MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 8c63c1e28683c7aa90cb40df346fe1d5dbc3b2bd994cd883cd7e551518486098. 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: 13
| SHA256 hash: | 8c63c1e28683c7aa90cb40df346fe1d5dbc3b2bd994cd883cd7e551518486098 |
|---|---|
| SHA3-384 hash: | 31721da1e03a22a9bddb7ee281fea5dfb896f7a55d9bb5ad818c5c5d9f8285bba981abf943a6770cdc2ee1aa68f0b415 |
| SHA1 hash: | cc7e8c661cecd541b5134cf06011031dd164c58a |
| MD5 hash: | 601f2b22a16a96c9ddaae24e2c5611f2 |
| humanhash: | one-papa-network-hawaii |
| File name: | 601f2b22a16a96c9ddaae24e2c5611f2 |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 431'008 bytes |
| First seen: | 2023-07-12 03:39:41 UTC |
| Last seen: | 2023-07-12 04:51:24 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | b78ecf47c0a3e24a6f4af114e2d1f5de (300 x GuLoader, 23 x Formbook, 21 x RemcosRAT) |
| ssdeep | 6144:kC2guh2RGxfWgrfXQi12xMhtj3+z0N+Y9uVza:fY2sxuUfXB2xMfbsS+YsVza |
| Threatray | 1'401 similar samples on MalwareBazaar |
| TLSH | T1E794F185BA9CD5BBC9464A706EB2DEA9A335FD0D39111C07335C7B1D1EB3242A836D0E |
| TrID | 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.9% (.EXE) Win64 Executable (generic) (10523/12/4) 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) (4505/5/1) |
| File icon (PE): |  |
| dhash icon | b838b132e2f2f224 (2 x GuLoader) |
| Reporter |  zbetcheckin |
| Tags: | 32 exe GuLoader signed |
Code Signing Certificate
| Organisation: | |
|---|---|
| Issuer: | |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2022-08-24T02:05:44Z |
| Valid to: | 2025-08-23T02:05:44Z |
| Serial number: | 3ebf6dd84f518d477dd5cd22db06065458796238 |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 2e696b517fc657fdad0c4322e8833db4bdeea575390539e2fc2f19995bd041a7 |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
2
# of downloads :
273
Origin country :
FRVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
601f2b22a16a96c9ddaae24e2c5611f2
Verdict:
Malicious activity
Analysis date:
2023-07-12 03:42:48 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Creating a window
Creating a file
Creating a file in the %temp% subdirectories
Result
Malware family:
n/a
Score:
5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
control lolbin overlay packed shell32
Verdict:
Malicious
Labled as:
Trojan.Generic
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Unknown
Result
Threat name:
GuLoader
Detection:
malicious
Classification:
troj.evad
Score:
88 / 100
Signature
Antivirus detection for URL or domain
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected GuLoader
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2023-07-03 07:01:33 UTC
File Type:
PE (Exe)
Extracted files:
7
AV detection:
18 of 24 (75.00%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
cloudeye
Similar samples:
+ 1'391 additional samples on MalwareBazaar
Result
Malware family:
guloader
Score:
10/10
Tags:
family:guloader discovery downloader
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Checks installed software on the system
Checks QEMU agent file
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
681382f3134de5c6272a49dd13651c8c201b89c247b471191496e7335702fa59
MD5 hash:
2ae993a2ffec0c137eb51c8832691bcb
SHA1 hash:
98e0b37b7c14890f8a599f35678af5e9435906e1
SH256 hash:
8c63c1e28683c7aa90cb40df346fe1d5dbc3b2bd994cd883cd7e551518486098
MD5 hash:
601f2b22a16a96c9ddaae24e2c5611f2
SHA1 hash:
cc7e8c661cecd541b5134cf06011031dd164c58a
Malware family:
GuLoader
Verdict:
Malicious
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: | 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.
Web download
Delivery method
Distributed via web download
Comments
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