MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6fd4de5b20bb60bbc9d1cdc1619c2647652c08f454c96f927283af796cf1cf3e. 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


ConnectBack


Vendor detections: 11


Intelligence 11 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6fd4de5b20bb60bbc9d1cdc1619c2647652c08f454c96f927283af796cf1cf3e
SHA3-384 hash: 65176fb21636dcd0ddd674aca2139da7bca8382ab0d1ec65e8eb107bec587d8dca8ffacbb3d7178aa28721c95668d72c
SHA1 hash: 1e23b747e896d84d344d15673020c8d8c0d3c68d
MD5 hash: d89195c4901e0372dfb5423c2e44a6d3
humanhash: low-mexico-stream-football
File name:tmp.elf
Download: download sample
Signature ConnectBack
Create hunting rule
File size:250 bytes
First seen:2024-12-13 08:16:10 UTC
Last seen:2024-12-25 11:21:21 UTC
File type: elf
MIME type:application/x-executable
ssdeep 6:BnX//In8/r1uBxHocmTSD9Q3RQdygg5XJYD:BvwncrAH3mGDq532D
TLSH T125D080330B0E80EADAD4063F6574596CD77BD976574962710850DD010C49A045F52C7A
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 Joker
Tags:ConnectBack elf malware Metasploit

Intelligence

File Origin
# of uploads :
2
# of downloads :
91
Origin country :
GR GR
Vendor Threat Intelligence
Detection(s):
Unix.Backdoor.Msfvenom-10012672-0
Create hunting rule

Verdict:
Clean
Score:
82.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=675bee9889dbe216234fc9b5linux22vpnfull_triage
Tags:
malware
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug
Link:
https://www.filescan.io/uploads/675bed7f748e7702e7575dbd/reports/bcbbaaa7-9dd3-4c0c-afb0-94d11022aa9b/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
UPX
Botnet:
unknown
Number of open files:
0
Number of processes launched:
1
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/6fd4de5b20bb60bbc9d1cdc1619c2647652c08f454c96f927283af796cf1cf3e
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Verdict:
MALICIOUS
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/8740cbb1-2512-4661-b02a-9b1113877ab0
Result
Threat name:
ConnectBack
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1574359
Signature
Connects to many ports of the same IP (likely port scanning)
Found malware configuration
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Yara detected ConnectBack
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/6fd4de5b20bb60bbc9d1cdc1619c2647652c08f454c96f927283af796cf1cf3e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6fd4de5b20bb60bbc9d1cdc1619c2647652c08f454c96f927283af796cf1cf3e/
Threat name:
Linux.Backdoor.ConnectBack
Create hunting rule
Status:
Malicious
First seen:
2024-12-13 08:17:03 UTC
File Type:
ELF64 Little (Exe)
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=n7kn4wzaxnqlxsorzxawdhbgi5ssychuktew7etsqoxxs3hrz47a._file
Result
Malware family:
connectback
Create hunting rule
Score:
  10/10
Tags:
family:connectback linux
Link:
https://tria.ge/reports/241213-j6pvaavkgp/
Malware Config
C2 Extraction:
176.122.27.90:12349
Verdict:
Malicious
Tags:
Unix.Backdoor.Msfvenom-10012672-0
YARA:
n/a
Link:
https://app.threat.zone/submission/40acab28-e429-48e0-8101-ec859a8291ff
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.23
Link:
https://yomi.yoroi.company/submissions/6fd4de5b20bb60bbc9d1cdc1619c2647652c08f454c96f927283af796cf1cf3e

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_Trojan_Metasploit_69e20012
Create hunting rule
Author:Elastic Security

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

ConnectBack

elf 6fd4de5b20bb60bbc9d1cdc1619c2647652c08f454c96f927283af796cf1cf3e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3347438/
  
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_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments