MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 258c637a49e90a8ed3ebb9b9bbb4b0edd1f6d884d8cab83de7907a67d7ec3e36. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.
Database Entry
GuLoader
Vendor detections: 14
| SHA256 hash: | 258c637a49e90a8ed3ebb9b9bbb4b0edd1f6d884d8cab83de7907a67d7ec3e36 |
|---|---|
| SHA3-384 hash: | 27723784431afc8b335219082e34ca11e1ff5b6d240426a543f6e98ef22b742dd1bcb232cacddf29b0b1402f539ba39f |
| SHA1 hash: | 25db542e7c2647a82f25f8ed566a05c0674f7ff1 |
| MD5 hash: | 48e2ceba623541351a4e3dcd3ae5197a |
| humanhash: | mountain-jig-vermont-happy |
| File name: | Betoners.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 835'328 bytes |
| First seen: | 2026-03-09 12:49:37 UTC |
| Last seen: | 2026-03-09 13:31:58 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | e2a592076b17ef8bfb48b7e03965a3fc (401 x GuLoader, 59 x RemcosRAT, 45 x AgentTesla) |
| ssdeep | 12288:pkIeE7wnQ7vovjN+dDdABfY9X7YAcQixBSeNUea:1eE7wnnQX7YnxB6e |
| TLSH | T1C105AE1FD72089D6D51D8DB4C9BBD3F171B02EE980FACB4ABD5DAA59843078A323D604 |
| TrID | 50.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 10.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 10.5% (.EXE) Win64 Executable (generic) (6522/11/2) 8.1% (.EXE) Win16 NE executable (generic) (5038/12/1) 7.2% (.EXE) Win32 Executable (generic) (4504/4/1) |
| Magika | pebin |
| dhash icon | cccccccccccccccc (8 x AgentTesla, 4 x Formbook, 2 x PureCrypter) |
| Reporter |  James_inthe_box |
| Tags: | exe GuLoader signed |
Code Signing Certificate
| Organisation: | Skirled |
|---|---|
| Issuer: | Skirled |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2026-02-18T07:16:03Z |
| Valid to: | 2027-02-18T07:16:03Z |
| Serial number: | 15591297cb2f3cdcda48a3ecbff7c06cd2dd137e |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 4d6c971175aab5dc402989d05d13710314fc0f32b173a7525efaec18829b52d7 |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
2
# of downloads :
176
Origin country :
USVendor Threat Intelligence
Malware configuration found for:
GuLoader
NSIS
Details
GuLoader
an XOR decryption key and an extracted component
NSIS
extracted archive contents
Malware family:
n/a
ID:
1
File name:
Betoners.exe
Verdict:
Malicious activity
Analysis date:
2026-03-09 12:51:48 UTC
Tags:
snake keylogger evasion telegram stealer spyware ims-api generic
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Verdict:
Malicious
Score:
70%
Tags:
injection obfusc crypt
Verdict:
Malicious
Labled as:
Trojan.Generic
Verdict:
Malicious
File Type:
exe x32
Detections:
Trojan.NSIS.Makoob.sbb HEUR:Trojan-Downloader.Win32.Minix.gen Trojan-Downloader.Win32.Minix.sb Trojan.Win32.Guloader.sb Trojan.NSIS.Makoob.sbe
Malware family:
NSIS
Verdict:
Unknown
Score:
83%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable NSIS Installer PE (Portable Executable) PE File Layout Win 32 Exe x86
Verdict:
Malicious
Threat:
Family.SNAKE
Threat name:
Win32.Trojan.Guloader
Status:
Suspicious
First seen:
2026-03-03 23:26:42 UTC
File Type:
PE (Exe)
Extracted files:
17
AV detection:
15 of 24 (62.50%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
vipkeylogger
Score:
10/10
Tags:
family:vipkeylogger collection discovery keylogger spyware stealer
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Browser Information Discovery
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Accesses Microsoft Outlook profiles
Contacts third-party web service commonly abused for C2
Looks up external IP address via web service
Loads dropped DLL
Reads user/profile data of local email clients
Reads user/profile data of web browsers
VIPKeylogger
Vipkeylogger family
Malware Config
C2 Extraction:
https://api.telegram.org/bot8729572560:AAH7-pGiLevApfXHCGKQfSyCpF9fVTqxN9Q/sendMessage?chat_id=8277275661
Unpacked files
SH256 hash:
258c637a49e90a8ed3ebb9b9bbb4b0edd1f6d884d8cab83de7907a67d7ec3e36
MD5 hash:
48e2ceba623541351a4e3dcd3ae5197a
SHA1 hash:
25db542e7c2647a82f25f8ed566a05c0674f7ff1
SH256 hash:
bd046e6497b304e4ea4ab102cab2b1f94ce09bde0eebba4c59942a732679e4eb
MD5 hash:
17ed1c86bd67e78ade4712be48a7d2bd
SHA1 hash:
1cc9fe86d6d6030b4dae45ecddce5907991c01a0
Malware family:
GuLoader
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
YARA Signatures
MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.
| Rule name: | Detect_NSIS_Nullsoft_Installer |
|---|---|
| Author: | Obscurity Labs LLC |
| Description: | Detects NSIS installers by .ndata section + NSIS header string |
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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