MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c77733b43b2de248358fa3b334f4375def037a005cc4880e9455c262ca3263be. 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 4 File information Comments
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SHA256 hash: c77733b43b2de248358fa3b334f4375def037a005cc4880e9455c262ca3263be
SHA3-384 hash: 684b3a67e4593d5fbba4bf193b1bc32301fefaa62bf82259688c1f6a235f12f581227ffd770a8271d2f2ed7790eada90
SHA1 hash: a644d250332e05081c9ffe416e8bc83f7f7228a3
MD5 hash: b376967fbf4537cdc5bf28c8766e45b2
humanhash: minnesota-ack-mexico-fillet
File name:nwfaiehg4ewijfgriehgirehaughrarg.arm7
Download: download sample
Signature Mirai
Create hunting rule
File size:68'132 bytes
First seen:2025-09-15 21:06:51 UTC
Last seen:2025-09-15 21:18:50 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:NBJXDyilyL9HAi/k2iIJdSLvAZ/aep8I8xLjSp4o4x4TTGq:NBVDJGgi/k7cdSLv4ayN8xLo4pxwTT
TLSH T1346301D28552FD308623467A567E1C4A38C6CFD0A1CA343FAA59950D76E2863DAFC1CB
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) :68'132 bytes
File size (de-compressed) :182'265 bytes
Format:linux/arm
Unpacked file: b66de47ecd0ff70ddc9bd24b5109396306270527f0cd60a5d104b3c0296f7b5f

Intelligence

File Origin
# of uploads :
2
# of downloads :
38
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Siggen.9999.25422.4185.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Receives data from a server
Kills processes
Sets a written file as executable
DNS request
Runs as daemon
Sends data to a server
Connection attempt
Launching a process
Substitutes an application name
Creates or modifies files in /init.d to set up autorun
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade packed threat upx
Link:
https://www.filescan.io/uploads/68c8801073287948292b04e5/reports/224493f0-b69a-401d-b364-e3d69c0dcbbe/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-09-15T14:08:00Z UTC
Last seen:
2025-09-15T14:08:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.bl HEUR:Backdoor.Linux.Gafgyt.bj
Link:
https://opentip.kaspersky.com/c77733b43b2de248358fa3b334f4375def037a005cc4880e9455c262ca3263be/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/e01d86bf-fae4-4c4e-bd66-37276bbc174f
Behavior Graph:
Download SVG
%3 guuid=e3f6728d-1900-0000-3ad9-830108070000 pid=1800 /usr/bin/sudo guuid=81ab5e8f-1900-0000-3ad9-83010f070000 pid=1807 /tmp/sample.bin guuid=e3f6728d-1900-0000-3ad9-830108070000 pid=1800->guuid=81ab5e8f-1900-0000-3ad9-83010f070000 pid=1807 execve
Malware family:
Mirai
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0f25c4c3-0f46-413b-b6af-17c0e9d0a445
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1778099
Signature
Deletes system log files
Drops files in suspicious directories
Manipulation of devices in /dev
Multi AV Scanner detection for submitted file
Queries random domain names (often used to prevent blacklisting and sinkholes)
Sample is packed with UPX
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Sends malformed DNS queries
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1778099 Sample: nwfaiehg4ewijfgriehgirehaug... Startdate: 15/09/2025 Architecture: LINUX Score: 80 31 xosjcq.twilightparadox.com. [malformed] 2->31 33 cnc.naldlh.lol. [malformed] 2->33 35 5 other IPs or domains 2->35 37 Multi AV Scanner detection for submitted file 2->37 39 Queries random domain names (often used to prevent blacklisting and sinkholes) 2->39 41 Sample is packed with UPX 2->41 10 nwfaiehg4ewijfgriehgirehaughrarg.arm7.elf 2->10         started        signatures3 43 Sends malformed DNS queries 33->43 process4 process5 12 nwfaiehg4ewijfgriehgirehaughrarg.arm7.elf 10->12         started        process6 14 nwfaiehg4ewijfgriehgirehaughrarg.arm7.elf 12->14         started        file7 29 /etc/init.d/sysd, POSIX 14->29 dropped 49 Sample tries to set files in /etc globally writable 14->49 51 Drops files in suspicious directories 14->51 53 Sample tries to persist itself using System V runlevels 14->53 18 nwfaiehg4ewijfgriehgirehaughrarg.arm7.elf 14->18         started        20 nwfaiehg4ewijfgriehgirehaughrarg.arm7.elf sh 14->20         started        signatures8 process9 process10 22 nwfaiehg4ewijfgriehgirehaughrarg.arm7.elf 18->22         started        25 nwfaiehg4ewijfgriehgirehaughrarg.arm7.elf 18->25         started        27 sh cp 20->27         started        signatures11 45 Manipulation of devices in /dev 22->45 47 Deletes system log files 22->47
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/c77733b43b2de248358fa3b334f4375def037a005cc4880e9455c262ca3263be
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c77733b43b2de248358fa3b334f4375def037a005cc4880e9455c262ca3263be/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/c77733b43b2de248358fa3b334f4375def037a005cc4880e9455c262ca3263be
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-09-15 16:43:19 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=y53thnb3fxreqnmpuoztj5bxlxxqg6qaltciqduukxbgfsrsmo7a._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet credential_access discovery execution persistence upx
Link:
https://tria.ge/reports/250915-zygfyawvgv/
Behaviour
Command and Scripting Interpreter: Unix Shell
Reads runtime system information
System Network Configuration Discovery
Changes its process name
Reads system network configuration
Reads process memory
Enumerates active TCP sockets
Enumerates running processes
Modifies init.d
Modifies rc script
Mirai
Mirai family
Malware Config
C2 Extraction:
scan.naldlh.lol
ajczgt.ignorelist.com
naldlh.jumpingcrab.com
xosjcq.twilightparadox.com
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/d249aa4c-98a1-4672-a690-8b1cb3c218cd
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/c77733b43b2de248358fa3b334f4375def037a005cc4880e9455c262ca3263be

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:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
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 c77733b43b2de248358fa3b334f4375def037a005cc4880e9455c262ca3263be

(this sample)

Mirai

elf b66de47ecd0ff70ddc9bd24b5109396306270527f0cd60a5d104b3c0296f7b5f

  
URLhaus
https://urlhaus.abuse.ch/url/3624736/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 b66de47ecd0ff70ddc9bd24b5109396306270527f0cd60a5d104b3c0296f7b5f
  
Dropping
MD5 2fc7b9766d80c3f0cca527d79746d767

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