MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b74fb7bead733da7f79387a8ca81e45d5b683da8e9d5271e68cca1d2534b3c4b. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b74fb7bead733da7f79387a8ca81e45d5b683da8e9d5271e68cca1d2534b3c4b
SHA3-384 hash: 81a09a46edfca22eba92efd833417510b840f0574c1807e295cf942eb41aa1b445605b5464d2bf13450d9b8b3af9c5b5
SHA1 hash: c96a9d40d1b6d1fcbb2441c7cf9f459f3e4bef38
MD5 hash: c95d2b323f1eedf2c8491a0baed5ee2d
humanhash: quebec-river-oklahoma-red
File name:nwfaiehg4ewijfgriehgirehaughrarg.arm7
Download: download sample
Signature Mirai
Create hunting rule
File size:66'960 bytes
First seen:2025-12-06 19:40:46 UTC
Last seen:2025-12-06 21:24:33 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:D5JLdA1B/r8At1wfCuLaWLqdFi+4bJXH+3F:DLLdA1VrlDwfCuLb4oJu1
TLSH T19C6312C6722FBC528B45BD7763BB57914799FFBD4A948C23218C1C283EE11A938F4246
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) :66'960 bytes
File size (de-compressed) :177'915 bytes
Format:linux/arm
Unpacked file: 2f87e2e7c230cec54ca0246266e49c40159937252e7869de3ce2f2e6d404bd39

Intelligence

File Origin
# of uploads :
3
# of downloads :
31
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/cc889e05-ecc0-4204-920c-a3c4a075ebbd/
Detection(s):
SecuriteInfo.com.Linux.Siggen.9999.15637.17206.UNOFFICIAL
Create hunting rule

Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade mirai packed upx
Link:
https://www.filescan.io/uploads/69348701ff25e40750d5da62/reports/c3d1d371-f27c-4955-97b0-0cffac650113/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-06T17:50:00Z UTC
Last seen:
2025-12-06T21:07:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/b74fb7bead733da7f79387a8ca81e45d5b683da8e9d5271e68cca1d2534b3c4b/results?tab=lookup
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/fbd817b3-d619-455f-8af2-95ce2decd70e
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1828132
Signature
Deletes system log files
Manipulation of devices in /dev
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Sends malformed DNS queries
Uses dynamic DNS services
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1828132 Sample: nwfaiehg4ewijfgriehgirehaug... Startdate: 06/12/2025 Architecture: LINUX Score: 68 25 yukivela.duckdns.org. [malformed] 2->25 27 lizadesm.duckdns.org. [malformed] 2->27 29 9 other IPs or domains 2->29 31 Multi AV Scanner detection for submitted file 2->31 33 Sample is packed with UPX 2->33 10 nwfaiehg4ewijfgriehgirehaughrarg.arm7.elf 2->10         started        12 python3.8 dpkg 2->12         started        signatures3 35 Sends malformed DNS queries 27->35 37 Uses dynamic DNS services 27->37 process4 process5 14 nwfaiehg4ewijfgriehgirehaughrarg.arm7.elf 10->14         started        process6 16 nwfaiehg4ewijfgriehgirehaughrarg.arm7.elf 14->16         started        process7 18 nwfaiehg4ewijfgriehgirehaughrarg.arm7.elf 16->18         started        process8 20 nwfaiehg4ewijfgriehgirehaughrarg.arm7.elf 18->20         started        23 nwfaiehg4ewijfgriehgirehaughrarg.arm7.elf 18->23         started        signatures9 39 Manipulation of devices in /dev 20->39 41 Deletes system log files 20->41
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b74fb7bead733da7f79387a8ca81e45d5b683da8e9d5271e68cca1d2534b3c4b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b74fb7bead733da7f79387a8ca81e45d5b683da8e9d5271e68cca1d2534b3c4b/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-06 19:41:28 UTC
File Type:
ELF32 Little (Exe)
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=w5h3ppvnom62p54tq6umvapelvnwqpni5hksohtizsq5eu2lhrfq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery upx
Link:
https://tria.ge/reports/251206-yeazdahs6b/
Behaviour
Reads runtime system information
Changes its process name
Enumerates running processes
Deletes Audit logs
Deletes journal logs
Mirai
Mirai family
Malware Config
C2 Extraction:
frohncrop77.duckdns.org
catelcro.duckdns.org
fishertriv.duckdns.org
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/09172383-ee90-4099-8d18-bd94be1f07cd
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/b74fb7bead733da7f79387a8ca81e45d5b683da8e9d5271e68cca1d2534b3c4b

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:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:upx_packed_elf_v1
Create hunting rule
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 b74fb7bead733da7f79387a8ca81e45d5b683da8e9d5271e68cca1d2534b3c4b

(this sample)

Mirai

elf 2f87e2e7c230cec54ca0246266e49c40159937252e7869de3ce2f2e6d404bd39

  
URLhaus
https://urlhaus.abuse.ch/url/3728085/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 2f87e2e7c230cec54ca0246266e49c40159937252e7869de3ce2f2e6d404bd39
  
Dropping
MD5 957c3e7b0f1e2e96b0a0205aacb260c2

Comments