MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b7eb2971bd85907c6d2e9cafc3a71c8767410443bbda4dcc986fdc272c03954e. 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



Threat unknown


Vendor detections: 4


Intelligence 4 IOCs YARA 2 File information Comments

SHA256 hash: b7eb2971bd85907c6d2e9cafc3a71c8767410443bbda4dcc986fdc272c03954e
SHA3-384 hash: 5ad6dd3e40cc0113ddcbb4cc71efa40325ebd7c897e3ecaefd1cd1a3c95f72508f65e5e348c58679e1495a58efb8c36a
SHA1 hash: ac66695582f40cf8e5318b79a5ab1330688b2df8
MD5 hash: 59fab119a8a9d51de588a6f0e0ee6784
humanhash: spaghetti-mobile-maine-wisconsin
File name:kworker_u8
Download: download sample
File size:1'995'288 bytes
First seen:2026-06-25 06:58:26 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 49152:ANCpSVzW7SRI+AklmfxvXUXnyByRFe0cOxs88CqoIhd8:EqSVzWMIQ4VEiBwe8CCAha
TLSH T16A95330B025CA762E857F06AC536136ECFAA6C9B44B8320CB714CA2C178DC7977BD5E5
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 BlinkzSec

Intelligence


File Origin
# of uploads :
1
# of downloads :
52
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file
Status:
terminated
Behavior Graph:
%3 guuid=c4c21a3f-1f00-0000-584f-e1c748140000 pid=5192 /usr/bin/sudo guuid=21ad0a45-1f00-0000-584f-e1c749140000 pid=5193 /tmp/sample.bin net send-data write-file guuid=c4c21a3f-1f00-0000-584f-e1c748140000 pid=5192->guuid=21ad0a45-1f00-0000-584f-e1c749140000 pid=5193 execve 4f6baed0-9587-596c-82b3-fd721afe4cc1 10.0.2.3:53 guuid=21ad0a45-1f00-0000-584f-e1c749140000 pid=5193->4f6baed0-9587-596c-82b3-fd721afe4cc1 send: 49B 0beb8810-255f-5dd0-8861-0400a00142a0 45.76.149.237:443 guuid=21ad0a45-1f00-0000-584f-e1c749140000 pid=5193->0beb8810-255f-5dd0-8861-0400a00142a0 send: 226B guuid=21ad0a45-1f00-0000-584f-e1c749140000 pid=5194 /tmp/sample.bin guuid=21ad0a45-1f00-0000-584f-e1c749140000 pid=5193->guuid=21ad0a45-1f00-0000-584f-e1c749140000 pid=5194 clone guuid=21ad0a45-1f00-0000-584f-e1c749140000 pid=5195 /tmp/sample.bin guuid=21ad0a45-1f00-0000-584f-e1c749140000 pid=5193->guuid=21ad0a45-1f00-0000-584f-e1c749140000 pid=5195 clone guuid=21ad0a45-1f00-0000-584f-e1c749140000 pid=5196 /tmp/sample.bin net send-data guuid=21ad0a45-1f00-0000-584f-e1c749140000 pid=5193->guuid=21ad0a45-1f00-0000-584f-e1c749140000 pid=5196 clone guuid=21ad0a45-1f00-0000-584f-e1c749140000 pid=5197 /tmp/sample.bin net send-data write-file guuid=21ad0a45-1f00-0000-584f-e1c749140000 pid=5193->guuid=21ad0a45-1f00-0000-584f-e1c749140000 pid=5197 clone guuid=21ad0a45-1f00-0000-584f-e1c749140000 pid=5198 /tmp/sample.bin net guuid=21ad0a45-1f00-0000-584f-e1c749140000 pid=5193->guuid=21ad0a45-1f00-0000-584f-e1c749140000 pid=5198 clone guuid=21ad0a45-1f00-0000-584f-e1c749140000 pid=5196->4f6baed0-9587-596c-82b3-fd721afe4cc1 send: 98B guuid=21ad0a45-1f00-0000-584f-e1c749140000 pid=5196->0beb8810-255f-5dd0-8861-0400a00142a0 send: 1453B guuid=21ad0a45-1f00-0000-584f-e1c749140000 pid=5197->4f6baed0-9587-596c-82b3-fd721afe4cc1 send: 49B guuid=21ad0a45-1f00-0000-584f-e1c749140000 pid=5198->0beb8810-255f-5dd0-8861-0400a00142a0 con
Result
Malware family:
n/a
Score:
  6/10
Tags:
discovery linux
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
Writes file to tmp directory
Enumerates running processes
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:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
Rule name:upx_antiunpack_elf64
Author:JPCERT/CC Incident Response Group
Description:UPX Anti-Unpacking technique to magic renamed for ELF64

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

elf b7eb2971bd85907c6d2e9cafc3a71c8767410443bbda4dcc986fdc272c03954e

(this sample)

  
Delivery method
Distributed via web download

Comments