MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b4cf8707c0e746457ba193723f618591926893e5812220592ff8cb2c87155415. 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

SHA256 hash:	b4cf8707c0e746457ba193723f618591926893e5812220592ff8cb2c87155415
SHA3-384 hash:	d8c79d9ba25f3c374c09be1b1aaba9d7f110389e06c88bb743aa03a9bc36d843d068665f68cd128b2e3fb0082e805485
SHA1 hash:	bbeb9fba0b9510eaa770d4608e0fa403132cc85a
MD5 hash:	db1c2918af467e508ed320e6e35ddebc
humanhash:	three-kilo-green-twenty
File name:	nu
Download:	download sample
Signature	Mirai Alert Create hunting rule
File size:	294 bytes
First seen:	2025-10-04 20:50:49 UTC
Last seen:	Never
File type:	sh
MIME type:	text/x-shellscript
ssdeep	6:hftJ+pUKUF2RVYs5CYf53IdL4jKM3FoF/fkVKhOXqIKXD73IKX+N1IEWYq1IKBKW:ZtJ+jREYAL4jKF0ghsOTh4WYO8W
TLSH	T170E02B9DF8534C7378748CB9B7DB2491A50FA20B2E0A95CE35CD521EEBF4E60B050193
Magika	shell
Reporter	abuse_ch
Tags:	mirai sh

Intelligence

---

File Origin

# of uploads :

1

# of downloads :

52

Origin country :

DE

Vendor Threat Intelligence

ClamAV Detected

Detection(s):

SecuriteInfo.com.Linux.Downloader-23.UNOFFICIAL

Alert

Create hunting rule

FileScan.IO Likely Malicious

Verdict:

Likely Malicious

Threat level:

  7.5/10

Confidence:

100%

Link:

https://www.filescan.io/uploads/68e188dff377ab231051ffa1/reports/85f53a0b-2f03-4e03-b95a-9cb3688bf2ef/overview

Hybrid Analysis Bash.MiraiB.Generic

Verdict:

Malicious

Labled as:

Bash.MiraiB.Generic

Link:

https://www.hybrid-analysis.com/sample/b4cf8707c0e746457ba193723f618591926893e5812220592ff8cb2c87155415

Kaspersky OpenTIP Malicious

Verdict:

Malicious

File Type:

unix shell

First seen:

2025-10-04T18:49:00Z UTC

Last seen:

2025-10-04T19:39:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/b4cf8707c0e746457ba193723f618591926893e5812220592ff8cb2c87155415/results?tab=lookup

Kunai Sandbox

Status:

Failed

Link:

https://sandbox.kunai.rocks/analysis/c3815961-de3e-4478-85c4-a471050100b6

Nucleon Malprob Malware

Score:

100%

Verdict:

Malware

File Type:

SCRIPT

Link:

https://malprob.io/report/b4cf8707c0e746457ba193723f618591926893e5812220592ff8cb2c87155415

CERT.PL MWDB

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/b4cf8707c0e746457ba193723f618591926893e5812220592ff8cb2c87155415/

ReversingLabs TitaniumCloud Linux.Downloader.MiraiB

Threat name:

Linux.Downloader.MiraiB

Alert

Create hunting rule

Status:

Malicious

First seen:

2025-10-04 21:10:15 UTC

File Type:

Text (Shell)

AV detection:

17 of 38 (44.74%)

Threat level:

  3/5

Spamhaus Hash Blocklist Suspicious file

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=wthyob6a45dek65bsnzd6ymfsgjgre7fqercawjp7dfszbyvkqkq._file

VirusTotal

Please note that we are no longer able to provide a coverage score for Virus Total.

YOROI YOMI Malicious File

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/b4cf8707c0e746457ba193723f618591926893e5812220592ff8cb2c87155415