MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21862cf3d6842e4511f4016799eb880d0cd26c8f873aa6ef73d3e6dfd37c0f3e. 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: 6


Intelligence 6 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 21862cf3d6842e4511f4016799eb880d0cd26c8f873aa6ef73d3e6dfd37c0f3e
SHA3-384 hash: af94ed5f621aef49af5f4b47985caf09bf000181d90ccb9fdf46a119fe137ab524641fb032dff12de3dbcb076fedc1f5
SHA1 hash: 42582a578a9af4c653191469a64dd65a73259a07
MD5 hash: 5efa7554ed27e0bf2782196c5a7ae3c8
humanhash: failed-lactose-sixteen-april
File name:armv7l-20230704-1653
Download: download sample
Signature Mirai
Create hunting rule
File size:184'841 bytes
First seen:2023-07-04 16:53:20 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:fxvVkT4pcjHaFYudUy5Dq7keauzeQid1KP+LM/935GP:pVGDjaFYudUy5Dwke1g1KPSM/93sP
TLSH T113040AC6AA517E37C2C36BB7EAEFC10533A38B54A3972305546C5BF07E4B9890D1660E
telfhash t16521204664f6c519afb65d74dcfc97b20690121322442f709f2ec4dc4d2b052eb39c8a
Reporter elfdigest
Tags:mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
100
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Mirai-69.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Mirai-78.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.29523.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.29229.LC.UNOFFICIAL
Create hunting rule

Unix.Dropper.Mirai-7135881-0
Create hunting rule

Unix.Dropper.Mirai-7135996-0
Create hunting rule

Unix.Dropper.Mirai-7136033-0
Create hunting rule

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

Unix.Trojan.Mirai-9807962-0
Create hunting rule

Unix.Trojan.Mirai-9808381-0
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
lolbin mirai obfuscated remote
Link:
https://www.filescan.io/uploads/64a44eaa51710bcd8d442fbf/reports/8f81e476-223c-4448-bbca-276fa937c83b/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
5.181.80.102
Number of open files:
89
Number of processes launched:
75
Processes remaning?
false
Remote TCP ports scanned:
2323,23,5555,80
Full report:
https://elfdigest.com/brief/21862cf3d6842e4511f4016799eb880d0cd26c8f873aa6ef73d3e6dfd37c0f3e
Behaviour
Persistence
Firewall Changes
Kernel Modules
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Verdict:
UNKNOWN
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/74395538-e3fc-4bbf-931f-bebd875b8765
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/1266758
Signature
Antivirus / Scanner detection for submitted sample
Drops files in suspicious directories
Executes the "iptables" command to insert, remove and/or manipulate rules
Found strings indicative of a multi-platform dropper
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample tries to persist itself using /etc/profile
Sample tries to persist itself using cron
Sample tries to persist itself using System V runlevels
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1266758 Sample: armv7l-20230704-1653.elf Startdate: 04/07/2023 Architecture: LINUX Score: 84 80 Antivirus / Scanner detection for submitted sample 2->80 82 Multi AV Scanner detection for submitted file 2->82 84 Found strings indicative of a multi-platform dropper 2->84 11 armv7l-20230704-1653.elf 2->11         started        process3 signatures4 98 Sample deletes itself 11->98 14 armv7l-20230704-1653.elf 11->14         started        16 armv7l-20230704-1653.elf 11->16         started        process5 process6 18 armv7l-20230704-1653.elf 14->18         started        20 armv7l-20230704-1653.elf 14->20         started        22 armv7l-20230704-1653.elf 14->22         started        24 2 other processes 14->24 process7 26 armv7l-20230704-1653.elf 18->26         started        28 armv7l-20230704-1653.elf 18->28         started        30 armv7l-20230704-1653.elf 18->30         started        32 19 other processes 18->32 process8 34 armv7l-20230704-1653.elf 26->34         started        36 armv7l-20230704-1653.elf sh 28->36         started        40 armv7l-20230704-1653.elf sh 28->40         started        42 armv7l-20230704-1653.elf sh 30->42         started        44 armv7l-20230704-1653.elf sh 30->44         started        46 armv7l-20230704-1653.elf sh 32->46         started        48 armv7l-20230704-1653.elf sh 32->48         started        50 sh iptables 32->50         started        52 32 other processes 32->52 file9 54 armv7l-20230704-1653.elf sh 34->54         started        58 armv7l-20230704-1653.elf sh 34->58         started        68 /etc/rc.local, ASCII 36->68 dropped 86 Sample tries to persist itself using System V runlevels 36->86 60 sh chmod 36->60         started        70 /etc/init.d/rcD, ASCII 42->70 dropped 88 Drops files in suspicious directories 42->88 62 sh chmod 42->62         started        72 /etc/profile, ASCII 46->72 dropped 90 Sample tries to persist itself using /etc/profile 46->90 74 /etc/cron.hourly/0, ASCII 48->74 dropped 92 Sample tries to persist itself using cron 48->92 94 Executes the "iptables" command to insert, remove and/or manipulate rules 50->94 76 /etc/passwd, ASCII 52->76 dropped 64 sh rm 52->64         started        signatures10 process11 file12 78 /etc/init.d/multipath-tools, ASCII 54->78 dropped 96 Drops files in suspicious directories 54->96 66 sh chmod 54->66         started        signatures13 process14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/21862cf3d6842e4511f4016799eb880d0cd26c8f873aa6ef73d3e6dfd37c0f3e/
Threat name:
Linux.Trojan.Mirai
Create hunting rule
Status:
Malicious
First seen:
2023-07-04 16:54:05 UTC
File Type:
ELF32 Little (Exe)
AV detection:
14 of 21 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=egdcz46wqqxekepuaftzt24ibugne3epq45kn33t2ptn7u34b47a._file
Result
Malware family:
n/a
Score:
  9/10
Tags:
discovery persistence
Link:
https://tria.ge/reports/230704-veh37sff52/
Behaviour
Writes file to tmp directory
Modifies Bash startup script
Creates/modifies Cron job
Creates/modifies environment variables
Modifies init.d
Modifies rc script
Writes file to system bin folder
Deletes itself
Modifies Watchdog functionality
Modifies password files for system users/ groups
Contacts a large (221487) amount of remote hosts
Creates a large amount of network flows
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/21862cf3d6842e4511f4016799eb880d0cd26c8f873aa6ef73d3e6dfd37c0f3e

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: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 21862cf3d6842e4511f4016799eb880d0cd26c8f873aa6ef73d3e6dfd37c0f3e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2676523/
  
Delivery method
Distributed via web download

Comments