40f92ad1aa0efacde833bae807b92fca19bf062c1cf8acf29484b

SHA512
8ea31d82ffa6f58dab5632fe72690d3a6db0be65aec85fc8a1f71626773c0974dcebefae17bcf67c4c56ef442545e985eea0b348ff6e4fc36740640092b08d69

Download Submit
memory/3376-312-0x0000000003180000-0x0000000004708000-memory.dmp

Filesize
21.5MB

Download
memory/3376-313-0x0000000077AB1000-0x0000000077BD1000-memory.dmp

Filesize
1.1MB

Download
memory/3376-314-0x0000000010004000-0x0000000010005000-memory.dmp

Filesize
4KB

Download
memory/3908-315-0x00000000016E0000-0x0000000002C68000-memory.dmp

Filesize
21.5MB

Download
memory/3908-316-0x00000000016E0000-0x0000000002C68000-memory.dmp

Filesize
21.5MB

Download
memory/3908-317-0x0000000077B38000-0x0000000077B39000-memory.dmp

Filesize
4KB

Download
memory/3908-318-0x0000000077B55000-0x0000000077B56000-memory.dmp

Filesize
4KB

Download
memory/3908-331-0x00000000016E0000-0x0000000002C68000-memory.dmp

Filesize
21.5MB

Download
memory/3908-333-0x0000000077AB1000-0x0000000077BD1000-memory.dmp

Filesize
1.1MB

Download
memory/3908-332-0x0000000000480000-0x00000000016D4000-memory.dmp

Filesize
18.3MB

Download
memory/3908-334-0x00000000016E0000-0x0000000002C68000-memory.dmp

Filesize
21.5MB

Download
memory/3908-335-0x0000000000480000-0x00000000004C4000-memory.dmp

Filesize
272KB

Download
memory/3908-336-0x0000000035C10000-0x00000000361B4000-memory.dmp

Filesize
5.6MB

Download
memory/3908-337-0x00000000361C0000-0x000000003625C000-memory.dmp

Filesize
624KB

Download
memory/3908-340-0x0000000036700000-0x00000000368C2000-memory.dmp

Filesize
1.8MB

Download
memory/3908-341-0x0000000036930000-0x0000000036980000-memory.dmp

Filesize
320KB

Download
memory/3908-343-0x00000000333F0000-0x0000000033482000-memory.dmp

Filesize
584KB

Download
memory/3908-344-0x00000000334A0000-0x00000000334AA000-memory.dmp

Filesize
40KB

Download