MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a7758f03d40f51f6c0b3f84e40fb7e5ae468fd315d6c4ea2b67b664d347fc98b. 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: 17


Intelligence 17 IOCs YARA 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a7758f03d40f51f6c0b3f84e40fb7e5ae468fd315d6c4ea2b67b664d347fc98b
SHA3-384 hash: 4f5172fe0e506f1cbb001c25a4b9c60914478cfb3a202b1a58386e6cbbd80fb199db7e6dc0814f9d52c25965bbdb812b
SHA1 hash: c4a49dcf6c6edff26b0514da03b155f2ac418a3c
MD5 hash: 8ce1041cce94737d4a36dbad504f4a78
humanhash: carpet-harry-nitrogen-violet
File name:8CE1041CCE94737D4A36DBAD504F4A78.exe
Download: download sample
Signature BlackNET
Create hunting rule
File size:77'312 bytes
First seen:2023-10-15 09:15:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'832 x AgentTesla, 19'767 x Formbook, 12'296 x SnakeKeylogger)
ssdeep 1536:hZuhD5z28TC268is9T8VPPQTgbSUPH4LU0tYwq:Gt19T89mgbSKHaUoYw
Threatray 3 similar samples on MalwareBazaar
TLSH T1BD73C44237ED6C92D0BD9AB4BB3353C1C7B8FD1A0512DA5D08C410AD9A7A747B981BE3
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon 414555c0d4d44503 (15 x njrat, 14 x BlackNET, 8 x Lucifer)
Reporter abuse_ch
Tags:BlackNet exe


Avatar
abuse_ch
BlackNET C2:
http://clearmu.top/blacknet/receive.php

Intelligence

File Origin
# of uploads :
1
# of downloads :
316
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
blacknet
Create hunting rule
ID:
1
File name:
8CE1041CCE94737D4A36DBAD504F4A78.exe
Verdict:
Malicious activity
Analysis date:
2023-10-15 09:17:01 UTC
Tags:
sinkhole blacknet trojan
Link:
https://app.any.run/tasks/302865c3-055e-45e2-8a6a-5744d254c38b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
BlackNET
Create hunting rule
Link:
https://www.capesandbox.com/analysis/454518/
Detection(s):
Win.Trojan.BlackNetRAT-7838854-0
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Win.Malware.Ursu-9794593-0
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ditekSHen.MALWARE.Win.Trojan.BlackNET.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a window
Using the Windows Management Instrumentation requests
Searching for synchronization primitives
DNS request
Sending an HTTP GET request
Launching a process
Creating a process with a hidden window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug anti-vm blacknet blackworm cmd control evasive explorer keylogger lolbin net packed powershell replace schtasks winnti worm
Link:
https://www.filescan.io/uploads/652bade75da218a42f4fe202/reports/b83a1ed6-ba13-4b1f-8c8b-0287171158d5/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/a7758f03d40f51f6c0b3f84e40fb7e5ae468fd315d6c4ea2b67b664d347fc98b
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4909b759-4f5c-412f-b93d-abab6314f2b7
Result
Threat name:
BlackNET
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1325888
Signature
.NET source code contains a sample name check
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes (.Net Source)
Disables Windows Defender (via service or powershell)
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies Windows Defender protection settings
Multi AV Scanner detection for submitted file
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: 1325888 Sample: s0o8PvrIgE.exe Startdate: 15/10/2023 Architecture: WINDOWS Score: 100 34 clearmu.top 2->34 38 Snort IDS alert for network traffic 2->38 40 Found malware configuration 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 11 other signatures 2->44 8 s0o8PvrIgE.exe 14 5 2->8         started        signatures3 process4 dnsIp5 36 clearmu.top 103.124.95.168, 49745, 80 NHANHOA-AS-VNNhanHoaSoftwarecompanyVN Viet Nam 8->36 46 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->46 48 Modifies Windows Defender protection settings 8->48 50 Disables Windows Defender (via service or powershell) 8->50 12 powershell.exe 23 8->12         started        14 powershell.exe 23 8->14         started        16 powershell.exe 21 8->16         started        18 11 other processes 8->18 signatures6 process7 process8 20 conhost.exe 12->20         started        22 conhost.exe 14->22         started        24 conhost.exe 16->24         started        26 conhost.exe 18->26         started        28 conhost.exe 18->28         started        30 conhost.exe 18->30         started        32 8 other processes 18->32
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a7758f03d40f51f6c0b3f84e40fb7e5ae468fd315d6c4ea2b67b664d347fc98b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a7758f03d40f51f6c0b3f84e40fb7e5ae468fd315d6c4ea2b67b664d347fc98b/
Threat name:
ByteCode-MSIL.Backdoor.Blacknet
Create hunting rule
Status:
Malicious
First seen:
2023-10-10 07:01:00 UTC
AV detection:
21 of 23 (91.30%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=u52y6a6ub5i7nqft7bheb636llsgr7jrlvwe5ivwpnte2nd7zgfq._file
Verdict:
malicious
Similar samples:
c105e8c3286a2589c4bbdaefbd266cd45be414d08854e48b4aa43104cc48c510
BlackNET
d403c9a7f0a68755b906c4890787db30c209c919932155e6cf4f0e944177be66
BlackNET
Result
Malware family:
blacknet
Create hunting rule
Score:
  10/10
Tags:
family:blacknet botnet:hacked evasion trojan
Link:
https://tria.ge/reports/231015-k8m9xafd62/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Windows security modification
BlackNET
Modifies Windows Defender Real-time Protection settings
Malware Config
C2 Extraction:
http://clearmu.top/blacknet
Unpacked files
SH256 hash:
a7758f03d40f51f6c0b3f84e40fb7e5ae468fd315d6c4ea2b67b664d347fc98b
MD5 hash:
8ce1041cce94737d4a36dbad504f4a78
SHA1 hash:
c4a49dcf6c6edff26b0514da03b155f2ac418a3c
Detections:
BlackNetRAT
Create hunting rule
win_delivery_check_g0
Create hunting rule
win_blacknet_rat_w0
Create hunting rule
Link:
https://www.unpac.me/results/55a86353-aa1e-4371-809a-822cb5ff92b0/
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/a7758f03d40f51f6c0b3f84e40fb7e5ae468fd315d6c4ea2b67b664d347fc98b

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:CN_disclosed_20180208_c
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Author:Florian Roth (Nextron Systems)
Description:Detects malware from disclosed CN malware set
Reference:https://twitter.com/cyberintproject/status/961714165550342146
Rule name:CN_disclosed_20180208_c_RID2E71
Create hunting rule
Author:Florian Roth
Description:Detects malware from disclosed CN malware set
Reference:https://twitter.com/cyberintproject/status/961714165550342146
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 artifcats 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 Defedner features
Rule name:MALWARE_Win_BlackNET
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Author:ditekSHen
Description:Detects BlackNET RAT
Rule name:MAL_Winnti_Sample_May18_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects malware sample from Burning Umbrella report - Generic Winnti Rule
Reference:https://401trg.pw/burning-umbrella/
Rule name:MAL_Winnti_Sample_May18_1_RID3003
Create hunting rule
Author:Florian Roth
Description:Detects malware sample from Burning Umbrella report - Generic Winnti Rule
Reference:https://401trg.pw/burning-umbrella/
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: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
Rule name:win_delivery_check_g0
Create hunting rule

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/454518/

Comments