MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 028239a1e5ef715389300eb7b3593421ca3175c5da0a200380efc3e26fd0b4bc. 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: 6


Intelligence 6 IOCs YARA 3 File information Comments

SHA256 hash: 028239a1e5ef715389300eb7b3593421ca3175c5da0a200380efc3e26fd0b4bc
SHA3-384 hash: e1c0bfa312bee3e6912c446c41fa488ad3f63dacfcd5818a3be7ac1a039f46dba1c1c589b005b92fb1b62f898c5d7fc6
SHA1 hash: b3fbbc51894d597fb43b026f9f0aaddea9848925
MD5 hash: fcce97be2a42e6ff8a5576cdbbc493fd
humanhash: december-zulu-red-wolfram
File name:s390x
Download: download sample
File size:502'120 bytes
First seen:2025-06-05 09:24:04 UTC
Last seen:2025-06-05 12:42:56 UTC
File type: elf
MIME type:application/x-executable
ssdeep 12288:NbX5mTA3bZNKiG01B7crv+SF7GW5a65jx:tX5m83bZNKi3B7AZXa
TLSH T1ACB401CE9520D295C4B02D33C57BA2F282AB6D3609596E1CDDD8FF6B2CF67450638B12
Magika elf
Reporter abuse_ch
Tags:elf

Intelligence


File Origin
# of uploads :
2
# of downloads :
81
Origin country :
DE DE
Vendor Threat Intelligence
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
exploit gcc lolbin remote
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.spyw
Score:
64 / 100
Signature
Connects to many ports of the same IP (likely port scanning)
Executes the "crontab" command typically for achieving persistence
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:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1707037 Sample: s390x.elf Startdate: 05/06/2025 Architecture: LINUX Score: 64 42 47.62.150.40, 50789 VODAFONE_ESES United States 2->42 44 72.78.200.125, 51413, 6881 UUNETUS United States 2->44 46 101 other IPs or domains 2->46 54 Connects to many ports of the same IP (likely port scanning) 2->54 56 Uses known network protocols on non-standard ports 2->56 10 s390x.elf configuration 2->10         started        12 dash rm 2->12         started        14 dash rm 2->14         started        signatures3 process4 process5 16 s390x.elf sh 10->16         started        18 configuration 10->18         started        21 s390x.elf sh 10->21         started        signatures6 23 sh crontab 16->23         started        27 sh 16->27         started        50 Opens /sys/class/net/* files useful for querying network interface information 18->50 52 Sample reads /proc/mounts (often used for finding a writable filesystem) 18->52 29 configuration 18->29         started        31 sh crontab 21->31         started        process7 file8 40 /var/spool/cron/crontabs/tmp.oVeTV3, ASCII 23->40 dropped 58 Sample tries to persist itself using cron 23->58 60 Executes the "crontab" command typically for achieving persistence 23->60 33 sh crontab 27->33         started        36 configuration 29->36         started        signatures9 process10 signatures11 48 Executes the "crontab" command typically for achieving persistence 33->48 38 configuration 36->38         started        process12
Threat name:
Linux.Trojan.Generic
Status:
Suspicious
First seen:
2025-06-05 09:25:29 UTC
File Type:
ELF64 Big (Exe)
AV detection:
13 of 38 (34.21%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Verdict:
Informative
Tags:
n/a
YARA:
n/a
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:unixredflags3
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 028239a1e5ef715389300eb7b3593421ca3175c5da0a200380efc3e26fd0b4bc

(this sample)

  
Delivery method
Distributed via web download

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