MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b138e12babf81f4c9c90876ff9250b7aae6d8ad8cfe4a36a78b02350dcaaf5d8. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b138e12babf81f4c9c90876ff9250b7aae6d8ad8cfe4a36a78b02350dcaaf5d8
SHA3-384 hash: b9cc3d57c08c2e5e72cf6af676e70c2ea0cfd2e8f5151151e8156c5095540cb29c533b1449211059d7ccfdcaca3bb9d5
SHA1 hash: d5ae0c43441639e02d81daa5f009df58074c882d
MD5 hash: 393e17b01702c452df4270bd769e22fb
humanhash: fifteen-floor-kitten-timing
File name:zerx86
Download: download sample
Signature Mirai
Create hunting rule
File size:58'352 bytes
First seen:2026-01-11 14:43:03 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:gV30e0wMvykYTH5bvO+bKXh23Yy3nrU2c7ud9yfRNmNLo:gdx0wMv1MhXGXkYy3nw27AfTwLo
TLSH T1E3434BC18142E8F5DC092574757AF337A6B2CDB401ACFDF7F76893B24026A687146A4E
telfhash t13a11cafa15bd08e4f7d4d900864e6fa1196ee777695072e048239a6431a7d9330bec3e
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 :
65
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.31075.LX.BOT.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-9885259-0
Create hunting rule

Unix.Trojan.Gafgyt-6735924-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
DNS request
Runs as daemon
Creating a file
Opens a port
Sends data to a server
Substitutes an application name
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/6963b7071a20a4c87b1ac350/reports/6083dc3e-0d99-48f6-b4de-d87c5b1ca573/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-01-11T13:45:00Z UTC
Last seen:
2026-01-11T14:14:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/b138e12babf81f4c9c90876ff9250b7aae6d8ad8cfe4a36a78b02350dcaaf5d8/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/bb4bc7ee-3bea-435f-bab7-d87e102a1f8b
Behavior Graph:
Download SVG
%3 guuid=91a261e5-1800-0000-0ac6-9928ae0f0000 pid=4014 /usr/bin/sudo guuid=f5a597e8-1800-0000-0ac6-9928be0f0000 pid=4030 /tmp/sample.bin net guuid=91a261e5-1800-0000-0ac6-9928ae0f0000 pid=4014->guuid=f5a597e8-1800-0000-0ac6-9928be0f0000 pid=4030 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=f5a597e8-1800-0000-0ac6-9928be0f0000 pid=4030->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=d9a9c1e8-1800-0000-0ac6-9928bf0f0000 pid=4031 /tmp/sample.bin dns net send-data zombie guuid=f5a597e8-1800-0000-0ac6-9928be0f0000 pid=4030->guuid=d9a9c1e8-1800-0000-0ac6-9928bf0f0000 pid=4031 clone guuid=d9a9c1e8-1800-0000-0ac6-9928bf0f0000 pid=4031->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 32B c42b7245-f894-51f6-b112-367ad1fbc99f 167.99.246.88:39691 guuid=d9a9c1e8-1800-0000-0ac6-9928bf0f0000 pid=4031->c42b7245-f894-51f6-b112-367ad1fbc99f send: 25B guuid=5ecdd3e8-1800-0000-0ac6-9928c00f0000 pid=4032 /tmp/. guuid=d9a9c1e8-1800-0000-0ac6-9928bf0f0000 pid=4031->guuid=5ecdd3e8-1800-0000-0ac6-9928c00f0000 pid=4032 clone
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9934a942-4171-4576-adff-4525ca0319ae
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1848422
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1848422 Sample: zerx86.elf Startdate: 11/01/2026 Architecture: LINUX Score: 64 20 134.122.13.243, 33336, 39691 DIGITALOCEAN-ASNUS United States 2->20 22 slursbeback.ru 2->22 24 Malicious sample detected (through community Yara rule) 2->24 26 Antivirus / Scanner detection for submitted sample 2->26 28 Multi AV Scanner detection for submitted file 2->28 8 systemd snap-failure 2->8         started        10 zerx86.elf 2->10         started        signatures3 process4 process5 12 snap-failure systemctl 8->12         started        14 snap-failure 8->14         started        16 zerx86.elf 10->16         started        process6 18 zerx86.elf 16->18         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b138e12babf81f4c9c90876ff9250b7aae6d8ad8cfe4a36a78b02350dcaaf5d8
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b138e12babf81f4c9c90876ff9250b7aae6d8ad8cfe4a36a78b02350dcaaf5d8/
Threat name:
Linux.Trojan.Multiverze
Create hunting rule
Status:
Malicious
First seen:
2026-01-11 14:43:26 UTC
File Type:
ELF32 Little (Exe)
AV detection:
16 of 37 (43.24%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=we4ock5l7apuzheqq5x7sjilpkxg3cwyz7skg2tywarvbxfk6xma._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
linux
Link:
https://tria.ge/reports/260111-r3se1ag19h/
Behaviour
Changes its process name
Renames itself
Verdict:
Malicious
Tags:
trojan mirai Unix.Trojan.Mirai-9885259-0
YARA:
Linux_Trojan_Mirai_fa3ad9d0 Linux_Trojan_Mirai_cc93863b Linux_Trojan_Mirai_8aa7b5d3
Link:
https://app.threat.zone/submission/0ff5cd26-2980-4453-a836-9276eef3be07
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.20
Link:
https://yomi.yoroi.company/submissions/b138e12babf81f4c9c90876ff9250b7aae6d8ad8cfe4a36a78b02350dcaaf5d8

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:Linux_Trojan_Mirai_8aa7b5d3
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_fa3ad9d0
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 b138e12babf81f4c9c90876ff9250b7aae6d8ad8cfe4a36a78b02350dcaaf5d8

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3739169/
  
Delivery method
Distributed via web download

Comments