MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c99676a07759c484553d25202de5f45cc3b8f238bf1fa132b177ea860e94af9d. 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: 11


Intelligence 11 IOCs YARA 4 File information Comments

SHA256 hash: c99676a07759c484553d25202de5f45cc3b8f238bf1fa132b177ea860e94af9d
SHA3-384 hash: 3d1abbb9682698741a19b43e5dd87c8ccbec3bd4722a68154a4ecf4ba526c25c442035699d2d458da0c9431dfab6aec5
SHA1 hash: e72a9cb8fa34bf24669d624259b2d558536c93ae
MD5 hash: 350ccb0619bc6b6a9ff8130b18688c96
humanhash: uniform-august-mango-alanine
File name:ub8ehJSePAfc9FYqZIT6.arm5
Download: download sample
Signature Mirai
File size:34'100 bytes
First seen:2026-01-19 08:18:25 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:R3/rLYwSgdsjAhjC53NvYNMidUoKWrRI8oS:FtZxdCrYNMiqWV
TLSH T1A8E22A9BA592882FC9D04336BB6F126E3302F398D1DB3707DE198B5D368B1899D5F940
telfhash t16ae06800ac758a1cd8db9a74dcdd03a99500232751164f108f00dbe0c83f044e70ca9b
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 upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 22e6c655295488a1e6efa6f67f460484c2ab8b67230d4c55016160c1d4c8541a
File size (compressed) :16'604 bytes
File size (de-compressed) :34'100 bytes
Format:linux/arm
Packed file: 22e6c655295488a1e6efa6f67f460484c2ab8b67230d4c55016160c1d4c8541a

Intelligence


File Origin
# of uploads :
1
# of downloads :
87
Origin country :
NL NL
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
an XOR decryption key and at least a c2 socket address
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-01-19T05:27:00Z UTC
Last seen:
2026-01-19T06:46:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.r HEUR:Backdoor.Linux.Mirai.b
Status:
terminated
Behavior Graph:
%3 guuid=771fa82f-1a00-0000-2b97-7e7fb90a0000 pid=2745 /usr/bin/sudo guuid=1154ec31-1a00-0000-2b97-7e7fbf0a0000 pid=2751 /tmp/sample.bin guuid=771fa82f-1a00-0000-2b97-7e7fb90a0000 pid=2745->guuid=1154ec31-1a00-0000-2b97-7e7fbf0a0000 pid=2751 execve
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
56 / 100
Signature
Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2026-01-19 08:19:35 UTC
File Type:
ELF32 Little (Exe)
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:mirai botnet:lzrd
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-7100807-0
YARA:
n/a
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:setsockopt
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:SUSP_XORed_Mozilla_Oct19
Author:Florian Roth
Description:Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()
Rule name:SUSP_XORed_Mozilla_RID2DB4
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
Rule name:unixredflags3
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 c99676a07759c484553d25202de5f45cc3b8f238bf1fa132b177ea860e94af9d

(this sample)

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