MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1b665073448a854dde3adfa8746598f3a2cf7dde258362d2faae6b85ad4f4bf0. 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: 9


Intelligence 9 IOCs YARA 12 File information Comments

SHA256 hash: 1b665073448a854dde3adfa8746598f3a2cf7dde258362d2faae6b85ad4f4bf0
SHA3-384 hash: 03d477f8a5b53c0e5eeb69deb5bf6f6a47ac4c0cde4b031d4beaf6146087a0b6f2abc4e981a957c93905d94df3c534e8
SHA1 hash: a8d3dff1f0c24af0934c9e966d50192ebad3e009
MD5 hash: 7f448a4bc02f639e7aa9a4fe003d10e7
humanhash: hamper-utah-table-twenty
File name:nz.arm7
Download: download sample
Signature Mirai
File size:176'507 bytes
First seen:2026-07-21 13:23:40 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:OUYNIkBWDMBaShF/h9b1tgBKsXCmiHUdLoy3d0fM/9jezpFM:OUKByIaShF/h9xtwdCPH0Loy3dEM/9gM
TLSH T1DE045C46EB818A13C0D71779B69F524633239BA4D3DB33069918AFB43F867DE0E63605
telfhash t13c31fe31573151196ab1d954edec97b2152a87132349ee33df36c8dc181a09be93ec0f
Magika elf
Reporter abuse_ch
Tags:elf mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 8793d30a43d8d26aad7c46f03752199a39434a1350708eedf2b238de7728c52a
File size (compressed) :67'424 bytes
File size (de-compressed) :176'507 bytes
Format:linux/arm
Packed file: 8793d30a43d8d26aad7c46f03752199a39434a1350708eedf2b238de7728c52a

Intelligence


File Origin
# of uploads :
1
# of downloads :
111
Origin country :
NL NL
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Sends data to a server
Runs as daemon
Opens a port
Connection attempt
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
botnet gcc masquerade mirai obfuscated rust
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-07-21T11:32:00Z UTC
Last seen:
2026-07-21T12:01:00Z UTC
Hits:
~10
Status:
terminated
Behavior Graph:
%3 guuid=16cfb0fe-1700-0000-5933-cdd4790b0000 pid=2937 /usr/bin/sudo guuid=094b9500-1800-0000-5933-cdd47d0b0000 pid=2941 /tmp/sample.bin guuid=16cfb0fe-1700-0000-5933-cdd4790b0000 pid=2937->guuid=094b9500-1800-0000-5933-cdd47d0b0000 pid=2941 execve
Gathering data
Threat name:
Linux.Backdoor.Mirai
Status:
Malicious
First seen:
2026-07-21 13:24:54 UTC
File Type:
ELF32 Little (Exe)
AV detection:
20 of 36 (55.56%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Malware Config
C2 Extraction:
jkqhdbbbqwiujkaz.hopto.org
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:CP_Script_Inject_Detector
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:ELF_Mirai
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:ELF_Toriilike_persist
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:linux_generic_ipv6_catcher
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Generic_Threat_8299c877
Author:Elastic Security
Rule name:Linux_Generic_Threat_c19ca8e5
Author:Elastic Security
Rule name:MAL_ARM_LNX_Mirai_Mar13_2022
Author:Mehmet Ali Kerimoglu a.k.a. CYB3RMX
Description:Detects new ARM Mirai variant
Rule name:setsockopt
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:SUSP_XORed_Mozilla_Oct19
Author:Florian Roth
Description:Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()
Rule name:SUSP_XORed_Mozilla_RID2DB4
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
Rule name:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
Rule name:unixredflags3
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 1b665073448a854dde3adfa8746598f3a2cf7dde258362d2faae6b85ad4f4bf0

(this sample)

  
Delivery method
Distributed via web download

Comments