MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ab934d3021e6527af661d0983887bbc069255fe7dee7681ffc4d21204bf15703. 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: 10


Intelligence 10 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ab934d3021e6527af661d0983887bbc069255fe7dee7681ffc4d21204bf15703
SHA3-384 hash: fad95f62bc51b23590cb3adc2b2dcf21024088a0c477fde2a117a0a489a4ab1ecb59b6bd14b26a3e64b488e4cfcb9bea
SHA1 hash: 0a5ff027767d1d375cdcdefb1594ef594d42ea4f
MD5 hash: 872d4828dc20a5d661e34632679ebf10
humanhash: oxygen-bulldog-robert-hot
File name:arm.kok
Download: download sample
Signature Mirai
Create hunting rule
File size:108'024 bytes
First seen:2026-01-09 20:16:47 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:GVMLUKwzXHOp6ROxyj6tCmNbD5PRPDjwaCuBjrTj/OulEV4TfSrMKvJVfi:GVML6zGLxlXBPnrBjnNvYn6
TLSH T133B34B92FCC1DA12C6C522B7FB1E428D771747B8C3EA32029E15AF21278B52A0E7B551
telfhash t1d0f05cd1c2341eec63d6161545b873115afd713f672014be28a87e9f116249bb02492e
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 :
67
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.30455.LC.BadVar.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-10001386-0
Create hunting rule

Unix.Trojan.Mirai-10010127-0
Create hunting rule

Unix.Trojan.Mirai-10017351-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade mirai rust
Link:
https://www.filescan.io/uploads/6961626030368802bb7e6d23/reports/9d3567e2-0476-4d4f-b118-8b2bc60e82c1/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-01-09T18:24:00Z UTC
Last seen:
2026-01-10T00:21:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/ab934d3021e6527af661d0983887bbc069255fe7dee7681ffc4d21204bf15703/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/2b608a4f-0a2a-438b-8c5d-38750390a1dd
Behavior Graph:
Download SVG
%3 guuid=13c5d39f-1600-0000-3b9a-0bdcb10c0000 pid=3249 /usr/bin/sudo guuid=eb987da1-1600-0000-3b9a-0bdcb80c0000 pid=3256 /tmp/sample.bin guuid=13c5d39f-1600-0000-3b9a-0bdcb10c0000 pid=3249->guuid=eb987da1-1600-0000-3b9a-0bdcb80c0000 pid=3256 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f819c988-fd89-4a4a-b5ed-7ab94a61bebf
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1847623
Signature
Drops files in suspicious directories
Drops invisible ELF files
Executes the "crontab" command typically for achieving persistence
Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample reads /proc/mounts (often used for finding a writable filesystem)
Sample tries to persist itself using /etc/profile
Sample tries to persist itself using cron
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Terminates several processes with shell command 'killall'
Writes identical ELF files to multiple locations
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1847623 Sample: arm.kok.elf Startdate: 09/01/2026 Architecture: LINUX Score: 96 91 171.225.223.53, 80 VIETEL-AS-APViettelGroupVN Viet Nam 2->91 93 91.92.241.12, 48154, 6969 THEZONEBG Bulgaria 2->93 95 22 other IPs or domains 2->95 97 Multi AV Scanner detection for submitted file 2->97 11 arm.kok.elf 2->11         started        signatures3 process4 signatures5 115 Sample reads /proc/mounts (often used for finding a writable filesystem) 11->115 14 arm.kok.elf 11->14         started        process6 file7 83 /var/spool/cron/root, ASCII 14->83 dropped 85 /var/spool/cron/crontabs/root, ASCII 14->85 dropped 87 /root/.bashrc, ASCII 14->87 dropped 89 11 other files (10 malicious) 14->89 dropped 117 Sample tries to set files in /etc globally writable 14->117 119 Sample tries to persist itself using /etc/profile 14->119 121 Drops files in suspicious directories 14->121 123 4 other signatures 14->123 18 arm.kok.elf sh 14->18         started        20 arm.kok.elf sh 14->20         started        22 arm.kok.elf sh 14->22         started        24 19 other processes 14->24 signatures8 process9 process10 26 sh .monitor 18->26         started        28 sh S99backup0 20->28         started        30 sh S99backup1 22->30         started        32 sh S99backup2 24->32         started        34 sh S99network 24->34         started        36 sh cp 24->36         started        40 16 other processes 24->40 file11 42 .monitor 26->42         started        44 S99backup0 28->44         started        46 S99backup1 30->46         started        48 S99backup2 32->48         started        50 S99network 34->50         started        73 /usr/bin/.update, ELF 36->73 dropped 101 Writes identical ELF files to multiple locations 36->101 103 Drops invisible ELF files 36->103 105 Drops files in suspicious directories 36->105 75 /var/spool/cron/crontabs/tmp.q8erjh, ASCII 40->75 dropped 77 /var/log/.update, ELF 40->77 dropped 79 /var/jbx/shared/.update, ELF 40->79 dropped 81 /boot/.update, ELF 40->81 dropped 107 Sample deletes itself 40->107 109 Sample tries to persist itself using cron 40->109 111 Executes the "crontab" command typically for achieving persistence 40->111 113 Terminates several processes with shell command 'killall' 40->113 52 sh crontab 40->52         started        signatures12 process13 signatures14 63 97 other processes 42->63 55 S99backup0 .update 44->55         started        65 185 other processes 44->65 57 S99backup1 .update 46->57         started        67 183 other processes 46->67 59 S99backup2 .update 48->59         started        69 179 other processes 48->69 61 S99network .update 50->61         started        71 175 other processes 50->71 99 Executes the "crontab" command typically for achieving persistence 52->99 process15
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/ab934d3021e6527af661d0983887bbc069255fe7dee7681ffc4d21204bf15703
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ab934d3021e6527af661d0983887bbc069255fe7dee7681ffc4d21204bf15703/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-09 20:17:38 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=voju2mbb4zjhv5tb2cmdrb53ybuskx7h33twqh74juqsas7rk4bq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai
Link:
https://tria.ge/reports/260109-y2z7sag12h/
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-10001386-0
YARA:
n/a
Link:
https://app.threat.zone/submission/9c7c2aff-62df-4cb4-ae43-26e344717acf
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/ab934d3021e6527af661d0983887bbc069255fe7dee7681ffc4d21204bf15703

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:ach_202503_elf_Mirai
Create hunting rule
Author:abuse.ch
Description:Detects Mirai 'TSource' ELF files
Rule name:ELF_IoT_Persistence_Hunt
Create hunting rule
Author:4r4
Description:Hunts for ELF files with persistence and download capabilities
Rule name:ELF_Toriilike_persist
Create hunting rule
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:Linux_Generic_Threat_d94e1020
Create hunting rule
Author:Elastic Security
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 ab934d3021e6527af661d0983887bbc069255fe7dee7681ffc4d21204bf15703

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3749723/
  
Delivery method
Distributed via web download

Comments