MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b8e91fc97ec9c7aa4ec79f91c402b87586f9f32090f6e2985f1fccbfd786272. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4b8e91fc97ec9c7aa4ec79f91c402b87586f9f32090f6e2985f1fccbfd786272
SHA3-384 hash: c5e15aea9ed8370d8774268b6642cee5ea485a1638abeefc2967d1d563f063f758a475411fc2aa62f8a91add33a0c908
SHA1 hash: 4de662361ef666d0f850a455625e8f536425b514
MD5 hash: 8d4935ac02c717f7a7c12836b0445365
humanhash: double-east-tennessee-summer
File name:i686
Download: download sample
File size:587'764 bytes
First seen:2025-06-12 09:30:16 UTC
Last seen:2025-06-12 17:11:34 UTC
File type: elf
MIME type:application/x-executable
ssdeep 12288:5D+Azf/CVCW3ISw+hRNb3W/aTyA9VV/cZWLnR98V+:5D+AznCVNIZ+vNbG/WYWrR98V
TLSH T1E1C42241EAB7C0F2F65349320103E7BF8F33C9099165D2A6DB42F661EDB1B42469E66C
TrID 50.1% (.) ELF Executable and Linkable format (Linux) (4022/12)
49.8% (.O) ELF Executable and Linkable format (generic) (4000/1)
Magika elf
Reporter abuse_ch
Tags:elf

Intelligence

File Origin
# of uploads :
4
# of downloads :
80
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.32058.LX.BOT.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.31951.LX.BOT.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Siggen.9095.10365.6263.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
90.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=684aa0348bd5d68a12e80b19linux22vpnfull_triage
Tags:
shellcode virus
Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Creating a process from a recently created file
Connection attempt
Changes access rights for a written file
Collects information on the CPU
Receives data from a server
Locks files
DNS request
Opens a port
Sends data to a server
Launching a process
Changes the time when the file was created, accessed, or modified
Creating a file in the %temp% directory
Creating a file
Creates directories
Creates or modifies files in /cron to set up autorun
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/98de2027-2b41-4caa-ba50-6f5c82bbeec0
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.spyw
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1713062
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: 1713062 Sample: i686.elf Startdate: 12/06/2025 Architecture: LINUX Score: 68 38 185.177.126.221, 6881, 6884 WORLDSTREAMNL Netherlands 2->38 40 92.42.212.209, 62976, 6881 WESTCALL-ASRU Russian Federation 2->40 42 101 other IPs or domains 2->42 44 Multi AV Scanner detection for submitted file 2->44 46 Connects to many ports of the same IP (likely port scanning) 2->46 10 i686.elf configuration 2->10         started        signatures3 process4 process5 12 i686.elf sh 10->12         started        14 configuration 10->14         started        17 i686.elf sh 10->17         started        signatures6 19 sh crontab 12->19         started        23 sh 12->23         started        54 Opens /sys/class/net/* files useful for querying network interface information 14->54 56 Sample reads /proc/mounts (often used for finding a writable filesystem) 14->56 25 configuration 14->25         started        27 sh crontab 17->27         started        process7 file8 36 /var/spool/cron/crontabs/tmp.W5lc7L, ASCII 19->36 dropped 48 Sample tries to persist itself using cron 19->48 50 Executes the "crontab" command typically for achieving persistence 19->50 29 sh crontab 23->29         started        32 configuration 25->32         started        signatures9 process10 signatures11 52 Executes the "crontab" command typically for achieving persistence 29->52 34 configuration 32->34         started        process12
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/4b8e91fc97ec9c7aa4ec79f91c402b87586f9f32090f6e2985f1fccbfd786272
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4b8e91fc97ec9c7aa4ec79f91c402b87586f9f32090f6e2985f1fccbfd786272/
Threat name:
Linux.Trojan.SAgnt
Create hunting rule
Status:
Malicious
First seen:
2025-06-12 09:34:33 UTC
File Type:
ELF32 Little (Exe)
AV detection:
17 of 38 (44.74%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=johjd7ex5sohvjhmph4ryqblq5mg7hzsbehw4kmf6h6mx7lymjza._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
antivm defense_evasion discovery execution linux persistence privilege_escalation
Link:
https://tria.ge/reports/250612-llff8asrx2/
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
Writes file to tmp directory
Checks CPU configuration
Checks hardware identifiers (DMI)
Creates/modifies Cron job
Enumerates running processes
Reads MAC address of network interface
Reads hardware information
Renames itself
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/3e484dce-a74c-4e49-9e0a-24ba29e3231e
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4b8e91fc97ec9c7aa4ec79f91c402b87586f9f32090f6e2985f1fccbfd786272

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 4b8e91fc97ec9c7aa4ec79f91c402b87586f9f32090f6e2985f1fccbfd786272

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3558166/
  
Delivery method
Distributed via web download

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