MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 914bd1c36c75f651608bb412f7e37520c58d1360d9b78f5f4c81d02339a4d25b. 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: 10


Intelligence 10 IOCs YARA 6 File information Comments
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SHA256 hash: 914bd1c36c75f651608bb412f7e37520c58d1360d9b78f5f4c81d02339a4d25b
SHA3-384 hash: a20ff1064d380369a2830fd96d0485e24ae46aef78acbd82fe1bee9d1c1cfe01af833a6088b0b8c63e617179db811d9f
SHA1 hash: 5424d574b612e6c1ac5baf94ad5b75dae9f7e6dd
MD5 hash: 81bb1b0bb10e26d17b4fe8b6213b2641
humanhash: lamp-aspen-maryland-colorado
File name:hold.sh4
Download: download sample
Signature Mirai
Create hunting rule
File size:67'280 bytes
First seen:2025-01-19 14:16:43 UTC
Last seen:2025-01-20 12:30:15 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:3kruZXUp6C9s/mRG29yWzX7vm0R9t8emKtRMze723VCY5ISgOU:3kSFg6C9s/mRG29yWzXbm69t/Zth72l4
TLSH T12B639C36E4255E84D14A48787068CE351F63B1C483975EFB1AAAC2F1A087DFCF51ABE4
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

Intelligence

File Origin
# of uploads :
2
# of downloads :
88
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.29325.LC.Pl.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Mirai-81.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30455.LC.BadVar.UNOFFICIAL
Create hunting rule

Unix.Dropper.Mirai-7135906-0
Create hunting rule

Unix.Dropper.Mirai-7135966-0
Create hunting rule

Unix.Dropper.Mirai-7135979-0
Create hunting rule

Unix.Dropper.Mirai-7136288-0
Create hunting rule

Unix.Trojan.Mirai-7138377-0
Create hunting rule

Unix.Trojan.Mirai-7674518-0
Create hunting rule

Unix.Trojan.Generic-9910199-0
Create hunting rule

Unix.Trojan.Mirai-9935718-0
Create hunting rule

Unix.Trojan.Mirai-9945193-0
Create hunting rule

Unix.Trojan.Mirai-9946826-0
Create hunting rule

Unix.Dropper.Mirai-10008433-0
Create hunting rule

Unix.Trojan.Mirai-10028946-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=678e2c14b5602ee8cdad79a2linux22vpnfull_triage
Tags:
gafgyt mirai
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
lolbin masquerade remote
Link:
https://www.filescan.io/uploads/678d09652d219e36112b0fb9/reports/6ce43d36-e2a7-4da4-891f-8f1c63f747c8/overview
Result
Verdict:
MALICIOUS
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/fabc6914-2ed4-4908-a3b6-663130f60d1c
Result
Threat name:
Mirai, Okiru
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1594619
Signature
Antivirus / Scanner detection for submitted sample
Connects to many ports of the same IP (likely port scanning)
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample reads /proc/mounts (often used for finding a writable filesystem)
Sample tries to kill a massive number of system processes
Sample tries to kill multiple processes (SIGKILL)
Yara detected Mirai
Yara detected Okiru
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1594619 Sample: hold.sh4.elf Startdate: 19/01/2025 Architecture: LINUX Score: 100 54 krkrdoskslansldkalsd.o-r.kr 193.143.1.66, 42374, 42376, 42378 BITWEB-ASRU unknown 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 Antivirus / Scanner detection for submitted sample 2->58 60 Multi AV Scanner detection for submitted file 2->60 62 3 other signatures 2->62 8 hold.sh4.elf 2->8         started        11 systemd gpu-manager 2->11         started        13 systemd gpu-manager 2->13         started        15 100 other processes 2->15 signatures3 process4 signatures5 64 Sample deletes itself 8->64 17 hold.sh4.elf 8->17         started        19 gpu-manager sh 11->19         started        21 gpu-manager sh 11->21         started        23 gpu-manager sh 11->23         started        29 4 other processes 11->29 31 6 other processes 13->31 66 Sample reads /proc/mounts (often used for finding a writable filesystem) 15->66 25 gpu-manager sh 15->25         started        27 gpu-manager sh 15->27         started        33 10 other processes 15->33 process6 process7 45 2 other processes 17->45 35 sh grep 19->35         started        37 sh grep 21->37         started        39 sh grep 23->39         started        41 sh grep 25->41         started        43 sh grep 27->43         started        48 4 other processes 29->48 50 6 other processes 31->50 52 5 other processes 33->52 signatures8 68 Sample tries to kill a massive number of system processes 45->68 70 Sample tries to kill multiple processes (SIGKILL) 45->70
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/914bd1c36c75f651608bb412f7e37520c58d1360d9b78f5f4c81d02339a4d25b
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/914bd1c36c75f651608bb412f7e37520c58d1360d9b78f5f4c81d02339a4d25b/
Threat name:
Linux.Trojan.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-01-19 14:17:07 UTC
File Type:
ELF32 Little (Exe)
AV detection:
21 of 38 (55.26%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=sff5dq3mox3fcyelwqjppy3vedcy2e3a3g3y6x2mqhicgone2jnq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:unstable linux
Link:
https://tria.ge/reports/250119-rlpb1s1qfp/
Verdict:
Malicious
Tags:
trojan gafgyt Unix.Dropper.Mirai-7135906-0
YARA:
Linux_Trojan_Gafgyt_28a2fe0c Linux_Gafgyt_May_2024
Link:
https://app.threat.zone/submission/6732bf00-9b83-4b4f-aec1-bb64128c9ecc
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/914bd1c36c75f651608bb412f7e37520c58d1360d9b78f5f4c81d02339a4d25b

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:Linux_Generic_Threat_3bcc1630
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_28a2fe0c
Create hunting rule
Author:Elastic Security
Rule name:SUSP_XORed_Mozilla_Oct19
Create hunting rule
Author:Florian Roth
Description:Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()
Rule name:SUSP_XORed_Mozilla_RID2DB4
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
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

Xorbot

sh 756fa55e786f4bb0bca140217e4d0f6ee14cdc505ac09e9697ffdcdc744cb688

Mirai

elf 914bd1c36c75f651608bb412f7e37520c58d1360d9b78f5f4c81d02339a4d25b

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3405913/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3405938/
  
Dropped by
SHA256 756fa55e786f4bb0bca140217e4d0f6ee14cdc505ac09e9697ffdcdc744cb688
  
Dropped by
MD5 fb9f51dd0fbe7ab305b8a7b6dd8e629f
  
Dropped by
SHA256 802abfe0ffa2da3b71e05bd3025b367a3fba36baeb1bd8b943fe8555ab91eb88
  
Dropped by
MD5 193b3e0aa91a8ed97ac37c1685d2e53f
  
URLhaus
https://urlhaus.abuse.ch/url/3383269/
  
URLhaus
https://urlhaus.abuse.ch/url/3394574/

Comments