MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 eb839d728c15bbb09bb2a0a5c5803c13095cb3e46d3faa4b39936bafd9543d58. 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: 11
| SHA256 hash: | eb839d728c15bbb09bb2a0a5c5803c13095cb3e46d3faa4b39936bafd9543d58 |
|---|---|
| SHA3-384 hash: | 2470efc27abc34dc2becedc219178d55ead4b61909c65da407a158363a9f7b44cf3642a83eb07ada16e860bb34bf81b4 |
| SHA1 hash: | 47bd445b34a44ffd984a5337be2335950fe4c74f |
| MD5 hash: | ab8b35ff2d89ee65964c3912f4994551 |
| humanhash: | beryllium-fish-pluto-massachusetts |
| File name: | eb839d728c15bbb09bb2a0a5c5803c13095cb3e46d3faa4b39936bafd9543d58 |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 1'262'632 bytes |
| First seen: | 2026-03-06 15:20:15 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 4f67aeda01a0484282e8c59006b0b352 (52 x GuLoader, 10 x VIPKeylogger, 9 x RemcosRAT) |
| ssdeep | 24576:4oLLF0f536w/LmpQwz5/vXBNyZ0UH40KVInwyyi0Mof81/ONZb:4QLFempQgBXfyZ5Y0krIDo01/O |
| TLSH | T11F452313B784D4DFE59552B2D793D2F95BB6FE08D428860B2B0D3F99303A1618B252B3 |
| 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 |  adrian__luca |
| Tags: | exe GuLoader signed |
Code Signing Certificate
| Organisation: | Iniquity |
|---|---|
| Issuer: | Iniquity |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2025-12-29T08:38:44Z |
| Valid to: | 2026-12-29T08:38:44Z |
| Serial number: | 38056edb87d0c82ad76d1eafd1f225e2feacc867 |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 3851e4991c87ee9ae6fb3d22d5e880e212293865cf54d3ba9d2b415d9cebb554 |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
1
# of downloads :
130
Origin country :
HUVendor Threat Intelligence
Malware configuration found for:
NSIS
Details
Malware family:
guloader
ID:
1
File name:
eb839d728c15bbb09bb2a0a5c5803c13095cb3e46d3faa4b39936bafd9543d58
Verdict:
Malicious activity
Analysis date:
2026-03-06 16:36:44 UTC
Tags:
guloader
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:
96.5%
Tags:
uloader androm virus nsis
Verdict:
Malicious
File Type:
exe x32
Verdict:
Suspicious
Score:
77%
Verdict:
Malware
File Type:
PE
Gathering data
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2026-02-23 07:11:20 UTC
File Type:
PE (Exe)
Extracted files:
20
AV detection:
17 of 24 (70.83%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
guloader
Score:
10/10
Tags:
family:guloader discovery downloader installer
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Loads dropped DLL
Guloader family
Guloader,Cloudeye
Unpacked files
SH256 hash:
eb839d728c15bbb09bb2a0a5c5803c13095cb3e46d3faa4b39936bafd9543d58
MD5 hash:
ab8b35ff2d89ee65964c3912f4994551
SHA1 hash:
47bd445b34a44ffd984a5337be2335950fe4c74f
SH256 hash:
fa4ab1d6f79fd677433a31ada7806373a789d34328da46ccb0449bbf347bd73e
MD5 hash:
3f176d1ee13b0d7d6bd92e1c7a0b9bae
SHA1 hash:
fe582246792774c2c9dd15639ffa0aca90d6fd0b
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.72
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: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DetectEncryptedVariants |
|---|---|
| Author: | Zinyth |
| Description: | Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded |
| Rule name: | Detect_SliverFox_String |
|---|---|
| Author: | huoji |
| Description: | Detect files is `SliverFox` malware |
| Rule name: | FreddyBearDropper |
|---|---|
| Author: | Dwarozh Hoshiar |
| Description: | Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip. |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | Ins_NSIS_Buer_Nov_2020_1 |
|---|---|
| Author: | Arkbird_SOLG |
| Description: | Detect NSIS installer used for Buer loader |
| Rule name: | pe_detect_tls_callbacks |
|---|
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | pe_no_import_table |
|---|---|
| Description: | Detect pe file that no import table |
| Rule name: | Sus_CMD_Powershell_Usage |
|---|---|
| Author: | XiAnzheng |
| Description: | May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP) |
| Rule name: | telebot_framework |
|---|---|
| Author: | vietdx.mb |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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