MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bcf5e1819835ec2851ba725fccfad5ae216f835d72a68d697a6bd9680b7e40da. 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: 9


Intelligence 9 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bcf5e1819835ec2851ba725fccfad5ae216f835d72a68d697a6bd9680b7e40da
SHA3-384 hash: ae2ecd6b29275e6d0a3434415be5110105f6753d8c59ea403e3b4aaba97fa3e23d982e6609a63916f75883486b5f2d0b
SHA1 hash: ee2de03f64fda53587c59209d2c3c5f59dc697e4
MD5 hash: afe75618ccc60d746881729ab5cfb0c5
humanhash: equal-minnesota-nuts-freddie
File name:amd64
Download: download sample
File size:482'032 bytes
First seen:2025-05-27 00:16:25 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 12288:iD6LPBCvMk0O9na1M80cLt9i5aIaTtpc4W:2+QGO9naz0Szi5anTtR
TLSH T16FA41212E290D8FEC4DAC070469FD27BFD767C544234BC6B6298F7322B3AE601B16A55
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 :
1
# of downloads :
116
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Siggen.9080.20734.4183.UNOFFICIAL
Create hunting rule

Verdict:
Clean
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6835064e668438e362e73d63linux22vpnfull_triage
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creates directories
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
exploit gcc lolbin remote
Link:
https://www.filescan.io/uploads/6835048ffd02ed5e0589126a/reports/bcfc7ada-703a-4b07-a180-8ae39354ecec/overview
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/e5ce0f84-b7f1-481a-a53e-86bac9a6452e
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.spyw
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1699472
Signature
Connects to many ports of the same IP (likely port scanning)
Executes the "crontab" command typically for achieving persistence
Multi AV Scanner detection for submitted file
Opens /sys/class/net/* files useful for querying network interface information
Sample reads /proc/mounts (often used for finding a writable filesystem)
Sample tries to persist itself using cron
Uses known network protocols on non-standard ports
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1699472 Sample: amd64.elf Startdate: 27/05/2025 Architecture: LINUX Score: 72 44 31.200.249.130, 31842, 38982 NETRACK-ASRU Russian Federation 2->44 46 31.200.249.162, 31856, 35494 NETRACK-ASRU Russian Federation 2->46 48 102 other IPs or domains 2->48 50 Multi AV Scanner detection for submitted file 2->50 52 Connects to many ports of the same IP (likely port scanning) 2->52 54 Uses known network protocols on non-standard ports 2->54 10 amd64.elf 2->10         started        12 dash rm 2->12         started        14 dash tr 2->14         started        16 8 other processes 2->16 signatures3 process4 process5 18 amd64.elf sh 10->18         started        20 amd64.elf 10->20         started        23 amd64.elf sh 10->23         started        signatures6 25 sh crontab 18->25         started        29 sh 18->29         started        58 Opens /sys/class/net/* files useful for querying network interface information 20->58 60 Sample reads /proc/mounts (often used for finding a writable filesystem) 20->60 31 amd64.elf 20->31         started        33 sh crontab 23->33         started        process7 file8 42 /var/spool/cron/crontabs/tmp.44VHlE, ASCII 25->42 dropped 62 Sample tries to persist itself using cron 25->62 64 Executes the "crontab" command typically for achieving persistence 25->64 35 sh crontab 29->35         started        38 amd64.elf 31->38         started        signatures9 process10 signatures11 56 Executes the "crontab" command typically for achieving persistence 35->56 40 amd64.elf 38->40         started        process12
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/bcf5e1819835ec2851ba725fccfad5ae216f835d72a68d697a6bd9680b7e40da
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bcf5e1819835ec2851ba725fccfad5ae216f835d72a68d697a6bd9680b7e40da/
Threat name:
Linux.Trojan.Multiverze
Create hunting rule
Status:
Malicious
First seen:
2025-05-27 00:17:20 UTC
File Type:
ELF64 Little (Exe)
AV detection:
17 of 38 (44.74%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xt26damygxwcqun2ojp4z6wvvyqw7a25okti22l2npmwqc36idna._file
Result
Malware family:
n/a
Score:
  6/10
Tags:
antivm defense_evasion discovery execution linux persistence privilege_escalation
Link:
https://tria.ge/reports/250527-ak7crsbr2y/
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
Writes file to tmp directory
Checks CPU configuration
Checks hardware identifiers (DMI)
Creates/modifies Cron job
Enumerates running processes
Reads MAC address of network interface
Reads hardware information
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/7a9f91e2-9b77-477d-b756-9f1dd2d858c1
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/bcf5e1819835ec2851ba725fccfad5ae216f835d72a68d697a6bd9680b7e40da

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: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:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
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

File information

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

Web download

elf bcf5e1819835ec2851ba725fccfad5ae216f835d72a68d697a6bd9680b7e40da

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3550686/
  
Delivery method
Distributed via web download

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments