MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fef48b590bf438b5dea4215d7661feff03d66969dd83e64407df958bd345dc44. 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: fef48b590bf438b5dea4215d7661feff03d66969dd83e64407df958bd345dc44
SHA3-384 hash: ddca39d717d2e53f0b3fad9c1fa8f73781c94e1ee6896af096ebe6dc0de7626e15c615ac87b07e0b7e2c03b1097cbf38
SHA1 hash: d52a2fcfc3be8c0c467a9420dd6d904d1277e7c2
MD5 hash: bfcf4be2a411ee9df4e92ab31801df63
humanhash: oxygen-bacon-cold-six
File name:aarch64
Download: download sample
File size:509'896 bytes
First seen:2025-06-05 15:12:04 UTC
Last seen:2025-06-06 10:10:12 UTC
File type: elf
MIME type:application/x-executable
ssdeep 6144:O/izeB+/ow3gK2lc5bvyI0vOHD6BZkDgn358cIF3RI5HkdY1FP98/8ecjfP:3BohHKTyfvOHD6ByD4WcIMkuDmEesP
TLSH T1F4B41228EE4E38C1F3D1E378DA0A4BB1B05B79D0C166C1B2BA41E25D95EDDDEC5D0212
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 :
2
# of downloads :
67
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Siggen.9163.5315.5811.UNOFFICIAL
Create hunting rule

Verdict:
Clean
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6841b4ab8bd5d68a12e59602linux22vpnfull_triage
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creates directories
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
exploit gcc lolbin remote
Link:
https://www.filescan.io/uploads/6841b3d869bfbf6bbcb9637e/reports/16d371f2-e987-4637-b6ea-3b3216657608/overview
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/52059b95-ed49-4390-a82e-b3e2a7ad5ceb
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.spyw
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1707317
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 scans a subnet
Sample tries to persist itself using cron
Uses known network protocols on non-standard ports
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1707317 Sample: aarch64.elf Startdate: 05/06/2025 Architecture: LINUX Score: 76 38 31.200.249.162, 31850, 34596 NETRACK-ASRU Russian Federation 2->38 40 178.162.174.154, 28009, 6881 LEASEWEB-NL-AMS-01NetherlandsNL Netherlands 2->40 42 102 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 48 Sample scans a subnet 2->48 50 Uses known network protocols on non-standard ports 2->50 10 aarch64.elf 2->10         started        signatures3 process4 process5 12 aarch64.elf sh 10->12         started        14 aarch64.elf 10->14         started        17 aarch64.elf sh 10->17         started        signatures6 19 sh crontab 12->19         started        23 sh 12->23         started        58 Opens /sys/class/net/* files useful for querying network interface information 14->58 60 Sample reads /proc/mounts (often used for finding a writable filesystem) 14->60 25 aarch64.elf 14->25         started        27 sh crontab 17->27         started        process7 file8 36 /var/spool/cron/crontabs/tmp.WFfRmR, ASCII 19->36 dropped 52 Sample tries to persist itself using cron 19->52 54 Executes the "crontab" command typically for achieving persistence 19->54 29 sh crontab 23->29         started        32 aarch64.elf 25->32         started        signatures9 process10 signatures11 56 Executes the "crontab" command typically for achieving persistence 29->56 34 aarch64.elf 32->34         started        process12
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/fef48b590bf438b5dea4215d7661feff03d66969dd83e64407df958bd345dc44
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/fef48b590bf438b5dea4215d7661feff03d66969dd83e64407df958bd345dc44/
Threat name:
Linux.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-06-05 15:12:21 UTC
File Type:
ELF64 Little (Exe)
AV detection:
12 of 24 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=732iwwil6q4llxveefoxmyp674b5m2lj3wb6mrah36kyxu2f3rca._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Link:
https://tria.ge/reports/250605-slb75aznv5/
Verdict:
Informative
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/9ef2b3d1-defd-41d6-8782-38b44b885572
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/fef48b590bf438b5dea4215d7661feff03d66969dd83e64407df958bd345dc44

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 fef48b590bf438b5dea4215d7661feff03d66969dd83e64407df958bd345dc44

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3558221/
  
Delivery method
Distributed via web download

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