MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7fb1790f59d720733905f8f3540887826b910830acd5753c917af89a3f80ef88. 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


Mirai


Vendor detections: 8


Intelligence 8 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7fb1790f59d720733905f8f3540887826b910830acd5753c917af89a3f80ef88
SHA3-384 hash: 1fd93237b905aeeb8b5832815cec813158176d6dc9b7914d96d0ede8dc0c0ad72ff36a2b03866ab09e284c917edc9e0f
SHA1 hash: ba89f9846233bcb5d1ee4fe92e41f57b008816c2
MD5 hash: ca34a320fd7f9781a94b9f6312aa71fb
humanhash: ink-jupiter-west-fruit
File name:nklsh4
Download: download sample
Signature Mirai
Create hunting rule
File size:70'844 bytes
First seen:2025-12-27 19:49:40 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:4aRwtE1skRjDW3e3tJzSUsXDiU8C1/9DHKTAbVR:4iTsggenXsTiU8UVDqTA
TLSH T1DB639D66CC6A99D8C54C9674ACF08B750B53A500C6571EBB4ACBC9A28003DECF64E7F9
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 mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
74
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.31075.LX.BOT.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7755770-0
Create hunting rule

Unix.Trojan.Mirai-9885259-0
Create hunting rule

Unix.Trojan.Mirai-10008934-0
Create hunting rule

Unix.Trojan.Gafgyt-6735924-0
Create hunting rule

Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/6950387ee126b9ff43935b75/reports/8244e87b-ecfb-4afa-a0fa-e06d8c020989/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-27T16:48:00Z UTC
Last seen:
2025-12-27T17:59:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/7fb1790f59d720733905f8f3540887826b910830acd5753c917af89a3f80ef88/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/342fac31-9c57-48b9-9174-ed20f3236a80
Behavior Graph:
Download SVG
%3 guuid=0017c11d-1900-0000-917c-12e74e0b0000 pid=2894 /usr/bin/sudo guuid=a7c6bc20-1900-0000-917c-12e7530b0000 pid=2899 /tmp/sample.bin guuid=0017c11d-1900-0000-917c-12e74e0b0000 pid=2894->guuid=a7c6bc20-1900-0000-917c-12e7530b0000 pid=2899 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/da60450c-60bf-4350-8a42-c5d8926af374
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
60 / 100
Link:
https://www.joesandbox.com/analysis/1840474
Signature
Connects to many IPs within the same subnet mask (likely port scanning)
Multi AV Scanner detection for submitted file
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1840474 Sample: nklsh4.elf Startdate: 27/12/2025 Architecture: LINUX Score: 60 18 183.103.105.11, 23 KIXS-AS-KRKoreaTelecomKR Korea Republic of 2->18 20 183.103.105.15, 23 KIXS-AS-KRKoreaTelecomKR Korea Republic of 2->20 22 100 other IPs or domains 2->22 24 Multi AV Scanner detection for submitted file 2->24 26 Yara detected Mirai 2->26 28 Connects to many IPs within the same subnet mask (likely port scanning) 2->28 8 nklsh4.elf 2->8         started        10 dash rm 2->10         started        12 dash rm 2->12         started        signatures3 process4 process5 14 nklsh4.elf 8->14         started        process6 16 nklsh4.elf 14->16         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/7fb1790f59d720733905f8f3540887826b910830acd5753c917af89a3f80ef88
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/7fb1790f59d720733905f8f3540887826b910830acd5753c917af89a3f80ef88/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-27 19:50:24 UTC
File Type:
ELF32 Little (Exe)
AV detection:
13 of 24 (54.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=p6yxsd2z24qhgoif7dzvicehqjvzccbqvtkxkperpl4jup4a56ea._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Link:
https://tria.ge/reports/251227-yl61dsxndj/
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-7755770-0
YARA:
n/a
Link:
https://app.threat.zone/submission/25b1fc01-8493-440f-bf06-3f7e48c2d885
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/7fb1790f59d720733905f8f3540887826b910830acd5753c917af89a3f80ef88

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:unixredflags3
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags

File information

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

Web download

Mirai

elf 7fb1790f59d720733905f8f3540887826b910830acd5753c917af89a3f80ef88

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3740370/
  
Delivery method
Distributed via web download

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