MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b72b3e87cc402b28189d9b4f558125a63fdcb1d7bb35ae06ceaf3c03cec18fa8. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b72b3e87cc402b28189d9b4f558125a63fdcb1d7bb35ae06ceaf3c03cec18fa8
SHA3-384 hash: 20124c445e67e1b81436934e938caaa04bb47ad489a02c0366362a940635f617f03ee2c42e225be7d85b57cf54c58e68
SHA1 hash: a17218bfa5f5ac6d9d07103d5128643b2f5da9f0
MD5 hash: 86991e54f437c035067f00b5b9e9be99
humanhash: oxygen-apart-oklahoma-lamp
File name:amd64
Download: download sample
File size:482'032 bytes
First seen:2025-06-18 05:34:42 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 12288:iD6LPBCvMk0O9na1M80cLt9i5aIaTtpc4W:2+QGO9naz0Szi5anTtR
TLSH T1A4A41212E290D8FEC4DAC070469FD27BFD767C544234BC6B6298F7322B3AE601B16A55
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 :
77
Origin country :
DE DE
Vendor Threat Intelligence
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creates directories
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/d11a3322-8c99-475f-b5d7-c5484194fafd
Behavior Graph:
Download SVG
%3 guuid=f85a092d-1e00-0000-8128-962035140000 pid=5173 /usr/bin/sudo guuid=dfc7cc2f-1e00-0000-8128-962036140000 pid=5174 /tmp/sample.bin guuid=f85a092d-1e00-0000-8128-962035140000 pid=5173->guuid=dfc7cc2f-1e00-0000-8128-962036140000 pid=5174 execve guuid=010bf62f-1e00-0000-8128-962037140000 pid=5175 /usr/bin/dash guuid=dfc7cc2f-1e00-0000-8128-962036140000 pid=5174->guuid=010bf62f-1e00-0000-8128-962037140000 pid=5175 execve guuid=41837530-1e00-0000-8128-962038140000 pid=5176 /usr/bin/dash guuid=dfc7cc2f-1e00-0000-8128-962036140000 pid=5174->guuid=41837530-1e00-0000-8128-962038140000 pid=5176 execve guuid=1b80e930-1e00-0000-8128-96203b140000 pid=5179 /tmp/sample.bin mprotect-exec zombie guuid=dfc7cc2f-1e00-0000-8128-962036140000 pid=5174->guuid=1b80e930-1e00-0000-8128-96203b140000 pid=5179 clone guuid=c840a830-1e00-0000-8128-962039140000 pid=5177 /usr/bin/dash guuid=41837530-1e00-0000-8128-962038140000 pid=5176->guuid=c840a830-1e00-0000-8128-962039140000 pid=5177 clone guuid=c5a6b230-1e00-0000-8128-96203a140000 pid=5178 /usr/bin/dash guuid=41837530-1e00-0000-8128-962038140000 pid=5176->guuid=c5a6b230-1e00-0000-8128-96203a140000 pid=5178 clone guuid=82efd639-1e00-0000-8128-96203c140000 pid=5180 /tmp/sample.bin zombie guuid=1b80e930-1e00-0000-8128-96203b140000 pid=5179->guuid=82efd639-1e00-0000-8128-96203c140000 pid=5180 clone guuid=eb62fe39-1e00-0000-8128-96203d140000 pid=5181 /tmp/sample.bin guuid=82efd639-1e00-0000-8128-96203c140000 pid=5180->guuid=eb62fe39-1e00-0000-8128-96203d140000 pid=5181 clone guuid=fd010f3a-1e00-0000-8128-96203e140000 pid=5182 /tmp/sample.bin net send-data guuid=eb62fe39-1e00-0000-8128-96203d140000 pid=5181->guuid=fd010f3a-1e00-0000-8128-96203e140000 pid=5182 clone d316b2ae-0a7e-5b43-8de6-745900c90c54 127.0.0.1:65535 guuid=fd010f3a-1e00-0000-8128-96203e140000 pid=5182->d316b2ae-0a7e-5b43-8de6-745900c90c54 con 4f6baed0-9587-596c-82b3-fd721afe4cc1 10.0.2.3:53 guuid=fd010f3a-1e00-0000-8128-96203e140000 pid=5182->4f6baed0-9587-596c-82b3-fd721afe4cc1 send: 796B
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/a20a6280-ce6f-4c19-be5d-2e63b504ae60
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.spyw
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1717024
Signature
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1717024 Sample: amd64.elf Startdate: 18/06/2025 Architecture: LINUX Score: 64 38 5.18.191.119, 6327, 6881 ZTELECOM-ASRU Russian Federation 2->38 40 117.20.68.29, 43233 WIDEBAND-AS-APAussieBroadbandAU Australia 2->40 42 102 other IPs or domains 2->42 44 Multi AV Scanner detection for submitted file 2->44 10 amd64.elf 2->10         started        signatures3 process4 process5 12 amd64.elf sh 10->12         started        14 amd64.elf 10->14         started        17 amd64.elf sh 10->17         started        signatures6 19 sh crontab 12->19         started        23 sh 12->23         started        52 Opens /sys/class/net/* files useful for querying network interface information 14->52 54 Sample reads /proc/mounts (often used for finding a writable filesystem) 14->54 25 amd64.elf 14->25         started        27 sh crontab 17->27         started        process7 file8 36 /var/spool/cron/crontabs/tmp.2BIgwr, ASCII 19->36 dropped 46 Sample tries to persist itself using cron 19->46 48 Executes the "crontab" command typically for achieving persistence 19->48 29 sh crontab 23->29         started        32 amd64.elf 25->32         started        signatures9 process10 signatures11 50 Executes the "crontab" command typically for achieving persistence 29->50 34 amd64.elf 32->34         started        process12
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b72b3e87cc402b28189d9b4f558125a63fdcb1d7bb35ae06ceaf3c03cec18fa8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b72b3e87cc402b28189d9b4f558125a63fdcb1d7bb35ae06ceaf3c03cec18fa8/
Threat name:
Linux.Trojan.Multiverze
Create hunting rule
Status:
Malicious
First seen:
2025-06-18 05:44:20 UTC
File Type:
ELF64 Little (Exe)
AV detection:
17 of 37 (45.95%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=w4vt5b6miavsqge5tnhvlajfuy75zmoxxm224bwov46ahtwbr6ua._file
Result
Malware family:
n/a
Score:
  6/10
Tags:
antivm defense_evasion discovery execution linux persistence privilege_escalation
Link:
https://tria.ge/reports/250618-gelmfavnv7/
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/6c789a6d-9a6c-410c-b963-cf2a7b456fe2
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/b72b3e87cc402b28189d9b4f558125a63fdcb1d7bb35ae06ceaf3c03cec18fa8

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 b72b3e87cc402b28189d9b4f558125a63fdcb1d7bb35ae06ceaf3c03cec18fa8

(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