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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4bf406172374a1ee8a9b3feb09edabf2e7db056d599c33fbc690eace66f0a9a8. 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 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4bf406172374a1ee8a9b3feb09edabf2e7db056d599c33fbc690eace66f0a9a8
SHA3-384 hash: 86b3b1ef3b19402f2b2d9404dacf379e539332930f0f0eaf8ab545937437a92857693e2f7cc4d8553cab7ffc54f2fe5d
SHA1 hash: 83e0bda6b530e48e1575e88f341289389dfa791a
MD5 hash: 738239c72aade4e34da0f8bcc8170e96
humanhash: queen-leopard-happy-uncle
File name:a1e934b757fed45f.bin
Download: download sample
Signature Mirai
Create hunting rule
File size:556'092 bytes
First seen:2026-10-13 22:25:38 UTC
Last seen:Never
File type: elf
MIME type:application/x-sharedlib
ssdeep 6144:fLWepI/v2uIXk0fK0fp0YiUDs5ItNPrYr5krtCg3LIKSz4zmRh16ri1T63:9czI/Kq0Y8KDjY+pn0x6rgT63
TLSH T104C4398953B1DFDDF324D93103B36E576DB6023331D3A685E16EE92227A124858AFE70
telfhash t123f0f828183823f5c3c58d5ea7edff34a8a180d759761e33ce54e8aaa7259868c01d2c
Magika elf
Reporter abuse_ch
Tags:elf mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 a1e934b757fed45fd8375307543385366f53ad33d36aa3f29cc684a87077d941
File size (compressed) :179'580 bytes
File size (de-compressed) :556'092 bytes
Format:linux/mips
Packed file: a1e934b757fed45fd8375307543385366f53ad33d36aa3f29cc684a87077d941

Intelligence

File Origin
# of uploads :
1
# of downloads :
101
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.30435.LC.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Mirai-44.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creates directories
Creating a file
Connection attempt
Opens a port
Creating a file in the %temp% subdirectories
Runs as daemon
Creating a file in the %temp% directory
Traces processes
Writes files to system directory
Substitutes an application name
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
base64 expand lolbin masquerade obfuscated
Link:
https://www.filescan.io/uploads/6aceb0056d047129e7cd3ee6/reports/86a02648-f175-4150-9cd0-a3c2da7acfa9/overview
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2026-10-12T06:59:00Z UTC
Last seen:
2026-10-12T07:11:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/4bf406172374a1ee8a9b3feb09edabf2e7db056d599c33fbc690eace66f0a9a8/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/5836c177-a343-4eea-95ff-ef5fe1ad8fef
Behavior Graph:
Download SVG
%3 guuid=6effc9b5-1a00-0000-4e2d-08bc7d080000 pid=2173 /usr/bin/sudo guuid=dfef25b9-1a00-0000-4e2d-08bc81080000 pid=2177 /tmp/sample.bin guuid=6effc9b5-1a00-0000-4e2d-08bc7d080000 pid=2173->guuid=dfef25b9-1a00-0000-4e2d-08bc81080000 pid=2177 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/26224d83-e6c2-4fc9-90fe-702138c9c58d
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/4bf406172374a1ee8a9b3feb09edabf2e7db056d599c33fbc690eace66f0a9a8
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4bf406172374a1ee8a9b3feb09edabf2e7db056d599c33fbc690eace66f0a9a8/
Threat name:
Linux.Exploit.DirtyFrag
Create hunting rule
Status:
Malicious
First seen:
2026-10-12 10:20:37 UTC
File Type:
ELF32 Big (SO)
AV detection:
18 of 36 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jp2amfzdosq65cu3h7vqt3nl6lt5wblnlgodh66gsdvm4zxqvgua._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai antivm botnet defense_evasion discovery execution persistence privilege_escalation
Link:
https://tria.ge/reports/261013-2clvms1y9k/
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
Writes file to shm directory
Writes file to tmp directory
Changes its process name
Checks CPU configuration
Creates a desktop entry file
Modifies Bash startup script
Creates/modifies Cron job
Creates/modifies environment variables
Deletes log files
Modifies init.d
Modifies rc script
Modifies systemd
Write file to user bin folder
Writes file to system bin folder
Executes dropped EXE
Modifies Watchdog functionality
Traces itself
Unexpected DNS network traffic destination
Detects Mirai
Family: Mirai
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/4bf406172374a1ee8a9b3feb09edabf2e7db056d599c33fbc690eace66f0a9a8

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
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Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:Detect_all_IPv6_variants
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Author:Bierchermuesli
Description:Generic IPv6 catcher
Rule name:elf_arm_mips_ko_so
Create hunting rule
Rule name:ELF_Packer_Dropper_Fileless_Armhf
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Author:Serhii Kocherhan
Description:Detects obfuscated Linux ELF packers/droppers featuring ChaCha20/RC4 decryption, memfd_create/execveat fileless execution capabilities, and unique binary artifacts.
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:EXPL_HKTL_LNX_DirtyFragShellcode_May26
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Author:Pezier Pierre-Henri (Nextron Systems)
Description:Detects a shellcode observed in dirtyfrag, a local privilege escalation exploit for Linux.
Reference:https://github.com/V4bel/dirtyfrag/tree/master
Rule name:EXPL_LNX_DirtyFrag_ForensicArtefacts_May26
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Author:Florian Roth
Description:Detects DirtyFrag exploit code POC usage in Linux environments
Reference:https://github.com/V4bel/dirtyfrag/tree/master
Rule name:Linux_Exploit_CVE_2018_10562_badc0676
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Author:Elastic Security
Description:Exploit code used in the ZeroBot malware
Rule name:Linux_Exploit_CVE_2021_46422_69af1b79
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Author:Elastic Security
Description:Exploit code used in the ZeroBot malware
Rule name:LIN_Malware_Unknown_ForgeAuto_0daebbb8
Create hunting rule
Author:Marjoriefort
Description:Detects Unknown (elf, etat binaire)
Rule name:MIRAI_OHSHIT_payload
Create hunting rule
Author:AfterPacket
Description:MIRAI_OHSHIT ELF payload -- compiled-in C2 set, all architectures
Reference:https://github.com/Afterpacket/drosera-threat-intel
Rule name:NSVPS_Hydra_SSH_Bruteforce
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Author:sanad (NSVPS-SOC)
Description:Hydra SSH brute-force campaign credentials pattern from NSVPS honeypot
Rule name:RANSOMWARE
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Author:ToroGuitar
Rule name:RIPEMD160_Constants
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Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:setsockopt
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Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
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 a1e934b757fed45fd8375307543385366f53ad33d36aa3f29cc684a87077d941

Mirai

elf 4bf406172374a1ee8a9b3feb09edabf2e7db056d599c33fbc690eace66f0a9a8

(this sample)

  
Dropped by
SHA256 a1e934b757fed45fd8375307543385366f53ad33d36aa3f29cc684a87077d941
  
Dropped by
MD5 2ad292f625da070d9c3d4ad197e71d25

Comments