MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 87cdb8709611f35e3aef0c8ee5fcd92455b81187bd1aa2be2463d246fbbe9263. 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: 7


Intelligence 7 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 87cdb8709611f35e3aef0c8ee5fcd92455b81187bd1aa2be2463d246fbbe9263
SHA3-384 hash: 99bda2875872a0d6c42fee66642a1ccd88069a6651e0f6878d48c49167015320d27e1763723b619dd89313a8ad2d12bd
SHA1 hash: 63a56fe48613b51300072928937618df68f0da57
MD5 hash: bc7f510503ab3e86baefec719731e3a7
humanhash: oscar-princess-saturn-island
File name:s390x
Download: download sample
File size:502'120 bytes
First seen:2025-06-06 05:42:31 UTC
Last seen:2025-06-06 19:01:10 UTC
File type: elf
MIME type:application/x-executable
ssdeep 12288:NbX5mTA3bZNKiG01B7crv+SF7GW5a65jx:tX5m83bZNKi3B7AZXa
TLSH T1BEB401CE9520D295C4B02D33C57BA2F282AB6D3609596E1CDDD8FF6B2CF67450638B12
Magika elf
Reporter abuse_ch
Tags:elf

Intelligence

File Origin
# of uploads :
2
# of downloads :
68
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.ELF.Dropper-AH.216.20482.UNOFFICIAL
Create hunting rule

Verdict:
Clean
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=684280b807b5e8c1cfe51260linux22vpnfull_triage
Tags:
n/a
Result
Verdict:
MALICIOUS
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/a56e5bdc-a326-47a4-bb3a-75e58fd5d0ae
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.spyw
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1707888
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
Uses known network protocols on non-standard ports
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1707888 Sample: s390x.elf Startdate: 06/06/2025 Architecture: LINUX Score: 68 38 176.111.185.192, 49559, 6881 VOLIA-ASUA Ukraine 2->38 40 5.249.57.57, 6881 VODAFONE-PTVodafonePortugalPT Portugal 2->40 42 102 other IPs or domains 2->42 44 Multi AV Scanner detection for submitted file 2->44 46 Uses known network protocols on non-standard ports 2->46 10 s390x.elf configuration 2->10         started        signatures3 process4 process5 12 s390x.elf sh 10->12         started        14 configuration 10->14         started        17 s390x.elf sh 10->17         started        signatures6 19 sh crontab 12->19         started        23 sh 12->23         started        54 Opens /sys/class/net/* files useful for querying network interface information 14->54 56 Sample reads /proc/mounts (often used for finding a writable filesystem) 14->56 25 configuration 14->25         started        27 sh crontab 17->27         started        process7 file8 36 /var/spool/cron/crontabs/tmp.MJegH5, ASCII 19->36 dropped 48 Sample tries to persist itself using cron 19->48 50 Executes the "crontab" command typically for achieving persistence 19->50 29 sh crontab 23->29         started        32 configuration 25->32         started        signatures9 process10 signatures11 52 Executes the "crontab" command typically for achieving persistence 29->52 34 configuration 32->34         started        process12
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/87cdb8709611f35e3aef0c8ee5fcd92455b81187bd1aa2be2463d246fbbe9263
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/87cdb8709611f35e3aef0c8ee5fcd92455b81187bd1aa2be2463d246fbbe9263/
Threat name:
Linux.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-06-06 05:43:29 UTC
File Type:
ELF64 Big (Exe)
AV detection:
11 of 24 (45.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=q7g3q4ewchzv4oxpbshol7gzerk3qemhxunkfprempjen656sjrq._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Link:
https://tria.ge/reports/250606-gepzvscl4x/
Verdict:
Informative
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/0e594048-a998-4591-9a90-562d17cf38f3
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/87cdb8709611f35e3aef0c8ee5fcd92455b81187bd1aa2be2463d246fbbe9263

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: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 87cdb8709611f35e3aef0c8ee5fcd92455b81187bd1aa2be2463d246fbbe9263

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3558219/
  
Delivery method
Distributed via web download

Comments