MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a42f881831afa3b1e916db3c2423c70916d5d3b7ed7c004d6fd527d2febccfb1. 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: 7


Intelligence 7 IOCs YARA 3 File information Comments

SHA256 hash: a42f881831afa3b1e916db3c2423c70916d5d3b7ed7c004d6fd527d2febccfb1
SHA3-384 hash: e00b322bd2b14ac0c9060a1ea6844aa3afe06cc7b64dfd644c2e30f3c9561183fccfdaa5b8e28b3345778fb791f262bb
SHA1 hash: c511e78733d14c8b320111703e7a1dd1c2f82bab
MD5 hash: 48d4913c8c21ab3cb70bdb117e9da390
humanhash: nebraska-speaker-lithium-kitten
File name:mipsel
Download: download sample
Signature Mirai
File size:117'208 bytes
First seen:2026-01-02 01:32:03 UTC
Last seen:Never
File type: elf
MIME type:application/x-sharedlib
ssdeep 3072:FquUu9F5Bj1bON9IqQpbSXzpIUChxQu9a+QK:Fqu7FxiNaqjXzqQVK
TLSH T17AB312B45F11F65E61022EDA3E932B93A108E39F6590EE66182EF71235CF386D0D099D
Magika elf
Reporter abuse_ch
Tags:elf mirai UPX
File size (compressed) :117'208 bytes
File size (de-compressed) :291'648 bytes
Format:linux/mipsel
Unpacked file: 1c14cc75543c87ea3508f947371482350f69f472522204f6746558c74fe7402f

Intelligence


File Origin
# of uploads :
1
# of downloads :
37
Origin country :
DE DE
Vendor Threat Intelligence
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
mirai packed upx
Verdict:
Unknown
File Type:
elf.32.le
First seen:
2026-01-01T19:54:00Z UTC
Last seen:
2026-01-01T20:07:00Z UTC
Hits:
~10
Status:
terminated
Behavior Graph:
%3 guuid=d23ac251-1900-0000-2845-e71709090000 pid=2313 /usr/bin/sudo guuid=efefa453-1900-0000-2845-e7170d090000 pid=2317 /tmp/sample.bin guuid=d23ac251-1900-0000-2845-e71709090000 pid=2313->guuid=efefa453-1900-0000-2845-e7170d090000 pid=2317 execve
Result
Threat name:
n/a
Detection:
suspicious
Classification:
evad
Score:
22 / 100
Signature
Sample is packed with UPX
Behaviour
Behavior Graph:
Threat name:
Linux.Worm.Mirai
Status:
Suspicious
First seen:
2026-01-02 01:32:19 UTC
File Type:
ELF32 Little (SO)
AV detection:
7 of 24 (29.17%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery upx
Behaviour
Reads runtime system information
System Network Configuration Discovery
Changes its process name
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:elf_arm_mips_ko_so
Rule name:SUSP_ELF_LNX_UPX_Compressed_File
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:upx_packed_elf_v1
Author:RandomMalware

File information


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

Web download

Mirai

elf a42f881831afa3b1e916db3c2423c70916d5d3b7ed7c004d6fd527d2febccfb1

(this sample)

  
Delivery method
Distributed via web download

Comments