MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7b1f8ff31a42daf191456151415438f63b6653e594b9eb01ef01e2ebe2b4368f. 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: 10


Intelligence 10 IOCs YARA 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7b1f8ff31a42daf191456151415438f63b6653e594b9eb01ef01e2ebe2b4368f
SHA3-384 hash: a4e4e7531051be98d456a9f55f4022d79f76918fd1f5a1e831ae9bf75ca83fa716b18a59cd50cfa5a739eba32db243f5
SHA1 hash: 2bdee3a798f6af091a8deb4042e943dde1ff2f98
MD5 hash: 88f72db12de7e37da1e05fbf28e68077
humanhash: johnny-enemy-connecticut-arizona
File name:x86_32.uhavenobotsxd
Download: download sample
Signature Mirai
Create hunting rule
File size:91'124 bytes
First seen:2026-01-01 19:48:09 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:7jnmRtbOxkkt2rQtowKxpeup+WE+EpJx83f0A76LOkv2RW+oiZclShVztT26BymR:XnYOWkIrQaxpefHpJx8cAGLOkuCiZYwV
TLSH T1A9936DC2A743C8F5ED6612B8653BB3764676E5360039DB8ACB24BC359C26602F72735C
telfhash t1074114f9166f5cd8a7d47841e14e6f302c4eab7b116036a346b3d938226be8101bbd3d
TrID 50.1% (.) ELF Executable and Linkable format (Linux) (4022/12)
49.8% (.O) ELF Executable and Linkable format (generic) (4000/1)
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
43
Origin country :
DE DE
Vendor Threat Intelligence
No detections
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

Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
mirai
Link:
https://www.filescan.io/uploads/6956cf808d1aa9829e289130/reports/c2c096ee-a096-4c5f-819e-76aef5e9b240/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-01-01T18:09:00Z UTC
Last seen:
2026-01-02T01:59:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/7b1f8ff31a42daf191456151415438f63b6653e594b9eb01ef01e2ebe2b4368f/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/559937a9-c824-4370-b225-b2f6f1b636c7
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1843282
Signature
Drops files in suspicious directories
Drops invisible ELF files
Executes the "crontab" command typically for achieving persistence
Malicious sample detected (through community Yara rule)
Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample reads /proc/mounts (often used for finding a writable filesystem)
Sample tries to kill a massive number of system processes
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
Terminates several processes with shell command 'killall'
Writes identical ELF files to multiple locations
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1843282 Sample: x86_32.uhavenobotsxd.elf Startdate: 01/01/2026 Architecture: LINUX Score: 100 96 94.154.35.153, 40694, 6969 SELECTELRU Ukraine 2->96 98 Malicious sample detected (through community Yara rule) 2->98 100 Multi AV Scanner detection for submitted file 2->100 11 x86_32.uhavenobotsxd.elf 2->11         started        signatures3 process4 signatures5 122 Sample tries to kill multiple processes (SIGKILL) 11->122 124 Sample reads /proc/mounts (often used for finding a writable filesystem) 11->124 14 x86_32.uhavenobotsxd.elf 11->14         started        process6 file7 88 /var/spool/cron/root, ASCII 14->88 dropped 90 /var/spool/cron/crontabs/root, ASCII 14->90 dropped 92 /root/.bashrc, ASCII 14->92 dropped 94 11 other files (10 malicious) 14->94 dropped 126 Sample tries to set files in /etc globally writable 14->126 128 Sample tries to persist itself using /etc/profile 14->128 130 Drops files in suspicious directories 14->130 132 4 other signatures 14->132 18 x86_32.uhavenobotsxd.elf sh 14->18         started        20 x86_32.uhavenobotsxd.elf sh 14->20         started        22 x86_32.uhavenobotsxd.elf sh 14->22         started        24 21 other processes 14->24 signatures8 process9 signatures10 27 sh S99backup0 18->27         started        29 sh S99backup1 20->29         started        31 sh S99backup2 22->31         started        118 Sample tries to kill a massive number of system processes 24->118 120 Sample tries to kill multiple processes (SIGKILL) 24->120 33 sh S99network 24->33         started        35 sh cp 24->35         started        39 sh crontab 24->39         started        41 20 other processes 24->41 process11 file12 43 S99backup0 27->43         started        45 S99backup1 29->45         started        47 S99backup2 31->47         started        49 S99network 33->49         started        78 /usr/bin/.update, ELF 35->78 dropped 104 Writes identical ELF files to multiple locations 35->104 106 Drops invisible ELF files 35->106 108 Drops files in suspicious directories 35->108 80 /var/spool/cron/crontabs/tmp.novKFl, ASCII 39->80 dropped 110 Sample tries to persist itself using cron 39->110 112 Executes the "crontab" command typically for achieving persistence 39->112 82 /var/log/.update, ELF 41->82 dropped 84 /var/jbx/shared/.update, ELF 41->84 dropped 86 /boot/.update, ELF 41->86 dropped 114 Sample deletes itself 41->114 116 Terminates several processes with shell command 'killall' 41->116 51 sh crontab 41->51         started        54 .monitor 41->54         started        56 sh .update 41->56         started        58 3 other processes 41->58 signatures13 process14 signatures15 60 S99backup0 .update 43->60         started        68 61 other processes 43->68 62 S99backup1 .update 45->62         started        70 55 other processes 45->70 64 S99backup2 .update 47->64         started        72 51 other processes 47->72 66 S99network .update 49->66         started        74 47 other processes 49->74 102 Executes the "crontab" command typically for achieving persistence 51->102 76 2 other processes 54->76 process16
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/7b1f8ff31a42daf191456151415438f63b6653e594b9eb01ef01e2ebe2b4368f
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/7b1f8ff31a42daf191456151415438f63b6653e594b9eb01ef01e2ebe2b4368f/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-01 19:48:18 UTC
File Type:
ELF32 Little (Exe)
AV detection:
11 of 24 (45.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=pmpy74y2ilnpdekfmfiucvby6y5wmu7fss46wappahroxyvug2hq._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution linux persistence privilege_escalation
Link:
https://tria.ge/reports/260101-yjd7lawkhq/
Behaviour
Reads runtime system information
Writes file to shm directory
Changes its process name
Modifies Bash startup script
Creates/modifies Cron job
Creates/modifies environment variables
Deletes log files
Enumerates running processes
Modifies init.d
Modifies rc script
Write file to user bin folder
Executes dropped EXE
Verdict:
Malicious
Tags:
trojan gafgyt mirai Unix.Trojan.Mirai-10001386-0
YARA:
Linux_Trojan_Gafgyt_5bf62ce4 Linux_Trojan_Mirai_b14f4c5d Linux_Trojan_Mirai_5f7b67b8 Linux_Trojan_Mirai_ae9d0fa6 Linux_Trojan_Mirai_cc93863b
Link:
https://app.threat.zone/submission/348b2020-fa02-4d45-92ee-8d452778f85a
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.64
Link:
https://yomi.yoroi.company/submissions/7b1f8ff31a42daf191456151415438f63b6653e594b9eb01ef01e2ebe2b4368f

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:ELF_IoT_Persistence_Hunt
Create hunting rule
Author:4r4
Description:Hunts for ELF files with persistence and download capabilities
Rule name:ELF_Toriilike_persist
Create hunting rule
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:Linux_Trojan_Gafgyt_5bf62ce4
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_5f7b67b8
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_ae9d0fa6
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_b14f4c5d
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
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 7b1f8ff31a42daf191456151415438f63b6653e594b9eb01ef01e2ebe2b4368f

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3687976/
  
Delivery method
Distributed via web download

Comments