MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cfeb62389b127f7be95ffdc36f0fece427e505f4cfe0fe9c26d67798b3807cd5. 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 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cfeb62389b127f7be95ffdc36f0fece427e505f4cfe0fe9c26d67798b3807cd5
SHA3-384 hash: ce7bad5e956caf3dafb1ee10048b716fde07636a9612b09e888013f847ebe59a775042f3e474f9bacc61d1dcd8ce955d
SHA1 hash: 93a05376d53b016bd2573816512d299735193afd
MD5 hash: b5e09ae2d57b5f883186fb0d4f7bff89
humanhash: whiskey-timing-low-maryland
File name:Polar.arm7
Download: download sample
Signature Mirai
Create hunting rule
File size:251'908 bytes
First seen:2025-11-18 17:23:59 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 6144:htbd5MAzvC6QWOeqR+aY3vcp8t4Dp/GWC+Ge8V/GDB3l:fbdQ6+JR+aovcp8tIZ9I/y
TLSH T156343946EB804E13C0D627B9FA9F42453333D764D7E77306A9296BB03B837AA4F62505
telfhash t1af413fb29334912a1a61dc18e8ecab72483ec7171345fe77de25c8cc281944ee53ac0f
Magika elf
Reporter abuse_ch
Tags:elf gafgyt mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 85fbf87776219b69634250ea5920208a67f808eb85c0ea8201cefe934ac005f8
File size (compressed) :90'556 bytes
File size (de-compressed) :251'908 bytes
Format:linux/arm
Packed file: 85fbf87776219b69634250ea5920208a67f808eb85c0ea8201cefe934ac005f8

Intelligence

File Origin
# of uploads :
1
# of downloads :
45
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.28940.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30435.LC.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Siggen.9999-6.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7100807-0
Create hunting rule

Unix.Dropper.Mirai-7135897-0
Create hunting rule

Unix.Dropper.Mirai-7135901-0
Create hunting rule

Unix.Dropper.Mirai-7135909-0
Create hunting rule

Unix.Trojan.Mirai-7135916-0
Create hunting rule

Unix.Dropper.Mirai-7135918-0
Create hunting rule

Unix.Dropper.Mirai-7135925-0
Create hunting rule

Unix.Dropper.Mirai-7135954-0
Create hunting rule

Unix.Dropper.Mirai-7136016-0
Create hunting rule

Unix.Dropper.Mirai-7136028-0
Create hunting rule

Unix.Trojan.Mirai-8025795-0
Create hunting rule

Unix.Trojan.Mirai-9760303-0
Create hunting rule

Unix.Dropper.Mirai-10007027-0
Create hunting rule

Unix.Trojan.Mirai-10009361-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
gcc masquerade mirai rust
Link:
https://www.filescan.io/uploads/691cac4f56cb9be853a74589/reports/f1f6c55e-ddff-4e49-a8b7-38457941f620/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
48
Number of processes launched:
5
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/cfeb62389b127f7be95ffdc36f0fece427e505f4cfe0fe9c26d67798b3807cd5
Behaviour
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-11-18T15:35:00Z UTC
Last seen:
2025-11-20T15:00:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/cfeb62389b127f7be95ffdc36f0fece427e505f4cfe0fe9c26d67798b3807cd5/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/46175504-a0ac-4ab4-924b-c08675340b76
Behavior Graph:
Download SVG
%3 guuid=14ded780-2100-0000-7a09-d8bb89080000 pid=2185 /usr/bin/sudo guuid=9ef60d83-2100-0000-7a09-d8bb93080000 pid=2195 /tmp/sample.bin guuid=14ded780-2100-0000-7a09-d8bb89080000 pid=2185->guuid=9ef60d83-2100-0000-7a09-d8bb93080000 pid=2195 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5aad56c7-b81d-4298-b7f9-95b675a49979
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
56 / 100
Link:
https://www.joesandbox.com/analysis/1816301
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1816301 Sample: Polar.arm7.elf Startdate: 18/11/2025 Architecture: LINUX Score: 56 31 Malicious sample detected (through community Yara rule) 2->31 33 Antivirus / Scanner detection for submitted sample 2->33 9 Polar.arm7.elf 2->9         started        11 python3.8 dpkg 2->11         started        process3 process4 13 Polar.arm7.elf 9->13         started        15 Polar.arm7.elf 9->15         started        17 Polar.arm7.elf 9->17         started        process5 19 Polar.arm7.elf 13->19         started        21 Polar.arm7.elf 13->21         started        23 Polar.arm7.elf 15->23         started        process6 25 Polar.arm7.elf 19->25         started        27 Polar.arm7.elf 23->27         started        process7 29 Polar.arm7.elf 25->29         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/cfeb62389b127f7be95ffdc36f0fece427e505f4cfe0fe9c26d67798b3807cd5
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cfeb62389b127f7be95ffdc36f0fece427e505f4cfe0fe9c26d67798b3807cd5/
Threat name:
Linux.Trojan.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2025-11-18 17:26:41 UTC
File Type:
ELF32 Little (Exe)
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=z7vweoe3cj7xx2k77xbw6d7m4qt6kbpuz7qp5hbg2z3zrm4aptkq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai defense_evasion discovery
Link:
https://tria.ge/reports/251118-vztqfagy8g/
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Malware Config
C2 Extraction:
uraniumc2.ddns.net
Verdict:
Malicious
Tags:
trojan gafgyt Unix.Trojan.Mirai-7100807-0
YARA:
Linux_Trojan_Gafgyt_ea92cca8
Link:
https://app.threat.zone/submission/ecd024fb-3f1a-4566-a6cc-d893f4686710
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/cfeb62389b127f7be95ffdc36f0fece427e505f4cfe0fe9c26d67798b3807cd5

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:botnet_Yakuza
Create hunting rule
Author:NDA0E
Description:Yakuza botnet
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:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Gafgyt_ea92cca8
Create hunting rule
Author:Elastic Security
Rule name:MAL_ARM_LNX_Mirai_Mar13_2022
Create hunting rule
Author:Mehmet Ali Kerimoglu a.k.a. CYB3RMX
Description:Detects new ARM Mirai variant
Rule name:Mirai_Unpack
Create hunting rule
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
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 85fbf87776219b69634250ea5920208a67f808eb85c0ea8201cefe934ac005f8

Mirai

elf cfeb62389b127f7be95ffdc36f0fece427e505f4cfe0fe9c26d67798b3807cd5

(this sample)

  
Dropped by
SHA256 85fbf87776219b69634250ea5920208a67f808eb85c0ea8201cefe934ac005f8
  
URLhaus
https://urlhaus.abuse.ch/url/3711449/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3711457/
  
Dropped by
MD5 312b957e8841c008abcbb5f642c25c87

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