MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a5f837cd3b474a3ba5c81f4e9ae86888938b9dd6b9cf802e3e019d30de1df49d. 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: 9


Intelligence 9 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a5f837cd3b474a3ba5c81f4e9ae86888938b9dd6b9cf802e3e019d30de1df49d
SHA3-384 hash: 9a7a7382af5948be053fce8972744cf3d419ea9841a71884370116c7acbae39d807442231c38eeace02933fb3dbf8c82
SHA1 hash: 74a8121ac7510b76ed43131aa671bd89642267f3
MD5 hash: 14d0a9c28bc10e58c7565ab1be4c185b
humanhash: oxygen-pennsylvania-minnesota-east
File name:arm7
Download: download sample
Signature CoinMiner
Create hunting rule
File size:1'275'600 bytes
First seen:2025-07-27 18:50:53 UTC
Last seen:Never
File type: elf
MIME type:application/x-sharedlib
ssdeep 24576:gFs+Kfryr5mqUblyHwam2PjF/Wuyi16apLMg3j691+j:bhzyr8lYwl2LFiM6aSc01+j
TLSH T150453330381FD76BD8857C27E0C98ED1FEEA4DA1FF8263B0214A4FD8060E6B15567968
telfhash t1dc900290454017cc1080b5c2d18111d14c1140b651501674585162daa6239043651c15
Magika elf
Reporter abuse_ch
Tags:CoinMiner elf

Intelligence

File Origin
# of uploads :
1
# of downloads :
34
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Receives data from a server
Changes the time when the file was created, accessed, or modified
Kills processes
Collects information on the RAM
Collects information on the CPU
Runs as daemon
Creating a file
Changes access rights for a written file
Sends data to a server
Connection attempt
Launching a process
Creates or modifies files in /cron to set up autorun
Substitutes an application name
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
packed upx
Link:
https://www.filescan.io/uploads/68867533c477a9ec31ea67e3/reports/8571033b-92f7-4dbd-bfcd-31b3e02808bb/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
UPX
Botnet:
unknown
Number of open files:
1
Number of processes launched:
0
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/a5f837cd3b474a3ba5c81f4e9ae86888938b9dd6b9cf802e3e019d30de1df49d
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/8a1b23d8-13fe-4cd1-9a3c-ba0314ecd148
Behavior Graph:
Download SVG
%3 guuid=444f2b08-1900-0000-20fa-80625c140000 pid=5212 /usr/bin/sudo guuid=b123d109-1900-0000-20fa-80625d140000 pid=5213 /tmp/sample.bin guuid=444f2b08-1900-0000-20fa-80625c140000 pid=5212->guuid=b123d109-1900-0000-20fa-80625d140000 pid=5213 execve
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/7ac9b009-2a4e-4540-8245-78bd4b92c21f
Result
Threat name:
Xmrig
Create hunting rule
Detection:
malicious
Classification:
troj.evad.mine
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/1745151
Signature
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 is packed with UPX
Sample tries to persist itself using cron
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1745151 Sample: arm7.elf Startdate: 27/07/2025 Architecture: LINUX Score: 84 43 Malicious sample detected (through community Yara rule) 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 Yara detected Xmrig cryptocurrency miner 2->47 49 Sample is packed with UPX 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.9n4uhX, 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/a5f837cd3b474a3ba5c81f4e9ae86888938b9dd6b9cf802e3e019d30de1df49d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a5f837cd3b474a3ba5c81f4e9ae86888938b9dd6b9cf802e3e019d30de1df49d/
Verdict:
Malicious
Threat:
HEUR:RiskTool.Linux.BitCoinMiner
Link:
https://tip.neiki.dev/file/a5f837cd3b474a3ba5c81f4e9ae86888938b9dd6b9cf802e3e019d30de1df49d
Threat name:
Linux.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-07-27 18:51:28 UTC
File Type:
ELF32 Little (SO)
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ux4dptj3i5fdxjoid5hjv2dircjyxhowxhhyalr6agotbxq56soq._file
Result
Malware family:
xmrig
Create hunting rule
Score:
  10/10
Tags:
family:xmrig antivm discovery execution miner persistence privilege_escalation upx
Link:
https://tria.ge/reports/250727-xhnh7sdp8t/
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 (657272) amount of remote hosts
Creates a large amount of network flows
XMRig Miner payload
Xmrig family
xmrig
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/d7f83cfe-039f-4c0b-ac82-c39b7002e4bf
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/a5f837cd3b474a3ba5c81f4e9ae86888938b9dd6b9cf802e3e019d30de1df49d

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:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:unixredflags3
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags
Rule name:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

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

Web download

CoinMiner

elf a5f837cd3b474a3ba5c81f4e9ae86888938b9dd6b9cf802e3e019d30de1df49d

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3568522/
  
Delivery method
Distributed via web download

Comments