MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9c997bb5941de96a571243b7621bf577514cdc9818eb79b1116601fc31f3a17b. 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



NanoCore


Vendor detections: 14


Intelligence 14 IOCs YARA 2 File information Comments

SHA256 hash: 9c997bb5941de96a571243b7621bf577514cdc9818eb79b1116601fc31f3a17b
SHA3-384 hash: 2c7cda778df7224379c5c6cbad9457b819bde7e88a5ad5c23b122e0ac19564ce21ed0ebcb6de088b52a9718cedfab387
SHA1 hash: fef0fa38b97ca8ed1153f14f44f92b5f1085e8e2
MD5 hash: 4b881adf43ffa62472e40e0f0c79b045
humanhash: september-florida-illinois-montana
File name:TT.exe
Download: download sample
Signature NanoCore
File size:621'056 bytes
First seen:2022-07-22 14:58:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:CCA31hjx8YaUcSoalV3ARjkJycAki48rCZwxT4mz7ZFNGd:2jxhaDAARjxki4vZ/mz7vod
Threatray 4'482 similar samples on MalwareBazaar
TLSH T112D4F16EB59BC953D1B48F3290D6E52A037D7E22DE73E34B39DA318745433E20A86247
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter James_inthe_box
Tags:exe NanoCore

Intelligence


File Origin
# of uploads :
1
# of downloads :
355
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
nanocore
ID:
1
File name:
TT.exe
Verdict:
Malicious activity
Analysis date:
2022-07-23 01:35:48 UTC
Tags:
rat nanocore trojan

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Nanocore
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 671808 Sample: TT.exe Startdate: 22/07/2022 Architecture: WINDOWS Score: 100 79 Snort IDS alert for network traffic 2->79 81 Multi AV Scanner detection for domain / URL 2->81 83 Malicious sample detected (through community Yara rule) 2->83 85 15 other signatures 2->85 8 TT.exe 7 2->8         started        12 TT.exe 4 2->12         started        14 dhcpmon.exe 2->14         started        16 dhcpmon.exe 2->16         started        process3 file4 67 C:\Users\user\AppData\...\vbqSlmYTDXL.exe, PE32 8->67 dropped 69 C:\Users\...\vbqSlmYTDXL.exe:Zone.Identifier, ASCII 8->69 dropped 71 C:\Users\user\AppData\Local\...\tmp432D.tmp, XML 8->71 dropped 73 C:\Users\user\AppData\Local\...\TT.exe.log, ASCII 8->73 dropped 89 Uses schtasks.exe or at.exe to add and modify task schedules 8->89 91 Adds a directory exclusion to Windows Defender 8->91 18 TT.exe 1 14 8->18         started        23 powershell.exe 21 8->23         started        25 schtasks.exe 1 8->25         started        27 powershell.exe 12->27         started        29 schtasks.exe 12->29         started        33 2 other processes 12->33 31 powershell.exe 14->31         started        35 2 other processes 14->35 37 3 other processes 16->37 signatures5 process6 dnsIp7 75 derananocore.ddns.net 141.98.6.128, 1187, 49759, 49760 CMCSUS Germany 18->75 77 192.168.2.1 unknown unknown 18->77 61 C:\Program Files (x86)\...\dhcpmon.exe, PE32 18->61 dropped 63 C:\Users\user\AppData\Roaming\...\run.dat, ISO-8859 18->63 dropped 65 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 18->65 dropped 87 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->87 39 schtasks.exe 1 18->39         started        41 schtasks.exe 18->41         started        43 conhost.exe 23->43         started        45 conhost.exe 25->45         started        47 conhost.exe 27->47         started        49 conhost.exe 29->49         started        51 conhost.exe 31->51         started        53 conhost.exe 35->53         started        55 conhost.exe 37->55         started        file8 signatures9 process10 process11 57 conhost.exe 39->57         started        59 conhost.exe 41->59         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-07-22 13:23:29 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Result
Malware family:
nanocore
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer suricata trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Checks computer location settings
NanoCore
suricata: ET MALWARE Possible NanoCore C2 60B
Malware Config
C2 Extraction:
derananocore.ddns.net:1187
194.87.84.135:1187
Unpacked files
SH256 hash:
39c2d879c57f07305ce60412dc8a88f02e51f1a14a06cc605768d1d7f5313807
MD5 hash:
db51fe170a9e5d6ec5429a2fbd9d0353
SHA1 hash:
e30a58125fc41322db6cf2ccb6a6d414ed379016
SH256 hash:
a2eca95b55074b91034795d1fd9192bfbef019678372ed974b1c84e9d0b58361
MD5 hash:
691fea795dc18d1ff1fa0f70a104556b
SHA1 hash:
9dcc2550bfb632656885bb7bc6f93c0f4a2abca1
SH256 hash:
8a21c49cf09f59ddcabbd98a530373f48bf17ba58c7f1ee8f012bb2218240a75
MD5 hash:
90b3c6e9fdf419756c0a7faf53e2892b
SHA1 hash:
8e0ab2a87b5339ed6d3d154aa2749cef9eda4615
SH256 hash:
ca4e3745f87ae419e10fa9dd15e9814f66a7dca601ae70bd3ae3b0b0781e9491
MD5 hash:
6491ab64072f34a6124f4cdf1d9bdd43
SHA1 hash:
78008e0c188d1732ebb5bbfe6d15892ebe32b1f7
SH256 hash:
9c997bb5941de96a571243b7621bf577514cdc9818eb79b1116601fc31f3a17b
MD5 hash:
4b881adf43ffa62472e40e0f0c79b045
SHA1 hash:
fef0fa38b97ca8ed1153f14f44f92b5f1085e8e2
Please note that we are no longer able to provide a coverage score for Virus Total.

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:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

  
Delivery method
Other

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