MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 09c6d22f7e6d1fdfa1083f407bcf408e4e41fa854d94e4337e41b18f059ac08b. 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: 10


Intelligence 10 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 09c6d22f7e6d1fdfa1083f407bcf408e4e41fa854d94e4337e41b18f059ac08b
SHA3-384 hash: c93ad0e6ad772bd495e6edfd6c7c5bd6df184b9e870a669f29ea832edd7be516080b952755f3efbe562c3e56c4831d2a
SHA1 hash: 143947c5f14b3e49ee135d27580beebbb53aafaf
MD5 hash: 62bd179b7d3701a25f7cc6264fa81fb1
humanhash: triple-paris-low-stream
File name:CN-Invoice-XXXXX9808-1901114328710090.pdf.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:553'984 bytes
First seen:2021-06-02 07:37:46 UTC
Last seen:2021-06-02 09:00:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:AlTylEBJby33zIsnwBZmfOoqSMBGlWgEr8fI4+UlYySi7g8:gT3BJDy+sfOQy+lK4z+Umyv7
Threatray 3 similar samples on MalwareBazaar
TLSH 95C423AA3ABA8973C60E6B35C8B5052177BF3131A431EB0F6F8CF2E965671C50161397
Reporter GovCERT_CH
Tags:exe NanoCore

Intelligence

File Origin
# of uploads :
2
# of downloads :
149
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
CN-Invoice-XXXXX9808-1901114328710090.pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-06-02 06:04:39 UTC
Tags:
rat nanocore
Link:
https://app.any.run/tasks/67ea1a95-4cd5-420c-85ee-021f02b60392

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/163948/
Detection(s):
SecuriteInfo.com.PWS-FCZI62BD179B7D37.21665.14475.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
Connection attempt
Forced shutdown of a system process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Unauthorized injection to a system process
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.
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/795684
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Sigma detected: NanoCore
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 428080 Sample: CN-Invoice-XXXXX9808-190111... Startdate: 02/06/2021 Architecture: WINDOWS Score: 100 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 Multi AV Scanner detection for dropped file 2->58 60 12 other signatures 2->60 8 CN-Invoice-XXXXX9808-1901114328710090.pdf.exe 6 2->8         started        12 dhcpmon.exe 4 2->12         started        14 dhcpmon.exe 3 2->14         started        16 MSBuild.exe 2 2->16         started        process3 file4 46 C:\Users\user\AppData\Roaming\zVgmAyes.exe, PE32 8->46 dropped 48 C:\Users\user\AppData\Local\...\tmpD622.tmp, XML 8->48 dropped 50 CN-Invoice-XXXXX98...8710090.pdf.exe.log, ASCII 8->50 dropped 62 Uses schtasks.exe or at.exe to add and modify task schedules 8->62 64 Writes to foreign memory regions 8->64 66 Injects a PE file into a foreign processes 8->66 18 MSBuild.exe 1 11 8->18         started        22 schtasks.exe 1 8->22         started        24 MSBuild.exe 8->24         started        26 conhost.exe 12->26         started        28 conhost.exe 14->28         started        30 conhost.exe 16->30         started        signatures5 process6 dnsIp7 52 annapro.linkpc.net 217.138.212.59, 54984 M247GB United Kingdom 18->52 42 C:\Users\user\AppData\Roaming\...\run.dat, data 18->42 dropped 44 C:\Program Files (x86)\...\dhcpmon.exe, PE32 18->44 dropped 32 schtasks.exe 1 18->32         started        34 schtasks.exe 1 18->34         started        36 conhost.exe 22->36         started        file8 process9 process10 38 conhost.exe 32->38         started        40 conhost.exe 34->40         started       
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/09c6d22f7e6d1fdfa1083f407bcf408e4e41fa854d94e4337e41b18f059ac08b/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-06-02 07:38:09 UTC
AV detection:
12 of 47 (25.53%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=bhdnel36nup57iiih5ahxt2arzhed6ufjwkoim36igyy6bm2ycfq._file
Verdict:
unknown
Similar samples:
3094ea643b6c2e4dc2172349bbc1ed3b0bf85e3354b6171bd9fbf2577c491267
NanoCore
6c9b3cb473eafac739743f9f3c8be5bf671eeee602781a05c64fe7ff9b6e93fa
NanoCore
d710b2d7fe63379b5636ac91f74007678d81bd9528116cda02d1727a38eef191
NanoCore
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210602-14c4bq5stj/
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
NanoCore
Malware Config
C2 Extraction:
217.138.212.59:54984
annapro.linkpc.net:54984
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/09c6d22f7e6d1fdfa1083f407bcf408e4e41fa854d94e4337e41b18f059ac08b

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
Create hunting rule
Author:jeFF0Falltrades
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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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

Executable exe 09c6d22f7e6d1fdfa1083f407bcf408e4e41fa854d94e4337e41b18f059ac08b

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/163948/

Comments