MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 f4b1dca023b3ba4928b6ea5fecee9a09c4c3d8fa4c3b21da5f600dc2c6d3b182. 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: 12
| SHA256 hash: | f4b1dca023b3ba4928b6ea5fecee9a09c4c3d8fa4c3b21da5f600dc2c6d3b182 |
|---|---|
| SHA3-384 hash: | 304849154ed807e948e978c5add8fb80c2d8ffe18a0c6002f96e4241945b0fe6d2af99fe142ab7f2d2c78cd619070a84 |
| SHA1 hash: | c2ef50abaa02ff10132f89a409d8f8bc5c208f69 |
| MD5 hash: | 30974e96d49ef2ef73a34295ec7d01c2 |
| humanhash: | harry-robert-oven-summer |
| File name: | Notifikations122.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 492'088 bytes |
| First seen: | 2025-11-10 09:00:27 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 3abe302b6d9a1256e6a915429af4ffd2 (299 x GuLoader, 39 x Formbook, 25 x Loki) |
| ssdeep | 12288:qDScuw29W8OsgPXgAxaTCvH6GbIYcWhTo1:Xcu5WHNPwDTCPL5c91 |
| TLSH | T1D4A412573F46F5B6CADF92704823AE734735BDF520000A6B9B317F987872A85486F249 |
| TrID | 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.9% (.EXE) Win64 Executable (generic) (10522/11/4) 9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 6.8% (.EXE) Win32 Executable (generic) (4504/4/1) |
| Magika | pebin |
| dhash icon | 9eb661aaa28aa200 (3 x GuLoader) |
| Reporter |  adrian__luca |
| Tags: | exe GuLoader signed |
Code Signing Certificate
| Organisation: | Macarize |
|---|---|
| Issuer: | Macarize |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2025-10-10T10:33:32Z |
| Valid to: | 2026-10-10T10:33:32Z |
| Serial number: | 40881bd14b2e6ddfa792ebea3d4ff4eadeba060e |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | d8c297930ebd6b477c9749f90da942ac98380035e08ec5ec0e8e7923af07fd78 |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
1
# of downloads :
164
Origin country :
HUVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Notifikations122.exe
Verdict:
Malicious activity
Analysis date:
2025-11-10 09:10:43 UTC
Tags:
stealer crypto-regex phantom telegram exfiltration evasion ims-api generic
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Detection(s):
Verdict:
Malicious
Score:
92.5%
Tags:
injection obfusc virus
Result
Verdict:
Clean
Maliciousness:
Behaviour
Creating a window
Searching for the window
Creating a file
Delayed reading of the file
Creating a file in the %temp% subdirectories
DNS request
Connection attempt
Unauthorized injection to a recently created process
Restart of the analyzed sample
Gathering data
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-11-04T04:10:00Z UTC
Last seen:
2025-11-12T06:23:00Z UTC
Hits:
~1000
Detections:
Trojan.NSIS.Makoob.sbb Trojan.NSIS.Makoob.sba HEUR:Trojan.Win32.GuLoader.gen Trojan-Downloader.Win32.Minix.sb Trojan.Win32.Guloader.sb
Verdict:
Suspicious
Score:
91%
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.GULOADER
Threat name:
Win32.Trojan.GuLoader
Status:
Malicious
First seen:
2025-11-04 13:26:46 UTC
File Type:
PE (Exe)
Extracted files:
21
AV detection:
18 of 24 (75.00%)
Threat level:
5/5
Detection(s):
Malicious file
Result
Malware family:
phantom_stealer
Score:
10/10
Tags:
family:guloader family:phantom_stealer collection discovery downloader installer persistence spyware stealer
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
outlook_office_path
outlook_win_path
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Accesses Microsoft Outlook profiles
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Loads dropped DLL
Reads user/profile data of web browsers
Detects PhantomStealer payload
Guloader family
Guloader,Cloudeye
PhantomStealer
Phantom_stealer family
Malware Config
C2 Extraction:
https://api.telegram.org/bot8214019860:AAHYji4Eg7s833OQhYJMlsSXK7gZEPMJtGI/sendMessage?chat_id=7564898554
Verdict:
Malicious
Tags:
loader guloader
YARA:
NSIS_GuLoader_July_2024
Unpacked files
SH256 hash:
f4b1dca023b3ba4928b6ea5fecee9a09c4c3d8fa4c3b21da5f600dc2c6d3b182
MD5 hash:
30974e96d49ef2ef73a34295ec7d01c2
SHA1 hash:
c2ef50abaa02ff10132f89a409d8f8bc5c208f69
SH256 hash:
3cdf3e24c87666ed5c582b8b028c01ee6ac16d5a9b8d8d684ae67605376786ea
MD5 hash:
ab101f38562c8545a641e95172c354b4
SHA1 hash:
ec47ac5449f6ee4b14f6dd7ddde841a3e723e567
SH256 hash:
98160b4ebb4870f64b13a45f5384b693614ae5ca1b5243edf461ca0b5a6d479a
MD5 hash:
de3558ce305e32f742ff25b697407fec
SHA1 hash:
d55c50c546001421647f2e91780c324dbb8d6ebb
SH256 hash:
a1390a78533c47e55cc364e97af431117126d04a7faed49390210ea3e89dd0e1
MD5 hash:
fbe295e5a1acfbd0a6271898f885fe6a
SHA1 hash:
d6d205922e61635472efb13c2bb92c9ac6cb96da
Malware family:
GuLoader
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | Ins_NSIS_Buer_Nov_2020_1 |
|---|---|
| Author: | Arkbird_SOLG |
| Description: | Detect NSIS installer used for Buer loader |
| 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.
Malspam
Delivery method
Distributed via e-mail attachment
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