MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8f18c738a20bf65a34ab2c701c018eefe824bb2ff912a2b3907804de87af7f6c. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8f18c738a20bf65a34ab2c701c018eefe824bb2ff912a2b3907804de87af7f6c
SHA3-384 hash: 6ddcf13d778897427ffd7a6d4b49f5c6e8008f5ace2911dedfad77af33a46be143dce2a35572825c8519387b52e22ddb
SHA1 hash: 2c36c1d11e1ea8811bb91d8d02503af82e6a0738
MD5 hash: c70020deb918602d6e5f7eac9bccf89f
humanhash: july-salami-ohio-arkansas
File name:sumrak.i686
Download: download sample
Signature Mirai
Create hunting rule
File size:39'968 bytes
First seen:2025-12-20 16:57:02 UTC
Last seen:2025-12-21 02:21:25 UTC
File type: elf
MIME type:application/x-executable
ssdeep 768:M0j10/oBofL/LsmWWEUTccXob2Hx4OQ0fgrXMYLbnbcuyD7UHQRj/J:71sfL/LsxHUJXob2Hx5K8Y3nouy8HyjJ
TLSH T19303F11B40B8121CCABE907208D79C4F5184C70C994FC1BDDADDA77D9527F1A5948ED2
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) :39'968 bytes
File size (de-compressed) :89'612 bytes
Format:linux/i386
Unpacked file: 78b1a3a54eab3512fbb4c2e46ab69b412c038717ab023b1e7a586a599fe594d4

Intelligence

File Origin
# of uploads :
3
# of downloads :
41
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/3052aece-f662-4c19-a49c-839294dd9b58/
Detection(s):
Unix.Dropper.Mirai-7135858-0
Create hunting rule

Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-20T14:13:00Z UTC
Last seen:
2025-12-22T13:23:00Z UTC
Hits:
~100
Detections:
HEUR:Backdoor.Linux.Mirai.r HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.bl HEUR:Backdoor.Linux.Gafgyt.bj
Link:
https://opentip.kaspersky.com/8f18c738a20bf65a34ab2c701c018eefe824bb2ff912a2b3907804de87af7f6c/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/9b2044ba-ca2e-49f6-8d87-b25a9c6faae2
Behavior Graph:
Download SVG
%3 guuid=f3830f0e-2000-0000-9b25-e9963a0d0000 pid=3386 /usr/bin/sudo guuid=e1bd2d10-2000-0000-9b25-e996410d0000 pid=3393 /tmp/sample.bin net guuid=f3830f0e-2000-0000-9b25-e9963a0d0000 pid=3386->guuid=e1bd2d10-2000-0000-9b25-e996410d0000 pid=3393 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=e1bd2d10-2000-0000-9b25-e996410d0000 pid=3393->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=382ffb10-2000-0000-9b25-e996430d0000 pid=3395 /tmp/sample.bin guuid=e1bd2d10-2000-0000-9b25-e996410d0000 pid=3393->guuid=382ffb10-2000-0000-9b25-e996430d0000 pid=3395 clone guuid=27840711-2000-0000-9b25-e996440d0000 pid=3396 /tmp/sample.bin guuid=e1bd2d10-2000-0000-9b25-e996410d0000 pid=3393->guuid=27840711-2000-0000-9b25-e996440d0000 pid=3396 clone guuid=079a1011-2000-0000-9b25-e996460d0000 pid=3398 /tmp/sample.bin net send-data zombie guuid=e1bd2d10-2000-0000-9b25-e996410d0000 pid=3393->guuid=079a1011-2000-0000-9b25-e996460d0000 pid=3398 clone guuid=079a1011-2000-0000-9b25-e996460d0000 pid=3398->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con 6081b4f2-a8f4-54a6-ad7c-2654ee0f2625 141.98.10.91:19000 guuid=079a1011-2000-0000-9b25-e996460d0000 pid=3398->6081b4f2-a8f4-54a6-ad7c-2654ee0f2625 send: 285B guuid=7cb82111-2000-0000-9b25-e996470d0000 pid=3399 /tmp/sample.bin guuid=079a1011-2000-0000-9b25-e996460d0000 pid=3398->guuid=7cb82111-2000-0000-9b25-e996470d0000 pid=3399 clone guuid=f92f5d11-2000-0000-9b25-e996480d0000 pid=3400 /tmp/sample.bin guuid=079a1011-2000-0000-9b25-e996460d0000 pid=3398->guuid=f92f5d11-2000-0000-9b25-e996480d0000 pid=3400 clone
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9a34e8de-fa76-409c-9cdd-29759790981d
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
60 / 100
Link:
https://www.joesandbox.com/analysis/1836788
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1836788 Sample: sumrak.i686.elf Startdate: 20/12/2025 Architecture: LINUX Score: 60 24 109.202.202.202, 80 INIT7CH Switzerland 2->24 26 141.98.10.91, 19000, 37136, 37138 HOSTBALTICLT Lithuania 2->26 28 3 other IPs or domains 2->28 30 Malicious sample detected (through community Yara rule) 2->30 32 Multi AV Scanner detection for submitted file 2->32 34 Sample is packed with UPX 2->34 8 sumrak.i686.elf 2->8         started        10 dash rm 2->10         started        12 dash rm 2->12         started        signatures3 process4 process5 14 sumrak.i686.elf 8->14         started        16 sumrak.i686.elf 8->16         started        18 sumrak.i686.elf 8->18         started        process6 20 sumrak.i686.elf 14->20         started        22 sumrak.i686.elf 14->22         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/8f18c738a20bf65a34ab2c701c018eefe824bb2ff912a2b3907804de87af7f6c
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8f18c738a20bf65a34ab2c701c018eefe824bb2ff912a2b3907804de87af7f6c/
Verdict:
Malicious
Threat:
Family.Mirai
Link:
https://tip.neiki.dev/file/8f18c738a20bf65a34ab2c701c018eefe824bb2ff912a2b3907804de87af7f6c
Threat name:
Linux.Packed.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-20 14:08:41 UTC
File Type:
ELF32 Little (Exe)
AV detection:
19 of 36 (52.78%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=r4mmoofcbp3funflfrybyamo57ucjozp7ejkfm4qpacn5b5pp5wa._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:unst botnet defense_evasion discovery linux upx
Link:
https://tria.ge/reports/251220-vggm6awqal/
Behaviour
Reads runtime system information
Enumerates running processes
Modifies Watchdog functionality
Mirai
Mirai family
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7135858-0
YARA:
n/a
Link:
https://app.threat.zone/submission/573d3b0d-3e79-4707-9a84-e9610979b7ac
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/8f18c738a20bf65a34ab2c701c018eefe824bb2ff912a2b3907804de87af7f6c

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: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 8f18c738a20bf65a34ab2c701c018eefe824bb2ff912a2b3907804de87af7f6c

(this sample)

Mirai

elf 78b1a3a54eab3512fbb4c2e46ab69b412c038717ab023b1e7a586a599fe594d4

  
URLhaus
https://urlhaus.abuse.ch/url/3738084/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3738085/
  
URLhaus
https://urlhaus.abuse.ch/url/3738101/
  
URLhaus
https://urlhaus.abuse.ch/url/3738104/
  
Dropping
SHA256 78b1a3a54eab3512fbb4c2e46ab69b412c038717ab023b1e7a586a599fe594d4
  
Dropping
MD5 17517c13bbc9550f250ee00635a0f4a0

Comments