MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 8f1da96e55e6f50d07fb3dc64c12047697ae9128e63d4dbae80c14646d96e192. 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: 15
| SHA256 hash: | 8f1da96e55e6f50d07fb3dc64c12047697ae9128e63d4dbae80c14646d96e192 |
|---|---|
| SHA3-384 hash: | ed9780f65462da6c5b81f84373f2f4c0f5627903016a554e8c4b5c6347f05946747936ac668a674f576417e870132dc8 |
| SHA1 hash: | 94ab3db1927d7109f77e1b6c218f9cef5c8da4b0 |
| MD5 hash: | 250c8f4f3495c1b05572a48915224aae |
| humanhash: | california-comet-paris-burger |
| File name: | Justificante_transferencia_2025-11-05-14.24.38.684000.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 927'496 bytes |
| First seen: | 2026-05-20 17:05:16 UTC |
| Last seen: | 2026-05-20 17:57:12 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | b34f154ec913d2d2c435cbd644e91687 (592 x GuLoader, 130 x RemcosRAT, 84 x EpsilonStealer) |
| ssdeep | 24576:gN+O0nv35b7oMXiJ964/NOjzuHG91mRKvZUR:goO0v35b0MXm9RwpXSR |
| Threatray | 2'688 similar samples on MalwareBazaar |
| TLSH | T1CA152391A354EB73C4CA6535EC2F87FB9A0D5E11D4B85B0F2680FE08783530B996A3E1 |
| 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 |
| Reporter |  TomU |
| Tags: | exe GuLoader signed |
Code Signing Certificate
| Organisation: | Handelsgartneren |
|---|---|
| Issuer: | Handelsgartneren |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2025-11-04T05:03:02Z |
| Valid to: | 2026-11-04T05:03:02Z |
| Serial number: | 62f070a428c72b9aae784a1dd09bdac506b67bf8 |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 129a875a2d8e027800ffdd1ea483885251312e7c35085cb0c0230b8090aee50a |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
2
# of downloads :
102
Origin country :
CHVendor Threat Intelligence
Malware configuration found for:
GuLoader
NSIS
Details
GuLoader
an XOR decryption key and an extracted component
GuLoader
a c2 URL, a useragent string, and a string XOR key
NSIS
extracted archive contents
Malware family:
n/a
ID:
1
File name:
Justificante pago 5-11-2025 102453 (902 KB).msg
Verdict:
Malicious activity
Analysis date:
2025-11-05 09:37:33 UTC
Tags:
arch-exec attachments attc-arch evasion snake keylogger telegram stealer
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Verdict:
Malicious
Score:
92.5%
Tags:
injection obfusc virus
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Searching for the window
Creating a file in the %temp% subdirectories
Creating a file in the Windows subdirectories
Delayed reading of the file
Sending a custom TCP request
Unauthorized injection to a recently created process
Launching a process
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug base64 guloader installer installer installer-heuristic microsoft_visual_cc nsis packed reconnaissance signed
Verdict:
Malicious
Labled as:
Trojan.Generic
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-11-05T06:14:00Z UTC
Last seen:
2026-05-22T14:46:00Z UTC
Hits:
~100000
Detections:
BSS:Trojan.Win32.Generic Trojan-Downloader.Win32.Minix.sb HEUR:Trojan.Win32.GuLoader.gen Trojan.Win32.GuLoader.sb VHO:Trojan.Win32.GuLoader.gen Trojan.NSIS.Makoob.sbd Trojan.NSIS.Makoob.sbb Trojan.NSIS.Makoob.sba HEUR:Trojan.Win32.Makoob.gen
Verdict:
Unknown
Score:
83%
Verdict:
Malware
File Type:
PE
Gathering data
Verdict:
Malicious
Threat:
Family.SNAKE
Threat name:
Win32.Trojan.GuLoader
Status:
Malicious
First seen:
2025-11-05 10:29:42 UTC
File Type:
PE (Exe)
Extracted files:
42
AV detection:
24 of 36 (66.67%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
cloudeye
Similar samples:
+ 2'678 additional samples on MalwareBazaar
Result
Malware family:
vipkeylogger
Score:
10/10
Tags:
family:vipkeylogger collection discovery keylogger 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
Drops file in Windows directory
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
Family: VIPKeylogger
Malware Config
C2 Extraction:
https://api.telegram.org/bot8548916333:AAEtWytOtcm9WOnS8HVz3eDVi3rftfpMyNU/sendMessage?chat_id=7618581100
Unpacked files
SH256 hash:
8f1da96e55e6f50d07fb3dc64c12047697ae9128e63d4dbae80c14646d96e192
MD5 hash:
250c8f4f3495c1b05572a48915224aae
SHA1 hash:
94ab3db1927d7109f77e1b6c218f9cef5c8da4b0
SH256 hash:
5bee24fef5c0f643adc7ee02ccb6e80a72a4eb30d9d326023ac03f0ffbc4e624
MD5 hash:
376c1b784a3cca9d10ba4ca5d8cb55d2
SHA1 hash:
ad12f8ebab5b4b58eb7d5368469e82e2442b089f
SH256 hash:
f004c568d305cd95edbd704166fcd2849d395b595dff814bcc2012693527ac37
MD5 hash:
8b3830b9dbf87f84ddd3b26645fed3a0
SHA1 hash:
223bef1f19e644a610a0877d01eadc9e28299509
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.58
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 |
| Rule name: | VECT_Ransomware |
|---|---|
| Author: | Mustafa Bakhit |
| Description: | Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments. |
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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