MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f72caa4b201574fd88cc50cb3136d793f582045e01d0c20613a40a9864e9b2bf. 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


Threat unknown


Vendor detections: 8


Intelligence 8 IOCs YARA 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f72caa4b201574fd88cc50cb3136d793f582045e01d0c20613a40a9864e9b2bf
SHA3-384 hash: cd943e6f6a55bb8d190ba74c9d26801349e570ff8f3d35888e0e188b3ac5732976252427486b6dbf82a62c050e65c3f0
SHA1 hash: 99f136c11ecb5d2e1446638812934a522959c1df
MD5 hash: 7adaba707ef0ebe39e52d1ba9929d6a7
humanhash: massachusetts-nineteen-east-orange
File name:arm
Download: download sample
File size:5'636'280 bytes
First seen:2026-06-06 00:10:35 UTC
Last seen:2026-06-06 08:56:13 UTC
File type: elf
MIME type:application/x-executable
ssdeep 49152:1h2SDYacDtOkHtYS9pLzppot0AIaRpa2rV21p5E1:1oSDYaUckHiS9pLz7ottr81/E1
TLSH T190466D55BC1E75A2D5C976752F6252D43239BC086F82C3233A24FB7CA9F63588F23261
gimphash e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
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:elf

Intelligence

File Origin
# of uploads :
3
# of downloads :
47
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Changes access rights for a written file
Locks files
Creating a file
Sends data to a server
Connection attempt
Receives data from a server
Sets a written file as executable
Changes the time when the file was created, accessed, or modified
Launching a process
Creating a process from a recently created file
Creates or modifies files in /cron to set up autorun
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
base64 crypto expand golang lolbin reconnaissance
Link:
https://www.filescan.io/uploads/6a23658346e44aecc0d21a21/reports/1d5af0dd-da02-4e79-a93f-4119879ee825/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
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/f72caa4b201574fd88cc50cb3136d793f582045e01d0c20613a40a9864e9b2bf
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2026-06-05T21:46:00Z UTC
Last seen:
2026-06-06T12:59:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/f72caa4b201574fd88cc50cb3136d793f582045e01d0c20613a40a9864e9b2bf/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/87f63d8f-a948-41e0-b4a8-8c714b6f6329
Behavior Graph:
Download SVG
%3 guuid=dfbb4464-1b00-0000-62c8-1bc7140b0000 pid=2836 /usr/bin/sudo guuid=685b7766-1b00-0000-62c8-1bc71b0b0000 pid=2843 /tmp/sample.bin guuid=dfbb4464-1b00-0000-62c8-1bc7140b0000 pid=2836->guuid=685b7766-1b00-0000-62c8-1bc71b0b0000 pid=2843 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/cdec5db9-05db-4fa3-8421-e4fd856f423f
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
52 / 100
Link:
https://www.joesandbox.com/analysis/1923919
Signature
Drops invisible ELF files
Executes the "crontab" command typically for achieving persistence
Sample tries to persist itself using cron
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1923919 Sample: arm.elf Startdate: 06/06/2026 Architecture: LINUX Score: 52 31 45.13.186.32, 41792, 9111 LEASEWEB-NL-AMS-01NetherlandsNL Germany 2->31 8 arm.elf 2->8         started        process3 file4 29 /tmp/.nether-agent, ELF 8->29 dropped 39 Drops invisible ELF files 8->39 12 arm.elf bash 8->12         started        14 arm.elf .nether-agent 8->14         started        signatures5 process6 process7 16 bash crontab 12->16         started        20 bash 12->20         started        file8 27 /var/spool/cron/crontabs/tmp.aCeYt3, ASCII 16->27 dropped 33 Sample tries to persist itself using cron 16->33 35 Executes the "crontab" command typically for achieving persistence 16->35 22 bash crontab 20->22         started        25 bash grep 20->25         started        signatures9 process10 signatures11 37 Executes the "crontab" command typically for achieving persistence 22->37
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/f72caa4b201574fd88cc50cb3136d793f582045e01d0c20613a40a9864e9b2bf
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f72caa4b201574fd88cc50cb3136d793f582045e01d0c20613a40a9864e9b2bf/
Threat name:
Linux.Trojan.Multiverze
Create hunting rule
Status:
Malicious
First seen:
2026-06-06 00:11:34 UTC
File Type:
ELF64 Little (Exe)
AV detection:
9 of 24 (37.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=64wkuszacv2p3cgmkdftcnwxsp2yebc6ahimebqtuqfjqzhjwk7q._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Link:
https://tria.ge/reports/260606-agehksgy5r/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.30
Link:
https://yomi.yoroi.company/submissions/f72caa4b201574fd88cc50cb3136d793f582045e01d0c20613a40a9864e9b2bf

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: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:DetectGoMethodSignatures
Create hunting rule
Author:Wyatt Tauber
Description:Detects Go method signatures in unpacked Go binaries
Rule name:Detect_Go_GOMAXPROCS
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects Go binaries by the presence of runtime.GOMAXPROCS in the runtime metadata
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:F01_s1ckrule
Create hunting rule
Author:s1ckb017
Rule name:GoBinTest
Create hunting rule
Rule name:golang
Create hunting rule
Rule name:golang_binary_string
Create hunting rule
Description:Golang strings present
Rule name:Golang_Find_CSC846
Create hunting rule
Author:Ashar Siddiqui
Description:Find Go Signatuers
Rule name:Golang_Find_CSC846_Simple
Create hunting rule
Author:Ashar Siddiqui
Description:Find Go Signatuers
Rule name:identity_golang
Create hunting rule
Author:Eric Yocam
Description:find Golang malware
Rule name:ProgramLanguage_Golang
Create hunting rule
Author:albertzsigovits
Description:Application written in Golang programming language
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
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 f72caa4b201574fd88cc50cb3136d793f582045e01d0c20613a40a9864e9b2bf

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3859463/
  
Delivery method
Distributed via web download

Comments