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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d41fd9018d83a1275535f8cbe0ee0b8cbfe440eeb0d9a29bc24a75643cf0a102. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d41fd9018d83a1275535f8cbe0ee0b8cbfe440eeb0d9a29bc24a75643cf0a102
SHA3-384 hash: 264ed0630938c571ae5296d19c613fea38935e6df0dc0e4fc8737eb34d658392c167f8ccecd55b44bad296e4e680525e
SHA1 hash: 450aa19cba5e4012c34539017607522965c0573d
MD5 hash: 45a5f8b3e999bc4953e29c84f1c6fd05
humanhash: nine-ten-orange-winner
File name:kworkerd-irq-bal
Download: download sample
Signature CoinMiner
Create hunting rule
File size:247'644 bytes
First seen:2026-06-20 20:51:04 UTC
Last seen:2026-06-20 21:28:33 UTC
File type: elf
MIME type:application/x-sharedlib
ssdeep 6144:f1h8ueLcXsnrYFQkrdk9zJfahXW9WIWeswUfCVzIOa:AueLo2rYFQkrdk8XQLb5a
TLSH T1DF3419A9BC40DB62C6E427BAFB4C429933134F74C3DD3506CD245F2976EB55B0A3A682
Magika elf
Reporter abuse_ch
Tags:CoinMiner elf upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 f9f8567aaa807983097deb4b7fb130cc2374ace1fb08a6a825324d892f11c140
File size (compressed) :106'952 bytes
File size (de-compressed) :247'644 bytes
Format:linux/arm
Packed file: f9f8567aaa807983097deb4b7fb130cc2374ace1fb08a6a825324d892f11c140

Intelligence

File Origin
# of uploads :
2
# of downloads :
85
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.Linux.BackDoor.Armada.1.23398.18172.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Sends data to a server
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
Collects information on the CPU
Changes the time when the file was created, accessed, or modified
Opens a port
Changes access rights for a written file
DNS request
Substitutes an application name
Creates or modifies files in /cron to set up autorun
Creates or modifies files in /init.d to set up autorun
Deleting of the original file
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
base64 expand gcc lolbin rust
Link:
https://www.filescan.io/uploads/6a36fd5c90632a45f72ee9eb/reports/31ff02fd-8140-4d0c-98ef-e3c4e9f4001c/overview
Verdict:
Clean
File Type:
elf.32.le
First seen:
2026-06-21T22:58:00Z UTC
Last seen:
2026-06-22T08:00:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/d41fd9018d83a1275535f8cbe0ee0b8cbfe440eeb0d9a29bc24a75643cf0a102/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/fd93d5c9-6022-4008-91f2-c62c73e58402
Behavior Graph:
Download SVG
%3 guuid=7df58f30-1e00-0000-f041-973e2d140000 pid=5165 /usr/bin/sudo guuid=70626f33-1e00-0000-f041-973e2e140000 pid=5166 /tmp/sample.bin guuid=7df58f30-1e00-0000-f041-973e2d140000 pid=5165->guuid=70626f33-1e00-0000-f041-973e2e140000 pid=5166 execve
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/20a7adab-43e3-40be-b095-03054bcf562e
Result
Threat name:
Xmrig
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad.mine
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1931387
Signature
Antivirus / Scanner detection for submitted sample
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
Multi AV Scanner detection for submitted file
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
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1931387 Sample: kworkerd-irq-bal.elf Startdate: 20/06/2026 Architecture: LINUX Score: 92 57 api.robotmarkethub.com 2->57 59 91.239.211.89, 36028, 43462, 43466 HOSTKEY-ASNL Germany 2->59 61 4 other IPs or domains 2->61 65 Antivirus / Scanner detection for submitted sample 2->65 67 Multi AV Scanner detection for submitted file 2->67 69 Yara detected Xmrig cryptocurrency miner 2->69 10 kworkerd-irq-bal.elf 2->10         started        13 systemd sh 2->13         started        15 systemd snapd-env-generator 2->15         started        17 3 other processes 2->17 signatures3 71 Performs DNS TXT record lookups 57->71 process4 signatures5 73 Found strings related to Crypto-Mining 10->73 19 kworkerd-irq-bal.elf 10->19         started        21 sh wget 13->21         started        24 sh sh 13->24         started        26 sh rm 13->26         started        process6 file7 28 kworkerd-irq-bal.elf 19->28         started        51 /tmp/..redis-sentinel, Bourne-Again 21->51 dropped process8 file9 55 /var/spool/cron/crontabs/root, ASCII 28->55 dropped 79 Opens /sys/class/net/* files useful for querying network interface information 28->79 81 Sample deletes itself 28->81 83 Sample tries to persist itself using cron 28->83 32 kworkerd-irq-bal.elf sh 28->32         started        35 kworkerd-irq-bal.elf sh 28->35         started        37 kworkerd-irq-bal.elf sh 28->37         started        39 kworkerd-irq-bal.elf sh 28->39         started        signatures10 process11 signatures12 63 Executes itself again with its parent PID as an argument (indicative of hampering debugging) 32->63 41 sh crontab 32->41         started        45 sh crontab 35->45         started        47 sh systemctl 37->47         started        49 sh systemctl 39->49         started        process13 file14 53 /var/spool/cron/crontabs/tmp.xp3Efq, ASCII 41->53 dropped 75 Sample tries to persist itself using cron 41->75 77 Executes the "crontab" command typically for achieving persistence 41->77 signatures15
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/d41fd9018d83a1275535f8cbe0ee0b8cbfe440eeb0d9a29bc24a75643cf0a102
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d41fd9018d83a1275535f8cbe0ee0b8cbfe440eeb0d9a29bc24a75643cf0a102/
Threat name:
Linux.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-06-20 20:53:01 UTC
File Type:
ELF32 Little (SO)
AV detection:
7 of 24 (29.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2qp5samnqoqsovjv7df6b3qlrs76iqhowdm2fg6cjj2wiphqueba._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Link:
https://tria.ge/reports/260620-znlmxahw6r/
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/d41fd9018d83a1275535f8cbe0ee0b8cbfe440eeb0d9a29bc24a75643cf0a102

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
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
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 f9f8567aaa807983097deb4b7fb130cc2374ace1fb08a6a825324d892f11c140

CoinMiner

elf d41fd9018d83a1275535f8cbe0ee0b8cbfe440eeb0d9a29bc24a75643cf0a102

(this sample)

  
Dropped by
SHA256 f9f8567aaa807983097deb4b7fb130cc2374ace1fb08a6a825324d892f11c140
  
URLhaus
https://urlhaus.abuse.ch/url/3868016/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 218e81a644c5b44c5206499baf86ff55

Comments