MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91fa90bc79f33d5dd9bf20fb175b57087157e416fed07ed2390c966592358218. 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 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 91fa90bc79f33d5dd9bf20fb175b57087157e416fed07ed2390c966592358218
SHA3-384 hash: de488277e1a5b35fc1b308061468658f9f4f1fe7b1f17cb9b94c38d95b52b0bf3d70211728fea443d88378e44c10f72e
SHA1 hash: 5b0cf7313635a2598d0fd7ccf3a6d045bfd54dc3
MD5 hash: cb0d9995e54537bb24052baa2cd27ea5
humanhash: pasta-pennsylvania-green-xray
File name:systemdd
Download: download sample
Signature Mirai
Create hunting rule
File size:173'960 bytes
First seen:2026-01-14 19:16:14 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:UJaByDuFPWrr/Q8verJXZ2scKw75SMFQI36mby3JrJIBxbwj:wAyeWrrQlsSOcJSmj
TLSH T198042906B9CCC4FCC895D0785BBEB136D921FC5D027CB15B2788AB222E4FE601B6DA55
telfhash t11951d1302ea53a4c31d7874ab35eed98f9b605111ee2b0a2af777dd4cd12bc40d960a7
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 upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 85a4bc45ce91a9a516217650d9c611b9c3e482832fc7c1be092ccd624d594f70
File size (compressed) :64'024 bytes
File size (de-compressed) :173'960 bytes
Format:linux/amd64
Packed file: 85a4bc45ce91a9a516217650d9c611b9c3e482832fc7c1be092ccd624d594f70

Intelligence

File Origin
# of uploads :
1
# of downloads :
105
Origin country :
NL NL
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
an XOR decryption key and at least a c2 socket address
Link:
https://research.acce.ciphertechsolutions.com/results/b80018c9-c4ec-42c9-b17b-1664bf46335a/
Detection(s):
Sanesecurity.Malware.28940.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30435.LC.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Siggen.9999-14.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7100807-0
Create hunting rule

Unix.Dropper.Mirai-7135897-0
Create hunting rule

Unix.Dropper.Mirai-7135901-0
Create hunting rule

Unix.Dropper.Mirai-7135909-0
Create hunting rule

Unix.Trojan.Mirai-7135916-0
Create hunting rule

Unix.Dropper.Mirai-7135918-0
Create hunting rule

Unix.Dropper.Mirai-7135954-0
Create hunting rule

Unix.Dropper.Mirai-7136016-0
Create hunting rule

Unix.Dropper.Mirai-7136028-0
Create hunting rule

Unix.Dropper.Mirai-7540662-0
Create hunting rule

Unix.Trojan.Mirai-8025795-0
Create hunting rule

Unix.Trojan.Mirai-10059006-0
Create hunting rule

Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/6967ebcdb5214ecba5efbddc/reports/48d636e2-d077-4939-a7c6-4ef6a947c4de/overview
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2026-01-14T17:30:00Z UTC
Last seen:
2026-01-14T20:34:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/91fa90bc79f33d5dd9bf20fb175b57087157e416fed07ed2390c966592358218/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/4237ee3f-6ad2-46b7-a92c-14dbe0f10a38
Behavior Graph:
Download SVG
%3 guuid=92a2e946-1900-0000-100f-883ff0090000 pid=2544 /usr/bin/sudo guuid=ed056c49-1900-0000-100f-883ff7090000 pid=2551 /tmp/sample.bin net guuid=92a2e946-1900-0000-100f-883ff0090000 pid=2544->guuid=ed056c49-1900-0000-100f-883ff7090000 pid=2551 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=ed056c49-1900-0000-100f-883ff7090000 pid=2551->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=8a1d9649-1900-0000-100f-883ff8090000 pid=2552 /tmp/sample.bin guuid=ed056c49-1900-0000-100f-883ff7090000 pid=2551->guuid=8a1d9649-1900-0000-100f-883ff8090000 pid=2552 clone guuid=fcee9a49-1900-0000-100f-883ff9090000 pid=2553 /tmp/sample.bin net send-data zombie guuid=ed056c49-1900-0000-100f-883ff7090000 pid=2551->guuid=fcee9a49-1900-0000-100f-883ff9090000 pid=2553 clone guuid=fcee9a49-1900-0000-100f-883ff9090000 pid=2553->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 533B d5466fdd-d2e6-50d9-9f3d-61d919bad8ae 143.20.185.225:80 guuid=fcee9a49-1900-0000-100f-883ff9090000 pid=2553->d5466fdd-d2e6-50d9-9f3d-61d919bad8ae send: 12B
Gathering data
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1850848
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Uses dynamic DNS services
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1850848 Sample: systemdd.elf Startdate: 14/01/2026 Architecture: LINUX Score: 76 17 lolzzmortex.duckdns.org 2->17 19 169.254.169.254, 80 USDOSUS Reserved 2->19 21 2 other IPs or domains 2->21 23 Malicious sample detected (through community Yara rule) 2->23 25 Antivirus / Scanner detection for submitted sample 2->25 27 Multi AV Scanner detection for submitted file 2->27 29 Yara detected Mirai 2->29 7 systemdd.elf 2->7         started        9 systemd snap-failure 2->9         started        11 python3.8 dpkg 2->11         started        signatures3 31 Uses dynamic DNS services 17->31 process4 process5 13 systemdd.elf 7->13         started        15 systemdd.elf 7->15         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/91fa90bc79f33d5dd9bf20fb175b57087157e416fed07ed2390c966592358218
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/91fa90bc79f33d5dd9bf20fb175b57087157e416fed07ed2390c966592358218/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-14 19:17:29 UTC
File Type:
ELF64 Little (Exe)
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=sh5jbpdz6m6v3wn7ed5row2xbbyvpzaw73ih5urzbslglervqima._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai defense_evasion discovery linux
Link:
https://tria.ge/reports/260114-xy6dyscx9h/
Behaviour
Reads runtime system information
Writes file to system bin folder
Modifies Watchdog functionality
Malware Config
C2 Extraction:
lolzzmortex.duckdns.org
Verdict:
Malicious
Tags:
trojan mirai gafgyt Unix.Trojan.Mirai-7100807-0
YARA:
Linux_Trojan_Gafgyt_9e9530a7 Linux_Trojan_Gafgyt_807911a2 Linux_Trojan_Gafgyt_ea92cca8 Linux_Trojan_Gafgyt_d4227dbf Linux_Trojan_Gafgyt_d996d335 Linux_Trojan_Gafgyt_d0c57a2e Linux_Trojan_Gafgyt_620087b9 Linux_Trojan_Gafgyt_0cd591cd Linux_Trojan_Gafgyt_33b4111a Linux_Trojan_Gafgyt_a33a8363 Linux_Trojan_Mirai_6a77af0f Linux_Trojan_Mirai_e0cf29e2
Link:
https://app.threat.zone/submission/54711c5b-72f9-4506-9418-2859b46925c0
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/91fa90bc79f3/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.20
Link:
https://yomi.yoroi.company/submissions/91fa90bc79f33d5dd9bf20fb175b57087157e416fed07ed2390c966592358218

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:botnet_Yakuza
Create hunting rule
Author:NDA0E
Description:Yakuza botnet
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:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Gafgyt_0cd591cd
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_33b4111a
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_620087b9
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_807911a2
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_9e9530a7
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_a33a8363
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d0c57a2e
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d4227dbf
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d996d335
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_ea92cca8
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_6a77af0f
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_e0cf29e2
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 85a4bc45ce91a9a516217650d9c611b9c3e482832fc7c1be092ccd624d594f70

Mirai

elf 91fa90bc79f33d5dd9bf20fb175b57087157e416fed07ed2390c966592358218

(this sample)

  
Dropped by
SHA256 85a4bc45ce91a9a516217650d9c611b9c3e482832fc7c1be092ccd624d594f70
  
URLhaus
https://urlhaus.abuse.ch/url/3758016/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3758029/
  
URLhaus
https://urlhaus.abuse.ch/url/3758054/
  
Dropped by
MD5 c618f31ce8a75453ced98a3d8851fd82

Comments