MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a771a1c7f59e4d2d361393af568fb6cef033d038800ceb5995f014e4a2a6f976. 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


Gafgyt


Vendor detections: 6


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

SHA256 hash: a771a1c7f59e4d2d361393af568fb6cef033d038800ceb5995f014e4a2a6f976
SHA3-384 hash: 9893b72eec3806d198467400f2fbaabc2b20c8855ff009e0c04867e7ecc590a17734bf4cad493200ca02932f0a1a79d8
SHA1 hash: 2402de582e51ddd5eee8a333990c3a23fdfd853b
MD5 hash: a773b042626ca4cac8adf5fa982efd0e
humanhash: robin-red-beryllium-california
File name:armv7l-20230704-1754
Download: download sample
Signature Gafgyt
Create hunting rule
File size:170'443 bytes
First seen:2023-07-04 17:54:37 UTC
Last seen:2023-07-04 20:23:36 UTC
File type: elf
MIME type:application/x-executable
ssdeep 3072:8T+aIaKcaTv+KodrG9wpCFqxZKrLKM/9WfKYpH:KIaKcaTv+KcrGNIZKr+M/9G5
TLSH T150F30AC6EA417E37C2C36BB6EADFC14533E38B14A397230594586FF07E4BA990D16609
telfhash t13121328664f6c519abb65d34ddfc97b24651132322441f709f2ec4c85d3b002eb39c8a
Reporter elfdigest
Tags:gafgyt mirai

Intelligence

File Origin
# of uploads :
3
# of downloads :
115
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

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

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
lolbin remote
Link:
https://www.filescan.io/uploads/64a45cf9204315fbc16cc3e4/reports/105c2472-5a0b-47bd-a651-c7e8e8982afe/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:
74
Processes remaning?
false
Remote TCP ports scanned:
5555,80
Full report:
https://elfdigest.com/brief/a771a1c7f59e4d2d361393af568fb6cef033d038800ceb5995f014e4a2a6f976
Behaviour
Persistence
Firewall Changes
Kernel Modules
Botnet C2s
TCP botnet C2(s):
5.181.80.102:7267
UDP botnet C2(s):
not identified
Result
Verdict:
UNKNOWN
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f371f155-1ff0-4653-9a67-014c759c23e1
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1266788
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
Snort IDS alert for network traffic
Uses known network protocols on non-standard ports
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1266788 Sample: armv7l-20230704-1754.elf Startdate: 04/07/2023 Architecture: LINUX Score: 96 81 fucking.blackpeople.lol 2->81 83 108.60.223.153 ZC38-AS1US United States 2->83 85 99 other IPs or domains 2->85 87 Snort IDS alert for network traffic 2->87 89 Antivirus / Scanner detection for submitted sample 2->89 91 Multi AV Scanner detection for submitted file 2->91 93 2 other signatures 2->93 12 armv7l-20230704-1754.elf 2->12         started        signatures3 process4 signatures5 107 Sample deletes itself 12->107 15 armv7l-20230704-1754.elf 12->15         started        17 armv7l-20230704-1754.elf 12->17         started        process6 process7 19 armv7l-20230704-1754.elf 15->19         started        21 armv7l-20230704-1754.elf 15->21         started        23 armv7l-20230704-1754.elf 15->23         started        25 armv7l-20230704-1754.elf 15->25         started        process8 27 armv7l-20230704-1754.elf 19->27         started        29 armv7l-20230704-1754.elf 19->29         started        31 armv7l-20230704-1754.elf 19->31         started        33 19 other processes 19->33 process9 35 armv7l-20230704-1754.elf 27->35         started        37 armv7l-20230704-1754.elf sh 29->37         started        41 armv7l-20230704-1754.elf sh 29->41         started        43 armv7l-20230704-1754.elf sh 31->43         started        45 armv7l-20230704-1754.elf sh 31->45         started        47 armv7l-20230704-1754.elf sh 33->47         started        49 armv7l-20230704-1754.elf sh 33->49         started        51 sh iptables 33->51         started        53 32 other processes 33->53 file10 55 armv7l-20230704-1754.elf sh 35->55         started        59 armv7l-20230704-1754.elf sh 35->59         started        69 /etc/rc.local, ASCII 37->69 dropped 95 Sample tries to persist itself using System V runlevels 37->95 61 sh chmod 37->61         started        71 /etc/init.d/rcD, ASCII 43->71 dropped 97 Drops files in suspicious directories 43->97 63 sh chmod 43->63         started        73 /etc/profile, ASCII 47->73 dropped 99 Sample tries to persist itself using /etc/profile 47->99 75 /etc/cron.hourly/0, ASCII 49->75 dropped 101 Sample tries to persist itself using cron 49->101 103 Executes the "iptables" command to insert, remove and/or manipulate rules 51->103 77 /etc/passwd, ASCII 53->77 dropped 65 sh rm 53->65         started        signatures11 process12 file13 79 /etc/init.d/multipath-tools, ASCII 55->79 dropped 105 Drops files in suspicious directories 55->105 67 sh chmod 55->67         started        signatures14 process15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a771a1c7f59e4d2d361393af568fb6cef033d038800ceb5995f014e4a2a6f976/
Threat name:
Linux.Trojan.Mirai
Create hunting rule
Status:
Malicious
First seen:
2023-07-04 17:55:06 UTC
File Type:
ELF32 Little (Exe)
AV detection:
13 of 23 (56.52%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=u5y2dr7vtzgs2nqtsoxvnd5wz3ydhubyqagowwmv6akojivg7f3a._file
Result
Malware family:
n/a
Score:
  9/10
Tags:
discovery persistence
Link:
https://tria.ge/reports/230704-whfb6aga36/
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 (167426) 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/a771a1c7f59e4d2d361393af568fb6cef033d038800ceb5995f014e4a2a6f976

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

Gafgyt

elf a771a1c7f59e4d2d361393af568fb6cef033d038800ceb5995f014e4a2a6f976

(this sample)

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

Comments