MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 71998e226f69ebe61b7fbf198c250ea7b2d2e327b9b98a6c00594c91a9d44705. 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: 71998e226f69ebe61b7fbf198c250ea7b2d2e327b9b98a6c00594c91a9d44705
SHA3-384 hash: 62886139959e4b01ea918e6767fe94b4c25d33953b91444e258b58e3ca1eac854a716864ae4b1979a67cd69f851745b2
SHA1 hash: 4335bdb286ca0e3ba8a6911e2e7e56bf03612821
MD5 hash: cf58c818e2a39d0ae843b007d0620b78
humanhash: freddie-seven-fanta-robin
File name:s390x
Download: download sample
File size:502'120 bytes
First seen:2025-07-12 05:54:33 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 12288:NbX5mTA3bZNKiG01B7crv+SF7GW5a65jx:tX5m83bZNKi3B7AZXa
TLSH T11BB401CE9520D295C4B02D33C57BA2F282AB6D3609596E1CDDD8FF6B2CF67450638B12
Magika elf
Reporter abuse_ch
Tags:elf

Intelligence


File Origin
# of uploads :
1
# of downloads :
13
Origin country :
DE DE
Vendor Threat Intelligence
Status:
terminated
Behavior Graph:
%3 guuid=392b74e7-1900-0000-923d-64a83d0a0000 pid=2621 /usr/bin/sudo guuid=f08e65ea-1900-0000-923d-64a8450a0000 pid=2629 /tmp/sample.bin guuid=392b74e7-1900-0000-923d-64a83d0a0000 pid=2621->guuid=f08e65ea-1900-0000-923d-64a8450a0000 pid=2629 execve
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.spyw
Score:
64 / 100
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:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1734522 Sample: s390x.elf Startdate: 12/07/2025 Architecture: LINUX Score: 64 38 212.232.50.31, 2888, 6881 YARNET-ASRU Russian Federation 2->38 40 191.98.223.119, 49481 WIRNETSRLAR Argentina 2->40 42 102 other IPs or domains 2->42 44 Multi AV Scanner detection for submitted file 2->44 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        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 configuration 14->25         started        27 sh crontab 17->27         started        process7 file8 36 /var/spool/cron/crontabs/tmp.vhNNOn, 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 configuration 25->32         started        signatures9 process10 signatures11 50 Executes the "crontab" command typically for achieving persistence 29->50 34 configuration 32->34         started        process12
Threat name:
Linux.Trojan.Generic
Status:
Suspicious
First seen:
2025-07-12 05:55:33 UTC
File Type:
ELF64 Big (Exe)
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
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 71998e226f69ebe61b7fbf198c250ea7b2d2e327b9b98a6c00594c91a9d44705

(this sample)

  
Delivery method
Distributed via web download

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