MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1981a56ef39f0fa37060a88c2c340abd322fe685be94152b35fa46eeb38fa65e. 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: 11


Intelligence 11 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1981a56ef39f0fa37060a88c2c340abd322fe685be94152b35fa46eeb38fa65e
SHA3-384 hash: f7f65acf2a0e61b2c32e39fc36210f422d6c7775e024e7b0b711c9f3ee51625bea0e9d2eb8fd70a81f0a0327ab2bac06
SHA1 hash: c82ffe63b7656c2abc0b59c0f566b0ee510736a2
MD5 hash: 5ffd13f735cd233f6f5cb8bbe5cdb536
humanhash: moon-nine-jig-oklahoma
File name:Orbt.mips
Download: download sample
Signature Mirai
Create hunting rule
File size:225'476 bytes
First seen:2025-10-28 04:18:08 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:KVO/4tF6If3snOTk+FmIlgAjcJIgMEztdskajBiY3sjUXXt9kfv:9gtF6If3KSk+FmIQLVzTsbVi3jUntmn
TLSH T1C924A64E6F328F7DF7B887344BB74A20975923D623E1D585D2ACD2111F6028E641FBA8
telfhash t10941911c0ab803a492696c5d449dff26d6a330db3e1a2c278b51e85ee76af838d14d19
Magika elf
Reporter abuse_ch
Tags:elf mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 74b0536ba2de49f1989592c085010eb3400aa33b4a4b85424e320fb74d143d82
File size (compressed) :70'236 bytes
File size (de-compressed) :224'820 bytes
Format:linux/mips
Packed file: 74b0536ba2de49f1989592c085010eb3400aa33b4a4b85424e320fb74d143d82

Intelligence

File Origin
# of uploads :
1
# of downloads :
61
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.28940.LC.UNOFFICIAL
Create hunting rule

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

SecuriteInfo.com.Linux.Siggen.9999-6.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.Trojan.Mirai-8025795-0
Create hunting rule

Unix.Trojan.Mirai-8041698-0
Create hunting rule

Unix.Dropper.Mirai-10007027-0
Create hunting rule

Unix.Trojan.Mirai-10009361-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Receives data from a server
Opens a port
Sends data to a server
DNS request
Connection attempt
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade obfuscated
Link:
https://www.filescan.io/uploads/6900444211ff3db29f69a076/reports/9f36fddc-4464-42ab-a7fc-606fe51ce30a/overview
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2025-10-28T01:29:00Z UTC
Last seen:
2025-10-28T07:13:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Gafgyt.bj HEUR:Backdoor.Linux.Mirai.r HEUR:Backdoor.Linux.Mirai.h HEUR:Backdoor.Linux.Mirai.cw HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.bl
Link:
https://opentip.kaspersky.com/1981a56ef39f0fa37060a88c2c340abd322fe685be94152b35fa46eeb38fa65e/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/90c1bda3-e3fe-4710-93c8-0f781ff47924
Behavior Graph:
Download SVG
%3 guuid=d16c5bc6-1a00-0000-007b-e11c940b0000 pid=2964 /usr/bin/sudo guuid=2c8c04c9-1a00-0000-007b-e11c9d0b0000 pid=2973 /tmp/sample.bin guuid=d16c5bc6-1a00-0000-007b-e11c940b0000 pid=2964->guuid=2c8c04c9-1a00-0000-007b-e11c9d0b0000 pid=2973 execve
Gathering data
Result
Threat name:
Gafgyt
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1802878
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 Gafgyt
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1802878 Sample: Orbt.mips.elf Startdate: 28/10/2025 Architecture: LINUX Score: 76 22 mirailoversddos.duckdns.org 2->22 24 169.254.169.254, 80 USDOSUS Reserved 2->24 26 2 other IPs or domains 2->26 28 Malicious sample detected (through community Yara rule) 2->28 30 Antivirus / Scanner detection for submitted sample 2->30 32 Multi AV Scanner detection for submitted file 2->32 34 Yara detected Gafgyt 2->34 8 Orbt.mips.elf 2->8         started        10 python3.8 dpkg 2->10         started        signatures3 36 Uses dynamic DNS services 22->36 process4 process5 12 Orbt.mips.elf 8->12         started        14 Orbt.mips.elf 8->14         started        16 Orbt.mips.elf 8->16         started        process6 18 Orbt.mips.elf 12->18         started        20 Orbt.mips.elf 12->20         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/1981a56ef39f0fa37060a88c2c340abd322fe685be94152b35fa46eeb38fa65e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1981a56ef39f0fa37060a88c2c340abd322fe685be94152b35fa46eeb38fa65e/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/1981a56ef39f0fa37060a88c2c340abd322fe685be94152b35fa46eeb38fa65e
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-10-28 04:21:03 UTC
File Type:
ELF32 Big (Exe)
AV detection:
15 of 23 (65.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dga2k3xtt4h2g4davcgcynakxuzc7zufx2kbkkzv7jdo5m4puzpa._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai defense_evasion discovery
Link:
https://tria.ge/reports/251028-exqm1asjbr/
Behaviour
Reads runtime system information
System Network Configuration Discovery
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Verdict:
Malicious
Tags:
trojan gafgyt Unix.Trojan.Mirai-7100807-0
YARA:
Linux_Trojan_Gafgyt_ea92cca8
Link:
https://app.threat.zone/submission/1d4a193b-f6c8-477b-90ef-452bcd7868f7
Please note that we are no longer able to provide a coverage score for Virus Total.

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_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Gafgyt_ea92cca8
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 74b0536ba2de49f1989592c085010eb3400aa33b4a4b85424e320fb74d143d82

Mirai

elf 1981a56ef39f0fa37060a88c2c340abd322fe685be94152b35fa46eeb38fa65e

(this sample)

  
Dropped by
SHA256 74b0536ba2de49f1989592c085010eb3400aa33b4a4b85424e320fb74d143d82
  
URLhaus
https://urlhaus.abuse.ch/url/3682107/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 6e3566b3dab3c2433056ea63be739e2d
  
URLhaus
https://urlhaus.abuse.ch/url/3684970/

Comments