MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e13a56c72598fdcf9974cf0b12dc39b72955e1fa77460f2145be84bd57239d84. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e13a56c72598fdcf9974cf0b12dc39b72955e1fa77460f2145be84bd57239d84
SHA3-384 hash: 7c2be48e432d64010787727117626b68aba85e73ad5c498b65cd6823d6807be11e55438bd88de6b972f91bab1b72ec48
SHA1 hash: 732835d083242818947a4f80d1ce6d336bbe7589
MD5 hash: 0f99a51b6cc691d2b0f75de18974c5c4
humanhash: sierra-jersey-leopard-pip
File name:0f99a51b6cc691d2b0f75de18974c5c4.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:1'446'912 bytes
First seen:2020-11-09 07:40:50 UTC
Last seen:2020-11-15 22:55:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:NzeOAXpFCObS+k2t31MxhwBD2wkZbLq0713etiEldiLdcYnNce0tWwhMH6FpfMHn:lO/1XYRpVpD4Wb4faWpyPHl/kG
TLSH 1365414850AA238AD47333BD67743485C3B4DA5772E8C9D3029CBBB2EE9DC365B71A05
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore RAT C2:
swryijgrvcsgkopnmcdertvgdswbvmophtfdczxs.ydns.eu:2017 (192.253.246.136)

Intelligence

File Origin
# of uploads :
4
# of downloads :
80
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Trojan.DownLoader35.24065.11257.5031.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
Creating a file in the Program Files subdirectories
Creating a file in the %temp% directory
Launching a process
Deleting a recently created file
DNS request
Sending a custom TCP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
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
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/525958
Signature
.NET source code contains potential unpacker
Detected Nanocore Rat
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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 submitted file
Sigma detected: NanoCore
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 312068 Sample: S21Ji2TNug.exe Startdate: 09/11/2020 Architecture: WINDOWS Score: 100 53 Found malware configuration 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 Sigma detected: Scheduled temp file as task from temp location 2->57 59 9 other signatures 2->59 8 S21Ji2TNug.exe 1 6 2->8         started        12 dhcpmon.exe 5 2->12         started        14 S21Ji2TNug.exe 4 2->14         started        16 3 other processes 2->16 process3 file4 45 C:\Users\user\AppData\Roaming\...\vlc.exe, PE32 8->45 dropped 47 C:\Users\user\...\vlc.exe:Zone.Identifier, ASCII 8->47 dropped 49 C:\Users\user\AppData\...\S21Ji2TNug.exe.log, ASCII 8->49 dropped 63 Injects a PE file into a foreign processes 8->63 18 S21Ji2TNug.exe 1 16 8->18         started        23 dhcpmon.exe 12->23         started        25 S21Ji2TNug.exe 14->25         started        27 vlc.exe 16->27         started        signatures5 process6 dnsIp7 51 swryijgrvcsgkopnmcdertvgdswbvmophtfdczxs.ydns.eu 192.253.246.141, 2017, 49743 LEASEWEB-USA-NYC-11US United States 18->51 37 C:\Program Files (x86)\...\dhcpmon.exe, PE32 18->37 dropped 39 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 18->39 dropped 41 C:\Users\user\AppData\Local\...\tmpE269.tmp, XML 18->41 dropped 43 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 18->43 dropped 61 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->61 29 schtasks.exe 1 18->29         started        31 schtasks.exe 1 18->31         started        file8 signatures9 process10 process11 33 conhost.exe 29->33         started        35 conhost.exe 31->35         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e13a56c72598fdcf9974cf0b12dc39b72955e1fa77460f2145be84bd57239d84/
Threat name:
ByteCode-MSIL.Ransomware.TeslaCrypt
Create hunting rule
Status:
Malicious
First seen:
2020-11-08 23:31:48 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=4e5fnrzftd647gluz4frfxbzw4uvlyp2o5da6ikfx2cl2vzdtwca._file
Result
Malware family:
nanocore
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Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/201109-l7h8plqqva/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
NanoCore
Malware Config
C2 Extraction:
swryijgrvcsgkopnmcdertvgdswbvmophtfdczxs.ydns.eu:2017
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
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: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 e13a56c72598fdcf9974cf0b12dc39b72955e1fa77460f2145be84bd57239d84

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/779105/
  
Delivery method
Distributed via web download

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