MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 77bad5191f4baf951e104bc7623e065d4b7e72c46eeb7b66c064c65608a1b93a. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 77bad5191f4baf951e104bc7623e065d4b7e72c46eeb7b66c064c65608a1b93a
SHA3-384 hash: 6cad60cfaaba7a47fb49b5bc88fdba132c60015762b76d9abdcea7ddd6ab89dca587bec0805525369a9d6fb8824b5126
SHA1 hash: c70eee7dd41df7b92967b03af67db0dacc228c58
MD5 hash: 4c1029e51a324c83fb4a43891c78b55d
humanhash: kansas-maryland-bulldog-california
File name:Polar.i686
Download: download sample
Signature Mirai
Create hunting rule
File size:59'128 bytes
First seen:2025-11-18 23:51:35 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:7DWMZ3iLD5d/G8dtJrxNQy0f6ldj6pEacm7gadnouy8HyZ:7DWMZ3atd/Gs50f6Tj6iachaloutS
TLSH T1D743020138EEE74DDC1DB1B59863BAC67C74C125B07DB3A057E778256E02EB6AC082E5
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 mirai UPX
File size (compressed) :59'128 bytes
File size (de-compressed) :145'772 bytes
Format:linux/i386
Unpacked file: 2eb0d5f10c851a679445c88d5673ed409076bc38f9a5d4cc94645e9252936d1c

Intelligence

File Origin
# of uploads :
1
# of downloads :
54
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Dropper.Mirai-7135858-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Opens a port
Sends data to a server
DNS request
Connection attempt
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade packed upx
Link:
https://www.filescan.io/uploads/691d06b3d7c81eabf165f4ac/reports/a5266c89-2ddd-4a9a-b142-0328c34b2c4e/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
UPX
Botnet:
unknown
Number of open files:
46
Number of processes launched:
6
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/77bad5191f4baf951e104bc7623e065d4b7e72c46eeb7b66c064c65608a1b93a
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:
2025-11-18T19:52:00Z UTC
Last seen:
2025-11-20T10:47:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/77bad5191f4baf951e104bc7623e065d4b7e72c46eeb7b66c064c65608a1b93a/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/dd5aeb9a-58ab-4249-8732-15f3322a5027
Behavior Graph:
Download SVG
%3 guuid=11e3247b-1a00-0000-8941-306695080000 pid=2197 /usr/bin/sudo guuid=be20b47c-1a00-0000-8941-306699080000 pid=2201 /tmp/sample.bin net guuid=11e3247b-1a00-0000-8941-306695080000 pid=2197->guuid=be20b47c-1a00-0000-8941-306699080000 pid=2201 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=be20b47c-1a00-0000-8941-306699080000 pid=2201->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=a992a57d-1a00-0000-8941-30669e080000 pid=2206 /tmp/sample.bin guuid=be20b47c-1a00-0000-8941-306699080000 pid=2201->guuid=a992a57d-1a00-0000-8941-30669e080000 pid=2206 clone guuid=beb743aa-1b00-0000-8941-3066f60a0000 pid=2806 /tmp/sample.bin guuid=be20b47c-1a00-0000-8941-306699080000 pid=2201->guuid=beb743aa-1b00-0000-8941-3066f60a0000 pid=2806 clone guuid=c69f55aa-1b00-0000-8941-3066f70a0000 pid=2807 /tmp/sample.bin net send-data zombie guuid=be20b47c-1a00-0000-8941-306699080000 pid=2201->guuid=c69f55aa-1b00-0000-8941-3066f70a0000 pid=2807 clone guuid=8d1daf7d-1a00-0000-8941-30669f080000 pid=2207 /tmp/sample.bin guuid=a992a57d-1a00-0000-8941-30669e080000 pid=2206->guuid=8d1daf7d-1a00-0000-8941-30669f080000 pid=2207 clone guuid=432db87d-1a00-0000-8941-3066a0080000 pid=2208 /tmp/sample.bin dns net send-data zombie guuid=a992a57d-1a00-0000-8941-30669e080000 pid=2206->guuid=432db87d-1a00-0000-8941-3066a0080000 pid=2208 clone guuid=432db87d-1a00-0000-8941-3066a0080000 pid=2208->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 246B 835e2637-8ea8-5733-9bcd-e417a3d56db3 lolzzmortex.duckdns.org:69 guuid=432db87d-1a00-0000-8941-3066a0080000 pid=2208->835e2637-8ea8-5733-9bcd-e417a3d56db3 send: 4B guuid=c69f55aa-1b00-0000-8941-3066f70a0000 pid=2807->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 1230B 310a0ed0-c544-54ca-bf3f-fca55e459297 65.222.202.53:80 guuid=c69f55aa-1b00-0000-8941-3066f70a0000 pid=2807->310a0ed0-c544-54ca-bf3f-fca55e459297 send: 4B
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0dcff68a-86c0-4a83-829e-677bc525f179
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1816599
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Uses dynamic DNS services
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1816599 Sample: Polar.i686.elf Startdate: 19/11/2025 Architecture: LINUX Score: 64 22 lolzzmortex.duckdns.org 2->22 24 169.254.169.254, 80 USDOSUS Reserved 2->24 26 3 other IPs or domains 2->26 28 Malicious sample detected (through community Yara rule) 2->28 30 Multi AV Scanner detection for submitted file 2->30 32 Sample is packed with UPX 2->32 8 Polar.i686.elf 2->8         started        10 python3.8 dpkg 2->10         started        signatures3 34 Uses dynamic DNS services 22->34 process4 process5 12 Polar.i686.elf 8->12         started        14 Polar.i686.elf 8->14         started        16 Polar.i686.elf 8->16         started        process6 18 Polar.i686.elf 12->18         started        20 Polar.i686.elf 12->20         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/77bad5191f4baf951e104bc7623e065d4b7e72c46eeb7b66c064c65608a1b93a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/77bad5191f4baf951e104bc7623e065d4b7e72c46eeb7b66c064c65608a1b93a/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-11-18 23:52:19 UTC
File Type:
ELF32 Little (Exe)
AV detection:
17 of 36 (47.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=o65nkgi7joxzkhqqjpdwepqglvfx44wen3vxwzwamtdfmcfbxe5a._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery linux upx
Link:
https://tria.ge/reports/251118-3wt6ssdl8v/
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Mirai
Mirai family
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7135858-0
YARA:
n/a
Link:
https://app.threat.zone/submission/934d7012-d198-4879-bd02-677e6d816d45
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/77bad5191f4baf951e104bc7623e065d4b7e72c46eeb7b66c064c65608a1b93a

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: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: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 77bad5191f4baf951e104bc7623e065d4b7e72c46eeb7b66c064c65608a1b93a

(this sample)

Mirai

elf 2eb0d5f10c851a679445c88d5673ed409076bc38f9a5d4cc94645e9252936d1c

  
URLhaus
https://urlhaus.abuse.ch/url/3711498/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 2eb0d5f10c851a679445c88d5673ed409076bc38f9a5d4cc94645e9252936d1c
  
Dropping
MD5 3210a09db7ad12c443f84533da028a06
  
URLhaus
https://urlhaus.abuse.ch/url/3711495/

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