MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b9bdd75b55852b3f8d842a482443a7b35732523cd3c8eae4b4b17ca910822840. 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 2 File information Comments

SHA256 hash: b9bdd75b55852b3f8d842a482443a7b35732523cd3c8eae4b4b17ca910822840
SHA3-384 hash: e5396d3795bb51a41b03bce259459988a16803e00de8899bbd62968d1d9ae53fab8d40ecf3a902fe95bb5c5d4be6e361
SHA1 hash: f8cf8d0db764834f60325110897e8a7cabc96fc4
MD5 hash: 2ebce2c623cee35100ce645095e0e17a
humanhash: four-blue-california-colorado
File name:nshmpsl
Download: download sample
Signature Mirai
File size:101'568 bytes
First seen:2024-10-26 16:51:21 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:IHC8aIWiD9AW0FLQ4LBOe+h2s9ieZWUHy6Yb7SWTnvgkwBu:IHC8HWMxhlUeSl7wBu
TLSH T1AFA3E61ABF610EFBDC6FDD3706A9074135CC941722A83B3A3574D928F64B14B4AE3968
TrID 50.1% (.) ELF Executable and Linkable format (Linux) (4022/12)
49.8% (.O) ELF Executable and Linkable format (generic) (4000/1)
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence


File Origin
# of uploads :
1
# of downloads :
82
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Mounts file systems
Connection attempt
Changes the time when the file was created, accessed, or modified
Sends data to a server
Receives data from a server
Creating a file
Launching a process
Runs as daemon
Opens a port
Changes access rights for a written file
Substitutes an application name
Creates or modifies files in /cron to set up autorun
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug lolbin remote
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
not packed
Botnet:
unknown
Number of open files:
7
Number of processes launched:
1
Processes remaning?
false
Remote TCP ports scanned:
not identified
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Verdict:
MALICIOUS
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj
Score:
60 / 100
Signature
Connects to many ports of the same IP (likely port scanning)
Executes the "crontab" command typically for achieving persistence
Multi AV Scanner detection for submitted file
Sample tries to persist itself using cron
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1542858 Sample: nshmpsl.elf Startdate: 26/10/2024 Architecture: LINUX Score: 60 34 91.149.238.18, 21752, 50082, 52574 MARTON-ASPL Poland 2->34 36 91.149.218.232, 13788, 22281, 37870 GECKONET-ASPL Poland 2->36 38 8 other IPs or domains 2->38 44 Multi AV Scanner detection for submitted file 2->44 46 Connects to many ports of the same IP (likely port scanning) 2->46 9 nshmpsl.elf 2->9         started        signatures3 process4 process5 11 nshmpsl.elf sh 9->11         started        13 nshmpsl.elf 9->13         started        15 nshmpsl.elf 9->15         started        process6 17 sh crontab 11->17         started        21 sh 11->21         started        23 nshmpsl.elf 13->23         started        25 nshmpsl.elf 15->25         started        file7 32 /var/spool/cron/crontabs/tmp.98hekB, ASCII 17->32 dropped 40 Sample tries to persist itself using cron 17->40 42 Executes the "crontab" command typically for achieving persistence 17->42 27 sh crontab 21->27         started        30 nshmpsl.elf 23->30         started        signatures8 process9 signatures10 48 Executes the "crontab" command typically for achieving persistence 27->48
Threat name:
Linux.Backdoor.Mirai
Status:
Malicious
First seen:
2024-10-26 16:46:24 UTC
File Type:
ELF32 Little (Exe)
AV detection:
13 of 24 (54.17%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution persistence privilege_escalatio
Behaviour
Reads runtime system information
Changes its process name
Creates/modifies Cron job
File and Directory Permissions Modification
Renames itself
Unexpected DNS network traffic destination
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
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:ELF_Mirai
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:unixredflags3
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 b9bdd75b55852b3f8d842a482443a7b35732523cd3c8eae4b4b17ca910822840

(this sample)

  
Delivery method
Distributed via web download

BLint


The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments