MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 f98630a660fe803dcd45683a7bda303c22e2188e6ebcff6bbc4dd022b3b26cfa. 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
Threat unknown
Vendor detections: 9
| SHA256 hash: | f98630a660fe803dcd45683a7bda303c22e2188e6ebcff6bbc4dd022b3b26cfa |
|---|---|
| SHA3-384 hash: | e71399f4d8908a56c4bbb83d8b1b07984a80d0c42ac6dc777762e59788bdb4061129004b8216c77313f636c037194f86 |
| SHA1 hash: | eb2cbd3b1178c37eaa3a03fd09702aa4c8281092 |
| MD5 hash: | 96addc058726aae89cbe6beb14416499 |
| humanhash: | skylark-lemon-bacon-mountain |
| File name: | f98630a660fe803dcd45683a7bda303c22e2188e6ebcff6bbc4dd022b3b26cfa.bin |
| Download: | download sample |
| File size: | 27'441 bytes |
| First seen: | 2026-09-30 06:12:31 UTC |
| Last seen: | Never |
| File type: | zip |
| MIME type: | application/zip |
| ssdeep | 768:v4FcZqc0pCe0zLMai34tqet7TPwqSyI8NsdFy:gm4wvzL2MvTwq6BdFy |
| TLSH | T187C2E1D634C5E1A6D9A3080766A7ED427CD3E6D07B13DCC6D3017A481A806FB96C90F7 |
| Magika | zip |
| Reporter |  whack_sh |
| Tags: | zip |
Intelligence
File Origin
# of uploads :
1
# of downloads :
100
Origin country :
USFile Archive Information
This file archive contains 1 file(s), sorted by their relevance:
| File name: | Krotten.exe |
|---|---|
| File size: | 54'569 bytes |
| SHA256 hash: | e79f164ccc75a5d5c032b4c5a96d6ad7604faffb28afe77bc29b9173fa3543e4 |
| MD5 hash: | 87ccd6f4ec0e6b706d65550f90b0e3c7 |
| MIME type: | application/x-dosexec |
Vendor Threat Intelligence
Detection(s):
Result
Verdict:
Malicious
File Type:
PE File
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
dropper evasive explorer keylogger lolbin masm overlay packer ransomware reconnaissance rundll32
Verdict:
Malicious
File Type:
zip
First seen:
2026-09-22T17:37:00Z UTC
Last seen:
2026-09-25T19:49:00Z UTC
Hits:
~10
Score:
91%
Verdict:
Malware
File Type:
ARCHIVE
Verdict:
inconclusive
YARA:
3 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Zip Archive
Threat name:
Win32.Trojan.Krotten
Status:
Malicious
First seen:
2026-09-22 15:58:07 UTC
File Type:
Binary (Archive)
Extracted files:
4
AV detection:
32 of 36 (88.89%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
8/10
Tags:
adware defense_evasion discovery persistence spyware stealer
Behaviour
Modifies Control Panel
Modifies Internet Explorer settings
Modifies Internet Explorer start page
Modifies registry class
Suspicious use of AdjustPrivilegeToken
System policy modification
System Location Discovery: System Language Discovery
Drops file in Windows directory
Adds Run key to start application
Modifies WinLogon
Disables RegEdit via registry modification
Disables Task Manager via registry modification
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | CP_Script_Inject_Detector |
|---|---|
| Author: | DiegoAnalytics |
| Description: | Detects attempts to inject code into another process across PE, ELF, Mach-O binaries |
| Rule name: | Suspicious_Process |
|---|---|
| Author: | Security Research Team |
| Description: | Suspicious process creation |
| Rule name: | TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE |
|---|---|
| Author: | CYFARE |
| Description: | Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments |
| Reference: | https://cyfare.net/ |
| 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. |
| Rule name: | Win_Clipboard_Clipper_Thengavar |
|---|---|
| Author: | Thengavar |
| Description: | Detects malware manipulating the Windows clipboard for clipping or crypto stealing attacks |
| Rule name: | WIN_Clipper_Unknown_ClipboardHijack |
|---|---|
| Author: | Marjoriefort |
| Description: | DLL clipper (detournement presse-papiers crypto) : API clipboard completes + DLL compacte |
| Reference: | misses_archive 569 / cluster 282 DLL x 15360 o |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
zip f98630a660fe803dcd45683a7bda303c22e2188e6ebcff6bbc4dd022b3b26cfa
(this sample)
Delivery method
Distributed via web download
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