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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 da7cac6a41fb53171db401c5a952bcf1a4796068fd07c0900027dc5919cd4a7c. 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 14 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: da7cac6a41fb53171db401c5a952bcf1a4796068fd07c0900027dc5919cd4a7c
SHA3-384 hash: 4d29b33fe27ad16160dcb3bc0d4b7b0ab252b217e2ba790910f8b3b3b0fb603afe57069c890a35f097a915981bc4ba7d
SHA1 hash: 908e1abab6c5e9c23ca73a6394c32e0b1f755c6a
MD5 hash: 46cbc90be448e448bb1485e7370d3367
humanhash: north-tennessee-magazine-equal
File name:wj0s.arm
Download: download sample
Signature Mirai
Create hunting rule
File size:358'264 bytes
First seen:2026-10-09 06:09:52 UTC
Last seen:2026-10-09 13:51:38 UTC
File type: elf
MIME type:application/x-sharedlib
ssdeep 6144:GG2lEdFRNNnkko8v7RcB0q3WrHguPqwE47lz2mj8j7HL+FkCXwGUBzJaMVBLm7ql:pdto8vQ0wW8K7xiSw
TLSH T1B374E893E240CE9AC26018B5721F7388774743BAD9E67143FA15EE31BB9E54F023A8D5
Magika elf
Reporter abuse_ch
Tags:elf gafgyt mirai

Intelligence

File Origin
# of uploads :
3
# of downloads :
92
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.Linux.Mirai-44.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Mirai-58.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Manages services
Runs as daemon
Substitutes an application name
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
masquerade obfuscated rust
Link:
https://www.filescan.io/uploads/6ac8854f8e4342ea6ad94cf7/reports/9e0ba85e-fa24-4f84-9eff-35e9142bc989/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-10-08T18:28:00Z UTC
Last seen:
2026-10-10T23:53:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/da7cac6a41fb53171db401c5a952bcf1a4796068fd07c0900027dc5919cd4a7c/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/af4b8e2b-f023-4d71-9d79-8baef64340f4
Behavior Graph:
Download SVG
%3 guuid=d6d17298-1900-0000-b525-b1f861060000 pid=1633 /usr/bin/sudo guuid=e4775d9b-1900-0000-b525-b1f868060000 pid=1640 /tmp/sample.bin guuid=d6d17298-1900-0000-b525-b1f861060000 pid=1633->guuid=e4775d9b-1900-0000-b525-b1f868060000 pid=1640 execve
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/1464a80c-9bf5-4d0b-be01-a3985716291a
Result
Threat name:
Mirai, Xmrig
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad.mine
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/1984653
Signature
Drops files in suspicious directories
Drops invisible ELF files
Found strings related to Crypto-Mining
Multi AV Scanner detection for submitted file
Sample tries to kill multiple processes (SIGKILL)
Writes identical ELF files to multiple locations
Yara detected Mirai
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1984653 Sample: wj0s.arm.elf Startdate: 09/10/2026 Architecture: LINUX Score: 84 51 103.238.235.250, 39820, 6767 MEGACORE-AS-VNMegacoreTechnologyCompanyLimitedVN Vietnam 2->51 55 Multi AV Scanner detection for submitted file 2->55 57 Yara detected Mirai 2->57 59 Yara detected Xmrig cryptocurrency miner 2->59 10 wj0s.arm.elf 2->10         started        13 systemd snapd-env-generator 2->13         started        15 systemd snapd-env-generator 2->15         started        17 6 other processes 2->17 signatures3 process4 signatures5 77 Found strings related to Crypto-Mining 10->77 19 wj0s.arm.elf 10->19         started        process6 process7 21 wj0s.arm.elf 19->21         started        signatures8 61 Sample tries to kill multiple processes (SIGKILL) 21->61 63 Writes identical ELF files to multiple locations 21->63 65 Drops invisible ELF files 21->65 67 Drops files in suspicious directories 21->67 24 wj0s.arm.elf 21->24         started        28 wj0s.arm.elf systemctl 21->28         started        30 wj0s.arm.elf systemctl 21->30         started        32 2 other processes 21->32 process9 file10 43 /var/www/html/.network-dispatch, ELF 24->43 dropped 45 /var/www/.network-dispatch, ELF 24->45 dropped 47 /var/tmp/.network-dispatch, ELF 24->47 dropped 49 24 other malicious files 24->49 dropped 69 Sample tries to kill multiple processes (SIGKILL) 24->69 71 Writes identical ELF files to multiple locations 24->71 73 Drops invisible ELF files 24->73 75 Drops files in suspicious directories 24->75 34 wj0s.arm.elf 24->34         started        37 wj0s.arm.elf systemctl 24->37         started        39 wj0s.arm.elf systemctl 24->39         started        41 3 other processes 24->41 signatures11 process12 signatures13 53 Sample tries to kill multiple processes (SIGKILL) 34->53
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/da7cac6a41fb53171db401c5a952bcf1a4796068fd07c0900027dc5919cd4a7c
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/da7cac6a41fb53171db401c5a952bcf1a4796068fd07c0900027dc5919cd4a7c/
Threat name:
Linux.Backdoor.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2026-10-08 23:52:23 UTC
File Type:
ELF32 Little (SO)
AV detection:
14 of 38 (36.84%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3j6ky2sb7njrohnuahc2suv46gshsydi7ud4beaae7ofsgonjj6a._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet credential_access defense_evasion discovery persistence privilege_escalation
Link:
https://tria.ge/reports/261009-gw77rsbw4v/
Behaviour
Reads runtime system information
Writes file to shm directory
Writes file to tmp directory
Changes its process name
Reads system network configuration
Reads process memory
Deletes log files
Enumerates active TCP sockets
Enumerates running processes
Modifies systemd
Write file to user bin folder
Writes file to system bin folder
Modifies Watchdog functionality
Detects Mirai
Family: Mirai
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/da7cac6a41fb53171db401c5a952bcf1a4796068fd07c0900027dc5919cd4a7c

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:Detect_all_IPv6_variants
Create hunting rule
Author:Bierchermuesli
Description:Generic IPv6 catcher
Rule name:dsc
Create hunting rule
Author:Aaron DeVera
Description:Discord domains
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:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:generic_IG_stealer
Create hunting rule
Author:RE4rensics
Description:Detects stealers that interacts with IG endpoints after stealing IG cookies
Rule name:MIRAI_OHSHIT_payload
Create hunting rule
Author:AfterPacket
Description:MIRAI_OHSHIT ELF payload -- compiled-in C2 set, all architectures
Reference:https://github.com/Afterpacket/drosera-threat-intel
Rule name:MIRAI_TELNETCURL_payload
Create hunting rule
Author:AfterPacket
Description:Mirai-lineage ELF payload carrying the leaked-source decoy domain
Reference:https://github.com/Afterpacket/drosera-threat-intel
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:unixredflags3
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags
Rule name:Web_Generic_Binary_URL_Download
Create hunting rule
Author:Serhii Kocherhan
Description:Detects files containing HTTP or HTTPS links pointing directly to .bin payload extensions.

File information

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

Web download

Mirai

sh dc7815509fa8976eaca782547f3f64471e875b37536a8aefc6b81222c4ac8646

Mirai

sh 189d9cb2885638238f19f4dd911ac1ed72a16703cdf5a84985b0d3de4f0ba6f9

Mirai

elf da7cac6a41fb53171db401c5a952bcf1a4796068fd07c0900027dc5919cd4a7c

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3946792/
  
Delivery method
Distributed via web download
  
Dropped by
SHA256 189d9cb2885638238f19f4dd911ac1ed72a16703cdf5a84985b0d3de4f0ba6f9
  
Dropped by
MD5 7513fe851c8e3904402cbd03f3f01205
  
URLhaus
https://urlhaus.abuse.ch/url/3946789/

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