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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f4c91ae15bb4b0d39b8d3bd2c69a51366ac2379738b35618dc5c7773b899c0d0. 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: 7


Intelligence 7 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f4c91ae15bb4b0d39b8d3bd2c69a51366ac2379738b35618dc5c7773b899c0d0
SHA3-384 hash: 4231e4389ccd8dc9c488e3a8bff5fa342948b2e851bb1d8964a35b7a6696882ef8add8a75f9ff4580ea800bfd40f41bf
SHA1 hash: 0c7327da2fb1a7c3d35ec4af820f9cddb61c6140
MD5 hash: 0d32a25f181920d1d8350b64c50bc1ca
humanhash: florida-shade-sodium-quebec
File name:krmine-x86_64
Download: download sample
File size:166'276 bytes
First seen:2026-10-26 17:34:46 UTC
Last seen:Never
File type: elf
MIME type:application/x-sharedlib
ssdeep 3072:NrbxdHBWQ6vkdVgLJhaGj3lCPSJWdgbsnPwRYiQ/JL/N12hskH:NrXBksdVuz9CaJWdgwnYY1/JTn2CkH
TLSH T199F312CC4195CCF2C8D06CF9375B2DF8E2985E6D8C45AA9A171061CBA4B2367252D3F7
TrID 50.1% (.) ELF Executable and Linkable format (Linux) (4022/12)
49.8% (.O) ELF Executable and Linkable format (generic) (4000/1)
Magika elf
Reporter abuse_ch
Tags:elf UPX
File size (compressed) :166'276 bytes
File size (de-compressed) :383'656 bytes
Format:linux/amd64
Unpacked file: 347bf43a5afd6f77d8e2db8a0893b09d0d35cbe12c6a9de3c745c80a56043ae0

Intelligence

File Origin
# of uploads :
1
# of downloads :
75
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/34426752-23bf-4fa5-9f45-5815c08b6177/
Result
Verdict:
Clean
Maliciousness:

Behaviour
Runs as daemon
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
packed upx
Link:
https://www.filescan.io/uploads/6adf8f59ec2d457cdd28c79b/reports/917fb9c5-cd6d-413b-b9e5-2101fb687e61/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
UPX
Botnet:
unknown
Number of open files:
2
Number of processes launched:
2
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/f4c91ae15bb4b0d39b8d3bd2c69a51366ac2379738b35618dc5c7773b899c0d0
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/3e80c40d-84c0-4821-b8ef-2a076b9dee8a
Behavior Graph:
Download SVG
%3 guuid=a59c0e0b-1700-0000-137e-69c5c90e0000 pid=3785 /usr/bin/sudo guuid=29fd5610-1700-0000-137e-69c5d80e0000 pid=3800 /tmp/sample.bin mprotect-exec guuid=a59c0e0b-1700-0000-137e-69c5c90e0000 pid=3785->guuid=29fd5610-1700-0000-137e-69c5d80e0000 pid=3800 execve guuid=56156911-1700-0000-137e-69c5de0e0000 pid=3806 /tmp/sample.bin zombie guuid=29fd5610-1700-0000-137e-69c5d80e0000 pid=3800->guuid=56156911-1700-0000-137e-69c5de0e0000 pid=3806 clone
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/4f8bc319-92aa-4541-9736-d44da48d7a3b
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
52 / 100
Link:
https://www.joesandbox.com/analysis/1992117
Signature
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1992117 Sample: krmine-x86_64.elf Startdate: 26/10/2026 Architecture: LINUX Score: 52 10 Multi AV Scanner detection for submitted file 2->10 12 Sample is packed with UPX 2->12 6 krmine-x86_64.elf 2->6         started        process3 process4 8 krmine-x86_64.elf 6->8         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/f4c91ae15bb4b0d39b8d3bd2c69a51366ac2379738b35618dc5c7773b899c0d0
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f4c91ae15bb4b0d39b8d3bd2c69a51366ac2379738b35618dc5c7773b899c0d0/
Threat name:
Linux.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-10-25 02:40:47 UTC
File Type:
ELF64 Little (SO)
AV detection:
5 of 36 (13.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6tervyk3wsynhg4nhpjmngsrgzvmen4xhczvmgg4lr3xhoezydia._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery linux upx
Link:
https://tria.ge/reports/261026-v55pwsfv5t/
Behaviour
Reads runtime system information
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/f4c91ae15bb4b0d39b8d3bd2c69a51366ac2379738b35618dc5c7773b899c0d0

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:ELF_IoT_DVR_Botnet_Hama_UPX
Create hunting rule
Author:Serhii Kocherhan
Description:Detects packed and unpacked ELF IoT/DVR botnet variants targeting UPX compression structures and uncompressed code
Rule name:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

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

Web download

elf f4c91ae15bb4b0d39b8d3bd2c69a51366ac2379738b35618dc5c7773b899c0d0

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/4022020/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/4013837/

Comments