MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b1c1fb8b6029ebaa09ed7eadc12868d1cc5b01b4d3ff6b83fe8592edd7dbb249. 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 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b1c1fb8b6029ebaa09ed7eadc12868d1cc5b01b4d3ff6b83fe8592edd7dbb249
SHA3-384 hash: e8a527b49db16383704aa49bec7b781c46d95586ba7ccfc51b31d63e7e448517f8ca3c1bc54307e3f9650a5dd9ed72c7
SHA1 hash: 423c1c30e670e393e94176ba09adbdce3ea2385e
MD5 hash: 877b1d69c59f591cf06249ad5b47b890
humanhash: arizona-island-undress-whiskey
File name:arm7
Download: download sample
Signature CoinMiner
Create hunting rule
File size:3'862'820 bytes
First seen:2025-10-29 14:59:52 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 49152:3Hz953O8K2OzTuSbo80ee716TMoCNPHoHOmKtPnK+g4k:3Hz9gRnbo8ugLCyzKtPnK1l
TLSH T14E065C81FC419F56C9D42A7AF76E8388731307BAD2DA70069D145B3477DF89A0E3BA42
telfhash t178f05c24ccd92a24e18491ca9191e63d587e28899f174db5d7dac4ad18078d028a0b35
Magika elf
Reporter abuse_ch
Tags:CoinMiner elf upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 229496b55d0668a40fe3d969ba4e942dc2c2fd7452b3d6f79c6beb0db631dc12
File size (compressed) :1'300'628 bytes
File size (de-compressed) :3'862'820 bytes
Format:linux/arm
Packed file: 229496b55d0668a40fe3d969ba4e942dc2c2fd7452b3d6f79c6beb0db631dc12

Intelligence

File Origin
# of uploads :
1
# of downloads :
40
Origin country :
NL NL
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Changes access rights for a written file
Changes the time when the file was created, accessed, or modified
Runs as daemon
Creating a file
Launching a process
Creates or modifies files in /cron to set up autorun
Substitutes an application name
Verdict:
Adware
File Type:
elf.32.le
First seen:
2025-10-29T13:57:00Z UTC
Last seen:
2025-10-30T00:54:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/b1c1fb8b6029ebaa09ed7eadc12868d1cc5b01b4d3ff6b83fe8592edd7dbb249/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/85f8cf39-adc9-4c1e-8e60-82fafaf008e6
Behavior Graph:
Download SVG
%3 guuid=050234bb-1a00-0000-7884-2bb5cf090000 pid=2511 /usr/bin/sudo guuid=ca09a1bd-1a00-0000-7884-2bb5d5090000 pid=2517 /tmp/sample.bin guuid=050234bb-1a00-0000-7884-2bb5cf090000 pid=2511->guuid=ca09a1bd-1a00-0000-7884-2bb5d5090000 pid=2517 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/c483441c-8af6-430a-9c83-87523d382b25
Result
Threat name:
Xmrig
Create hunting rule
Detection:
malicious
Classification:
troj.mine
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1804910
Signature
Antivirus / Scanner detection for submitted sample
Executes the "crontab" command typically for achieving persistence
Executes the "iptables" command to insert, remove and/or manipulate rules
Found strings related to Crypto-Mining
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample tries to persist itself using cron
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1804910 Sample: arm7.elf Startdate: 30/10/2025 Architecture: LINUX Score: 88 43 Malicious sample detected (through community Yara rule) 2->43 45 Antivirus / Scanner detection for submitted sample 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 Yara detected Xmrig cryptocurrency miner 2->49 8 arm7.elf 2->8         started        process3 signatures4 57 Found strings related to Crypto-Mining 8->57 11 arm7.elf 8->11         started        process5 process6 13 arm7.elf sh 11->13         started        15 arm7.elf sh 11->15         started        17 arm7.elf sh 11->17         started        19 arm7.elf 11->19         started        process7 21 sh crontab 13->21         started        25 sh crontab 13->25         started        27 sh 13->27         started        29 sh iptables 15->29         started        31 sh iptables 15->31         started        39 2 other processes 15->39 33 sh iptables 17->33         started        35 sh iptables 17->35         started        37 arm7.elf 19->37         started        file8 41 /var/spool/cron/crontabs/tmp.smygK5, ASCII 21->41 dropped 51 Sample tries to persist itself using cron 21->51 53 Executes the "crontab" command typically for achieving persistence 21->53 55 Executes the "iptables" command to insert, remove and/or manipulate rules 33->55 signatures9
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b1c1fb8b6029ebaa09ed7eadc12868d1cc5b01b4d3ff6b83fe8592edd7dbb249
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b1c1fb8b6029ebaa09ed7eadc12868d1cc5b01b4d3ff6b83fe8592edd7dbb249/
Threat name:
Linux.Trojan.Miner
Create hunting rule
Status:
Malicious
First seen:
2025-10-29 16:47:57 UTC
File Type:
ELF32 Little (Exe)
AV detection:
13 of 24 (54.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wha7xc3afhv2ucpnp2w4ckdi2hgfwanu2p7wxa76qwjo3v63wjeq._file
Result
Malware family:
xmrig
Create hunting rule
Score:
  10/10
Tags:
family:xmrig antivm discovery execution miner persistence privilege_escalation
Link:
https://tria.ge/reports/251029-s57s5s1mcx/
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
Changes its process name
Checks CPU configuration
Reads CPU attributes
Creates/modifies Cron job
Enumerates running processes
Reads network interface configuration
Creates Raw socket
Contacts a large (1051402) amount of remote hosts
Creates a large amount of network flows
Verdict:
Unknown
Tags:
cryptojacking xmrig
YARA:
MAL_ELF_XMRig_Jul_09
Link:
https://app.threat.zone/submission/976e8be9-2cd7-4062-bce2-ec1861058c9f
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:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:enterpriseunix2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise UNIX
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 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

elf 229496b55d0668a40fe3d969ba4e942dc2c2fd7452b3d6f79c6beb0db631dc12

CoinMiner

elf b1c1fb8b6029ebaa09ed7eadc12868d1cc5b01b4d3ff6b83fe8592edd7dbb249

(this sample)

  
Dropped by
SHA256 229496b55d0668a40fe3d969ba4e942dc2c2fd7452b3d6f79c6beb0db631dc12
  
URLhaus
https://urlhaus.abuse.ch/url/3568522/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3614058/

Comments