MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c01fa3e23232da79e1ee1e722050ab8ac09b90bfebbf93a440bc1316ef7a127c. 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: 8


Intelligence 8 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c01fa3e23232da79e1ee1e722050ab8ac09b90bfebbf93a440bc1316ef7a127c
SHA3-384 hash: f576e57c420b12b7a79b9e3e8f012744cc97232b9570eafa1a92be5eed64a4495b74cb2c9948d094b529cb74210f0ddb
SHA1 hash: 0e281fa38dcd1c3db0f9059991a351ad4d67238d
MD5 hash: fdd5532c5ec4d3238d2fd36b0a0b187f
humanhash: eleven-delta-blossom-alanine
File name:pty3
Download: download sample
Signature Tsunami
Create hunting rule
File size:48'980 bytes
First seen:2021-12-23 10:25:21 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:OiLxh+reNihi1th267sCpgTw59MweK5MBNjMNJAWZWXeZxdcNm9t/sjucZ:tPe2tsCpWcMweK5MMDzo8dc89tDw
TLSH T1872301556973E6E0FAEE4EFB5A14408B98B1F413CF0729083EB63D0788797BD41A84B0
Reporter tolisec
Tags:elf log4j Tsunami

Intelligence

File Origin
# of uploads :
1
# of downloads :
182
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Unix.Trojan.Muhstik-7555544-0
Create hunting rule

Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/3009/overview
Behaviour
MalwareBazaar
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
67%
Tags:
anti-debug gafgyt kaiten muhstik tsunami
Link:
https://www.filescan.io/uploads/61c44ebc4ab5c44cbf4de4a5/reports/c316963f-7437-4f4a-9b53-90cf25ba6739/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
custom
Botnet:
unknown
Number of open files:
11
Number of processes launched:
9
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/c01fa3e23232da79e1ee1e722050ab8ac09b90bfebbf93a440bc1316ef7a127c
Behaviour
Persistence
Process Renaming
Information Gathering
Botnet C2s
TCP botnet C2(s):
156.67.220.165:8080
UDP botnet C2(s):
not identified
Result
Verdict:
MALICIOUS
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/42516543-602a-490a-aeb5-84d896857114
Result
Threat name:
Muhstik Tsunami
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/911966
Signature
Executes the "crontab" command typically for achieving persistence
Explicitly modifies time stamps using the "touch" command
Multi AV Scanner detection for submitted file
Sample tries to persist itself using cron
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Uses IRC for communication with a C&C
Uses known network protocols on non-standard ports
Writes identical ELF files to multiple locations
Yara detected Muhstik
Yara detected Tsunami
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 544445 Sample: pty3 Startdate: 23/12/2021 Architecture: LINUX Score: 96 107 156.67.220.165, 48714, 8080 AS-HOSTINGERLT Cyprus 2->107 109 l.deutschland-zahlung.net 2->109 111 4 other IPs or domains 2->111 115 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->115 117 Multi AV Scanner detection for submitted file 2->117 119 Yara detected Tsunami 2->119 121 3 other signatures 2->121 11 pty3 2->11         started        signatures3 process4 process5 13 pty3 11->13         started        15 pty3 11->15         started        17 pty3 11->17         started        19 8 other processes 11->19 process6 21 pty3 13->21         started        23 pty3 13->23         started        25 pty3 13->25         started        36 25 other processes 13->36 27 pty3 sh 15->27         started        29 pty3 sh 17->29         started        31 sh touch 19->31         started        34 pty3 sh 19->34         started        38 6 other processes 19->38 signatures7 40 pty3 sh 21->40         started        42 pty3 sh 23->42         started        44 pty3 sh 25->44         started        46 sh crontab 27->46         started        56 4 other processes 27->56 50 sh crontab 29->50         started        127 Explicitly modifies time stamps using the "touch" command 31->127 52 sh uname 34->52         started        54 pty3 sh 36->54         started        58 24 other processes 36->58 process8 file9 60 sh crontab 40->60         started        72 4 other processes 40->72 64 sh crontab 42->64         started        74 4 other processes 42->74 66 sh crontab 44->66         started        76 4 other processes 44->76 97 /var/spool/cron/crontabs/tmp.001wAF, ASCII 46->97 dropped 129 Sample tries to persist itself using cron 46->129 131 Executes the "crontab" command typically for achieving persistence 46->131 68 sh crontab 54->68         started        78 4 other processes 54->78 70 sh crontab 56->70         started        99 /var/tmp/pty3, ELF 58->99 dropped 101 /run/pty3, ELF 58->101 dropped 103 /run/lock/pty3, ELF 58->103 dropped 105 2 other malicious files 58->105 dropped 133 Writes identical ELF files to multiple locations 58->133 135 Explicitly modifies time stamps using the "touch" command 58->135 signatures10 process11 file12 89 /var/spool/cron/crontabs/tmp.FFzEXt, ASCII 60->89 dropped 123 Sample tries to persist itself using cron 60->123 125 Executes the "crontab" command typically for achieving persistence 60->125 91 /var/spool/cron/crontabs/tmp.7EMzq6, ASCII 64->91 dropped 93 /var/spool/cron/crontabs/tmp.2HVWUA, ASCII 66->93 dropped 95 /var/spool/cron/crontabs/tmp.ASDRld, ASCII 68->95 dropped 80 sh crontab 72->80         started        83 sh crontab 74->83         started        85 sh crontab 76->85         started        87 sh crontab 78->87         started        signatures13 process14 signatures15 113 Executes the "crontab" command typically for achieving persistence 80->113
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c01fa3e23232da79e1ee1e722050ab8ac09b90bfebbf93a440bc1316ef7a127c/
Threat name:
Linux.Trojan.Tsunami
Create hunting rule
Status:
Malicious
First seen:
2021-12-23 10:26:10 UTC
File Type:
ELF64 Little (Exe)
AV detection:
19 of 27 (70.37%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
linux persistence suricata
Link:
https://tria.ge/reports/211223-mgh7zsacfq/
Behaviour
Reads runtime system information
Writes file to tmp directory
Modifies rc script
Write file to user bin folder
Modifies hosts file
Writes DNS configuration
Writes file to system bin folder
suricata: ET MALWARE ELF/Muhstik Botnet CnC Activity
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/c01fa3e23232da79e1ee1e722050ab8ac09b90bfebbf93a440bc1316ef7a127c

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

File information

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

Web download

Tsunami

elf c01fa3e23232da79e1ee1e722050ab8ac09b90bfebbf93a440bc1316ef7a127c

(this sample)

  
URLhaus
http://51.250.28.5/.l/pty3
  
URLhaus
https://urlhaus.abuse.ch/url/1907027/
  
Delivery method
Distributed via web download

Comments