MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cb6c181823fd61558c1e6cefa9f1634d1676984316caa071c24268df493d3629. 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: 8


Intelligence 8 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cb6c181823fd61558c1e6cefa9f1634d1676984316caa071c24268df493d3629
SHA3-384 hash: 12f39cde1289ad9a899749f101a5bf680cf631bafb9ec5b44f353ef2ef70db7f82645d72cf6d8b814a99f1583cbe12e6
SHA1 hash: d2151926026cd1bd0ad194657fa25b28a8a7c378
MD5 hash: 5e916c890e7e3db7f2d984170b7e19f7
humanhash: fourteen-island-queen-helium
File name:5e916c890e7e3db7f2d984170b7e19f7.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:211'368 bytes
First seen:2020-09-26 07:43:23 UTC
Last seen:2020-09-26 08:40:11 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 3072:LVZubatoNPQ3c4UhRAYGyBIU9gzWB+bRaLMPIlOixNbzsfmk:LPu+OhDAYGyiNTaH3L6F
Threatray 1'106 similar samples on MalwareBazaar
TLSH 3B24082266E8D209F4B32B75F872D1F106B2BE72D551C80F558C7E0FB57264088A97FA
Reporter abuse_ch
Tags:exe NanoCore RAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
192
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/66030/
Detection(s):
SecuriteInfo.com.Trojan.Siggen10.28569.17478.155.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a process with a hidden window
DNS request
Sending a custom TCP request
Adding an access-denied ACE
Creating a file
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
Creating a file in the %temp% directory
Deleting a recently created file
Sending a UDP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Connection attempt to an infection source
Unauthorized injection to a system process
Enabling autorun by creating a file
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/475763
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Detected Nanocore Rat
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hides threads from debuggers
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Sigma detected: Scheduled temp file as task from temp location
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 290332 Sample: EpNVlEoa60.exe Startdate: 26/09/2020 Architecture: WINDOWS Score: 100 54 hustlerman.ddns.net 2->54 64 Malicious sample detected (through community Yara rule) 2->64 66 Antivirus / Scanner detection for submitted sample 2->66 68 Sigma detected: Scheduled temp file as task from temp location 2->68 70 8 other signatures 2->70 9 EpNVlEoa60.exe 15 2 2->9         started        13 InstallUtil.exe 2 2->13         started        15 dhcpmon.exe 2 2->15         started        17 dhcpmon.exe 2->17         started        signatures3 process4 dnsIp5 60 paste.nrecom.net 9->60 62 server5.nrecom.net 37.120.174.218, 443, 49687 NETCUP-ASnetcupGmbHDE Germany 9->62 74 Writes to foreign memory regions 9->74 76 Allocates memory in foreign processes 9->76 78 Hides threads from debuggers 9->78 80 Injects a PE file into a foreign processes 9->80 19 InstallUtil.exe 1 11 9->19         started        24 WerFault.exe 20 9 9->24         started        26 timeout.exe 1 9->26         started        28 InstallUtil.exe 9->28         started        30 conhost.exe 13->30         started        32 conhost.exe 15->32         started        34 conhost.exe 17->34         started        signatures6 process7 dnsIp8 56 hustlerman.ddns.net 79.134.225.5, 1603, 49688, 49690 FINK-TELECOM-SERVICESCH Switzerland 19->56 46 C:\Users\user\AppData\Roaming\...\run.dat, ISO-8859 19->46 dropped 48 C:\Users\user\AppData\Local\Temp\tmp7D6.tmp, XML 19->48 dropped 50 C:\Program Files (x86)\...\dhcpmon.exe, PE32 19->50 dropped 72 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->72 36 schtasks.exe 1 19->36         started        38 schtasks.exe 1 19->38         started        58 192.168.2.1 unknown unknown 24->58 52 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 24->52 dropped 40 conhost.exe 26->40         started        file9 signatures10 process11 process12 42 conhost.exe 36->42         started        44 conhost.exe 38->44         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cb6c181823fd61558c1e6cefa9f1634d1676984316caa071c24268df493d3629/
Threat name:
ByteCode-MSIL.Backdoor.NanoBot
Create hunting rule
Status:
Malicious
First seen:
2020-09-25 10:01:50 UTC
AV detection:
20 of 29 (68.97%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=znwbqgbd7vqvlda6ntx2t4ldjulhngcdc3fka4ocijun6sj5gyuq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
013e28fb236b074fae60d3252c602924a886ad4c311310dbb19f85ba1c5e2425
NanoCore
483338a656b2a7bf095d9bf3ca950419f217acdb9812b3d0013ccc13785f305e
NanoCore
5adb192079fbc16f4631d3e5c894d9bec1ed384e7be85742c4f076760eb64a0f
NanoCore
5e3140ed7841e6893114a0d4d9c5ee239736449aaba20d2c8939a051e5ef21c5
NanoCore
6cef6b24f9c34ef5503ed6ba52ded7847882e7599bd39954ff9d3409042eeb74
NanoCore
74e0eb3b39810ae2847ba2238bcf8fc178c187d7b783f865c262117d933f6d4c
NanoCore
a9352a90a15c864ae05d1d1138aff00094883dc44afffc471e837e46fe3eb24e
NanoCore
ae9576df43dd4f5e8d48c6774e7bbbd1a6baaad219c4022dd49af9fdaec57d61
NanoCore
c4b8370a2f9b30c900f56ba9b2a405f5d4febde0515c52647af81b79eaf7febf
NanoCore
cff3d5fedc8fdab09a7b27524a02503b53f4f7378ab0a09219701d3b9c3e68f4
NanoCore
+ 1'096 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
keylogger trojan stealer spyware family:nanocore persistence
Link:
https://tria.ge/reports/200926-dv368tahes/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Drops file in Program Files directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
NanoCore
Malware Config
C2 Extraction:
hustlerman.ddns.net:1603
Unpacked files
SH256 hash:
cb6c181823fd61558c1e6cefa9f1634d1676984316caa071c24268df493d3629
MD5 hash:
5e916c890e7e3db7f2d984170b7e19f7
SHA1 hash:
d2151926026cd1bd0ad194657fa25b28a8a7c378
Link:
https://www.unpac.me/results/477bfb3f-6895-49b5-bc8b-808aaae0ce58/
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: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 cb6c181823fd61558c1e6cefa9f1634d1676984316caa071c24268df493d3629

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/66030/
  
URLhaus
https://urlhaus.abuse.ch/url/447161/
  
Delivery method
Distributed via web download

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