MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f4dc1e741d3aef915ff984ff1346fc85ec3d37e9e89b275bb344e25c767751da. 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: 9


Intelligence 9 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f4dc1e741d3aef915ff984ff1346fc85ec3d37e9e89b275bb344e25c767751da
SHA3-384 hash: 5947e0a11b323773d3563d08575b34eaabb553f8974906d493d228919416bc4f137ace4c15ce7d594b959d41fae9c519
SHA1 hash: 46d803a7aec1e62f05b7f476bbca4bdc4008e5a7
MD5 hash: 16cd0bcebba87a0648278da93540eb50
humanhash: bulldog-washington-ack-seventeen
File name:16cd0bcebba87a0648278da93540eb50.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:820'736 bytes
First seen:2020-07-21 10:11:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 00cfe1cece4ca5ab4917a4bbdc80ffdc (10 x MassLogger, 6 x AgentTesla, 4 x NanoCore)
ssdeep 12288:owBUPwzUNE1UYSfrhzPKli+esLpzYHVhI/2W8fpK9EO/Y27dW5n6aEJhS9G:VwwMkUYMrhzPMeYsjZpYEOP705n6Vh
Threatray 2'689 similar samples on MalwareBazaar
TLSH 2E05BF1AE3D044F3F177263D9C1B9764AD29BE413D289E476BE82C0C9F39651383A1A7
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore RAT C2:
snup2020.hopto.org:1996

Intelligence

File Origin
# of uploads :
1
# of downloads :
76
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/30060/
Detection(s):
Win.Malware.Daqc-6598201-0
Create hunting rule

PUA.Win.Adware.Slugin-6803969-0
Create hunting rule

PUA.Win.Adware.Slugin-6840354-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Creating a file in the Program Files subdirectories
Creating a file in the %temp% directory
Deleting a recently created file
Connection attempt
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Enabling autorun with Startup directory
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/393025
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 248887 Sample: JqAk5keJWL.exe Startdate: 21/07/2020 Architecture: WINDOWS Score: 100 113 Found malware configuration 2->113 115 Malicious sample detected (through community Yara rule) 2->115 117 Multi AV Scanner detection for dropped file 2->117 119 10 other signatures 2->119 12 JqAk5keJWL.exe 2->12         started        15 wpasv.exe 2->15         started        17 wscript.exe 2->17         started        19 2 other processes 2->19 process3 signatures4 151 Writes to foreign memory regions 12->151 153 Allocates memory in foreign processes 12->153 155 Queues an APC in another process (thread injection) 12->155 157 Contains functionality to detect sleep reduction / modifications 12->157 21 notepad.exe 5 12->21         started        25 notepad.exe 2 15->25         started        27 nsheujf.exe 17->27         started        159 Maps a DLL or memory area into another process 19->159 29 notepad.exe 19->29         started        31 nsheujf.exe 19->31         started        33 nsheujf.exe 3 19->33         started        process5 file6 101 C:\Users\user\AppData\Roaming\...\nsheujf.exe, PE32 21->101 dropped 103 C:\Users\user\...\nsheujf.exe:Zone.Identifier, ASCII 21->103 dropped 143 Creates files in alternative data streams (ADS) 21->143 145 Drops VBS files to the startup folder 21->145 35 nsheujf.exe 21->35         started        38 nsheujf.exe 25->38         started        147 Maps a DLL or memory area into another process 27->147 149 Sample uses process hollowing technique 27->149 40 nsheujf.exe 27->40         started        42 nsheujf.exe 27->42         started        105 C:\Users\user\AppData\Roaming\...\win.vbs, ASCII 29->105 dropped 44 nsheujf.exe 29->44         started        46 nsheujf.exe 31->46         started        107 C:\Users\user\AppData\...\nsheujf.exe.log, ASCII 33->107 dropped signatures7 process8 signatures9 127 Multi AV Scanner detection for dropped file 35->127 129 Detected unpacking (changes PE section rights) 35->129 131 Detected unpacking (creates a PE file in dynamic memory) 35->131 135 3 other signatures 35->135 48 nsheujf.exe 1 15 35->48         started        53 nsheujf.exe 35->53         started        133 Maps a DLL or memory area into another process 38->133 55 nsheujf.exe 38->55         started        57 nsheujf.exe 38->57         started        59 nsheujf.exe 40->59         started        61 nsheujf.exe 46->61         started        63 nsheujf.exe 46->63         started        process10 dnsIp11 109 snup2020.hopto.org 41.190.31.38, 1996 EMTS-NIGERIA-ASNG Nigeria 48->109 111 194.5.97.22, 1996, 49724, 49725 DANILENKODE Netherlands 48->111 93 C:\Program Files (x86)\...\wpasv.exe, PE32 48->93 dropped 95 C:\Users\user\AppData\Roaming\...\run.dat, data 48->95 dropped 97 C:\Users\user\AppData\Local\...\tmpF723.tmp, XML 48->97 dropped 99 C:\...\wpasv.exe:Zone.Identifier, ASCII 48->99 dropped 121 Hides that the sample has been downloaded from the Internet (zone.identifier) 48->121 65 schtasks.exe 1 48->65         started        67 schtasks.exe 1 48->67         started        69 nsheujf.exe 55->69         started        123 Maps a DLL or memory area into another process 59->123 125 Sample uses process hollowing technique 59->125 file12 signatures13 process14 signatures15 72 conhost.exe 65->72         started        74 nsheujf.exe 65->74         started        76 nsheujf.exe 65->76         started        78 conhost.exe 67->78         started        141 Maps a DLL or memory area into another process 69->141 80 nsheujf.exe 69->80         started        82 nsheujf.exe 69->82         started        process16 process17 84 nsheujf.exe 72->84         started        87 nsheujf.exe 74->87         started        signatures18 137 Maps a DLL or memory area into another process 84->137 139 Sample uses process hollowing technique 84->139 89 nsheujf.exe 87->89         started        91 nsheujf.exe 87->91         started        process19
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f4dc1e741d3aef915ff984ff1346fc85ec3d37e9e89b275bb344e25c767751da/
Threat name:
Win32.Infostealer.Fareit
Create hunting rule
Status:
Malicious
First seen:
2020-07-21 10:13:05 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6tob45a5hlxzcx7zqt7rgrx4qxwd2n7j5cnsow5titrfy5txkhna._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
hawkeyekeylogger
Create hunting rule
Similar samples:
06cd18b13e77f513e826da358a65d6f61b05769ce830c8fb9d15b916c672ea61
NanoCore
366bac9db38e89bd47b0128bdf62a4f986d1d27449c12920744e157b819751f1
NanoCore
3874eba497e0b61949d0772430ce1df420e28777dba850a6033295212e9de9c5
NanoCore
7259675aad35bed593ec88a0f96263e182eaac06043f25df3362eb29186d2cd1
NanoCore
c6dacd6d13d4fc3761f548db8529d6d2a08b0894b26f148b8e8758fe721fb4cd
NanoCore
cc829675a0e11138d47b42b5c19e45403d7d73731aac0c97ca8b2a0e37a960f8
NanoCore
d968d93ec39951451366b025e043dcef49dffcf697e2f23a64bedf222c3ade55
NanoCore
de5da27d55060988faa9fb717e8b32e374bca6d86f7eb758c3b1aa062c5aa90b
NanoCore
f304855a11aedd539b9bdb686b1d5781e0d7080560f9520c6bda8586947b3285
NanoCore
ff5fb544251818945ba7b14fb0602d71188133caf7742871318291c91b474013
NanoCore
+ 2'679 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
upx evasion trojan keylogger stealer spyware family:nanocore persistence
Link:
https://tria.ge/reports/200721-pjv14zv3yx/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Creates scheduled task(s)
Suspicious behavior: MapViewOfSection
NTFS ADS
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Drops startup file
Loads dropped DLL
Executes dropped EXE
UPX packed file
NanoCore
Malware Config
C2 Extraction:
snup2020.hopto.org:1996
194.5.97.22:1996
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Unknown
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f4dc1e741d3aef915ff984ff1346fc85ec3d37e9e89b275bb344e25c767751da

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:Nanocore
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Nanocore in memory
Reference:internal research
Rule name:Nanocore_RAT_Feb18_1
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
Description:Detetcs the Nanocore RAT
Reference:https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
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.

Web download

NanoCore

Executable exe f4dc1e741d3aef915ff984ff1346fc85ec3d37e9e89b275bb344e25c767751da

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/410917/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/30060/

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