MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a825331d7939c9b067cefd924611cd1f651ab1a06d505529518cdba6e3a741f2. 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: 7


Intelligence 7 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a825331d7939c9b067cefd924611cd1f651ab1a06d505529518cdba6e3a741f2
SHA3-384 hash: 2d5eb6ccf7c9e6e749ab7e7ada7a78e1b698decd56a5ce79169e9cce146ca9a4d51404de466de31905a1f6ddc2aa366e
SHA1 hash: 4a201bff4c32d83c30ebcfe01a1c69b2e2aec6d2
MD5 hash: 75fa30dc184ef0d4fa3a5dd50f74b10d
humanhash: nevada-fifteen-dakota-grey
File name:KFS.arm4
Download: download sample
Signature Mirai
Create hunting rule
File size:48'828 bytes
First seen:2022-06-20 16:31:50 UTC
Last seen:2022-06-20 17:36:50 UTC
File type: elf
MIME type:application/x-executable
ssdeep 768:ZtZjGL56gC5bA3YgwSY9QUe1NYnjZcPk5SC2xs3UozJ9G++WHlwBQ9Z5THQy+:ZfGL56/GhI1eHYnjOc5SCLzTGcAQ9Z5E
TLSH T13723F1B088CFF7528B9214339B2A8AEF715353DC95FA41B57742100C87FA4A910F9AD6
TrID 50.1% (.) ELF Executable and Linkable format (Linux) (4022/12)
49.8% (.O) ELF Executable and Linkable format (generic) (4000/1)
Reporter KdssSupport
Tags:arm4 elf mirai

Intelligence

File Origin
# of uploads :
2
# of downloads :
161
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.BackDoor.Fgt.1690.1242.4434.UNOFFICIAL
Create hunting rule

Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug
Link:
https://www.filescan.io/uploads/62b0a14146804683cbb74594/reports/e33bb270-16eb-4591-a6ad-e8cb05681639/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
UPX
Botnet:
unknown
Number of open files:
157
Number of processes launched:
8
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/a825331d7939c9b067cefd924611cd1f651ab1a06d505529518cdba6e3a741f2
Behaviour
Firewall Changes
Information Gathering
Kernel Modules
Botnet C2s
TCP botnet C2(s):
172.245.210.119:20129
UDP botnet C2(s):
not identified
Result
Verdict:
UNKNOWN
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b1f69daf-62d2-4628-9063-8958df4cf1c6
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1016646
Signature
Deletes security-related log files
Executes the "iptables" command to insert, remove and/or manipulate rules
Multi AV Scanner detection for submitted file
Opens /proc/net/* files useful for finding connected devices and routers
Sample deletes itself
Sample is packed with UPX
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 649168 Sample: KFS.arm4 Startdate: 20/06/2022 Architecture: LINUX Score: 76 40 109.202.202.202, 80 INIT7CH Switzerland 2->40 42 91.189.91.42, 443 CANONICAL-ASGB United Kingdom 2->42 44 2 other IPs or domains 2->44 46 Multi AV Scanner detection for submitted file 2->46 48 Yara detected Mirai 2->48 50 Sample is packed with UPX 2->50 10 KFS.arm4 2->10         started        signatures3 process4 signatures5 58 Opens /proc/net/* files useful for finding connected devices and routers 10->58 13 KFS.arm4 10->13         started        process6 process7 15 KFS.arm4 13->15         started        process8 17 KFS.arm4 sh 15->17         started        19 KFS.arm4 sh 15->19         started        21 KFS.arm4 sh 15->21         started        23 9 other processes 15->23 process9 25 sh rm 17->25         started        28 sh rm 19->28         started        30 sh iptables 21->30         started        32 sh iptables 23->32         started        34 sh rm 23->34         started        36 sh rm 23->36         started        38 5 other processes 23->38 signatures10 52 Sample deletes itself 25->52 54 Deletes security-related log files 28->54 56 Executes the "iptables" command to insert, remove and/or manipulate rules 30->56
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a825331d7939c9b067cefd924611cd1f651ab1a06d505529518cdba6e3a741f2/
Threat name:
Linux.Trojan.Mirai
Create hunting rule
Status:
Malicious
First seen:
2022-06-20 16:32:06 UTC
File Type:
ELF32 Little (Exe)
AV detection:
15 of 26 (57.69%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vastghlzhhe3az6o7wjemeond5srvmnanvifkkkrrtn2ny5hihza._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Link:
https://tria.ge/reports/220620-t1x9kshae4/
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/a825331d7939c9b067cefd924611cd1f651ab1a06d505529518cdba6e3a741f2

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:exploit_any_poppopret
Create hunting rule
Author:Jeff White [karttoon@gmail.com] @noottrak
Description:Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target 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
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research

File information

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

Web download

Mirai

elf a825331d7939c9b067cefd924611cd1f651ab1a06d505529518cdba6e3a741f2

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2246113/
  
Delivery method
Distributed via web download

Comments