MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 eecb4035c620f07749f4627e6c7243dd4053b4918c6d76e236374900d0dace3b. 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


BlackNET


Vendor detections: 16


Intelligence 16 IOCs YARA 14 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: eecb4035c620f07749f4627e6c7243dd4053b4918c6d76e236374900d0dace3b
SHA3-384 hash: 8d7965ea9ce02dc59132bf97c5691c331fbb75b252116fdf7c83cec00d2c65afc1d8db15df21fea5c46021c4b77dbc22
SHA1 hash: b04f4689ac1ecd317387b28fad290f15a68878d9
MD5 hash: d867a6939e03ff1ccf63605dddea632e
humanhash: delaware-carolina-fifteen-quiet
File name:D867A6939E03FF1CCF63605DDDEA632E.exe
Download: download sample
Signature BlackNET
Create hunting rule
File size:199'680 bytes
First seen:2024-03-04 12:30:14 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'829 x AgentTesla, 19'759 x Formbook, 12'295 x SnakeKeylogger)
ssdeep 1536:eZuhD5z28TC2PBttWjm38hPMsCoTgbSUPH4Lksi9WXU+pOk+G8wb/APcz+tBvqtu:7pmjm38QegbSKHanO1wbClvmYlVfm+
Threatray 12 similar samples on MalwareBazaar
TLSH T1B714945236EF144AE3F75B701BE6B7BEC7B2EEA76122913D10E12E4B9A356419C00371
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon f0f4d8fcecccf0c4 (1 x BlackNET)
Reporter abuse_ch
Tags:BlackNet exe


Avatar
abuse_ch
BlackNET C2:
http://ct46452.tw1.ru/receive.php

Intelligence

File Origin
# of uploads :
1
# of downloads :
343
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
blacknet
Create hunting rule
ID:
1
File name:
662344d80ecad59d7c9d4e0ad6864f8ccbbdf1a73321bc3ffeb24e5cec3e1bf3.exe
Verdict:
Malicious activity
Analysis date:
2024-03-04 04:32:30 UTC
Tags:
blacknet trojan
Link:
https://app.any.run/tasks/e416e0db-6866-42e1-9c36-e08ac07b426f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Trojan.BlackNetRAT-7838854-0
Create hunting rule

Win.Malware.Ursu-9794593-0
Create hunting rule

ditekSHen.MALWARE.Win.Trojan.BlackNET.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a window
Creating a file in the %AppData% subdirectories
Using the Windows Management Instrumentation requests
Searching for synchronization primitives
DNS request
Connection attempt
Sending an HTTP GET request
Sending a custom TCP request
Launching a process
Creating a file in the %temp% subdirectories
Enabling the 'hidden' option for files in the %temp% directory
Enabling the 'hidden' option for analyzed file
Creating a file
Creating a process from a recently created file
Enabling the 'hidden' option for recently created files
Restart of the analyzed sample
Deleting a recently created file
Replacing files
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Creating a file in the mass storage device
Enabling threat expansion on mass storage devices
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug anti-vm blacknet blackworm cmd evasive explorer hook keylogger loki lolbin net packed powershell schtasks worm
Link:
https://www.filescan.io/uploads/65e5bf08f4f4cdd404ead1a3/reports/adc109d9-7feb-4614-804d-79c40c2f0a3d/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/eecb4035c620f07749f4627e6c7243dd4053b4918c6d76e236374900d0dace3b
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
BlackNet RAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b6750c06-5a68-459f-97bd-9d262b2fe5d3
Result
Threat name:
BlackNET
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1402577
Signature
.NET source code contains a sample name check
.NET source code contains potential unpacker
.NET source code contains very large strings
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Contains functionality to log keystrokes (.Net Source)
Creates autostart registry keys with suspicious names
Disables Windows Defender (via service or powershell)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies Windows Defender protection settings
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sets debug register (to hijack the execution of another thread)
Sigma detected: New RUN Key Pointing to Suspicious Folder
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Powershell Defender Disable Scan Feature
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected BlackNET
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1402577 Sample: PKtxhsNM3r.exe Startdate: 04/03/2024 Architecture: WINDOWS Score: 100 101 vh400.timeweb.ru 2->101 103 ct46452.tw1.ru 2->103 107 Snort IDS alert for network traffic 2->107 109 Malicious sample detected (through community Yara rule) 2->109 111 Antivirus detection for URL or domain 2->111 113 15 other signatures 2->113 11 PKtxhsNM3r.exe 15 35 2->11         started        16 PKtxhsNM3r.exe 2->16         started        18 WindowsUpdate.exe 2->18         started        signatures3 process4 dnsIp5 105 ct46452.tw1.ru 92.53.96.128, 443, 49701, 49702 TIMEWEB-ASRU Russian Federation 11->105 97 C:\Users\user\Desktop\svchosts.exe, PE32 11->97 dropped 99 C:\Users\user\AppData\...\WindowsUpdate.exe, PE32 11->99 dropped 127 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 11->127 20 WindowsUpdate.exe 14 28 11->20         started        24 svchosts.exe 11->24         started        26 powershell.exe 23 11->26         started        28 WindowsUpdate.exe 16->28         started        30 dw20.exe 16->30         started        32 dw20.exe 18->32         started        file6 signatures7 process8 file9 95 C:\Users\user\AppData\Local\...\svchosts.exe, PE32 20->95 dropped 115 Antivirus detection for dropped file 20->115 117 Multi AV Scanner detection for dropped file 20->117 119 Machine Learning detection for dropped file 20->119 123 3 other signatures 20->123 34 powershell.exe 20->34         started        36 powershell.exe 20->36         started        38 powershell.exe 20->38         started        49 11 other processes 20->49 40 PKtxhsNM3r.exe 24->40         started        42 PKtxhsNM3r.exe 24->42         started        45 conhost.exe 26->45         started        121 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 28->121 47 dw20.exe 28->47         started        signatures10 process11 signatures12 51 conhost.exe 34->51         started        53 conhost.exe 36->53         started        55 conhost.exe 38->55         started        57 WindowsUpdate.exe 40->57         started        59 powershell.exe 40->59         started        125 Creates autostart registry keys with suspicious names 42->125 61 powershell.exe 42->61         started        63 WindowsUpdate.exe 42->63         started        65 conhost.exe 49->65         started        67 10 other processes 49->67 process13 process14 69 powershell.exe 57->69         started        71 powershell.exe 57->71         started        73 powershell.exe 57->73         started        79 11 other processes 57->79 75 conhost.exe 59->75         started        77 conhost.exe 61->77         started        process15 81 conhost.exe 69->81         started        83 conhost.exe 71->83         started        85 conhost.exe 73->85         started        87 conhost.exe 79->87         started        89 conhost.exe 79->89         started        91 conhost.exe 79->91         started        93 8 other processes 79->93
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/eecb4035c620f07749f4627e6c7243dd4053b4918c6d76e236374900d0dace3b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/eecb4035c620f07749f4627e6c7243dd4053b4918c6d76e236374900d0dace3b/
Threat name:
ByteCode-MSIL.Backdoor.Blacknet
Create hunting rule
Status:
Malicious
First seen:
2024-02-28 03:00:38 UTC
File Type:
PE (.Net Exe)
Extracted files:
18
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=53fuanogedyhospumj7gy4sd3vafhnerrrwxnyrwg5eqbug2zy5q._file
Verdict:
malicious
Similar samples:
662344d80ecad59d7c9d4e0ad6864f8ccbbdf1a73321bc3ffeb24e5cec3e1bf3
BlackNET
a7758f03d40f51f6c0b3f84e40fb7e5ae468fd315d6c4ea2b67b664d347fc98b
BlackNET
c105e8c3286a2589c4bbdaefbd266cd45be414d08854e48b4aa43104cc48c510
BlackNET
c9bd849cb30e63f3fa72d83b52303b21f3a880a5e7c6236e38a92dc078467e8d
BlackNET
eecb4035c620f07749f4627e6c7243dd4053b4918c6d76e236374900d0dace3b
BlackNET
+ 2 additional samples on MalwareBazaar
Result
Malware family:
blacknet
Create hunting rule
Score:
  10/10
Tags:
family:blacknet botnet:windows update evasion persistence trojan
Link:
https://tria.ge/reports/240304-pp2qeabd48/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Adds Run key to start application
Executes dropped EXE
Windows security modification
BlackNET
BlackNET payload
Contains code to disable Windows Defender
Modifies Windows Defender Real-time Protection settings
Unpacked files
SH256 hash:
eecb4035c620f07749f4627e6c7243dd4053b4918c6d76e236374900d0dace3b
MD5 hash:
d867a6939e03ff1ccf63605dddea632e
SHA1 hash:
b04f4689ac1ecd317387b28fad290f15a68878d9
Detections:
BlackNetRAT
Create hunting rule
win_blacknet_rat_w0
Create hunting rule
Gen_Base64_EXE
Create hunting rule
HKTL_NET_GUID_BlackNET
Create hunting rule
SUSP_Modified_SystemExeFileName_in_File
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender
Create hunting rule
INDICATOR_SUSPICIOUS_DisableWinDefender
Create hunting rule
MALWARE_Win_BlackNET
Create hunting rule
Link:
https://www.unpac.me/results/67645cae-6e54-4763-b161-f58fd5683558/
Parent samples :
662344d80ecad59d7c9d4e0ad6864f8ccbbdf1a73321bc3ffeb24e5cec3e1bf3
eecb4035c620f07749f4627e6c7243dd4053b4918c6d76e236374900d0dace3b
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/eecb4035c620f07749f4627e6c7243dd4053b4918c6d76e236374900d0dace3b

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:d238aea078ca1bb99a80ec2bf5d07acb818d72e7823ea8e767eefde95a038401
Create hunting rule
Author:H3lium
Description:MALWARE! - file d238aea078ca1bb99a80ec2bf5d07acb818d72e7823ea8e767eefde95a038401.exe
Reference:https://github.com/Neo23x0/yarGen
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:HKTL_NET_GUID_BlackNET
Create hunting rule
Author:Arnim Rupp (https://github.com/ruppde)
Description:Detects VB.NET red/black-team tools via typelibguid
Reference:https://github.com/BlackHacker511/BlackNET
Rule name:INDICATOR_SUSPICIOUS_DisableWinDefender
Create hunting rule
Author:ditekSHen
Description:Detects executables containing artifacts associated with disabling Widnows Defender
Rule name:INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender
Create hunting rule
Author:ditekSHen
Description:Detects executables embedding registry key / value combination indicative of disabling Windows Defender features
Rule name:MALWARE_Win_BlackNET
Create hunting rule
Author:ditekSHen
Description:Detects BlackNET RAT
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_Modified_SystemExeFileName_in_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detecst a variant of a system file name often used by attackers to cloak their activity
Reference:https://www.symantec.com/blogs/threat-intelligence/seedworm-espionage-group
Rule name:SUSP_Modified_SystemExeFileName_in_File_RID35F8
Create hunting rule
Author:Florian Roth
Description:Detecst a variant of a system file name often used by attackers to cloak their activity
Reference:https://www.symantec.com/blogs/threat-intelligence/seedworm-espionage-group
Rule name:win_blacknet_rat_w0
Create hunting rule
Author:K7 Security Labs
Description:BlackNet Payload

File information

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

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_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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