MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 638f52a0cae3f495dc5f9c74531197abf1f8fea9ae78e03028a1ac68e54c153b. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 638f52a0cae3f495dc5f9c74531197abf1f8fea9ae78e03028a1ac68e54c153b
SHA3-384 hash: 50c001b209b96e2262618792ebb74f58ca30d486a4bc62f84be96332f0a7d89dc7bd5209bd75c3a35ce689d4f660390f
SHA1 hash: 6844725bc6ae40048d4aa879f287101950b16c95
MD5 hash: 2677b3d3b7a61d361035edf95636b13f
humanhash: green-beryllium-hamper-skylark
File name:powerpc.uhavenobotsxd
Download: download sample
Signature Mirai
Create hunting rule
File size:99'636 bytes
First seen:2025-11-23 07:42:41 UTC
Last seen:2025-11-24 02:38:31 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:lFkxJk6aWklzUTPkPIP//EXm9MIBBlJ3YpAcUjn6Ieo+oqVemlk:lFi2HucPIP//EXTcFYCckHe5k
TLSH T191A35D01B30C0E03D1B75EB07F3F37C5D3AAAAD112F4F649251BA64991B6E365186E8D
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
2
# of downloads :
128
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.30455.LC.BadVar.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-10001386-0
Create hunting rule

Unix.Trojan.Mirai-10010119-0
Create hunting rule

Unix.Trojan.Mirai-10010127-0
Create hunting rule

Unix.Trojan.Mirai-10017351-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Deleting a recently created file
Sends data to a server
Launching a process
Sets a written file as executable
Deletes a file
Opens a port
Changes the time when the file was created, accessed, or modified
Creates or modifies symbolic links
Receives data from a server
Creating a file
Runs as daemon
Connection attempt
Changes access rights for a written file
Creating a process from a recently created file
Kills processes
Writes files to system directory
Substitutes an application name
Creates or modifies files in /cron to set up autorun
Creates or modifies files in /init.d to set up autorun
Creates or modifies files to set up autorun
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
mirai
Link:
https://www.filescan.io/uploads/6922bb17eecb08e4aa45835a/reports/0bfd5095-0cc3-43ef-baf2-dd3d4eca13ac/overview
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2025-11-23T06:25:00Z UTC
Last seen:
2025-11-23T07:40:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/638f52a0cae3f495dc5f9c74531197abf1f8fea9ae78e03028a1ac68e54c153b/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/adb11428-62d0-4552-9390-b2d78268fba4
Behavior Graph:
Download SVG
%3 guuid=668d5e10-1900-0000-7904-b8481c140000 pid=5148 /usr/bin/sudo guuid=dc3e5d12-1900-0000-7904-b8482a140000 pid=5162 /tmp/sample.bin guuid=668d5e10-1900-0000-7904-b8481c140000 pid=5148->guuid=dc3e5d12-1900-0000-7904-b8482a140000 pid=5162 execve
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1819322
Signature
Drops files in suspicious directories
Drops invisible ELF files
Executes the "crontab" command typically for achieving persistence
Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions
Multi AV Scanner detection for submitted file
Sample reads /proc/mounts (often used for finding a writable filesystem)
Sample tries to kill multiple processes (SIGKILL)
Sample tries to persist itself using /etc/profile
Sample tries to persist itself using cron
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Writes identical ELF files to multiple locations
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1819322 Sample: powerpc.uhavenobotsxd.elf Startdate: 23/11/2025 Architecture: LINUX Score: 92 97 94.154.35.153, 38454, 6969 SELECTELRU Ukraine 2->97 99 52.201.252.52, 56936, 56938, 56942 AMAZON-AESUS United States 2->99 101 54.171.230.55, 443, 60058 AMAZON-02US United States 2->101 103 Multi AV Scanner detection for submitted file 2->103 11 powerpc.uhavenobotsxd.elf 2->11         started        14 dash rm 2->14         started        16 dash rm 2->16         started        signatures3 process4 signatures5 129 Sample reads /proc/mounts (often used for finding a writable filesystem) 11->129 18 powerpc.uhavenobotsxd.elf 11->18         started        process6 file7 79 /var/spool/cron/root, ASCII 18->79 dropped 81 /var/spool/cron/crontabs/root, ASCII 18->81 dropped 83 /root/.bashrc, ASCII 18->83 dropped 85 10 other malicious files 18->85 dropped 105 Sample tries to set files in /etc globally writable 18->105 107 Sample tries to persist itself using /etc/profile 18->107 109 Drops files in suspicious directories 18->109 111 4 other signatures 18->111 22 powerpc.uhavenobotsxd.elf sh 18->22         started        24 powerpc.uhavenobotsxd.elf 18->24         started        26 powerpc.uhavenobotsxd.elf sh 18->26         started        28 30 other processes 18->28 signatures8 process9 signatures10 31 sh S993cjt 22->31         started        33 powerpc.uhavenobotsxd.elf sh 24->33         started        47 3 other processes 24->47 35 sh crontab 26->35         started        39 sh 26->39         started        131 Sample tries to kill multiple processes (SIGKILL) 28->131 41 sh cp 28->41         started        43 sh cp 28->43         started        45 sh cp 28->45         started        49 26 other processes 28->49 process11 file12 51 S993cjt 31->51         started        53 S993cjt ow4jkjc2 31->53         started        56 sh ow4jkjc2 33->56         started        87 /var/spool/cron/crontabs/tmp.qGjS1w, ASCII 35->87 dropped 113 Sample tries to persist itself using cron 35->113 115 Executes the "crontab" command typically for achieving persistence 35->115 58 sh crontab 39->58         started        89 /usr/bin/ow4jkjc2, ELF 41->89 dropped 117 Writes identical ELF files to multiple locations 41->117 119 Drops files in suspicious directories 41->119 91 /boot/.8j3s6nsg, ELF 43->91 dropped 121 Drops invisible ELF files 43->121 93 /var/jbx/shared/.3c2qrn3f, ELF 45->93 dropped 60 sh ow4jkjc2 47->60         started        68 2 other processes 47->68 95 /var/log/.obo18rkr, ELF 49->95 dropped 62 S99tcau .8j3s6nsg 49->62         started        64 S99kmnc .3c2qrn3f 49->64         started        66 S99djqo .obo18rkr 49->66         started        signatures13 process14 signatures15 70 S993cjt ow4jkjc2 51->70         started        73 S993cjt ow4jkjc2 51->73         started        75 S993cjt ow4jkjc2 51->75         started        77 69 other processes 51->77 123 Executes the "crontab" command typically for achieving persistence 58->123 125 Sample reads /proc/mounts (often used for finding a writable filesystem) 62->125 process16 signatures17 127 Sample reads /proc/mounts (often used for finding a writable filesystem) 70->127
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/638f52a0cae3f495dc5f9c74531197abf1f8fea9ae78e03028a1ac68e54c153b
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/638f52a0cae3f495dc5f9c74531197abf1f8fea9ae78e03028a1ac68e54c153b/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-11-23 07:43:15 UTC
File Type:
ELF32 Big (Exe)
AV detection:
9 of 36 (25.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mohvfigk4p2jlxc7tr2fgemxvpy7r7vjvz4oambiugwgrzkmcu5q._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Link:
https://tria.ge/reports/251123-jkdvws1lex/
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-10001386-0
YARA:
n/a
Link:
https://app.threat.zone/submission/09840bc1-f573-417b-8ad3-680bf2bd4621
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/638f52a0cae3f495dc5f9c74531197abf1f8fea9ae78e03028a1ac68e54c153b

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:ach_202503_elf_Mirai
Create hunting rule
Author:abuse.ch
Description:Detects Mirai 'TSource' ELF files
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
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 638f52a0cae3f495dc5f9c74531197abf1f8fea9ae78e03028a1ac68e54c153b

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3686380/
  
Delivery method
Distributed via web download

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