MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 22221b72f894bb076ead64d8e6c09daf40692586a2b9f3409d91ae72c0a001ee. 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: 7


Intelligence 7 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 22221b72f894bb076ead64d8e6c09daf40692586a2b9f3409d91ae72c0a001ee
SHA3-384 hash: dcc5a1982501d6166c65a0a8a95fcdd7b3534f76df9c3a893b32af1184aded316886b6cba6769a7c527ed128df64837e
SHA1 hash: 2d122725fd3d1a72f6a71ad62c5f454045cb7358
MD5 hash: 417b32eb6296b9e55cd7c8c3ca97afb4
humanhash: river-johnny-carpet-hotel
File name:BULK VESSEL CONTRACT_N0 914-20.pdf.scr
Download: download sample
Signature NanoCore
Create hunting rule
File size:84'712 bytes
First seen:2020-10-14 16:29:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 1536:00sVXe+Xd7g4B6SoFXkkWcqssnvkshYUf:QO+4eZh
Threatray 1'140 similar samples on MalwareBazaar
TLSH 8E834056320DDF5EDA71033A38A390A735E4548FA337C7209FE72AD698766402F2B917
Reporter abuse_ch
Tags:NanoCore RAT scr


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: zmta01.tradeindia.com
Sending IP: 14.140.162.138
From: Nguyen@sumitomochemicals.com
Subject: BULK VESSEL OF 250MT APPROVED CONTRACT
Attachment: BULK VESSEL CONTRACT_N0 914-20.pdf.lzh (contains "BULK VESSEL CONTRACT_N0 914-20.pdf.scr")

Intelligence

File Origin
# of uploads :
1
# of downloads :
123
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/70952/
Detection(s):
SecuriteInfo.com.Artemis417B32EB6296.12988.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a process with a hidden window
Sending a UDP request
DNS request
Adding an access-denied ACE
Unauthorized injection to a recently created process
Creating a file
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
Connection attempt
Sending a TCP request to an infection source
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Enabling autorun
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/491492
Signature
.NET source code contains potential unpacker
Connects to a pastebin service (likely for C&C)
Creates an undocumented autostart registry key
Creates autostart registry keys with suspicious names
Creates multiple autostart registry keys
Detected Nanocore Rat
Drops PE files to the startup folder
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hides threads from debuggers
Initial sample is a PE file and has a suspicious name
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: Suspicious Double Extension
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 298303 Sample: BULK VESSEL CONTRACT_N0 914... Startdate: 14/10/2020 Architecture: WINDOWS Score: 100 64 hastebin.com 2->64 74 Found malware configuration 2->74 76 Malicious sample detected (through community Yara rule) 2->76 78 Multi AV Scanner detection for submitted file 2->78 82 9 other signatures 2->82 8 BULK VESSEL CONTRACT_N0 914-20.pdf.exe 18 4 2->8         started        13 BULK VESSEL CONTRACT_N0 914-20.pdf.exe 2 2->13         started        15 BULK VESSEL CONTRACT_N0 914-20.pdf.exe 2->15         started        17 4 other processes 2->17 signatures3 80 Connects to a pastebin service (likely for C&C) 64->80 process4 dnsIp5 70 hastebin.com 104.24.127.89, 443, 49725, 49741 CLOUDFLARENETUS United States 8->70 60 C:\...\BULK VESSEL CONTRACT_N0 914-20.pdf.exe, PE32 8->60 dropped 62 BULK VESSEL CONTRA...exe:Zone.Identifier, ASCII 8->62 dropped 86 Creates an undocumented autostart registry key 8->86 88 Creates autostart registry keys with suspicious names 8->88 90 Creates multiple autostart registry keys 8->90 19 BULK VESSEL CONTRACT_N0 914-20.pdf.exe 1 9 8->19         started        24 timeout.exe 1 8->24         started        26 WerFault.exe 23 9 8->26         started        92 Hides threads from debuggers 13->92 94 Injects a PE file into a foreign processes 13->94 28 BULK VESSEL CONTRACT_N0 914-20.pdf.exe 13->28         started        30 timeout.exe 13->30         started        72 104.24.126.89, 443, 49745 CLOUDFLARENETUS United States 15->72 32 timeout.exe 15->32         started        34 timeout.exe 17->34         started        36 timeout.exe 17->36         started        38 2 other processes 17->38 file6 signatures7 process8 dnsIp9 66 194.5.97.18, 2322, 49738, 49739 DANILENKODE Netherlands 19->66 68 127.0.0.1 unknown unknown 19->68 54 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 19->54 dropped 56 C:\Program Files (x86)\...\dhcpmon.exe, PE32 19->56 dropped 84 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->84 40 conhost.exe 24->40         started        58 BULK VESSEL CONTRA... 914-20.pdf.exe.log, ASCII 28->58 dropped 42 conhost.exe 30->42         started        44 conhost.exe 32->44         started        46 conhost.exe 34->46         started        48 conhost.exe 36->48         started        50 conhost.exe 38->50         started        52 conhost.exe 38->52         started        file10 signatures11 process12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/22221b72f894bb076ead64d8e6c09daf40692586a2b9f3409d91ae72c0a001ee/
Threat name:
ByteCode-MSIL.Trojan.Scarsi
Create hunting rule
Status:
Malicious
First seen:
2020-10-14 07:11:26 UTC
AV detection:
17 of 29 (58.62%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=eirbw4xyss5qo3vnmtmonqe5v5agsjmguk47gqe5sgxhfqfaahxa._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
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NanoCore
+ 1'130 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
evasion trojan keylogger stealer spyware family:nanocore persistence
Link:
https://tria.ge/reports/201014-7n1kp7r7r6/
Behaviour
Delays execution with timeout.exe
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
Checks whether UAC is enabled
Drops startup file
Modifies WinLogon for persistence
NanoCore
Malware Config
C2 Extraction:
194.5.97.18:2322
127.0.0.1:2322
Unpacked files
SH256 hash:
22221b72f894bb076ead64d8e6c09daf40692586a2b9f3409d91ae72c0a001ee
MD5 hash:
417b32eb6296b9e55cd7c8c3ca97afb4
SHA1 hash:
2d122725fd3d1a72f6a71ad62c5f454045cb7358
Link:
https://www.unpac.me/results/1da3605a-addc-4889-9d81-b808aaa333c1/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/22221b72f894bb076ead64d8e6c09daf40692586a2b9f3409d91ae72c0a001ee

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.

Malspam

NanoCore

rar 4ba6d1999efdc302195117b3719272bf5a94ec7e84d67190cbeaa79b3b27fcde

NanoCore

Executable exe 22221b72f894bb076ead64d8e6c09daf40692586a2b9f3409d91ae72c0a001ee

(this sample)

  
Dropped by
MD5 5a1da652f9cdaa77c1bb21fa1506569d
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 4ba6d1999efdc302195117b3719272bf5a94ec7e84d67190cbeaa79b3b27fcde
Cape
Cape
https://www.capesandbox.com/analysis/70952/

Comments