MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 83b1a2347d0feee81edb14b0794589ecb30f527f4de820dd2e2359f47ded2291. 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 3 File information Comments

SHA256 hash: 83b1a2347d0feee81edb14b0794589ecb30f527f4de820dd2e2359f47ded2291
SHA3-384 hash: 3c4ea10a23b360d6c5db0b32549eebcae9d60bf5f8ad7759e1ac524f25c1176333be9379627c5378965460e99675f7ca
SHA1 hash: c25c0ac06707cf9e0fa1927fb91cd870a4dc5427
MD5 hash: 72c1a517bbc61fc5ac1df7d6babbc7cf
humanhash: spaghetti-east-sixteen-march
File name:parm5
Download: download sample
Signature Mirai
File size:33'944 bytes
First seen:2026-07-19 14:10:31 UTC
Last seen:2026-07-19 15:55:17 UTC
File type: elf
MIME type:application/x-executable
ssdeep 768:4dXd3x3CyKvqr3CNCApJW1+t0sC7rCgVw4JHKs3Uoz0:4nB3rKvOuCWJW177/x1Hz0
TLSH T1DEE2F167164EE126C8B14C7FEB281F83BBE7177AE0EBA0BD78301F5880A86835557141
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 UPX
File size (compressed) :33'944 bytes
File size (de-compressed) :71'848 bytes
Format:linux/arm
Unpacked file: b289a64659752061d00dda2194e4c81fba3d987998393883f312b26db71fc2f6

Intelligence


File Origin
# of uploads :
2
# of downloads :
77
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
botnet mirai packed upx
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
UPX
Botnet:
unknown
Number of open files:
126
Number of processes launched:
3
Processes remaning?
true
Remote TCP ports scanned:
not identified
Behaviour
Process Renaming
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-07-19T12:08:00Z UTC
Last seen:
2026-07-20T21:06:00Z UTC
Hits:
~10
Status:
terminated
Behavior Graph:
%3 guuid=cf5642b9-1600-0000-b8ae-0a31490c0000 pid=3145 /usr/bin/sudo guuid=340442bc-1600-0000-b8ae-0a314a0c0000 pid=3146 /tmp/sample.bin guuid=cf5642b9-1600-0000-b8ae-0a31490c0000 pid=3145->guuid=340442bc-1600-0000-b8ae-0a314a0c0000 pid=3146 execve
Result
Threat name:
Detection:
malicious
Classification:
spre.troj.evad
Score:
80 / 100
Signature
Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample is packed with UPX
Sample tries to kill multiple processes (SIGKILL)
Sends malformed DNS queries
Yara detected Mirai
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1944792 Sample: parm5.elf Startdate: 19/07/2026 Architecture: LINUX Score: 80 26 N\ZN\ZNNZO^H@OEXDYL+. [malformed] 2->26 28 217.60.195.187, 18129, 58964 NETPOOLIN Netherlands 2->28 30 Antivirus / Scanner detection for submitted sample 2->30 32 Multi AV Scanner detection for submitted file 2->32 34 Yara detected Mirai 2->34 36 Sample is packed with UPX 2->36 8 parm5.elf 2->8         started        11 xfce4-panel wrapper-2.0 2->11         started        13 systemd rsyslogd 2->13         started        15 31 other processes 2->15 signatures3 38 Sends malformed DNS queries 26->38 process4 signatures5 42 Sample deletes itself 8->42 17 parm5.elf 8->17         started        19 wrapper-2.0 xfpm-power-backlight-helper 11->19         started        process6 process7 21 parm5.elf 17->21         started        24 parm5.elf 17->24         started        signatures8 40 Sample tries to kill multiple processes (SIGKILL) 21->40
Threat name:
Linux.Trojan.Svirtu
Status:
Malicious
First seen:
2026-07-19 14:11:21 UTC
File Type:
ELF32 Little (Exe)
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  5/10
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: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:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
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 83b1a2347d0feee81edb14b0794589ecb30f527f4de820dd2e2359f47ded2291

(this sample)

  
Delivery method
Distributed via web download

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