MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 691a2404ffd4acd39d74b956c463fee7082dd0fb1acc52783663d9d50c1490e8. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 691a2404ffd4acd39d74b956c463fee7082dd0fb1acc52783663d9d50c1490e8
SHA3-384 hash: 8ec9263cd70ea1b7fb4e6ea3e533b8c9e6a59dcbc99957d15514e90b6741043e9ec9437bcc94566c86debf2875d35ab6
SHA1 hash: e957c4ef6e868f61d587f6ecf4fcca3068c15fc8
MD5 hash: f950707010ba7c1608e1e3c3acec11f6
humanhash: april-red-west-echo
File name:hold.sh4
Download: download sample
Signature Mirai
Create hunting rule
File size:71'444 bytes
First seen:2025-01-30 11:21:44 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:FaxNrlb4vaC9s/mRF2XyabX4ARGD7KR9YnZ3ixHC18Lm7:FGRZqaC9s/mRF2XyabXvkqR23ixH/m7
TLSH T1B9638C76E41A1994CA458434A0E8CE741F63B1C093272EFB4AE9C2F59047EBDF41ABF4
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 :
1
# of downloads :
107
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:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=679b610f29ae628cf42b9622linux22vpnfull_triage
Tags:
gafgyt mirai
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
lolbin masquerade remote
Link:
https://www.filescan.io/uploads/679b60e2ac8b38d9947ec3b8/reports/dceb053a-4562-4a42-a96d-28945497b3b1/overview
Result
Verdict:
MALICIOUS
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/0f8f6355-a629-4715-94f8-df548316719e
Result
Threat name:
Mirai, Okiru
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1602984
Signature
Antivirus / Scanner detection for submitted sample
Drops files in suspicious directories
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample tries to persist itself using /etc/profile
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Yara detected Mirai
Yara detected Okiru
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1602984 Sample: hold.sh4.elf Startdate: 30/01/2025 Architecture: LINUX Score: 100 53 109.202.202.202, 80 INIT7CH Switzerland 2->53 55 91.189.91.42, 443 CANONICAL-ASGB United Kingdom 2->55 57 2 other IPs or domains 2->57 59 Malicious sample detected (through community Yara rule) 2->59 61 Antivirus / Scanner detection for submitted sample 2->61 63 Multi AV Scanner detection for submitted file 2->63 65 2 other signatures 2->65 8 dash rm hold.sh4.elf 2->8         started        12 systemd bash 2->12         started        14 dash rm 2->14         started        16 systemd snapd-env-generator 2->16         started        signatures3 process4 file5 45 /etc/systemd/system/holdservice.service, ASCII 8->45 dropped 47 /etc/rc.local, ASCII 8->47 dropped 49 /etc/profile, ASCII 8->49 dropped 51 /etc/init.d/holdservice, Bourne-Again 8->51 dropped 67 Sample tries to persist itself using /etc/profile 8->67 69 Drops files in suspicious directories 8->69 71 Sample deletes itself 8->71 73 Sample tries to persist itself using System V runlevels 8->73 18 hold.sh4.elf sh 8->18         started        20 hold.sh4.elf sh 8->20         started        22 hold.sh4.elf sh 8->22         started        28 3 other processes 8->28 24 bash wget 12->24         started        26 bash sh 12->26         started        signatures6 process7 process8 30 sh chmod 18->30         started        33 sh chmod 20->33         started        35 sh systemctl 22->35         started        37 sh systemctl 28->37         started        39 sh ln 28->39         started        41 hold.sh4.elf 28->41         started        43 2 other processes 28->43 signatures9 75 Sample tries to set files in /etc globally writable 30->75
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/691a2404ffd4acd39d74b956c463fee7082dd0fb1acc52783663d9d50c1490e8
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/691a2404ffd4acd39d74b956c463fee7082dd0fb1acc52783663d9d50c1490e8/
Threat name:
Linux.Trojan.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-01-30 11:22:06 UTC
File Type:
ELF32 Little (Exe)
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=nencibh72swnhhluxflmiy7644ec3uh3dlgfe6bwmpm5kdausdua._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:unstable linux
Link:
https://tria.ge/reports/250130-ngjzys1php/
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/1ddbfc63-982c-4545-aa78-c426ef5c4def
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Mirai
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/691a2404ffd4acd39d74b956c463fee7082dd0fb1acc52783663d9d50c1490e8

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

Mirai

elf 691a2404ffd4acd39d74b956c463fee7082dd0fb1acc52783663d9d50c1490e8

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3405913/
  
Delivery method
Distributed via web download

Comments