MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91a55c8ad534fb2c4f3f1d1357c326bf5211d044a993c4b0969292e7b9d7b071. 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


Tsunami


Vendor detections: 9


Intelligence 9 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 91a55c8ad534fb2c4f3f1d1357c326bf5211d044a993c4b0969292e7b9d7b071
SHA3-384 hash: 7283bf3dbb941843079597179a1d6d332dd44de82d027bb8b0abc3426dbfca1a3d402b113fea68045050f1495e7499e0
SHA1 hash: beaba3c3b15d92a2e7b28de856b386bfce6a5ab2
MD5 hash: 52e2c364e2e1533a738643996bcff28f
humanhash: steak-kitten-network-thirteen
File name:b1
Download: download sample
Signature Tsunami
Create hunting rule
File size:185'352 bytes
First seen:2025-02-08 05:16:24 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:HI6wu5xyeXRzYaWnEpNpodhBDmHpDBzO4k80W+f3hH2LgXWye45v374lI5yVgzFj:lI1vS3rr+IgzFjtSY+9aU1GrX
TLSH T15604F12DBE217B7ED6B8863147FA2FB8D31611D33692D280E17DC6185EB025C0D9EB64
telfhash t1d2219d18493823f097b15ddd6becff72e5a170db5b252d378e10e9ad9a6d8829d00c1c
Magika elf
Reporter abuse_ch
Tags:elf Tsunami

Intelligence

File Origin
# of uploads :
1
# of downloads :
556
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Trojan.Mirai-9441505-0
Create hunting rule

Verdict:
Clean
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67a6e9935ca88ce643b7e942linux22vpnfull_triage
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Collects information on the network activity
Creating a file
Kills processes
Sends data to a server
Substitutes an application name
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
not packed
Botnet:
unknown
Number of open files:
12
Number of processes launched:
1
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/91a55c8ad534fb2c4f3f1d1357c326bf5211d044a993c4b0969292e7b9d7b071
Behaviour
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/c35fb005-23a5-439f-b7e8-305aa3fdd2ae
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1610020
Signature
Connects to many ports of the same IP (likely port scanning)
Multi AV Scanner detection for submitted file
Sample tries to kill multiple processes (SIGKILL)
Suricata IDS alerts for network traffic
Uses known network protocols on non-standard ports
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1610020 Sample: b1.elf Startdate: 08/02/2025 Architecture: LINUX Score: 68 30 41.26.184.252, 37215, 64043 VODACOM-ZA South Africa 2->30 32 197.43.51.192, 36288, 37215, 64043 TE-ASTE-ASEG Egypt 2->32 34 98 other IPs or domains 2->34 36 Suricata IDS alerts for network traffic 2->36 38 Multi AV Scanner detection for submitted file 2->38 40 Connects to many ports of the same IP (likely port scanning) 2->40 42 Uses known network protocols on non-standard ports 2->42 9 b1.elf 2->9         started        12 xfce4-panel wrapper-2.0 2->12         started        14 xfce4-panel wrapper-2.0 2->14         started        16 4 other processes 2->16 signatures3 process4 signatures5 44 Sample tries to kill multiple processes (SIGKILL) 9->44 18 b1.elf 9->18         started        process6 process7 20 b1.elf 18->20         started        process8 22 b1.elf 20->22         started        24 b1.elf 20->24         started        26 b1.elf 20->26         started        28 2 other processes 20->28
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/91a55c8ad534fb2c4f3f1d1357c326bf5211d044a993c4b0969292e7b9d7b071
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/91a55c8ad534fb2c4f3f1d1357c326bf5211d044a993c4b0969292e7b9d7b071/
Threat name:
Linux.Backdoor.Tsunami
Create hunting rule
Status:
Malicious
First seen:
2025-02-08 05:17:10 UTC
File Type:
ELF32 Big (Exe)
AV detection:
9 of 38 (23.68%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=sgsvzcwvgt5sytz7dujvpqzgx5jbducevgj4jmewskjopooxwbyq._file
Result
Malware family:
n/a
Score:
  9/10
Tags:
discovery
Link:
https://tria.ge/reports/250208-fyq6layncn/
Behaviour
Reads runtime system information
Changes its process name
Reads system network configuration
Enumerates active TCP sockets
Enumerates running processes
Contacts a large (29175) amount of remote hosts
Creates a large amount of network flows
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-9441505-0
YARA:
n/a
Link:
https://app.threat.zone/submission/3d751274-f653-4749-83ee-a119108f1038
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/91a55c8ad534fb2c4f3f1d1357c326bf5211d044a993c4b0969292e7b9d7b071

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: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

Tsunami

elf 91a55c8ad534fb2c4f3f1d1357c326bf5211d044a993c4b0969292e7b9d7b071

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3431035/
  
Delivery method
Distributed via web download

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments