MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 13071bfbab50392760533f3f0b0f137808ef67852ce92ef6eddb9155266ec066. 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: 12


Intelligence 12 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 13071bfbab50392760533f3f0b0f137808ef67852ce92ef6eddb9155266ec066
SHA3-384 hash: 21f3c12cfbab9db1a4ec7b610a89f2025bc6635799f1c6d963cc3b58cd16dc0f0c4b415a2785cf653be99ca7942d259a
SHA1 hash: 69e96c76639fbe884c75cd726ac2f67f45036d01
MD5 hash: 65abefedf8df2fc0e44d29151a5abff6
humanhash: bakerloo-helium-blue-burger
File name:temp.elf
Download: download sample
Signature ConnectBack
Create hunting rule
File size:250 bytes
First seen:2024-12-13 08:16:20 UTC
Last seen:2024-12-25 11:21:20 UTC
File type: elf
MIME type:application/x-executable
ssdeep 6:BnX//In8/r1uBxHocmTFD9Q3RQdygg5XJYD:BvwncrAH3mZDq532D
TLSH T1A6D080330B0A80EADAD4063F6578596CD77BDAB6574973750850DD010C09A046F52C79
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 :
99
Origin country :
GR GR
Vendor Threat Intelligence
Detection(s):
Unix.Backdoor.Msfvenom-10012672-0
Create hunting rule

Verdict:
Malicious
Score:
95.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=675beea089dbe216234fc9c7linux22vpnfull_triage
Tags:
metasploit shellcode virus
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/675bed842fbd473404300357/reports/569087f2-c3a7-453b-bc87-2a9771d3db4b/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/13071bfbab50392760533f3f0b0f137808ef67852ce92ef6eddb9155266ec066
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/1d72409a-42ac-4cc6-8908-a49ffd9bd719
Result
Threat name:
ConnectBack
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1574354
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/13071bfbab50392760533f3f0b0f137808ef67852ce92ef6eddb9155266ec066
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/13071bfbab50392760533f3f0b0f137808ef67852ce92ef6eddb9155266ec066/
Threat name:
Linux.Backdoor.ConnectBack
Create hunting rule
Status:
Malicious
First seen:
2024-12-13 08:17:07 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=cmdrx65lka4soycth47qwdytpaeo6z4fftus55xn3oivkjtoybta._file
Result
Malware family:
connectback
Create hunting rule
Score:
  10/10
Tags:
family:connectback linux
Link:
https://tria.ge/reports/241213-j6pvaavkhk/
Malware Config
C2 Extraction:
176.122.27.90:12356
Verdict:
Malicious
Tags:
Unix.Backdoor.Msfvenom-10012672-0
YARA:
n/a
Link:
https://app.threat.zone/submission/a3fe2469-c301-49ab-9c56-cfdd45a3950f
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/13071bfbab50392760533f3f0b0f137808ef67852ce92ef6eddb9155266ec066

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 13071bfbab50392760533f3f0b0f137808ef67852ce92ef6eddb9155266ec066

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3347432/
  
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