MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91b158e1636cb2f61eeb64aa65b945a62839d782fe7300d4ab292b9d858daf03. 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: 91b158e1636cb2f61eeb64aa65b945a62839d782fe7300d4ab292b9d858daf03
SHA3-384 hash: ff338836096515496692f712b0182a44a78e7e6fce93853a279ecba2ca412799c67012accb5fba503f140381ac5bfcb5
SHA1 hash: 8661c7ac67efec130e6c7b6018091a3a87d100c9
MD5 hash: 77dc1674777c8ea53da0bc5b1b8318d9
humanhash: spring-alpha-butter-mockingbird
File name:s390x
Download: download sample
File size:502'120 bytes
First seen:2025-07-03 04:18:44 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 12288:NbX5mTA3bZNKiG01B7crv+SF7GW5a65jx:tX5m83bZNKi3B7AZXa
TLSH T143B401CE9520D295C4B02D33C57BA2F282AB6D3609596E1CDDD8FF6B2CF67450638B12
Magika elf
Reporter abuse_ch
Tags:elf

Intelligence

File Origin
# of uploads :
1
# of downloads :
13
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.32056.LX.BOT.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.32058.LX.BOT.UNOFFICIAL
Create hunting rule

Verdict:
Clean
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=686604be900df8e7f865ee9elinux22vpnfull_triage
Tags:
n/a
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
exploit gcc lolbin remote
Link:
https://www.filescan.io/uploads/686604bbeb28035066431776/reports/17b0e0ec-d8b1-46b1-9b04-94248c749a22/overview
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/e368c44b-82f4-4326-a891-cac235d2bdfe
Behavior Graph:
Download SVG
%3 guuid=6d09f445-1900-0000-546d-0236ef130000 pid=5103 /usr/bin/sudo guuid=03504c48-1900-0000-546d-0236f7130000 pid=5111 /tmp/sample.bin guuid=6d09f445-1900-0000-546d-0236ef130000 pid=5103->guuid=03504c48-1900-0000-546d-0236f7130000 pid=5111 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/803aa8a8-770c-4c8d-984f-d51efa6641d3
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.spyw
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1727742
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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1727742 Sample: s390x.elf Startdate: 03/07/2025 Architecture: LINUX Score: 68 42 31.200.249.162, 31820, 59884 NETRACK-ASRU Russian Federation 2->42 44 31.200.249.178, 31857, 56192 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.ENnimm, 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
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/91b158e1636cb2f61eeb64aa65b945a62839d782fe7300d4ab292b9d858daf03
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/91b158e1636cb2f61eeb64aa65b945a62839d782fe7300d4ab292b9d858daf03/
Verdict:
Malicious
Threat:
Linux.Trojan.Generic
Link:
https://tip.neiki.dev/file/91b158e1636cb2f61eeb64aa65b945a62839d782fe7300d4ab292b9d858daf03
Threat name:
Linux.Trojan.Multiverze
Create hunting rule
Status:
Malicious
First seen:
2025-07-03 04:19:13 UTC
File Type:
ELF64 Big (Exe)
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=sgyvryldnszpmhxlmsvglokfuyudtv4c7zzqbvflfevz3bmnv4bq._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Link:
https://tria.ge/reports/250703-exk3hsttgy/
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/ed92d106-e508-4899-a229-19c2aeef6966
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/91b158e1636cb2f61eeb64aa65b945a62839d782fe7300d4ab292b9d858daf03

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 91b158e1636cb2f61eeb64aa65b945a62839d782fe7300d4ab292b9d858daf03

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3558160/
  
Delivery method
Distributed via web download

Comments