MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4a40b533934722243cf816a07bf4b41f747b1a1438adcefc0e5cfc0da529e8af. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4a40b533934722243cf816a07bf4b41f747b1a1438adcefc0e5cfc0da529e8af
SHA3-384 hash: f6be1c9c77a9afed0cef25c038d40401a4b6853383cc129506cbfccb3b32c24419b3283331e56e11a025bb065e349ae7
SHA1 hash: 3ea2281a59cb6a8ec77b85a72c016e1f58dc425e
MD5 hash: 89bc05786c7586e77d365c0cba26d913
humanhash: hot-green-oranges-item
File name:putita.arm6
Download: download sample
Signature Mirai
Create hunting rule
File size:124'340 bytes
First seen:2026-08-05 19:11:39 UTC
Last seen:Never
File type: elf
MIME type:application/x-sharedlib
ssdeep 3072:I85FjA5l1pSzeFMyD1IekcYEEUw60MW/NwhrRtYaPI6NeFFJduIf1Dlg:IWdUieD17kcYEEUw60MW1wXiaPcT8I95
TLSH T1C8C329A9F890DE52C6D52676FB4E018C33231778D3DE7106CE149E34E7EB95A0E3A942
Magika elf
Reporter abuse_ch
Tags:elf mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 274c944a3fb5fa52fce567d2d10b330838c9584762e8f4ccfc09a2b6d54b12d6
File size (compressed) :55'788 bytes
File size (de-compressed) :124'340 bytes
Format:linux/arm
Packed file: 274c944a3fb5fa52fce567d2d10b330838c9584762e8f4ccfc09a2b6d54b12d6

Intelligence

File Origin
# of uploads :
1
# of downloads :
68
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Sets a written file as executable
Runs as daemon
Creates or modifies symbolic links
Changes the time when the file was created, accessed, or modified
Opens a port
Connection attempt
Launching a process
Changes access rights for a written file
Writes files to system directory
Substitutes an application name
Creates or modifies files in /cron to set up autorun
Creates or modifies files in /init.d to set up autorun
Creates or modifies files to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Deleting of the original file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
gcc masquerade mirai rust
Link:
https://www.filescan.io/uploads/6a738b1a2d492e167872ad51/reports/ddee5bb4-62b7-485a-8653-d5d142cb80fb/overview
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/960638b0-d27b-457a-a069-34b56c770982
Behavior Graph:
Download SVG
%3 guuid=f30cd3f9-1a00-0000-5242-0f27c5080000 pid=2245 /usr/bin/sudo guuid=0a02a1fb-1a00-0000-5242-0f27c7080000 pid=2247 /tmp/sample.bin guuid=f30cd3f9-1a00-0000-5242-0f27c5080000 pid=2245->guuid=0a02a1fb-1a00-0000-5242-0f27c7080000 pid=2247 execve
Gathering data
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/4a40b533934722243cf816a07bf4b41f747b1a1438adcefc0e5cfc0da529e8af
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4a40b533934722243cf816a07bf4b41f747b1a1438adcefc0e5cfc0da529e8af/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-08-05 19:12:42 UTC
File Type:
ELF32 Little (SO)
AV detection:
7 of 36 (19.44%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jjalkm4ti4rciphyc2qhx5fud52hwgquhcw457aolt6a3jjj5cxq._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion execution persistence privilege_escalation
Link:
https://tria.ge/reports/260805-xwp9yszvc1/
Behaviour
Changes its process name
Modifies Bash startup script
Creates/modifies Cron job
Creates/modifies environment variables
Modifies init.d
Modifies rc script
Modifies systemd
Deletes itself
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_arm_mips_ko_so
Create hunting rule
Rule name:ELF_IoT_Persistence_Hunt
Create hunting rule
Author:4r4
Description:Hunts for ELF files with persistence and download capabilities
Rule name:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
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 274c944a3fb5fa52fce567d2d10b330838c9584762e8f4ccfc09a2b6d54b12d6

Mirai

elf 4a40b533934722243cf816a07bf4b41f747b1a1438adcefc0e5cfc0da529e8af

(this sample)

  
Dropped by
SHA256 274c944a3fb5fa52fce567d2d10b330838c9584762e8f4ccfc09a2b6d54b12d6
  
URLhaus
https://urlhaus.abuse.ch/url/3892136/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3892174/
  
Dropped by
MD5 795c0f145f5b733b39e758bae7de9a12
  
URLhaus
https://urlhaus.abuse.ch/url/3885285/

Comments