MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c92c63658f161a639482f7e150303a4c6648f9186a8601fff6d14af694815895. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c92c63658f161a639482f7e150303a4c6648f9186a8601fff6d14af694815895
SHA3-384 hash: e535653c70a376258a699b92fa96d7d01c86d225ff84f0637ca2eb0c87df04c151d05ae224cf52bee3223c27eda4542b
SHA1 hash: 4ccd8ee9eac5523d6082ca80c5274df1bb08b0c9
MD5 hash: bebb73849224c7f6bde59b08d46a1c14
humanhash: alaska-black-texas-fifteen
File name:DECEMBER QUOTATION REQUEST FOR FR12007POH0008_PO0000143_ETQ.scr
Download: download sample
Signature NanoCore
Create hunting rule
File size:1'071'104 bytes
First seen:2020-12-19 06:59:49 UTC
Last seen:2020-12-19 08:34:02 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:vXU72mRjD4ZbKICIbDpmTHhG9KTJ9KTr9KTJ1QNg7zffRZey:cjAZbKInbDpo1qQzfJZe
Threatray 1'601 similar samples on MalwareBazaar
TLSH D43502393684FF60D0B80637C8E1841023FDED19A322D67E5CD434AD9E62BFD9867A56
Reporter abuse_ch
Tags:NanoCore scr


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: host.usabestserver.com
Sending IP: 162.214.72.205
From: sales_vic@charmedleather.com
Subject: QUOTATION REQUEST
Attachment: DECEMBER QUOTATION REQUEST FOR FR12007POH0008_PO0000143_ETQ.uu (contains "DECEMBER QUOTATION REQUEST FOR FR12007POH0008_PO0000143_ETQ.scr")

Intelligence

File Origin
# of uploads :
2
# of downloads :
295
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
DECEMBER QUOTATION REQUEST FOR FR12007POH0008_PO0000143_ETQ.scr
Verdict:
Malicious activity
Analysis date:
2020-12-19 07:02:46 UTC
Tags:
rat nanocore
Link:
https://app.any.run/tasks/4d452e0d-ae46-4df4-b933-addc25f48702

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/108521/
Detection(s):
SecuriteInfo.com.Generic.mg.bebb73849224c7f6.29024.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Creating a process with a hidden window
Result
Gathering data
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/566741
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Detected Nanocore Rat
Hides that the sample has been downloaded from the Internet (zone.identifier)
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)
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 dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM_3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 332454 Sample: DECEMBER QUOTATION REQUEST ... Startdate: 19/12/2020 Architecture: WINDOWS Score: 100 44 Malicious sample detected (through community Yara rule) 2->44 46 Sigma detected: Scheduled temp file as task from temp location 2->46 48 Sigma detected: NanoCore 2->48 50 10 other signatures 2->50 7 DECEMBER QUOTATION REQUEST FOR FR12007POH0008_PO0000143_ETQ.exe 18 2->7         started        11 dhcpmon.exe 2->11         started        process3 file4 26 C:\Users\user\AppData\...\uyloxUFIroA.exe, PE32 7->26 dropped 28 C:\Users\...\uyloxUFIroA.exe:Zone.Identifier, ASCII 7->28 dropped 30 C:\Users\user\AppData\Local\...\tmpFA25.tmp, XML 7->30 dropped 32 DECEMBER QUOTATION...0000143_ETQ.exe.log, ASCII 7->32 dropped 52 Writes to foreign memory regions 7->52 54 Allocates memory in foreign processes 7->54 56 Injects a PE file into a foreign processes 7->56 13 RegSvcs.exe 1 10 7->13         started        18 schtasks.exe 1 7->18         started        20 RegSvcs.exe 7->20         started        22 RegSvcs.exe 7->22         started        signatures5 process6 dnsIp7 38 viceka.duckdns.org 193.109.78.38, 49718, 49719, 49720 SUPERSERVERSDATACENTERRU Russian Federation 13->38 40 127.0.0.1 unknown unknown 13->40 42 192.168.2.1 unknown unknown 13->42 34 C:\Users\user\AppData\Roaming\...\run.dat, data 13->34 dropped 36 C:\Program Files (x86)\...\dhcpmon.exe, PE32 13->36 dropped 58 Hides that the sample has been downloaded from the Internet (zone.identifier) 13->58 24 conhost.exe 18->24         started        file8 signatures9 process10
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c92c63658f161a639482f7e150303a4c6648f9186a8601fff6d14af694815895/
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=zewggzmpcynghfec67qvamb2jrter6iynkdad77w2ffpnfeblckq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
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02b60a23298127408b70ac29f643ffa7c0acaf3fe359cb2a1e44fd6eb9680c64
NanoCore
0cc36114a155515acdf192cbde8cc6f2eb5bfc833920075ee5deb156944371eb
NanoCore
287597fcffd11298b757ac806606000d8dd4c3c2641891c1932a1e76348d9922
NanoCore
4edb517cd43eef725ea3c5dfeadec190b933e408ec6f8de0d093c18a80e8bef8
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6108382b4bc5e21f527f5a61aacad821d4a3c9ed273d60c435c408e76512c221
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64fa98c6d88fdd55fa6c93b8ab2f08e6e5b3347b102651f86a9f9ac569e2a239
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85d558b0e019db854266458eef469e514e63ef6138367fc0d32f12ab21b57652
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90141bd6f0215103fb95009ef0336cbd17aa2e4e41ffa3aa2171f939234c0e32
NanoCore
953b28fd61cb8eb78e1fca699aead009a12bb5a0a6a8d42b0447cbe2bf828143
NanoCore
c919ec54980c11d415579d990d00df36d3a7e12641d15f24e0d5cdaf76d0123a
NanoCore
+ 1'591 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/201219-bnzpeb8ff6/
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
Drops file in Windows directory
Suspicious use of SetThreadContext
Adds Run key to start application
NanoCore
Malware Config
C2 Extraction:
viceka.duckdns.org:53285
127.0.0.1:53285
Unpacked files
SH256 hash:
55abf08a6a6ab7c7848a2bc0410d84befe6dcfa118336e2e4f1ee456a8009efc
MD5 hash:
6ce9761c3c3ae715d40a77b982d31dc9
SHA1 hash:
42a5a02eabe7d80d79408549e7686d4e44524361
Link:
https://www.unpac.me/results/7a21c7a3-67ba-444f-aca3-03c41f74faea/
SH256 hash:
c92c63658f161a639482f7e150303a4c6648f9186a8601fff6d14af694815895
MD5 hash:
bebb73849224c7f6bde59b08d46a1c14
SHA1 hash:
4ccd8ee9eac5523d6082ca80c5274df1bb08b0c9
Link:
https://www.unpac.me/results/7a21c7a3-67ba-444f-aca3-03c41f74faea/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.75
Link:
https://yomi.yoroi.company/submissions/c92c63658f161a639482f7e150303a4c6648f9186a8601fff6d14af694815895

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.

Malspam

NanoCore

rar 58520300a96381c2943219d0b34248117a9083914111573d917720c98725e267

NanoCore

Executable exe c92c63658f161a639482f7e150303a4c6648f9186a8601fff6d14af694815895

(this sample)

  
Dropped by
MD5 6b9b117eef704f905aa104769ce006fe
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 58520300a96381c2943219d0b34248117a9083914111573d917720c98725e267
Cape
Cape
https://www.capesandbox.com/analysis/108521/

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