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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a32e7b6c1bab32642fa78f78d1891f8ba1ca8c4fa2bb382ea91350c9290a1107. 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: 7


Intelligence 7 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a32e7b6c1bab32642fa78f78d1891f8ba1ca8c4fa2bb382ea91350c9290a1107
SHA3-384 hash: 57c3f4034d89bf9f0e1090460bbc5b060638d36e51423acea45402cedb6c2ab7b0b31b1bf82ec45e05703d8395207f93
SHA1 hash: 374c01e99cb6771a0be332609c47f46b364bddbe
MD5 hash: 0e30a8647ea9499eca8937826ba68949
humanhash: london-princess-oregon-black
File name:kworkerd-blkcg
Download: download sample
Signature CoinMiner
Create hunting rule
File size:243'552 bytes
First seen:2026-06-20 20:31:24 UTC
Last seen:2026-06-20 20:48:52 UTC
File type: elf
MIME type:application/x-sharedlib
ssdeep 6144:srLotycUVDE1UAeEssM8jaMK3771WChKHYOa:YLoUc3UAeETaMyBYa
TLSH T11D3419A9BC40DB62C6D427BABB5D829933130F74C3DE7506CC241F2976EB55F0A3A582
Magika elf
Reporter abuse_ch
Tags:CoinMiner elf upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 585b523ab776fe15acd2f5ad75c58dfec436a4311c7bbc96758c7968ccb9ace3
File size (compressed) :104'988 bytes
File size (de-compressed) :243'552 bytes
Format:linux/arm
Packed file: 585b523ab776fe15acd2f5ad75c58dfec436a4311c7bbc96758c7968ccb9ace3

Intelligence

File Origin
# of uploads :
2
# of downloads :
83
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.Linux.BackDoor.Armada.1.15398.23424.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Opens a port
Collects information on the CPU
Creating a file in the %temp% directory
Changes access rights for a written file
Creating a file
Sends data to a server
Connection attempt
Receives data from a server
Runs as daemon
Sets a written file as executable
Changes the time when the file was created, accessed, or modified
Launching a process
Manages services
Creates or modifies files in /cron to set up autorun
Substitutes an application name
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/6a36f8a99799578a6c43256d/reports/9795af4e-d3e3-4a8d-9358-697030372d75/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
UPX
Botnet:
unknown
Number of open files:
0
Number of processes launched:
0
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/a32e7b6c1bab32642fa78f78d1891f8ba1ca8c4fa2bb382ea91350c9290a1107
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Clean
File Type:
elf.32.le
First seen:
2026-06-21T01:58:00Z UTC
Last seen:
2026-06-22T08:00:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/a32e7b6c1bab32642fa78f78d1891f8ba1ca8c4fa2bb382ea91350c9290a1107/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/696f49d2-d315-4381-a5a2-01c21ca42fdb
Behavior Graph:
Download SVG
%3 guuid=0b804455-1900-0000-78c6-b65bd20f0000 pid=4050 /usr/bin/sudo guuid=23596957-1900-0000-78c6-b65bdb0f0000 pid=4059 /tmp/sample.bin guuid=0b804455-1900-0000-78c6-b65bd20f0000 pid=4050->guuid=23596957-1900-0000-78c6-b65bdb0f0000 pid=4059 execve
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/0078c859-0fc2-4276-be99-fe1c74b654be
Result
Threat name:
Xmrig
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad.mine
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1931386
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: 1931386 Sample: kworkerd-blkcg.elf Startdate: 20/06/2026 Architecture: LINUX Score: 92 57 api.robotmarkethub.com 2->57 59 91.239.211.89, 36048, 43482, 43484 HOSTKEY-ASNL Germany 2->59 61 3 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-blkcg.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-blkcg.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-blkcg.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-blkcg.elf sh 28->32         started        35 kworkerd-blkcg.elf sh 28->35         started        37 kworkerd-blkcg.elf sh 28->37         started        39 kworkerd-blkcg.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.lQ25vE, 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/a32e7b6c1bab32642fa78f78d1891f8ba1ca8c4fa2bb382ea91350c9290a1107
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a32e7b6c1bab32642fa78f78d1891f8ba1ca8c4fa2bb382ea91350c9290a1107/
Threat name:
Linux.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-06-20 20:32:47 UTC
File Type:
ELF32 Little (SO)
AV detection:
8 of 24 (33.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=umxhw3a3vmzgil5hr54ndci7roq4vdcpuk5tqlvjcnimskikcedq._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Link:
https://tria.ge/reports/260620-za1vnshv3n/
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/a32e7b6c1bab32642fa78f78d1891f8ba1ca8c4fa2bb382ea91350c9290a1107

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 585b523ab776fe15acd2f5ad75c58dfec436a4311c7bbc96758c7968ccb9ace3

CoinMiner

elf a32e7b6c1bab32642fa78f78d1891f8ba1ca8c4fa2bb382ea91350c9290a1107

(this sample)

  
Dropped by
SHA256 585b523ab776fe15acd2f5ad75c58dfec436a4311c7bbc96758c7968ccb9ace3
  
URLhaus
https://urlhaus.abuse.ch/url/3868018/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 2844ddb0b662811e1e3f0b7f41f86d00

Comments