MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7b3ca2d7a91b8ced6188d55732ccb4e730b8539462e5801fce2f499fe2044688. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7b3ca2d7a91b8ced6188d55732ccb4e730b8539462e5801fce2f499fe2044688
SHA3-384 hash: 8149d0ad37ca7e9b8a61cec9d2a74d7b87a27fd4e54647985f7d8615c4ab712ed5102aaf4298b9dadbee8da089d105f6
SHA1 hash: 8fb8cbe8f544da8d92fa4cfafb420ac5b32a9858
MD5 hash: b26fa209b2f4bb49b9c2899bfd27ccb8
humanhash: triple-single-grey-carbon
File name:s390x
Download: download sample
File size:502'120 bytes
First seen:2025-06-21 17:42:55 UTC
Last seen:2025-06-22 01:05:20 UTC
File type: elf
MIME type:application/x-executable
ssdeep 12288:NbX5mTA3bZNKiG01B7crv+SF7GW5a65jx:tX5m83bZNKi3B7AZXa
TLSH T15DB401CE9520D295C4B02D33C57BA2F282AB6D3609596E1CDDD8FF6B2CF67450638B12
Magika elf
Reporter abuse_ch
Tags:elf

Intelligence

File Origin
# of uploads :
2
# of downloads :
77
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

SecuriteInfo.com.Linux.DownLoader.2374.23325.11774.UNOFFICIAL
Create hunting rule

Verdict:
Clean
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6856f055b06783b9ebd675f8linux22vpnfull_triage
Tags:
n/a
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/6620cfa3-aa64-4a4c-a9db-2cd810d212b9
Behavior Graph:
Download SVG
%3 guuid=17c57942-1800-0000-dc1c-5dc5850e0000 pid=3717 /usr/bin/sudo guuid=db6a2e44-1800-0000-dc1c-5dc5910e0000 pid=3729 /tmp/sample.bin guuid=17c57942-1800-0000-dc1c-5dc5850e0000 pid=3717->guuid=db6a2e44-1800-0000-dc1c-5dc5910e0000 pid=3729 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/f3ae41a1-7371-4e6e-8a6b-b69144258a56
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.spyw
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1719950
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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1719950 Sample: s390x.elf Startdate: 21/06/2025 Architecture: LINUX Score: 64 38 62.174.140.79, 6889 VODAFONE_ESES Spain 2->38 40 161.29.218.163, 6881, 6889 VOCUSGROUPNZVocusGroupNZ New Zealand 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.EFbqF9, 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
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/7b3ca2d7a91b8ced6188d55732ccb4e730b8539462e5801fce2f499fe2044688
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7b3ca2d7a91b8ced6188d55732ccb4e730b8539462e5801fce2f499fe2044688/
Threat name:
Linux.Trojan.Multiverze
Create hunting rule
Status:
Malicious
First seen:
2025-06-21 17:46:35 UTC
File Type:
ELF64 Big (Exe)
AV detection:
13 of 24 (54.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=pm6kfv5jdogo2ymi2vltftfu44ylqu4umlsyah6of5ez7yqei2ea._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Link:
https://tria.ge/reports/250621-wb42yavwcv/
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/03a7d980-40a2-4a24-9200-a6ad56ac3a27
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/7b3ca2d7a91b8ced6188d55732ccb4e730b8539462e5801fce2f499fe2044688

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 7b3ca2d7a91b8ced6188d55732ccb4e730b8539462e5801fce2f499fe2044688

(this sample)

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

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
CHECK_TRUST_INFORequires Elevated Execution (level:requireAdministrator)high
Reviews
IDCapabilitiesEvidence
VB_APILegacy Visual Basic API usedMSVBVM60.DLL::__vbaCopyBytes
MSVBVM60.DLL::__vbaSetSystemError
MSVBVM60.DLL::__vbaExitProc
MSVBVM60.DLL::__vbaObjSetAddref
MSVBVM60.DLL::EVENT_SINK_AddRef
MSVBVM60.DLL::__vbaFileOpen

Comments