MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b2b7259f28f175afda3273c05113c1855ac1dc9478cdcb3730fd4aa8bb3ddce1. 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: 13


Intelligence 13 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b2b7259f28f175afda3273c05113c1855ac1dc9478cdcb3730fd4aa8bb3ddce1
SHA3-384 hash: fbe022d0e25f18100c5d4c1f340833c42155c7df63a0b78aa18c7bfdf0cbcb5bb392212f04a981d3fdd15a38c61dc780
SHA1 hash: cf57bc838388792ffa6eed0d171e7cf59f1b9f0d
MD5 hash: b68bdebddddfd9506637eef57ada50c5
humanhash: romeo-high-nevada-mountain
File name:dvwkja7
Download: download sample
Signature Mirai
Create hunting rule
File size:217'047 bytes
First seen:2024-11-29 01:31:29 UTC
Last seen:2024-12-04 21:03:32 UTC
File type: elf
MIME type:application/x-executable
ssdeep 6144:bhpTxexSpqERVR9kmat421IrX5u+FPENCYTdUM/RWhY:bnxcwRV3kmaS21Irpf9ETdp/AO
TLSH T149241946AA418F13C4D627BAF6DF42453333A75493EB73069924AFB43B8779E4F22601
telfhash t1b5412cb2a72545295a90d868d8ed57b2262ec7172341ff33ef35c48c681a44ee62bc0f
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
24
# of downloads :
120
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.28880.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.29325.LC.Pl.UNOFFICIAL
Create hunting rule

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

Sanesecurity.Malware.28886.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30423.LX.BOT.UNOFFICIAL
Create hunting rule

Unix.Dropper.Mirai-7135925-0
Create hunting rule

Unix.Dropper.Mirai-7139229-0
Create hunting rule

Unix.Trojan.Mirai-9441505-0
Create hunting rule

Unix.Trojan.Mirai-9760303-0
Create hunting rule

Unix.Trojan.Mirai-9970440-0
Create hunting rule

Unix.Trojan.Mirai-10011027-0
Create hunting rule

Unix.Trojan.Mirai-10011918-0
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67491b4d04c232bff3b489b5linux22vpnfull_triage
Tags:
mirai ddos
Result
Verdict:
Malware
Maliciousness:

Behaviour
Collects information on the CPU
Runs as daemon
Connection attempt
Creating a file
Receives data from a server
DNS request
Collects information on the RAM
Launching a process
Opens a port
Sends data to a server
Substitutes an application name
Deleting of the original file
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
bash gcc lolbin mirai remote
Link:
https://www.filescan.io/uploads/674919976f67292d422734c9/reports/eabffcf6-57e9-473a-883f-1f09d8b795c2/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
true
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
197
Number of processes launched:
3
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/b2b7259f28f175afda3273c05113c1855ac1dc9478cdcb3730fd4aa8bb3ddce1
Behaviour
Anti-VM
Process Renaming
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/baa3bc37-50b5-4619-a4e0-ec3f0a349494
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1564938
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Reads system files that contain records of logged in users
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)
Sends malformed DNS queries
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1564938 Sample: dvwkja7.elf Startdate: 29/11/2024 Architecture: LINUX Score: 100 103 raw.cardiacpure.ru. [malformed] 2->103 105 raw.cardiacpure.ru 178.215.238.4, 33966, 52696, 52728 LVLT-10753US Germany 2->105 107 6 other IPs or domains 2->107 113 Malicious sample detected (through community Yara rule) 2->113 115 Antivirus / Scanner detection for submitted sample 2->115 117 Multi AV Scanner detection for submitted file 2->117 119 Yara detected Mirai 2->119 11 systemd gdm3 2->11         started        13 dvwkja7.elf 2->13         started        15 systemd gdm3 2->15         started        17 41 other processes 2->17 signatures3 121 Sends malformed DNS queries 103->121 process4 file5 21 gdm3 gdm-session-worker 11->21         started        34 3 other processes 11->34 23 dvwkja7.elf 13->23         started        26 gdm3 gdm-session-worker 15->26         started        36 3 other processes 15->36 101 /var/log/wtmp, data 17->101 dropped 109 Sample reads /proc/mounts (often used for finding a writable filesystem) 17->109 111 Reads system files that contain records of logged in users 17->111 28 systemd dbus-daemon 17->28         started        30 accounts-daemon language-validate 17->30         started        32 accounts-daemon language-validate 17->32         started        38 21 other processes 17->38 signatures6 process7 signatures8 40 gdm-session-worker gdm-wayland-session 21->40         started        123 Sample deletes itself 23->123 42 dvwkja7.elf 23->42         started        45 gdm-session-worker gdm-wayland-session 26->45         started        125 Sample reads /proc/mounts (often used for finding a writable filesystem) 28->125 47 language-validate language-options 30->47         started        49 language-validate language-options 32->49         started        51 sh grep 38->51         started        53 sh grep 38->53         started        55 sh grep 38->55         started        57 14 other processes 38->57 process9 signatures10 59 gdm-wayland-session dbus-run-session 40->59         started        61 gdm-wayland-session dbus-daemon 40->61         started        127 Sample tries to kill a massive number of system processes 42->127 129 Sample tries to kill multiple processes (SIGKILL) 42->129 64 dvwkja7.elf sh 42->64         started        66 dvwkja7.elf sh 42->66         started        68 dvwkja7.elf sh 42->68         started        70 gdm-wayland-session dbus-daemon 45->70         started        72 gdm-wayland-session dbus-run-session 45->72         started        74 language-options sh 47->74         started        76 language-options sh 49->76         started        process11 signatures12 78 dbus-run-session dbus-daemon 59->78         started        131 Sample reads /proc/mounts (often used for finding a writable filesystem) 61->131 81 dbus-daemon 61->81         started        83 sh ps 64->83         started        85 sh ps 66->85         started        87 sh ps 68->87         started        89 dbus-daemon 70->89         started        91 dbus-run-session dbus-daemon 72->91         started        93 2 other processes 74->93 95 2 other processes 76->95 process13 signatures14 133 Sample reads /proc/mounts (often used for finding a writable filesystem) 78->133 97 dbus-daemon false 81->97         started        99 dbus-daemon false 89->99         started        process15
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b2b7259f28f175afda3273c05113c1855ac1dc9478cdcb3730fd4aa8bb3ddce1
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b2b7259f28f175afda3273c05113c1855ac1dc9478cdcb3730fd4aa8bb3ddce1/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2024-11-29 01:32:06 UTC
File Type:
ELF32 Little (Exe)
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wk3slhzi6f227wrsopafce6bqvnmdxeupdg4wnzq7vfkroz53tqq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:botnet discovery
Link:
https://tria.ge/reports/241129-bxyrtstmgl/
Behaviour
Reads runtime system information
Changes its process name
Reads CPU attributes
Enumerates running processes
Deletes itself
Malware Config
C2 Extraction:
boats.dogmuncher.xyz
89.190.156.145
Verdict:
Malicious
Tags:
trojan gafgyt Unix.Dropper.Mirai-7135925-0
YARA:
Linux_Trojan_Gafgyt_28a2fe0c Linux_Gafgyt_May_2024
Link:
https://app.threat.zone/submission/8bb54231-8cfd-4052-9530-59868786e839
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/b2b7259f28f175afda3273c05113c1855ac1dc9478cdcb3730fd4aa8bb3ddce1

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:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:F01_s1ckrule
Create hunting rule
Author:s1ckb017
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Gafgyt_28a2fe0c
Create hunting rule
Author:Elastic Security
Rule name:MAL_ARM_LNX_Mirai_Mar13_2022
Create hunting rule
Author:Mehmet Ali Kerimoglu a.k.a. CYB3RMX
Description:Detects new ARM Mirai variant
Rule name:RansomPyShield_Antiransomware
Create hunting rule
Author:XiAnzheng
Description:Check for Suspicious String and Import combination that Ransomware mostly abuse(can create FP)
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
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 b2b7259f28f175afda3273c05113c1855ac1dc9478cdcb3730fd4aa8bb3ddce1

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3311103/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3311112/

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