MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 755906ab791dc82b1794492126f8253f8a8784d13ed19bc09468296b0e2f7472. 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


Merlin


Vendor detections: 9


Intelligence 9 IOCs YARA 25 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 755906ab791dc82b1794492126f8253f8a8784d13ed19bc09468296b0e2f7472
SHA3-384 hash: 802122272efb75af501e25ca2a5f51aa92ece0dfa2a55f8d7709fb95dd37440584a64a51768baa13715f7e556e16be0b
SHA1 hash: ebc29b6e59da7a72933831e1d076180924d7cd7a
MD5 hash: 5cc49e5c2fc65ffc8484b33620273bc7
humanhash: apart-dakota-vermont-network
File name:kwthread
Download: download sample
Signature Merlin
Create hunting rule
File size:9'421'043 bytes
First seen:2025-07-16 02:45:01 UTC
Last seen:2025-07-16 05:19:59 UTC
File type: elf
MIME type:application/x-executable
ssdeep 98304:2ZOCa+4GBJpKMR7TPLeplB/WyWc+tLEIK8Xoe0l:WXpBJpK4PijB/WyItYIPY
TLSH T13F964B43E8A105E4C1EED174CA669263BEB17C484B3127D72F60F7682F72BD06AB9750
gimphash e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
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 Merlin

Intelligence

File Origin
# of uploads :
3
# of downloads :
21
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.ELF.MerlinAgent-A.20836.15083.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Sends data to a server
Receives data from a server
Connection attempt
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
crypto golang merlin
Link:
https://www.filescan.io/uploads/687712578a7d628a81b14c52/reports/07746a97-b2e7-4839-98f4-32cd67ba44f4/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
11
Number of processes launched:
5
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/755906ab791dc82b1794492126f8253f8a8784d13ed19bc09468296b0e2f7472
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/6e9d0c69-2be3-4412-be9d-ab03f86d3607
Behavior Graph:
Download SVG
%3 guuid=6d4f031b-1b00-0000-5647-818c8b0b0000 pid=2955 /usr/bin/sudo guuid=a13d321e-1b00-0000-5647-818c8c0b0000 pid=2956 /tmp/sample.bin dns net send-data guuid=6d4f031b-1b00-0000-5647-818c8b0b0000 pid=2955->guuid=a13d321e-1b00-0000-5647-818c8c0b0000 pid=2956 execve 4f6baed0-9587-596c-82b3-fd721afe4cc1 10.0.2.3:53 guuid=a13d321e-1b00-0000-5647-818c8c0b0000 pid=2956->4f6baed0-9587-596c-82b3-fd721afe4cc1 send: 252B guuid=a13d321e-1b00-0000-5647-818c8c0b0000 pid=2957 /tmp/sample.bin guuid=a13d321e-1b00-0000-5647-818c8c0b0000 pid=2956->guuid=a13d321e-1b00-0000-5647-818c8c0b0000 pid=2957 clone guuid=a13d321e-1b00-0000-5647-818c8c0b0000 pid=2967 /tmp/sample.bin dns net send-data guuid=a13d321e-1b00-0000-5647-818c8c0b0000 pid=2956->guuid=a13d321e-1b00-0000-5647-818c8c0b0000 pid=2967 clone guuid=a13d321e-1b00-0000-5647-818c8c0b0000 pid=2968 /tmp/sample.bin dns net send-data guuid=a13d321e-1b00-0000-5647-818c8c0b0000 pid=2956->guuid=a13d321e-1b00-0000-5647-818c8c0b0000 pid=2968 clone guuid=a13d321e-1b00-0000-5647-818c8c0b0000 pid=2969 /tmp/sample.bin guuid=a13d321e-1b00-0000-5647-818c8c0b0000 pid=2956->guuid=a13d321e-1b00-0000-5647-818c8c0b0000 pid=2969 clone guuid=a13d321e-1b00-0000-5647-818c8c0b0000 pid=2970 /tmp/sample.bin guuid=a13d321e-1b00-0000-5647-818c8c0b0000 pid=2956->guuid=a13d321e-1b00-0000-5647-818c8c0b0000 pid=2970 clone guuid=a13d321e-1b00-0000-5647-818c8c0b0000 pid=2971 /tmp/sample.bin guuid=a13d321e-1b00-0000-5647-818c8c0b0000 pid=2956->guuid=a13d321e-1b00-0000-5647-818c8c0b0000 pid=2971 clone guuid=a13d321e-1b00-0000-5647-818c8c0b0000 pid=2967->4f6baed0-9587-596c-82b3-fd721afe4cc1 send: 189B guuid=a13d321e-1b00-0000-5647-818c8c0b0000 pid=2968->4f6baed0-9587-596c-82b3-fd721afe4cc1 send: 126B
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/25c0db11-8ebe-4f5d-9649-6cd3346b0be1
Result
Threat name:
Merlin
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1737649
Signature
Antivirus / Scanner detection for submitted sample
Found Tor onion address
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Uses dynamic DNS services
Yara detected Merlin
Behaviour
Behavior Graph:
Download SVG
Score:
91%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/755906ab791dc82b1794492126f8253f8a8784d13ed19bc09468296b0e2f7472
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/755906ab791dc82b1794492126f8253f8a8784d13ed19bc09468296b0e2f7472/
Threat name:
Linux.Trojan.Merlin
Create hunting rule
Status:
Malicious
First seen:
2025-01-11 07:02:10 UTC
File Type:
ELF64 Little (Exe)
AV detection:
15 of 38 (39.47%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ovmqnk3zdxecwf4ujeqsn6bfh6fipbgrh3izxqeunauwwdrporza._file
Result
Malware family:
merlin
Create hunting rule
Score:
  10/10
Tags:
family:merlin discovery linux
Link:
https://tria.ge/reports/250716-c84ynayqs9/
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
Verdict:
Unknown
Tags:
commandandcontrol merlin trojan
YARA:
merlinAgent Linux_Generic_Threat_2c8d824c Multi_Trojan_Merlin_32643f4c
Link:
https://app.threat.zone/submission/ae108654-ca68-4e60-a7c7-68e90d5ad844
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.62
Link:
https://yomi.yoroi.company/submissions/755906ab791dc82b1794492126f8253f8a8784d13ed19bc09468296b0e2f7472

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:botnet_plaintext_c2
Create hunting rule
Author:cip
Description:Attempts to match at least some of the strings used in some botnet variants which use plaintext communication protocols.
Rule name:dependsonpythonailib
Create hunting rule
Author:Tim Brown
Description:Hunts for dependencies on Python AI libraries
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:DetectGoMethodSignatures
Create hunting rule
Author:Wyatt Tauber
Description:Detects Go method signatures in unpacked Go binaries
Rule name:Detect_Go_GOMAXPROCS
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects Go binaries by the presence of runtime.GOMAXPROCS in the runtime metadata
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:F01_s1ckrule
Create hunting rule
Author:s1ckb017
Rule name:GoBinTest
Create hunting rule
Rule name:golang
Create hunting rule
Rule name:golang_binary_string
Create hunting rule
Description:Golang strings present
Rule name:golang_duffcopy_amd64
Create hunting rule
Rule name:html_auto_download_b64
Create hunting rule
Author:Tdawg
Description:html auto download
Rule name:identity_golang
Create hunting rule
Author:Eric Yocam
Description:find Golang malware
Rule name:Linux_Generic_Threat_2c8d824c
Create hunting rule
Author:Elastic Security
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:merlinAgent
Create hunting rule
Author:Hilko Bengen
Description:Detects Merlin agent
Reference:https://github.com/Ne0nd0g/merlin
Rule name:Multi_Trojan_Merlin_32643f4c
Create hunting rule
Author:Elastic Security
Rule name:ProgramLanguage_Golang
Create hunting rule
Author:albertzsigovits
Description:Application written in Golang programming language
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:test_Malaysia
Create hunting rule
Author:rectifyq
Description:Detects file containing malaysia string
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

Merlin

elf 755906ab791dc82b1794492126f8253f8a8784d13ed19bc09468296b0e2f7472

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3584186/
  
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