MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 5f78496952c55b06d8bbbe3e8dd08dfff334dcf25244da3c2ac2ba3a12f65b59. 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: 14
| SHA256 hash: | 5f78496952c55b06d8bbbe3e8dd08dfff334dcf25244da3c2ac2ba3a12f65b59 |
|---|---|
| SHA3-384 hash: | f143e0bfd88f632303332ac9e0bc42f529d440848ed3c8455c0fb5890550963d4fdfbd5815a4ea05bcb83434b0c00b2f |
| SHA1 hash: | d34903d9ba746d08c5c681b8a23667cee4799759 |
| MD5 hash: | 5c5651a86d7e9d4a7115f0c3a9c14a7b |
| humanhash: | sodium-social-bluebird-missouri |
| File name: | 5f78496952c55b06d8bbbe3e8dd08dfff334dcf25244da3c2ac2ba3a12f65b59 |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 1'396'352 bytes |
| First seen: | 2025-10-10 06:26:22 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | b34f154ec913d2d2c435cbd644e91687 (592 x GuLoader, 130 x RemcosRAT, 84 x EpsilonStealer) |
| ssdeep | 24576:1lKUj2C0V5h0aTKNzVcmMAyz2wfrdRfU+lv+mY4ZwRZfl:GUj2CiEoF+ya4rd2KvXwRH |
| Threatray | 1'966 similar samples on MalwareBazaar |
| TLSH | T1435523A03BC1C932DA5A1A78D43416F74B26BE21F54C9F0B4690FD257B34285BA1B7F2 |
| 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 |
| Reporter |  adrian__luca |
| Tags: | exe GuLoader |
Intelligence
File Origin
# of uploads :
1
# of downloads :
94
Origin country :
HUVendor Threat Intelligence
Malware family:
remcos
ID:
1
File name:
scan.exe_
Verdict:
Malicious activity
Analysis date:
2025-09-15 07:29:26 UTC
Tags:
rat remcos remote stealer mpress
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Verdict:
Malicious
Score:
95.7%
Tags:
injection uloader virus nsis
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Creating a file in the %temp% subdirectories
Сreating synchronization primitives
Searching for the window
Creating a file
Creating a file in the %AppData% subdirectories
Delayed reading of the file
Restart of the analyzed sample
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
installer microsoft_visual_cc obfuscated overlay packed packed packer_detected signed
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-12T00:31:00Z UTC
Last seen:
2025-10-12T04:44:00Z UTC
Hits:
~10000
Verdict:
Malicious
Score:
84%
Verdict:
Malware
File Type:
PE
Gathering data
Threat name:
Win32.Trojan.GuLoader
Status:
Malicious
First seen:
2025-09-12 04:00:16 UTC
AV detection:
13 of 24 (54.17%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
cloudeye
Similar samples:
+ 1'956 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
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in System32 directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Legitimate hosting services abused for malware hosting/C2
Loads dropped DLL
Guloader family
Guloader,Cloudeye
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
5f78496952c55b06d8bbbe3e8dd08dfff334dcf25244da3c2ac2ba3a12f65b59
MD5 hash:
5c5651a86d7e9d4a7115f0c3a9c14a7b
SHA1 hash:
d34903d9ba746d08c5c681b8a23667cee4799759
SH256 hash:
b17c1450acbb125639d4e7bf4ba668b0f60044428a9772d337d51b0865aee5c9
MD5 hash:
ad3b06ce8f12b55072e7ce4a20637716
SHA1 hash:
428debec7aac1890a5837cc875f46847efea08aa
SH256 hash:
b21c43d24c0daa4431cc756a897a18b4ef6a6c10c40f4fc6cdde4a080a2eedd9
MD5 hash:
736b9b6000a5715d78297a902160e93b
SHA1 hash:
746e216b078e4a6f2ee1cf994cd324153838056a
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 |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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