MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0fd0cb3b4d131fcb375930de708a2a777c2e7dfbe6b81f833ea86000ae043206. 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: 6


Intelligence 6 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0fd0cb3b4d131fcb375930de708a2a777c2e7dfbe6b81f833ea86000ae043206
SHA3-384 hash: 1c58dfc95f206dcd06c6b3bfb51631311e83e70a1f360dec46cb234b5d2e9376a5699a7c561565746879eef06cbea3f5
SHA1 hash: 86886f5208f4b7bcd5ace35c7eb762d914add596
MD5 hash: 5a54ce4005ca964c0f690ce5fcc521c2
humanhash: orange-coffee-black-item
File name:kworkerd-events
Download: download sample
Signature CoinMiner
Create hunting rule
File size:239'032 bytes
First seen:2026-06-25 14:17:21 UTC
Last seen:2026-06-25 23:41:03 UTC
File type: elf
MIME type:application/x-sharedlib
ssdeep 6144:XP7fMuCu360OeZj9iiCWBr6CYDnZw+W3TDZ6PWq:fDYu360fZjJCY2CYDSjD96+q
TLSH T143345B0AF652E1F1F5A76531018ED37A1A70AD354152D896FF4B3EB0ECB1606AF1A32C
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:CoinMiner elf

Intelligence

File Origin
# of uploads :
2
# of downloads :
55
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Manages services
Sets a written file as executable
Creating a file in the %temp% directory
Receives data from a server
Connection attempt
Launching a process
Creating a file
Opens a port
Changes access rights for a written file
DNS request
Substitutes an application name
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
base64 gcc rust
Link:
https://www.filescan.io/uploads/6a3d388440459c41ea4ea341/reports/f04933f4-8102-420b-97f4-9be58d38929c/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
UPX
Botnet:
unknown
Number of open files:
0
Number of processes launched:
1
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/0fd0cb3b4d131fcb375930de708a2a777c2e7dfbe6b81f833ea86000ae043206
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/860e0584-3324-4369-88ba-4d7f5eeba7f0
Behavior Graph:
Download SVG
%3 guuid=e2a1a742-1900-0000-6970-00b9030f0000 pid=3843 /usr/bin/sudo guuid=086ba144-1900-0000-6970-00b9070f0000 pid=3847 /tmp/sample.bin guuid=e2a1a742-1900-0000-6970-00b9030f0000 pid=3843->guuid=086ba144-1900-0000-6970-00b9070f0000 pid=3847 execve guuid=6a082e45-1900-0000-6970-00b90a0f0000 pid=3850 /tmp/sample.bin guuid=086ba144-1900-0000-6970-00b9070f0000 pid=3847->guuid=6a082e45-1900-0000-6970-00b90a0f0000 pid=3850 clone guuid=8f2f3445-1900-0000-6970-00b90b0f0000 pid=3851 /tmp/sample.bin net send-data write-config write-file zombie guuid=6a082e45-1900-0000-6970-00b90a0f0000 pid=3850->guuid=8f2f3445-1900-0000-6970-00b90b0f0000 pid=3851 clone ffee5cfb-bb94-52c2-8935-ae3a87e774db 127.0.0.1:42780 guuid=8f2f3445-1900-0000-6970-00b90b0f0000 pid=3851->ffee5cfb-bb94-52c2-8935-ae3a87e774db con 54d92a3b-1447-55af-b534-047898c60c8d 1.1.1.1:53 guuid=8f2f3445-1900-0000-6970-00b90b0f0000 pid=3851->54d92a3b-1447-55af-b534-047898c60c8d send: 40B guuid=8f2f3445-1900-0000-6970-00b90b0f0000 pid=3853 /tmp/sample.bin guuid=8f2f3445-1900-0000-6970-00b90b0f0000 pid=3851->guuid=8f2f3445-1900-0000-6970-00b90b0f0000 pid=3853 clone guuid=6d99f646-1900-0000-6970-00b9130f0000 pid=3859 /usr/bin/dash guuid=8f2f3445-1900-0000-6970-00b90b0f0000 pid=3851->guuid=6d99f646-1900-0000-6970-00b9130f0000 pid=3859 execve guuid=b2ca2377-1900-0000-6970-00b9d10f0000 pid=4049 /usr/bin/dash zombie guuid=8f2f3445-1900-0000-6970-00b90b0f0000 pid=3851->guuid=b2ca2377-1900-0000-6970-00b9d10f0000 pid=4049 execve guuid=bd352047-1900-0000-6970-00b9140f0000 pid=3860 /usr/bin/systemctl guuid=6d99f646-1900-0000-6970-00b9130f0000 pid=3859->guuid=bd352047-1900-0000-6970-00b9140f0000 pid=3860 execve guuid=c1145f77-1900-0000-6970-00b9d20f0000 pid=4050 /usr/bin/systemctl guuid=b2ca2377-1900-0000-6970-00b9d10f0000 pid=4049->guuid=c1145f77-1900-0000-6970-00b9d20f0000 pid=4050 execve
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/e909a436-ba4f-44b6-9a44-301d12930464
Result
Threat name:
Xmrig
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad.mine
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1933763
Signature
Antivirus / Scanner detection for submitted sample
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: 1933763 Sample: kworkerd-events.elf Startdate: 25/06/2026 Architecture: LINUX Score: 100 80 api.robotmarkethub.com 2->80 82 91.239.211.89, 36032, 36034, 43470 HOSTKEY-ASNL Germany 2->82 84 4 other IPs or domains 2->84 98 Antivirus detection for dropped file 2->98 100 Antivirus / Scanner detection for submitted sample 2->100 102 Yara detected Xmrig cryptocurrency miner 2->102 12 systemd sh 2->12         started        14 kworkerd-events.elf 2->14         started        17 systemd snapd-env-generator 2->17         started        19 3 other processes 2->19 signatures3 104 Performs DNS TXT record lookups 80->104 process4 signatures5 21 sh sh 12->21         started        24 sh wget 12->24         started        26 sh rm 12->26         started        116 Found strings related to Crypto-Mining 14->116 28 kworkerd-events.elf 14->28         started        process6 file7 76 /dev/shm/.exectest.6257, POSIX 21->76 dropped 30 sh .d 21->30         started        32 sh wget 21->32         started        36 sh 21->36         started        40 28 other processes 21->40 78 /tmp/..redis-sentinel, POSIX 24->78 dropped 38 kworkerd-events.elf 28->38         started        process8 file9 42 .d 30->42         started        70 /dev/shm/.d, ELF 32->70 dropped 86 Drops invisible ELF files 32->86 44 sh grep 36->44         started        47 kworkerd-events.elf sh 38->47         started        49 kworkerd-events.elf sh 38->49         started        88 Searches for CPU information (likely indicative of DDoS capability) 40->88 90 Sample deletes itself 40->90 92 Executes the "nc" (netcat) command used to establish arbitrary TCP or UDP connections and listens 40->92 signatures10 process11 signatures12 51 .d 42->51         started        114 Searches for CPU information (likely indicative of DDoS capability) 44->114 55 sh systemctl 47->55         started        57 sh systemctl 49->57         started        process13 file14 74 /var/spool/cron/crontabs/root, ASCII 51->74 dropped 106 Opens /sys/class/net/* files useful for querying network interface information 51->106 108 Sample deletes itself 51->108 110 Sample tries to persist itself using cron 51->110 59 .d sh 51->59         started        62 .d sh 51->62         started        signatures15 process16 signatures17 112 Executes itself again with its parent PID as an argument (indicative of hampering debugging) 59->112 64 sh crontab 59->64         started        68 sh crontab 62->68         started        process18 file19 72 /var/spool/cron/crontabs/tmp.lR7GRf, ASCII 64->72 dropped 94 Sample tries to persist itself using cron 64->94 96 Executes the "crontab" command typically for achieving persistence 64->96 signatures20
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/0fd0cb3b4d131fcb375930de708a2a777c2e7dfbe6b81f833ea86000ae043206
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0fd0cb3b4d131fcb375930de708a2a777c2e7dfbe6b81f833ea86000ae043206/
Gathering data
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=b7imwo2ncmp4wn2zgdphbcrko56c47p3424b7az6vbqablqegida._file
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/0fd0cb3b4d131fcb375930de708a2a777c2e7dfbe6b81f833ea86000ae043206

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:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:unixredflags3
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags

File information

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

Web download

CoinMiner

elf 0fd0cb3b4d131fcb375930de708a2a777c2e7dfbe6b81f833ea86000ae043206

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3868017/
  
Delivery method
Distributed via web download

Comments