MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c4657bca1b72a99df88dd18a5f6facfae6fea5df0c5c24844456d1a9e35c73f7. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c4657bca1b72a99df88dd18a5f6facfae6fea5df0c5c24844456d1a9e35c73f7
SHA3-384 hash: 420aa79aa6c8851c76125bd17b9ea71873ad04b115fdb32c1c339c391d36021c1cbf6af2d22066d50a68d6a48f62c262
SHA1 hash: ef5a069d06b1392a137067925bae67e8dcca99f0
MD5 hash: 778423740eb6b127d31d109922008aad
humanhash: fourteen-fix-montana-fruit
File name:upjohn90.spc
Download: download sample
Signature Mirai
Create hunting rule
File size:96'760 bytes
First seen:2025-07-26 09:16:43 UTC
Last seen:2025-07-26 11:31:12 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:VKwPL5QQ5bbmuDi0c5Zbq8WiLHuFtOko95VWAulYt2Khi:1dkevgkoPgIi
TLSH T14C934A22FE75193BC4C4A47761F34336F2F6478A24A88A1F7D710E8DAF257502297AB4
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
3
# of downloads :
45
Origin country :
DE DE
Vendor Threat Intelligence
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
lolbin obfuscated remote
Link:
https://www.filescan.io/uploads/68849d2813488cfd44d950ba/reports/060f6476-9545-4b8b-922d-5787231be173/overview
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/09ebbe5d-ee5a-4c1d-b921-dd646a26805a
Behavior Graph:
Download SVG
%3 guuid=69957ca2-1900-0000-b7ea-7136b1070000 pid=1969 /usr/bin/sudo guuid=5862f4a6-1900-0000-b7ea-7136b2070000 pid=1970 /tmp/sample.bin guuid=69957ca2-1900-0000-b7ea-7136b1070000 pid=1969->guuid=5862f4a6-1900-0000-b7ea-7136b2070000 pid=1970 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/57596917-b01f-41ee-82c0-39b50a0d3d7a
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1744553
Signature
Deletes system log files
Drops files in suspicious directories
Manipulation of devices in /dev
Multi AV Scanner detection for submitted file
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1744553 Sample: upjohn90.spc.elf Startdate: 26/07/2025 Architecture: LINUX Score: 68 31 65.222.202.53, 80 CAPEREGIONALHEALTHSYSTEMUS United States 2->31 33 185.125.190.26, 443 CANONICAL-ASGB United Kingdom 2->33 35 Multi AV Scanner detection for submitted file 2->35 10 upjohn90.spc.elf 2->10         started        signatures3 process4 process5 12 upjohn90.spc.elf 10->12         started        process6 14 upjohn90.spc.elf 12->14         started        file7 29 /etc/init.d/sysd, POSIX 14->29 dropped 41 Sample tries to set files in /etc globally writable 14->41 43 Drops files in suspicious directories 14->43 45 Sample tries to persist itself using System V runlevels 14->45 18 upjohn90.spc.elf 14->18         started        20 upjohn90.spc.elf sh 14->20         started        signatures8 process9 process10 22 upjohn90.spc.elf 18->22         started        25 upjohn90.spc.elf 18->25         started        27 sh cp 20->27         started        signatures11 37 Manipulation of devices in /dev 22->37 39 Deletes system log files 22->39
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/c4657bca1b72a99df88dd18a5f6facfae6fea5df0c5c24844456d1a9e35c73f7
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c4657bca1b72a99df88dd18a5f6facfae6fea5df0c5c24844456d1a9e35c73f7/
Verdict:
Malicious
Threat:
HEUR:Backdoor.Linux.Mirai
Link:
https://tip.neiki.dev/file/c4657bca1b72a99df88dd18a5f6facfae6fea5df0c5c24844456d1a9e35c73f7
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-07-26 07:23:33 UTC
File Type:
ELF32 Big (Exe)
AV detection:
17 of 35 (48.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yrsxxsq3okuz36en2gff635m7ltp5jo7brocjbcek3i2ty24op3q._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Link:
https://tria.ge/reports/250726-k88wlsfp6z/
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/f0ce6d52-0e27-4bee-9da6-70076d31b993
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/c4657bca1b72a99df88dd18a5f6facfae6fea5df0c5c24844456d1a9e35c73f7

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: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 c4657bca1b72a99df88dd18a5f6facfae6fea5df0c5c24844456d1a9e35c73f7

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3590274/
  
Delivery method
Distributed via web download

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