MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 22fb0c5e2a8ac8087df00e90507edeb9a57756d5ddb81d78952ae7ce4e690c51. 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: 5


Intelligence 5 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 22fb0c5e2a8ac8087df00e90507edeb9a57756d5ddb81d78952ae7ce4e690c51
SHA3-384 hash: e55fa1552e3954493663621016321fba303d7c59f294818035d1ae6ab6268738a4e567f501474c9b3b271eb458eb3423
SHA1 hash: ae2367db274dcd90d6cd037389aa317a843cd110
MD5 hash: 5c418512c9c5e322a48803a1d5d0a851
humanhash: venus-harry-fruit-vermont
File name:kworkerd-netns
Download: download sample
Signature CoinMiner
Create hunting rule
File size:131'996 bytes
First seen:2026-06-25 18:15:11 UTC
Last seen:Never
File type: elf
MIME type:application/x-sharedlib
ssdeep 3072:E7PR2COr3MArjxZ6QHfEq19k+MG9G41y58oYOcVp:8Z2Tr8AGQ8qkpWGcy58o2p
TLSH T1E6D3136461711C8EE693607E6BF513B17624164E32CBEEC7BEBB6379CC084893C86517
Magika elf
Reporter abuse_ch
Tags:CoinMiner elf UPX
File size (compressed) :131'996 bytes
File size (de-compressed) :333'388 bytes
Format:linux/mips
Unpacked file: 928cbf57e9ff5904a4d612017a47a99fd97efb3d468ece1b81b5a82017f549fd

Intelligence

File Origin
# of uploads :
1
# of downloads :
52
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
DNS request
Changes the time when the file was created, accessed, or modified
Creating a file in the %temp% directory
Changes access rights for a written file
Sends data to a server
Collects information on the CPU
Receives data from a server
Sets a written file as executable
Opens a port
Connection attempt
Runs as daemon
Launching a process
Manages services
Creates or modifies files in /cron to set up autorun
Substitutes an application name
Kills critical processes
Deleting of the original file
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
packed upx
Link:
https://www.filescan.io/uploads/6a3d704ef96a0d780a26743b/reports/5f2875f5-2056-4f15-ab50-4708471a2c99/overview
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/73032e57-842c-40ed-bf27-176b31e9a606
Behavior Graph:
Download SVG
%3 guuid=e65f7ef8-1e00-0000-fb25-8fe33e140000 pid=5182 /usr/bin/sudo guuid=665835fa-1e00-0000-fb25-8fe342140000 pid=5186 /tmp/sample.bin guuid=e65f7ef8-1e00-0000-fb25-8fe33e140000 pid=5182->guuid=665835fa-1e00-0000-fb25-8fe342140000 pid=5186 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/333439ae-49cc-441a-8a2b-f7246d469ed5
Result
Threat name:
Xmrig
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad.mine
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1933880
Signature
Antivirus detection for dropped file
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
Executes the "nc" (netcat) command used to establish arbitrary TCP or UDP connections and listens
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)
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1933880 Sample: kworkerd-netns.elf Startdate: 25/06/2026 Architecture: LINUX Score: 96 84 api.robotmarkethub.com 2->84 86 91.239.211.89, 47270, 60178, 60180 HOSTKEY-ASNL Germany 2->86 88 99 other IPs or domains 2->88 98 Antivirus detection for dropped file 2->98 100 Yara detected Xmrig cryptocurrency miner 2->100 12 systemd sh 2->12         started        14 kworkerd-netns.elf 2->14         started        17 systemd snapd-env-generator 2->17         started        19 systemd snapd-env-generator 2->19         started        signatures3 102 Performs DNS TXT record lookups 84->102 process4 signatures5 21 sh sh 12->21         started        24 sh wget 12->24         started        26 sh rm 12->26         started        118 Found strings related to Crypto-Mining 14->118 28 kworkerd-netns.elf 14->28         started        process6 file7 80 /dev/shm/.exectest.5537, POSIX 21->80 dropped 30 sh .d 21->30         started        32 sh wget 21->32         started        36 sh 21->36         started        40 28 other processes 21->40 82 /tmp/..redis-sentinel, POSIX 24->82 dropped 38 kworkerd-netns.elf 28->38         started        process8 file9 42 .d 30->42         started        74 /dev/shm/.d, ELF 32->74 dropped 90 Drops invisible ELF files 32->90 44 sh grep 36->44         started        47 kworkerd-netns.elf sh 38->47         started        49 kworkerd-netns.elf sh 38->49         started        92 Searches for CPU information (likely indicative of DDoS capability) 40->92 94 Sample deletes itself 40->94 96 Executes the "nc" (netcat) command used to establish arbitrary TCP or UDP connections and listens 40->96 signatures10 process11 signatures12 51 .d 42->51         started        116 Searches for CPU information (likely indicative of DDoS capability) 44->116 55 sh systemctl 47->55         started        57 sh systemctl 49->57         started        process13 file14 76 /var/spool/cron/crontabs/root, ASCII 51->76 dropped 104 Opens /sys/class/net/* files useful for querying network interface information 51->104 106 Sample deletes itself 51->106 108 Sample tries to persist itself using cron 51->108 59 .d sh 51->59         started        62 .d sh 51->62         started        64 .d 51->64         started        66 199 other processes 51->66 signatures15 process16 signatures17 114 Executes itself again with its parent PID as an argument (indicative of hampering debugging) 59->114 68 sh crontab 59->68         started        72 sh crontab 62->72         started        process18 file19 78 /var/spool/cron/crontabs/tmp.FBNL0u, ASCII 68->78 dropped 110 Sample tries to persist itself using cron 68->110 112 Executes the "crontab" command typically for achieving persistence 68->112 signatures20
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/22fb0c5e2a8ac8087df00e90507edeb9a57756d5ddb81d78952ae7ce4e690c51
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/22fb0c5e2a8ac8087df00e90507edeb9a57756d5ddb81d78952ae7ce4e690c51/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=el5qyxrkrleaq7pqb2ifa7w6xgsxovwv3w4b26evflt44ttjbriq._file
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: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 22fb0c5e2a8ac8087df00e90507edeb9a57756d5ddb81d78952ae7ce4e690c51

(this sample)

CoinMiner

elf 928cbf57e9ff5904a4d612017a47a99fd97efb3d468ece1b81b5a82017f549fd

  
URLhaus
https://urlhaus.abuse.ch/url/3868019/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 928cbf57e9ff5904a4d612017a47a99fd97efb3d468ece1b81b5a82017f549fd
  
Dropping
MD5 9165758bed0c42edf44ef0fbf4fda346

Comments