MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7fb7e8e4bcfbc4fd0bfb241d22c5ab5811c00a721c9cb9cc647dfac7526cfcdb. 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: 8


Intelligence 8 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7fb7e8e4bcfbc4fd0bfb241d22c5ab5811c00a721c9cb9cc647dfac7526cfcdb
SHA3-384 hash: a99361e8111c58fd6e690e32356af7003484643226c0d3fd1fdcb8f9bd7a2a130ace04accf9947d2abb9dcd92a3631e5
SHA1 hash: c6cc756e0ec99df64a3315005f3c8f4ef483b888
MD5 hash: 5da04f590a8db165be27da16f7b93ea2
humanhash: robert-texas-helium-eleven
File name:amd64
Download: download sample
File size:482'032 bytes
First seen:2025-05-27 06:36:00 UTC
Last seen:2025-05-27 22:30:31 UTC
File type: elf
MIME type:application/x-executable
ssdeep 12288:iD6LPBCvMk0O9na1M80cLt9i5aIaTtpc4W:2+QGO9naz0Szi5anTtR
TLSH T165A41212E290D8FEC4DAC070469FD27BFD767C544234BC6B6298F7322B3AE601B16A55
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 :
64
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Siggen.9080.25688.30320.UNOFFICIAL
Create hunting rule

Verdict:
Clean
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68355f0facf88f5815e77915linux22vpnfull_triage
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creates directories
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
exploit gcc lolbin remote
Link:
https://www.filescan.io/uploads/68355d82fd02ed5e05898da7/reports/e51e12dd-ca1d-4556-8c53-76f1cc168f26/overview
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/e9024f12-4dc8-402f-baee-7d95bfbbca18
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.spyw
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1699572
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
Uses known network protocols on non-standard ports
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1699572 Sample: amd64.elf Startdate: 27/05/2025 Architecture: LINUX Score: 68 42 75.91.119.242, 6881, 6882 WINDSTREAMUS United States 2->42 44 191.242.53.193, 49193, 6881 WAYCOMPROVEDORBANDALARGALTDA-MEBR Brazil 2->44 46 102 other IPs or domains 2->46 54 Multi AV Scanner detection for submitted file 2->54 56 Uses known network protocols on non-standard ports 2->56 10 amd64.elf 2->10         started        12 dash rm 2->12         started        14 dash rm 2->14         started        signatures3 process4 process5 16 amd64.elf sh 10->16         started        18 amd64.elf 10->18         started        21 amd64.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 amd64.elf 18->29         started        31 sh crontab 21->31         started        process7 file8 40 /var/spool/cron/crontabs/tmp.sPw0g6, 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 amd64.elf 29->36         started        signatures9 process10 signatures11 48 Executes the "crontab" command typically for achieving persistence 33->48 38 amd64.elf 36->38         started        process12
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/7fb7e8e4bcfbc4fd0bfb241d22c5ab5811c00a721c9cb9cc647dfac7526cfcdb
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7fb7e8e4bcfbc4fd0bfb241d22c5ab5811c00a721c9cb9cc647dfac7526cfcdb/
Threat name:
Linux.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-05-27 06:36:34 UTC
File Type:
ELF64 Little (Exe)
AV detection:
16 of 37 (43.24%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=p636rzf47pcp2c73eqosfrnllai4actsdsolttdepx5moutm7tnq._file
Result
Malware family:
n/a
Score:
  6/10
Tags:
antivm defense_evasion discovery execution linux persistence privilege_escalation
Link:
https://tria.ge/reports/250527-hc7mkaaq4t/
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
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/dc3508a4-66f0-4464-b979-846bbbba1ebb
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.20
Link:
https://yomi.yoroi.company/submissions/7fb7e8e4bcfbc4fd0bfb241d22c5ab5811c00a721c9cb9cc647dfac7526cfcdb

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:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:enterpriseunix2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise UNIX
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 7fb7e8e4bcfbc4fd0bfb241d22c5ab5811c00a721c9cb9cc647dfac7526cfcdb

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3550686/
  
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_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments