MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f79efc8a7b635cc8a56185f067d93b6a77cea63a7820d73068c7a6f45adc7626. 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


Intelligence 9 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f79efc8a7b635cc8a56185f067d93b6a77cea63a7820d73068c7a6f45adc7626
SHA3-384 hash: d144eb1e9219dc6704ed4ab16868da227f8f13a0e7e4a688e09c4a491a438829f7fbf2ab700a82f9dec7255e22848b0a
SHA1 hash: 3bd5cefcfdd9ed8977c8c68890391d7119e12fea
MD5 hash: 89e4e95a23dd7aa33c9afa7bea3a70d8
humanhash: moon-hot-nevada-comet
File name:MBRKiller.exe
Download: download sample
File size:12'800 bytes
First seen:2026-02-28 09:01:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash adabf252301b1bdb6f562574734ac07a
ssdeep 192:4laIicOesu8/0P2EWkzfPj6nY63Q5tfbgIsh:GAcHsud2kD633Y
TLSH T1EE422B4EFE218DFAE9ADC278883B014EF076B71AA35153CB276C50152FD17D06A1D6C9
TrID 33.1% (.EXE) Win64 Executable (generic) (6522/11/2)
25.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
10.4% (.ICL) Windows Icons Library (generic) (2059/9)
10.3% (.EXE) OS/2 Executable (generic) (2029/13)
10.1% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
Reporter Ling
Tags:exe Killmbr Malgent Trojan:Win64/Malgent!MSR


Avatar
CNGaoLing
This sample has been reviewed by Microsoft researchers and determined to be malware. (Trojan:Win64/Malgent!MSR)

KillMBR

Intelligence

File Origin
# of uploads :
1
# of downloads :
127
Origin country :
US US
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
MBRKiller.exe
Verdict:
No threats detected
Analysis date:
2026-02-28 06:31:00 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/fb1f9bc3-6251-41fb-8176-dac8cfb2e076

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/54976/
Verdict:
Malicious
Score:
95.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69a26c0cc950ab5d9ab2641e
Tags:
virus shell sage
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm killdisk microsoft_visual_cc
Link:
https://www.filescan.io/uploads/69a2af1510e80629d4f6690b/reports/fc6a24a9-9dd6-4920-bc01-e09697a41d61/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/f79efc8a7b635cc8a56185f067d93b6a77cea63a7820d73068c7a6f45adc7626
Verdict:
Malicious
File Type:
exe x64
Detections:
Trojan.Win64.KillMBR.ab
Link:
https://opentip.kaspersky.com/f79efc8a7b635cc8a56185f067d93b6a77cea63a7820d73068c7a6f45adc7626/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/2a328616-91d4-40fd-b543-6bfb0bd9f04a
Score:
56%
Verdict:
Susipicious
File Type:
PE
Link:
https://malprob.io/report/f79efc8a7b635cc8a56185f067d93b6a77cea63a7820d73068c7a6f45adc7626
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f79efc8a7b635cc8a56185f067d93b6a77cea63a7820d73068c7a6f45adc7626/
Verdict:
Clean
Link:
https://tip.neiki.dev/file/f79efc8a7b635cc8a56185f067d93b6a77cea63a7820d73068c7a6f45adc7626
Threat name:
Win64.Trojan.Malgent
Create hunting rule
Status:
Malicious
First seen:
2026-02-28 04:16:17 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
13 of 24 (54.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=66ppzct3mnomrjlbqxygpwj3nj345jr2paqnomdiy6tpiww4oyta._file
Result
Malware family:
n/a
Score:
  6/10
Tags:
bootkit defense_evasion persistence
Link:
https://tria.ge/reports/260228-kzjv5afy4g/
Behaviour
Kills process with taskkill
Suspicious use of WriteProcessMemory
Writes to the Master Boot Record (MBR)
Unpacked files
SH256 hash:
f79efc8a7b635cc8a56185f067d93b6a77cea63a7820d73068c7a6f45adc7626
MD5 hash:
89e4e95a23dd7aa33c9afa7bea3a70d8
SHA1 hash:
3bd5cefcfdd9ed8977c8c68890391d7119e12fea
Link:
https://www.unpac.me/results/5db1d121-6a11-4910-a897-839a436df01b/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f79efc8a7b635cc8a56185f067d93b6a77cea63a7820d73068c7a6f45adc7626

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
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Executable exe f79efc8a7b635cc8a56185f067d93b6a77cea63a7820d73068c7a6f45adc7626

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/54976/

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