MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 64f7f22452241592c6dc0e2c8e0f2cf44b52da13f9330e8c73211eb8e2d27906. 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: 13


Intelligence 13 IOCs YARA 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 64f7f22452241592c6dc0e2c8e0f2cf44b52da13f9330e8c73211eb8e2d27906
SHA3-384 hash: 821303233c213b6a113c1e7b6522a3c812dbdbf87bd8e16ed15e892fa0aa08a0b379c7eab95240d54fec6a0c10c29fb9
SHA1 hash: 1df45f7e7bd186db6ce3e0ba2828df7d006cce6a
MD5 hash: d0b86cae284be980712f0db432a66dad
humanhash: purple-idaho-neptune-robin
File name:D0B86CAE284BE980712F0DB432A66DAD.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:1'302'464 bytes
First seen:2024-02-17 14:40:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 12e12319f1029ec4f8fcbed7e82df162 (389 x DCRat, 52 x RedLineStealer, 51 x Formbook)
ssdeep 24576:MTbBv5rUl4oO7RJVxWoJ3MTGtR8B/hIdNCXYzJc:OBwl+T/WoJ3MTGoB/hWC
TLSH T10155BE91FA4FC4B0F0222475CA339AF3A16E6D20F62489677256BE3EB9F4341515372B
TrID 89.0% (.EXE) WinRAR Self Extracting archive (4.x-5.x) (265042/9/39)
3.5% (.EXE) Win64 Executable (generic) (10523/12/4)
2.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
1.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.5% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon 6a6a6a7878786416 (3 x NanoCore)
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
192.169.69.26:64418

Intelligence

File Origin
# of uploads :
1
# of downloads :
397
Origin country :
NL NL
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/476596/
Detection(s):
Win.Dropper.Nanocore-10020728-0
Create hunting rule

SecuriteInfo.com.Trojan.GenericKD.38920448.13962.7593.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Searching for the window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file in the %temp% subdirectories
Creating a process from a recently created file
Running batch commands
Creating a process with a hidden window
Launching a process
Sending a UDP request
Creating a file
Enabling the 'hidden' option for files in the %temp% directory
Adding an access-denied ACE
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
Connection attempt to an infection source
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Query of malicious DNS domain
Sending a TCP request to an infection source
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm fingerprint installer lolbin nanocore overlay packed setupapi sfx shdocvw shell32
Link:
https://www.filescan.io/uploads/65d0c57f22703c3491a08a39/reports/16b854f4-b81f-4c83-b19c-c9e0fdfe9dbc/overview
Verdict:
Malicious
Labled as:
Trojan.Uztuby
Link:
https://www.hybrid-analysis.com/sample/64f7f22452241592c6dc0e2c8e0f2cf44b52da13f9330e8c73211eb8e2d27906
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.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/7e0c0043-4caa-4dff-922c-add40974a83f
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1393893
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Found API chain indicative of sandbox detection
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
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: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Sigma detected: NanoCore
Sigma detected: New RUN Key Pointing to Suspicious Folder
Sigma detected: Scheduled temp file as task from temp location
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: WScript or CScript Dropper
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses ipconfig to lookup or modify the Windows network settings
Uses schtasks.exe or at.exe to add and modify task schedules
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected AntiVM autoit script
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1393893 Sample: ywvkRzA4vQ.exe Startdate: 17/02/2024 Architecture: WINDOWS Score: 100 89 december2nd.ddns.net 2->89 91 december2n.duckdns.org 2->91 97 Multi AV Scanner detection for domain / URL 2->97 99 Found malware configuration 2->99 101 Malicious sample detected (through community Yara rule) 2->101 105 17 other signatures 2->105 12 ywvkRzA4vQ.exe 3 41 2->12         started        16 vfbiudj.xl.exe 1 2->16         started        18 vfbiudj.xl.exe 2->18         started        20 4 other processes 2->20 signatures3 103 Uses dynamic DNS services 91->103 process4 file5 77 C:\Users\user\AppData\Local\...\vfbiudj.xl, PE32 12->77 dropped 79 C:\Users\user\AppData\Local\Temp\...\xdqd.vbe, Unicode 12->79 dropped 117 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 12->117 22 wscript.exe 1 12->22         started        119 Multi AV Scanner detection for dropped file 16->119 121 Detected Nanocore Rat 16->121 123 Found API chain indicative of sandbox detection 16->123 25 RegSvcs.exe 16->25         started        125 Writes to foreign memory regions 18->125 127 Allocates memory in foreign processes 18->127 129 Injects a PE file into a foreign processes 18->129 27 RegSvcs.exe 18->27         started        29 conhost.exe 20->29         started        31 conhost.exe 20->31         started        33 conhost.exe 20->33         started        35 RegSvcs.exe 20->35         started        signatures6 process7 signatures8 107 Windows Scripting host queries suspicious COM object (likely to drop second stage) 22->107 37 cmd.exe 22->37         started        39 cmd.exe 1 22->39         started        42 cmd.exe 1 22->42         started        109 Detected Nanocore Rat 25->109 process9 signatures10 44 vfbiudj.xl 1 39 37->44         started        48 conhost.exe 37->48         started        111 Uses ipconfig to lookup or modify the Windows network settings 39->111 50 conhost.exe 39->50         started        52 ipconfig.exe 1 39->52         started        54 conhost.exe 42->54         started        56 ipconfig.exe 1 42->56         started        process11 file12 81 C:\Users\user\AppData\...\vfbiudj.xl.exe, PE32 44->81 dropped 83 C:\Users\user\AppData\Local\...\vfbiudj.xl, PE32 44->83 dropped 85 C:\Users\user\AppData\...\vfbiudj.xl.exe, PE32 44->85 dropped 87 2 other files (1 malicious) 44->87 dropped 131 Multi AV Scanner detection for dropped file 44->131 133 Detected Nanocore Rat 44->133 135 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 44->135 137 3 other signatures 44->137 58 RegSvcs.exe 1 11 44->58         started        signatures13 process14 dnsIp15 93 december2n.duckdns.org 192.169.69.26, 49734, 49735, 49736 WOWUS United States 58->93 95 december2nd.ddns.net 197.210.79.33, 64418 VCG-ASNG Nigeria 58->95 71 C:\Users\user\AppData\Roaming\...\run.dat, ISO-8859 58->71 dropped 73 C:\Users\user\AppData\Local\...\tmp22FC.tmp, XML 58->73 dropped 75 C:\Program Files (x86)\DNS Host\dnshost.exe, PE32 58->75 dropped 113 Uses schtasks.exe or at.exe to add and modify task schedules 58->113 115 Hides that the sample has been downloaded from the Internet (zone.identifier) 58->115 63 schtasks.exe 1 58->63         started        65 schtasks.exe 1 58->65         started        file16 signatures17 process18 process19 67 conhost.exe 63->67         started        69 conhost.exe 65->69         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/64f7f22452241592c6dc0e2c8e0f2cf44b52da13f9330e8c73211eb8e2d27906
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/64f7f22452241592c6dc0e2c8e0f2cf44b52da13f9330e8c73211eb8e2d27906/
Threat name:
Win32.Trojan.Uztuby
Create hunting rule
Status:
Malicious
First seen:
2024-02-13 11:33:00 UTC
File Type:
PE (Exe)
Extracted files:
58
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mt37ejcseqkzfrw4bywi4dzm6rfvfwqt7ezq5ddteeplrywspeda._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/240217-r2eshsgd76/
Behaviour
Creates scheduled task(s)
Gathers network information
Modifies registry class
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
Executes dropped EXE
Loads dropped DLL
NanoCore
Malware Config
C2 Extraction:
december2n.duckdns.org:64418
december2nd.ddns.net:64418
Unpacked files
SH256 hash:
7bf426c11ea43614ef02e5373de0e53f54e785342d56c13182daa2849e9e3776
MD5 hash:
92516c99ab73f54438bbed424a2f165f
SHA1 hash:
31d49d7d8424ac308a4c1d6b1e176f355a86d4e7
Detections:
AutoIT_Compiled
Create hunting rule
Link:
https://www.unpac.me/results/f6ac1049-78a5-4685-a7bd-3709028271f7/
Parent samples :
22b87205ec9b3ad2d29c4d48e8c895d72318a497b327ff7cab3ea0da5034e055
64f7f22452241592c6dc0e2c8e0f2cf44b52da13f9330e8c73211eb8e2d27906
7f24051d8ea086ac0d78f5cb8e0f127140aee0ec0ca7a9e3137dbae04b76dd70
a94efd2fd4a39e5412ae71262505321a76acccfbedd2b9aa0417721740be6bfd
da7842d0d6c33bc7faa51b5a0cb5cbb1d794091b79c4aa020166c2a7bd524b55
0ff02d4a400853d0569a43b93c05fcce01438ae71978eed25fd011e328a00a4f
SH256 hash:
64f7f22452241592c6dc0e2c8e0f2cf44b52da13f9330e8c73211eb8e2d27906
MD5 hash:
d0b86cae284be980712f0db432a66dad
SHA1 hash:
1df45f7e7bd186db6ce3e0ba2828df7d006cce6a
Link:
https://www.unpac.me/results/f6ac1049-78a5-4685-a7bd-3709028271f7/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/64f7f2245224/report/overview.html
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/64f7f22452241592c6dc0e2c8e0f2cf44b52da13f9330e8c73211eb8e2d27906

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:ach_NanoCore
Create hunting rule
Author:abuse.ch
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:malware_Nanocore_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Nanocore in memory
Reference:internal research
Rule name:MALWARE_Win_NanoCore
Create hunting rule
Author:ditekSHen
Description:Detects NanoCore
Rule name:nanocore_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:Nanocore_RAT_Feb18_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Nanocore RAT
Reference:Internal Research - T2T
Rule name:Nanocore_RAT_Feb18_1_RID2DF1
Create hunting rule
Author:Florian Roth
Description:Detects Nanocore RAT
Reference:Internal Research - T2T
Rule name:Nanocore_RAT_Gen_2
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detetcs the Nanocore RAT
Reference:https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Rule name:Nanocore_RAT_Gen_2_RID2D96
Create hunting rule
Author:Florian Roth
Description:Detetcs the Nanocore RAT
Reference:https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SelfExtractingRAR
Create hunting rule
Author:Xavier Mertens
Description:Detects an SFX archive with automatic script execution
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_Nanocore_d8c4e3c5
Create hunting rule
Author:Elastic Security
Rule name:win_nanocore_w0
Create hunting rule
Author:Kevin Breen <kevin@techanarchy.net>

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/476596/

Comments