MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aa2a31bc57e8e83fcf8c757acd5eeb2aacb0a528486c314c0574e5e93d8962e4. 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: 11


Intelligence 11 IOCs YARA 9 File information Comments
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SHA256 hash: aa2a31bc57e8e83fcf8c757acd5eeb2aacb0a528486c314c0574e5e93d8962e4
SHA3-384 hash: eb345800962e7d2701247809a7fc2aa824697bd5d789f6c4abf9304e569effb1379ff1e154c0ecc8c79aff38dd7e4dd0
SHA1 hash: 055bd7abea4c0aba97853fb1dd21d23247934d22
MD5 hash: 0a973b07d0850d07a70c98cb087bf5e2
humanhash: ink-california-six-freddie
File name:rsyslogd
Download: download sample
Signature Mirai
Create hunting rule
File size:157'540 bytes
First seen:2025-09-17 11:53:52 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:EIzvUjYmcuQRU7H8xLyNopqm3/be8Zs9LD4aMz:EIzvUjxcuQu7HMeCqm3/be8Zs9LD4aa
TLSH T158F35A53A71C0783C49B4AF02C7737F48799AE7212A610C6E50AFEC167729B92136FE5
telfhash t1364166529d7887242ff75928acad87731222662353767f72af79c4cc54220b0e539d4f
Magika elf
Reporter abuse_ch
Tags:elf gafgyt mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
94
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.29052.TSource.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30541.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.32133.LX.BOT.UNOFFICIAL
Create hunting rule

Unix.Dropper.Mirai-7139229-0
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Unix.Trojan.Mirai-7688276-0
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Attempts to kill processes by name
Collects information on the CPU
Creating a file
Runs as daemon
Opens a port
Launching a process
Kills processes
Connection attempt
Substitutes an application name
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
gcc
Link:
https://www.filescan.io/uploads/68caa17ddbc6f5a29c49aafd/reports/85bfa6dc-0247-4728-9535-d10a153ccdca/overview
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2025-09-17T10:04:00Z UTC
Last seen:
2025-09-17T10:04:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/aa2a31bc57e8e83fcf8c757acd5eeb2aacb0a528486c314c0574e5e93d8962e4/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/c758776b-1171-441e-91f9-edaed0c50d84
Behavior Graph:
Download SVG
%3 guuid=ff1a52d2-1500-0000-113f-a4bd8d0b0000 pid=2957 /usr/bin/sudo guuid=86f445d4-1500-0000-113f-a4bd950b0000 pid=2965 /tmp/sample.bin guuid=ff1a52d2-1500-0000-113f-a4bd8d0b0000 pid=2957->guuid=86f445d4-1500-0000-113f-a4bd950b0000 pid=2965 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/403f56f0-df4f-4429-9933-b3e9616cc724
Result
Threat name:
Gafgyt
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1779187
Signature
Antivirus / Scanner detection for submitted sample
Connects to many ports of the same IP (likely port scanning)
Contains symbols with names commonly found in malware
Multi AV Scanner detection for submitted file
Opens /proc/net/* files useful for finding connected devices and routers
Terminates several processes with shell command 'killall'
Yara detected Gafgyt
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1779187 Sample: rsyslogd.elf Startdate: 17/09/2025 Architecture: LINUX Score: 80 45 206.123.145.140, 65481 LEASEWEB-USA-NYC-11US United States 2->45 47 169.254.169.254, 80 USDOSUS Reserved 2->47 49 3 other IPs or domains 2->49 51 Antivirus / Scanner detection for submitted sample 2->51 53 Multi AV Scanner detection for submitted file 2->53 55 Yara detected Gafgyt 2->55 57 2 other signatures 2->57 9 rsyslogd.elf 2->9         started        12 python3.8 dpkg 2->12         started        signatures3 process4 signatures5 59 Opens /proc/net/* files useful for finding connected devices and routers 9->59 14 rsyslogd.elf 9->14         started        16 rsyslogd.elf 9->16         started        18 rsyslogd.elf 9->18         started        process6 process7 20 rsyslogd.elf sh 14->20         started        22 rsyslogd.elf sh 14->22         started        24 rsyslogd.elf sh 14->24         started        28 5 other processes 14->28 26 rsyslogd.elf 16->26         started        process8 30 sh killall 20->30         started        33 sh killall 22->33         started        35 sh killall 24->35         started        37 sh killall 28->37         started        39 sh killall 28->39         started        41 sh killall 28->41         started        43 2 other processes 28->43 signatures9 61 Terminates several processes with shell command 'killall' 30->61
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/aa2a31bc57e8e83fcf8c757acd5eeb2aacb0a528486c314c0574e5e93d8962e4
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/aa2a31bc57e8e83fcf8c757acd5eeb2aacb0a528486c314c0574e5e93d8962e4/
Threat name:
Linux.Backdoor.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2025-09-17 11:54:34 UTC
File Type:
ELF32 Big (Exe)
AV detection:
19 of 38 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vivddpcx5dud7t4mov5m2xxlfkwlbjjijbwdctafots6spmjmlsa._file
Result
Malware family:
gafgyt
Create hunting rule
Score:
  10/10
Tags:
family:gafgyt linux
Link:
https://tria.ge/reports/250917-n26pfsyzc1/
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7139229-0
YARA:
n/a
Link:
https://app.threat.zone/submission/9dec91b1-f594-439e-8d91-307ca14c51e1
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/aa2a31bc57e8e83fcf8c757acd5eeb2aacb0a528486c314c0574e5e93d8962e4

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:ach_202503_elf_Mirai
Create hunting rule
Author:abuse.ch
Description:Detects Mirai 'TSource' ELF files
Rule name:botnet_plaintext_c2
Create hunting rule
Author:cip
Description:Attempts to match at least some of the strings used in some botnet variants which use plaintext communication protocols.
Rule name:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:generic_IG_stealer
Create hunting rule
Author:RE4rensics
Description:Detects stealers that interacts with IG endpoints after stealing IG cookies
Rule name:Linux_Gafgyt_Generic
Create hunting rule
Author:albertzsigovits
Description:Generic Approach to Mirai/Gafgyt samples
Rule name:Mal_LNX_Gafgyt_Botnet_ELF
Create hunting rule
Author:Phatcharadol Thangplub
Description:Use to detect Gafgyt botnet, and there variants.
Rule name:setsockopt
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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 aa2a31bc57e8e83fcf8c757acd5eeb2aacb0a528486c314c0574e5e93d8962e4

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3576536/
  
Delivery method
Distributed via web download

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