MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4e3d69c6a349cb94e4ab760758d6fc26607a4ec8729814c858553d25ca9b84d2. 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: 13


Intelligence 13 IOCs YARA 6 File information Comments
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SHA256 hash: 4e3d69c6a349cb94e4ab760758d6fc26607a4ec8729814c858553d25ca9b84d2
SHA3-384 hash: adca80248ebea0c1a3519c5a517296c77ee4c5ef2eb9a410628621be859a0f2f8d4c36d7b40ea9e399adac76c343651f
SHA1 hash: 74e113d32af333fc58c21a7c45b828f341b963df
MD5 hash: dfd64ed73bed3b9a4a7e6e61510d9129
humanhash: jersey-jig-oxygen-batman
File name:dfd64ed73bed3b9a4a7e6e61510d9129.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:995'328 bytes
First seen:2021-03-19 08:02:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:ddrg4ce4WiSwb96Ot43CvrFkffN1AURnTNl/doBfBcX9FkpjAykW8JfM9Vp8OuW3:r0pn6z9RnTu4t2prLOfA8OuW3
Threatray 1'649 similar samples on MalwareBazaar
TLSH 72259EA513171A76F1663AB41040F3B53BB0DEE5607AFAB19DD47CA3B8813C0A97AC74
Reporter abuse_ch
Tags:exe NanoCore RAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
205
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
dfd64ed73bed3b9a4a7e6e61510d9129.exe
Verdict:
Malicious activity
Analysis date:
2021-03-19 08:07:37 UTC
Tags:
rat nanocore
Link:
https://app.any.run/tasks/3b726263-2456-4eda-98af-eaa49924dbc2

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/125609/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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.
Malware family:
NanoCoreRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5a9bc3d5-0beb-4d08-885f-99cb3c1a10a4
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/645827
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
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 dropped file
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 AntiVM3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 371873 Sample: ZSzFrLdaqD.exe Startdate: 19/03/2021 Architecture: WINDOWS Score: 100 51 Found malware configuration 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 Antivirus detection for dropped file 2->55 57 13 other signatures 2->57 8 ZSzFrLdaqD.exe 3 2->8         started        12 ZSzFrLdaqD.exe 2 2->12         started        14 dhcpmon.exe 3 2->14         started        16 dhcpmon.exe 2 2->16         started        process3 file4 47 C:\Users\user\AppData\...\ZSzFrLdaqD.exe.log, ASCII 8->47 dropped 61 Uses schtasks.exe or at.exe to add and modify task schedules 8->61 63 Injects a PE file into a foreign processes 8->63 18 ZSzFrLdaqD.exe 1 14 8->18         started        23 ZSzFrLdaqD.exe 2 12->23         started        25 ZSzFrLdaqD.exe 12->25         started        27 dhcpmon.exe 2 14->27         started        29 dhcpmon.exe 2 16->29         started        signatures5 process6 dnsIp7 49 rhbavzcmkopdhunbsgwtfcvzcxgjhyegvbcnmgte.ydns.eu 46.243.233.25, 2486 M247GB Netherlands 18->49 39 C:\Program Files (x86)\...\dhcpmon.exe, PE32 18->39 dropped 41 C:\Users\user\AppData\Roaming\...\run.dat, ISO-8859 18->41 dropped 43 C:\Users\user\AppData\Local\...\tmpFDB5.tmp, XML 18->43 dropped 45 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 18->45 dropped 59 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->59 31 schtasks.exe 1 18->31         started        33 schtasks.exe 1 18->33         started        file8 signatures9 process10 process11 35 conhost.exe 31->35         started        37 conhost.exe 33->37         started       
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4e3d69c6a349cb94e4ab760758d6fc26607a4ec8729814c858553d25ca9b84d2/
Threat name:
ByteCode-MSIL.Trojan.Pwsx
Create hunting rule
Status:
Malicious
First seen:
2021-03-18 14:20:57 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
28 of 47 (59.57%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jy6wtrvdjhfzjzfloydvrvx4ezqhutwiokmbjscyku6slsu3qtja._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
258856f05819789b47e0bed58b1df479976a355cd30b953b23f9e2f5d286578a
NanoCore
2acf6c2398a12dc97ff2ceec4f348ed6338c4aafb2dcfeb24856cf8526d12a9d
NanoCore
4ab0583ffd51ef40c7531a93f294c16dfbcfaa1daf13835b8bd231c269a780c8
NanoCore
644a0403a3c8254a3846b8c07aa7fdeb2cfe21aa5630ca3100949869f60ae407
NanoCore
751b9d20eea57288317d00cfb81935ee3a39e49b5043c69ee4c49e6cac41d9fa
NanoCore
83a5d6da50195774a35e46a89d8d9854b4282ec5a3fffa02fa0f7c90d274117f
NanoCore
db591a08743176655e567ddffcbbd79b9e2e31feadc1feb54a0200296a93d53d
NanoCore
e26e07749118e8284c28e50553c62bdbe327234b801ffdf2eedb8663444aa459
NanoCore
f3ac633354efc183e1705dd9e042d39b62208735f6f9e83534fb21c9f32b5d70
NanoCore
fbdbd6b6c6cd7a2b07d771d9969e53689f3601bbf7355ee49138b07511b88df7
NanoCore
+ 1'639 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210319-pn8bxr1e2s/
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:
rhbavzcmkopdhunbsgwtfcvzcxgjhyegvbcnmgte.ydns.eu:2486
Unpacked files
SH256 hash:
2b43013edb5706a946f4e523a1a219b31fe2a7e05c48884c048882b3c1327655
MD5 hash:
b7159eb14fe565d4e233604b629bbd8a
SHA1 hash:
64f82c67e6c7cbc078141162a49bffcee3d9ebb9
Link:
https://www.unpac.me/results/727809a3-7d12-4875-b6f0-eff2f8be2e89/
SH256 hash:
4e3d69c6a349cb94e4ab760758d6fc26607a4ec8729814c858553d25ca9b84d2
MD5 hash:
dfd64ed73bed3b9a4a7e6e61510d9129
SHA1 hash:
74e113d32af333fc58c21a7c45b828f341b963df
Link:
https://www.unpac.me/results/727809a3-7d12-4875-b6f0-eff2f8be2e89/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4e3d69c6a349cb94e4ab760758d6fc26607a4ec8729814c858553d25ca9b84d2

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 4e3d69c6a349cb94e4ab760758d6fc26607a4ec8729814c858553d25ca9b84d2

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1075742/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/125609/

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