MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b7d6a3f81110e6866aea309ec2cc870abbbb7a80450fa8fb2781d6d5aa8da23. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments

SHA256 hash: 4b7d6a3f81110e6866aea309ec2cc870abbbb7a80450fa8fb2781d6d5aa8da23
SHA3-384 hash: 04d85f3296aade9618ad10bad0947c5d02658ae729ad6dcc9b6bffd1bfa59a66d1b109b4f15d8b1da5cca9bb10e11a39
SHA1 hash: e1740ea7fcfeeb6d839c177d0f3cb66445e7f0ca
MD5 hash: 9908e7ff75221f39cb7b57e86fd113f0
humanhash: muppet-bravo-cup-pluto
File name:arm7
Download: download sample
Signature Mirai
File size:65'304 bytes
First seen:2024-04-02 08:38:43 UTC
Last seen:2024-04-02 09:37:28 UTC
File type: elf
MIME type:application/x-executable
ssdeep 768:Ev/KCmvR5QiZZpjFGZ1oGUbjadfZMFMe2dzt3mZB1fBi5c9q3UELgu4LppojjJZq:EXAvR52E4uM3t3KNBglLgr9Pxwc7
TLSH T17C5302B29D73F512FB70AFB35E66C6587E4227ECD4AC70A62AD48F0C63E09135574086
TrID 50.1% (.) ELF Executable and Linkable format (Linux) (4022/12)
49.8% (.O) ELF Executable and Linkable format (generic) (4000/1)
Reporter Anonymous
Tags:elf mirai

Intelligence


File Origin
# of uploads :
2
# of downloads :
129
Origin country :
PL PL
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Receives data from a server
Removes directories
Runs as daemon
DNS request
Opens a port
Sends data to a server
Collects information on the network activity
Deleting a recently created file
Connection attempt
Substitutes an application name
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug packed upx
Result
Verdict:
MALICIOUS
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
52 / 100
Signature
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1418612 Sample: arm7.elf Startdate: 02/04/2024 Architecture: LINUX Score: 52 16 87.246.7.66, 35342, 37102 INTERNET-HOSTINGBG Bulgaria 2->16 18 secure-cyber-security-rebirthltd.su 2->18 20 Multi AV Scanner detection for submitted file 2->20 22 Sample is packed with UPX 2->22 8 arm7.elf 2->8         started        signatures3 process4 process5 10 arm7.elf 8->10         started        process6 12 arm7.elf 10->12         started        14 arm7.elf 10->14         started       
Threat name:
Linux.Trojan.Mirai
Status:
Malicious
First seen:
2024-04-02 07:14:55 UTC
File Type:
ELF32 Little (Exe)
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
upx
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:SUSP_ELF_LNX_UPX_Compressed_File
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research

File information


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

Web download

Mirai

elf 4b7d6a3f81110e6866aea309ec2cc870abbbb7a80450fa8fb2781d6d5aa8da23

(this sample)

  
Delivery method
Distributed via web download

Comments