MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 98eefc06d839b6b980eb21dfb44311d914bbb404ff841d1ff51d6b121ca4d43a. 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: 98eefc06d839b6b980eb21dfb44311d914bbb404ff841d1ff51d6b121ca4d43a
SHA3-384 hash: 6e7b3c0f78142e8504b2202e70b4d19d567bb68bf8c3c08abd6009a0d545c796e1164a70ffc7bbcde17e3073b1025d4d
SHA1 hash: 244fa9e53f592fbfc1d7fd2f1d4839e359b372f6
MD5 hash: 2b6084d5c46ea1570548dfbcc41243e8
humanhash: illinois-oxygen-iowa-sink
File name:s390x
Download: download sample
File size:502'120 bytes
First seen:2025-07-05 02:53:34 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 12288:NbX5mTA3bZNKiG01B7crv+SF7GW5a65jx:tX5m83bZNKi3B7AZXa
TLSH T144B401CE9520D295C4B02D33C57BA2F282AB6D3609596E1CDDD8FF6B2CF67450638B12
Magika elf
Reporter abuse_ch
Tags:elf

Intelligence


File Origin
# of uploads :
1
# of downloads :
9
Origin country :
DE DE
Vendor Threat Intelligence
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
exploit gcc
Status:
terminated
Behavior Graph:
%3 guuid=121c6644-1900-0000-6f5e-d31d94120000 pid=4756 /usr/bin/sudo guuid=495de545-1900-0000-6f5e-d31d9d120000 pid=4765 /tmp/sample.bin guuid=121c6644-1900-0000-6f5e-d31d94120000 pid=4756->guuid=495de545-1900-0000-6f5e-d31d9d120000 pid=4765 execve
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.spyw
Score:
68 / 100
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
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1729080 Sample: s390x.elf Startdate: 05/07/2025 Architecture: LINUX Score: 68 42 31.200.249.146, 31960, 49336 NETRACK-ASRU Russian Federation 2->42 44 31.200.249.178, 31965, 49510 NETRACK-ASRU Russian Federation 2->44 46 102 other IPs or domains 2->46 54 Multi AV Scanner detection for submitted file 2->54 56 Connects to many ports of the same IP (likely port scanning) 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.ZRcRK3, 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:
2025-07-05 02:54:23 UTC
File Type:
ELF64 Big (Exe)
AV detection:
13 of 24 (54.17%)
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 98eefc06d839b6b980eb21dfb44311d914bbb404ff841d1ff51d6b121ca4d43a

(this sample)

  
Delivery method
Distributed via web download

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