MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1b036da980d67eb67ee1bfb458d3cfd198a7573ca0f392ec3715d2c9629ed363. 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 4 File information Comments

SHA256 hash: 1b036da980d67eb67ee1bfb458d3cfd198a7573ca0f392ec3715d2c9629ed363
SHA3-384 hash: 4277111d79be09229b7fdc7dfbe75eae8dffa270ed0bda51b4934757cacb726038cc17b9d1cc16d317bdf09f34ede438
SHA1 hash: d76798e3c6b2fec0024a68d5da86b3665a78c8b5
MD5 hash: 39cf163fdeecec2d57a3f7b39efa6c84
humanhash: fanta-alabama-lima-lake
File name:putita.arm5
Download: download sample
Signature Mirai
File size:56'436 bytes
First seen:2026-08-06 05:30:47 UTC
Last seen:2026-08-06 17:42:16 UTC
File type: elf
MIME type:application/x-sharedlib
ssdeep 1536:Tn47cia83jYUfGzO574bMR1/j7PvVUBLEOcbf9:zTx4Mu1rrOZEpbl
TLSH T15543F16419C62D1AD3E21131C6FDE681A90037F53B763324A619AFA9834740FBEF920F
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 UPX
File size (compressed) :56'436 bytes
File size (de-compressed) :124'348 bytes
Format:linux/arm
Unpacked file: a79f926a5febbb3a3975551ce736a0960d7da071fd9c7ec31d5181ea57fa7280

Intelligence


File Origin
# of uploads :
2
# of downloads :
76
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creates or modifies symbolic links
Creating a file
Connection attempt
Sets a written file as executable
Changes access rights for a written file
Changes the time when the file was created, accessed, or modified
Runs as daemon
Opens a port
Writes files to system directory
Creates or modifies files in /cron to set up autorun
Substitutes an application name
Deleting of the original file
Creates or modifies files in /init.d to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Creates or modifies files to set up autorun
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
masquerade packed upx
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-08-06T03:42:00Z UTC
Last seen:
2026-08-07T22:22:00Z UTC
Hits:
~10
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
88 / 100
Signature
Drops files in suspicious directories
Executes the "crontab" command typically for achieving persistence
Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions
Multi AV Scanner detection for submitted file
Protects files from modification
Sample deletes itself
Sample is packed with UPX
Sample tries to persist itself using /etc/profile
Sample tries to persist itself using cron
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1953103 Sample: putita.arm5.elf Startdate: 06/08/2026 Architecture: LINUX Score: 88 49 64.89.163.215, 36078, 666 NETIFACE-TORONTO-NetifaceAmericaIncUS Germany 2->49 53 Multi AV Scanner detection for submitted file 2->53 55 Sample is packed with UPX 2->55 9 putita.arm5.elf 2->9         started        signatures3 process4 file5 41 /usr/lib/kworker-helper, ELF 9->41 dropped 43 /root/.bashrc, ASCII 9->43 dropped 45 /etc/systemd/system/kworker-helper.service, ASCII 9->45 dropped 47 3 other malicious files 9->47 dropped 63 Sample tries to set files in /etc globally writable 9->63 65 Sample tries to persist itself using /etc/profile 9->65 67 Drops files in suspicious directories 9->67 69 3 other signatures 9->69 13 putita.arm5.elf sh 9->13         started        15 putita.arm5.elf sh 9->15         started        17 putita.arm5.elf chattr 9->17         started        20 6 other processes 9->20 signatures6 process7 signatures8 22 sh crontab 13->22         started        26 sh 13->26         started        28 sh crontab 15->28         started        51 Protects files from modification 17->51 30 putita.arm5.elf 20->30         started        32 putita.arm5.elf 20->32         started        34 putita.arm5.elf 20->34         started        process9 file10 39 /var/spool/cron/crontabs/tmp.nKscJ9, ASCII 22->39 dropped 59 Sample tries to persist itself using cron 22->59 61 Executes the "crontab" command typically for achieving persistence 22->61 36 sh crontab 26->36         started        signatures11 process12 signatures13 57 Executes the "crontab" command typically for achieving persistence 36->57
Threat name:
Linux.Trojan.Multiverze
Status:
Malicious
First seen:
2026-08-06 05:31:36 UTC
File Type:
ELF32 Little (SO)
AV detection:
11 of 38 (28.95%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution persistence privilege_escalation upx
Behaviour
Reads runtime system information
Changes its process name
Modifies Bash startup script
UPX packed file
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
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
Rule name:unixredflags3
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags
Rule name:upx_packed_elf_v1
Author:RandomMalware

File information


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

Web download

Mirai

elf 1b036da980d67eb67ee1bfb458d3cfd198a7573ca0f392ec3715d2c9629ed363

(this sample)

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