MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8acfc7ae345d55ea28156b52b2c62ef656410ef513d6b3871022b87d669b9913. 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


CoinMiner


Vendor detections: 8


Intelligence 8 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8acfc7ae345d55ea28156b52b2c62ef656410ef513d6b3871022b87d669b9913
SHA3-384 hash: 568cb3e26b966dbfb266b80dd03a404d4718d28f1204d2ee1f1f9e01cb8caff237c47c7c1c1928c17d5bfe9a81e544a1
SHA1 hash: 1c5e3767b8050c0cab017439eaad89f89bab75be
MD5 hash: b248137a9781a97e4bb14566ea5d25a3
humanhash: wyoming-oscar-butter-magnesium
File name:kworkerd-netns-rt
Download: download sample
Signature CoinMiner
Create hunting rule
File size:138'356 bytes
First seen:2026-06-20 06:01:19 UTC
Last seen:2026-06-21 03:52:12 UTC
File type: elf
MIME type:application/x-sharedlib
ssdeep 3072:sw6eSJYso7HOUQuQsOB2PGfDluMSZ75Ndb3nWKwVc:sk37OUaBjfZuN5f3nKc
TLSH T173D312FE0DA36B9AE576003E64BFCE482A11DC07E5A05C03544AEDDAC85D8B1D7832DB
Magika elf
Reporter abuse_ch
Tags:CoinMiner elf UPX
File size (compressed) :138'356 bytes
File size (de-compressed) :349'864 bytes
Format:linux/mips
Unpacked file: 57df2674f16175374bfba7367040ed79889fed9d71b06a96d34181e112f15e22

Intelligence

File Origin
# of uploads :
4
# of downloads :
61
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Result
Verdict:
Malware
Maliciousness:

Behaviour
Manages services
Deleting a recently created file
Collects information on the CPU
Sets a written file as executable
Receives data from a server
Connection attempt
DNS request
Runs as daemon
Creating a file in the %temp% directory
Launching a process
Opens a port
Sends data to a server
Creating a file
Changes the time when the file was created, accessed, or modified
Changes access rights for a written file
Kills critical processes
Substitutes an application name
Creates or modifies files in /cron to set up autorun
Deleting of the original file
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
packed upx
Link:
https://www.filescan.io/uploads/6a362cf39799578a6c42c42b/reports/aa6d5a3e-0cbf-42bb-ae58-7696d057486e/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
UPX
Botnet:
unknown
Number of open files:
1
Number of processes launched:
1
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/8acfc7ae345d55ea28156b52b2c62ef656410ef513d6b3871022b87d669b9913
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2026-06-20T03:17:00Z UTC
Last seen:
2026-06-20T13:04:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/8acfc7ae345d55ea28156b52b2c62ef656410ef513d6b3871022b87d669b9913/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/4dc30ad7-463a-42ba-8490-67fa36e89c74
Behavior Graph:
Download SVG
%3 guuid=4847fe13-1900-0000-37c8-bdfbc4130000 pid=5060 /usr/bin/sudo guuid=70350216-1900-0000-37c8-bdfbca130000 pid=5066 /tmp/sample.bin guuid=4847fe13-1900-0000-37c8-bdfbc4130000 pid=5060->guuid=70350216-1900-0000-37c8-bdfbca130000 pid=5066 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/ff3d41a5-8001-4c80-830d-775b6812e6a7
Result
Threat name:
Xmrig
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad.mine
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1931308
Signature
Drops invisible ELF files
Executes itself again with its parent PID as an argument (indicative of hampering debugging)
Executes the "crontab" command typically for achieving persistence
Found strings related to Crypto-Mining
Opens /sys/class/net/* files useful for querying network interface information
Performs DNS TXT record lookups
Sample deletes itself
Sample tries to persist itself using cron
Searches for CPU information (likely indicative of DDoS capability)
Suricata IDS alerts for network traffic
Writes identical ELF files to multiple locations
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1931308 Sample: kworkerd-netns-rt.elf Startdate: 20/06/2026 Architecture: LINUX Score: 96 106 api.robotmarkethub.com 2->106 108 91.239.211.89, 36036, 36038, 36044 HOSTKEY-ASNL Germany 2->108 110 4 other IPs or domains 2->110 112 Suricata IDS alerts for network traffic 2->112 114 Yara detected Xmrig cryptocurrency miner 2->114 13 systemd sh 2->13         started        15 kworkerd-netns-rt.elf 2->15         started        18 systemd snapd-env-generator 2->18         started        20 3 other processes 2->20 signatures3 116 Performs DNS TXT record lookups 106->116 process4 signatures5 22 sh sh 13->22         started        24 sh wget 13->24         started        27 sh rm 13->27         started        138 Found strings related to Crypto-Mining 15->138 29 kworkerd-netns-rt.elf 15->29         started        process6 file7 31 sh 22->31         started        33 sh 22->33         started        35 sh wget 22->35         started        41 17 other processes 22->41 104 /tmp/..redis-sentinel, POSIX 24->104 dropped 39 kworkerd-netns-rt.elf 29->39         started        process8 file9 43 sh .d 31->43         started        45 sh .d 33->45         started        96 /tmp/.d, ELF 35->96 dropped 122 Writes identical ELF files to multiple locations 35->122 124 Drops invisible ELF files 35->124 47 kworkerd-netns-rt.elf sh 39->47         started        49 kworkerd-netns-rt.elf sh 39->49         started        98 /run/.d, ELF 41->98 dropped 100 /dev/shm/.d, ELF 41->100 dropped 126 Searches for CPU information (likely indicative of DDoS capability) 41->126 128 Sample deletes itself 41->128 51 sh awk 41->51         started        53 sh cut 41->53         started        55 sh 41->55         started        57 sh 41->57         started        signatures10 process11 process12 59 .d 43->59         started        61 .d 45->61         started        63 sh systemctl 47->63         started        65 sh systemctl 49->65         started        process13 67 .d 59->67         started        71 .d 61->71         started        file14 102 /var/spool/cron/crontabs/root, ASCII 67->102 dropped 130 Opens /sys/class/net/* files useful for querying network interface information 67->130 132 Sample deletes itself 67->132 134 Sample tries to persist itself using cron 67->134 73 .d sh 67->73         started        76 .d sh 67->76         started        78 .d sh 71->78         started        80 .d sh 71->80         started        signatures15 process16 signatures17 82 sh crontab 73->82         started        86 sh crontab 76->86         started        136 Executes itself again with its parent PID as an argument (indicative of hampering debugging) 78->136 88 sh crontab 78->88         started        90 sh crontab 80->90         started        process18 file19 92 /var/spool/cron/crontabs/tmp.WPMvbP, ASCII 82->92 dropped 94 /var/spool/cron/crontabs/tmp.p0wiBC, ASCII 88->94 dropped 118 Sample tries to persist itself using cron 88->118 120 Executes the "crontab" command typically for achieving persistence 88->120 signatures20
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/8acfc7ae345d55ea28156b52b2c62ef656410ef513d6b3871022b87d669b9913
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8acfc7ae345d55ea28156b52b2c62ef656410ef513d6b3871022b87d669b9913/
Threat name:
Linux.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-06-20 06:01:55 UTC
File Type:
ELF32 Big (SO)
AV detection:
6 of 24 (25.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rlh4plrulvk6ukavnnjlfrro6zlecdxvcpllhbyqek4h2zu3tejq._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
antivm defense_evasion discovery execution persistence privilege_escalation upx
Link:
https://tria.ge/reports/260620-gra2gadt8q/
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
Writes file to tmp directory
Changes its process name
Checks CPU configuration
Reads system network configuration
Creates/modifies Cron job
Enumerates active TCP sockets
Enumerates running processes
Modifies systemd
Reads MAC address of network interface
Deletes itself
Modifies Watchdog functionality
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/8acfc7ae345d55ea28156b52b2c62ef656410ef513d6b3871022b87d669b9913

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
Create hunting rule

File information

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

Web download

CoinMiner

elf 8acfc7ae345d55ea28156b52b2c62ef656410ef513d6b3871022b87d669b9913

(this sample)

CoinMiner

elf 57df2674f16175374bfba7367040ed79889fed9d71b06a96d34181e112f15e22

  
URLhaus
https://urlhaus.abuse.ch/url/3868015/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 57df2674f16175374bfba7367040ed79889fed9d71b06a96d34181e112f15e22
  
Dropping
MD5 aac094cf28c8a025bc8085922df80f01

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