MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8efa6c815c8e10d68b92d571a5a7eecdd74accd9525c22f05a1f71ff8bbc039. 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: 9


Intelligence 9 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b8efa6c815c8e10d68b92d571a5a7eecdd74accd9525c22f05a1f71ff8bbc039
SHA3-384 hash: f56daf941baa4ed5bd36535fed0bd3690949e4e0f1630fc9f4331745b2f4c8008c259c0f3c4b05a1da35cb3c0686425d
SHA1 hash: 0635fb63a7703d291fa5faf2e097f0b1feb68bb6
MD5 hash: 2f41b92e59af6ac1c6ec025e34891c4e
humanhash: arizona-lima-muppet-winner
File name:wife.x86
Download: download sample
Signature Mirai
Create hunting rule
File size:60'956 bytes
First seen:2026-05-26 13:33:53 UTC
Last seen:2026-05-26 20:14:02 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:wx+GXudpe+d8iIHja3yiLc7/BTL4nouy8B8c:wxkdp5d8iejYyiLkBTLwoutB8c
TLSH T10953021DEA8E01C1DA8B167D8C8DBE26764EF77C67F08E215EE8113150277291573B1E
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 gafgyt UPX
File size (compressed) :60'956 bytes
File size (de-compressed) :159'432 bytes
Format:linux/i386
Unpacked file: 871ebd0b8c908a54d4c2fe087421b5222b77d0738d57042dd381f78b5abbb9ee

Intelligence

File Origin
# of uploads :
4
# of downloads :
45
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/876a634a-e977-425b-a36c-6d2a17b602fc/
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Changes access rights for a file
Creating a file
Deletes a file
Connection attempt
Sends data to a server
Runs as daemon
Receives data from a server
Kills processes
Deletes a system binary file
Substitutes an application name
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade packed upx
Link:
https://www.filescan.io/uploads/6a15a163e05d89b3613dfd4d/reports/9e1b1b6d-8dd9-4e09-b16f-9fcca0526cc3/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
UPX
Botnet:
unknown
Number of open files:
1
Number of processes launched:
3
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/b8efa6c815c8e10d68b92d571a5a7eecdd74accd9525c22f05a1f71ff8bbc039
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/6811a8aa-fa09-4a05-a408-61c5cf75513d
Behavior Graph:
Download SVG
%3 guuid=fc41c97d-1b00-0000-3be9-8dfabd0a0000 pid=2749 /usr/bin/sudo guuid=e5fecc80-1b00-0000-3be9-8dfabf0a0000 pid=2751 /tmp/sample.bin guuid=fc41c97d-1b00-0000-3be9-8dfabd0a0000 pid=2749->guuid=e5fecc80-1b00-0000-3be9-8dfabf0a0000 pid=2751 execve guuid=2ef73e82-1b00-0000-3be9-8dfac20a0000 pid=2754 /tmp/sample.bin guuid=e5fecc80-1b00-0000-3be9-8dfabf0a0000 pid=2751->guuid=2ef73e82-1b00-0000-3be9-8dfac20a0000 pid=2754 clone guuid=32f25482-1b00-0000-3be9-8dfac30a0000 pid=2755 /tmp/sample.bin delete-file net send-data write-file zombie guuid=2ef73e82-1b00-0000-3be9-8dfac20a0000 pid=2754->guuid=32f25482-1b00-0000-3be9-8dfac30a0000 pid=2755 clone 4f6baed0-9587-596c-82b3-fd721afe4cc1 10.0.2.3:53 guuid=32f25482-1b00-0000-3be9-8dfac30a0000 pid=2755->4f6baed0-9587-596c-82b3-fd721afe4cc1 send: 270B
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c13e32ae-8724-4e7a-ad6a-ca7288a70f46
Result
Threat name:
Gafgyt, Mirai
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/1918680
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample is packed with UPX
Sample tries to kill multiple processes (SIGKILL)
Yara detected Gafgyt
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1918680 Sample: wife.x86.elf Startdate: 26/05/2026 Architecture: LINUX Score: 84 18 Malicious sample detected (through community Yara rule) 2->18 20 Multi AV Scanner detection for submitted file 2->20 22 Yara detected Gafgyt 2->22 24 2 other signatures 2->24 7 wife.x86.elf 2->7         started        9 dash rm 2->9         started        11 dash rm 2->11         started        process3 process4 13 wife.x86.elf 7->13         started        process5 15 wife.x86.elf 13->15         started        signatures6 26 Sample tries to kill multiple processes (SIGKILL) 15->26 28 Sample deletes itself 15->28
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b8efa6c815c8e10d68b92d571a5a7eecdd74accd9525c22f05a1f71ff8bbc039
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b8efa6c815c8e10d68b92d571a5a7eecdd74accd9525c22f05a1f71ff8bbc039/
Threat name:
Linux.Trojan.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2026-05-26 13:34:28 UTC
File Type:
ELF32 Little (Exe)
AV detection:
7 of 36 (19.44%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xdx2nsavzdqq22fzfvlruwt65toxjlgnsus4elyfuh3r76f3ya4q._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
credential_access discovery linux upx
Link:
https://tria.ge/reports/260526-qva1badv3y/
Behaviour
Reads runtime system information
Changes its process name
Reads process memory
Enumerates running processes
Deletes itself
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.74
Link:
https://yomi.yoroi.company/submissions/b8efa6c815c8e10d68b92d571a5a7eecdd74accd9525c22f05a1f71ff8bbc039

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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
Rule name:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

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

Web download

Mirai

elf b8efa6c815c8e10d68b92d571a5a7eecdd74accd9525c22f05a1f71ff8bbc039

(this sample)

Mirai

elf 871ebd0b8c908a54d4c2fe087421b5222b77d0738d57042dd381f78b5abbb9ee

  
URLhaus
https://urlhaus.abuse.ch/url/3850288/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 871ebd0b8c908a54d4c2fe087421b5222b77d0738d57042dd381f78b5abbb9ee
  
Dropping
MD5 f0a16ae582898f87c53630ec22b2975e

Comments