MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 515c1b4a117c1d2e69ebdfa6de58dfabff86dbfdadb747cd1a0c71b0248dd6ae. 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: | 515c1b4a117c1d2e69ebdfa6de58dfabff86dbfdadb747cd1a0c71b0248dd6ae |
|---|---|
| SHA3-384 hash: | 594bd72b4b7948ff23d23b1ed86dfc5537d4c6e7e2adb87e7e5268ebc43f51d68060e56950940a6a04928a037b557555 |
| SHA1 hash: | 842a7bec65c381211d816c990487c6ee992f532c |
| MD5 hash: | 38d7219c13b81fa3788cae8e59536bb7 |
| humanhash: | alanine-arkansas-south-apart |
| File name: | 515c1b4a117c1d2e69ebdfa6de58dfabff86dbfdadb747cd1a0c71b0248dd6ae |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 1'189'584 bytes |
| First seen: | 2025-08-12 14:26:19 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 573bb7b41bc641bd95c0f5eec13c233b (23 x GuLoader, 13 x VIPKeylogger, 9 x XWorm) |
| ssdeep | 24576:9TAz2XR/IqCVIU3ALxvm3ZGXeLxw0E6fAVyCNQzaR:ps2XR/I5dOxO3ZBLKDwPO |
| Threatray | 288 similar samples on MalwareBazaar |
| TLSH | T1BA45DFE278E8B155E58CCFFD240674B24E67EE6A05D768092348BE2E337D52D93094F2 |
| 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 | 827169797979b9b1 (9 x XWorm, 5 x GuLoader) |
| Reporter |  adrian__luca |
| Tags: | exe GuLoader signed |
Code Signing Certificate
| Organisation: | Nooser |
|---|---|
| Issuer: | Nooser |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2025-03-04T07:10:23Z |
| Valid to: | 2026-06-07T07:10:23Z |
| Serial number: | 6fade83a3927ff6d9ad98bd48d5e63f2d3a65aa1 |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 64cb3ca0e688684ffc27e1705cc7335a80eff3fed69746383fbe99a12837d406 |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
1
# of downloads :
43
Origin country :
HUVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
515c1b4a117c1d2e69ebdfa6de58dfabff86dbfdadb747cd1a0c71b0248dd6ae.exe
Verdict:
Malicious activity
Analysis date:
2025-08-12 15:59:40 UTC
Tags:
pastebin xworm
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:
uloader virus nsis blic
Result
Verdict:
Clean
Maliciousness:
Behaviour
Creating a window
Searching for the window
Creating a file in the %AppData% subdirectories
Creating a file in the %temp% subdirectories
Sending a custom TCP request
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
adaptive-context installer microsoft_visual_cc obfuscated overlay signed similar-threat
Verdict:
Malicious
Labled as:
Trojan.Generic
Verdict:
Suspicious
Score:
96%
Verdict:
Malware
File Type:
PE
Gathering data
Verdict:
Malicious
Threat:
Family.XWORM
Threat name:
Win32.Trojan.GuLoader
Status:
Malicious
First seen:
2025-07-24 04:35:41 UTC
File Type:
PE (Exe)
Extracted files:
14
AV detection:
22 of 36 (61.11%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
cloudeye
Similar samples:
+ 278 additional samples on MalwareBazaar
Result
Malware family:
xworm
Score:
10/10
Tags:
family:xworm discovery rat trojan
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
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
Legitimate hosting services abused for malware hosting/C2
Loads dropped DLL
Detect Xworm Payload
Xworm
Xworm family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
515c1b4a117c1d2e69ebdfa6de58dfabff86dbfdadb747cd1a0c71b0248dd6ae
MD5 hash:
38d7219c13b81fa3788cae8e59536bb7
SHA1 hash:
842a7bec65c381211d816c990487c6ee992f532c
SH256 hash:
8b4c47c4cf5e76ec57dd5a050d5acd832a0d532ee875d7b44f6cdaf68f90d37c
MD5 hash:
9b38a1b07a0ebc5c7e59e63346ecc2db
SHA1 hash:
97332a2ffcf12a3e3f27e7c05213b5d7faa13735
Please note that we are no longer able to provide a coverage score for Virus Total.
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: | Sus_Obf_Enc_Spoof_Hide_PE |
|---|---|
| Author: | XiAnzheng |
| Description: | Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP) |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Comments
Login required
You need to login to in order to write a comment. Login with your abuse.ch account.