MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4132de9c0b4c5c604bed2261b999848573b44a5208482a4847c9b6b2f2ff729b. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4132de9c0b4c5c604bed2261b999848573b44a5208482a4847c9b6b2f2ff729b
SHA3-384 hash: 609dbacb162686e5e399e5a6c65e7118768428a07ca9c3e64c7a275c8bf1921b50cc58a9987bb7fad701256c831698e0
SHA1 hash: 51f2a7ded59166960a8520f33a67fc08da605d60
MD5 hash: 4983256b0364b1232f6196a49856ef72
humanhash: florida-shade-yellow-jupiter
File name:2020101508898,pdf.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:628'224 bytes
First seen:2020-10-15 11:14:12 UTC
Last seen:2020-10-15 12:16:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:0z0Ue7573EgFIfCPjNLBypFUdtH8gbG7NyDx1Kh4UIQaI/h4DpUL:0Y1NiCPjNrdtXgix1KKPI
Threatray 1'141 similar samples on MalwareBazaar
TLSH 3BD4E156B384A78EC17F8E7258225C1097F1FDBE5A13C24B6CD730E806BF79646522A3
Reporter abuse_ch
Tags:exe geo KOR NanoCore nVpn RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: vps.frofr-atibu.com
Sending IP: 45.95.169.149
From: Yuri Yoon <hjpark@stglobal.co.kr>
Subject: 지불 사본
Attachment: 2020101508898,pdf.zip (contains "2020101508898,pdf.exe")

NanoCore RAT C2:
billionaire.ddns.net:3734 (185.165.153.245)

Pointing to nVpn:

% Information related to '185.165.153.0 - 185.165.153.255'

% Abuse contact for '185.165.153.0 - 185.165.153.255' is 'abuse@privacyfirst.sh'

inetnum: 185.165.153.0 - 185.165.153.255
remarks: This prefix is assigned to The PRIVACYFIRST Project, which
remarks: operates infrastructure jointly used by various VPN service
remarks: providers. We have a very strong focus on privacy and freedom.
remarks: In case of abuse, we encourage all international law enforcement
remarks: agencies to get in touch with our abuse contact. Due to the fact
remarks: that we keep no logs of user activities and only share data when
remarks: it is legally required under our jurisdiction, it is very unlikely
remarks: for a demand of user information to be successful. Still, that
remarks: should not deter you from reaching out.
netname: PRIVACYFIRST-AT
country: AT
admin-c: TPP15-RIPE
tech-c: TPP15-RIPE
org: ORG-TPP6-RIPE
status: ASSIGNED PA
mnt-by: PRIVACYFIRST-MNT
created: 2019-10-18T12:14:26Z
last-modified: 2020-10-07T21:42:48Z
source: RIPE

Intelligence

File Origin
# of uploads :
2
# of downloads :
95
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/71274/
Detection(s):
SecuriteInfo.com.Trojan.Nanocore.23.5097.10187.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Launching a process
Creating a process with a hidden window
Result
Threat name:
NanoCore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/492178
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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 domain / URL
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
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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: 298540 Sample: 2020101508898,pdf.exe Startdate: 15/10/2020 Architecture: WINDOWS Score: 100 43 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->43 45 Multi AV Scanner detection for domain / URL 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 13 other signatures 2->49 8 2020101508898,pdf.exe 7 2->8         started        12 MSBuild.exe 4 2->12         started        process3 file4 29 C:\Users\user\AppData\...\BUIeGuAHhxXK.exe, PE32 8->29 dropped 31 C:\Users\...\BUIeGuAHhxXK.exe:Zone.Identifier, ASCII 8->31 dropped 33 C:\Users\user\AppData\Local\...\tmpB993.tmp, XML 8->33 dropped 35 C:\Users\user\...\2020101508898,pdf.exe.log, ASCII 8->35 dropped 51 Writes to foreign memory regions 8->51 53 Allocates memory in foreign processes 8->53 55 Injects a PE file into a foreign processes 8->55 14 MSBuild.exe 13 8->14         started        19 schtasks.exe 1 8->19         started        21 conhost.exe 12->21         started        signatures5 process6 dnsIp7 39 billionaire.ddns.net 185.165.153.245, 3734, 49727 DAVID_CRAIGGG Netherlands 14->39 37 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 14->37 dropped 41 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->41 23 schtasks.exe 1 14->23         started        25 conhost.exe 19->25         started        file8 signatures9 process10 process11 27 conhost.exe 23->27         started       
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4132de9c0b4c5c604bed2261b999848573b44a5208482a4847c9b6b2f2ff729b/
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2020-10-15 01:03:00 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=iezn5haljrogas7nejq3tgmeqvz3isssbbecuschzg3lf4x7oknq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
093313195ab55c462e616e41f5b20e0f876d69e1941d34cd05302c82d8eb20e7
NanoCore
15f16edea0ca4f3b0a43c1b4e232a30294bd25c3f4971cdaccabcfda45dfa9c9
NanoCore
17976b00ac98edbfed8a513caeb5d757c334ed3e1f94712212b5b7a4ac1f226e
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229f370eda3af7728124b9dc82d7fe89821d28e4be766c81996c140496a5ee45
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2313dde5b84de43d82c693ccd65fdc2efd1321cc0ea3d8c901094805935eb0f1
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430596618928471c2bb2df11155686033c916418c1792875f329ae8156debfaa
NanoCore
4d0aea3c86fee5ae6722f98e65e622017f16725ede141d7ee95c20262080c61a
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6cd7b1c8e3b06ac38919582b023c8204f07277d17b612a98ddb0cc574e2aa991
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98cfc2f76ee8cefd9aa0b9be4c317800223f93ffb6e63577e8a9466693585515
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b47fd439f5f744bb6e3dead9204f558d2536dd82ceab7d1df41dbbe184fa9c2f
NanoCore
+ 1'131 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
keylogger trojan stealer spyware family:nanocore
Link:
https://tria.ge/reports/201015-stfwlgvr42/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
NanoCore
Malware Config
C2 Extraction:
billionaire.ddns.net:3734
Unpacked files
SH256 hash:
4132de9c0b4c5c604bed2261b999848573b44a5208482a4847c9b6b2f2ff729b
MD5 hash:
4983256b0364b1232f6196a49856ef72
SHA1 hash:
51f2a7ded59166960a8520f33a67fc08da605d60
Link:
https://www.unpac.me/results/a08e8e6e-eda3-4060-945d-888b37d1186c/
SH256 hash:
7add54c57ebead1ced0fdd86f1e8fbfb34d9c3f42ed0a8f1dd01c2d7fbdd22df
MD5 hash:
c92b6d01725e94682d4d1f8722d08f90
SHA1 hash:
22fedb39b80a6909343bcdf5ba846e8435841155
Detections:
win_nanocore_w0
Create hunting rule
Link:
https://www.unpac.me/results/a08e8e6e-eda3-4060-945d-888b37d1186c/
Parent samples :
4132de9c0b4c5c604bed2261b999848573b44a5208482a4847c9b6b2f2ff729b
1c42bd094eeb6df10d17cb2fc16a7e167e38ee01d273f7c31ddf4775e015d59c
02a438010c995c0587226655a3e2420af6d60c1f09696753c5ef28c7b72c1f4d
a85f88d35b117dc6b63fc3ab6f9e6ca21a605032ddaf343f1ad6b32b86aa344e
8192d560e89e235f4734cf4ad8fa3a9a91abd7eb83b589c4d471efc5d6361f1d
ec230920e758500130af04a1e4231e62ffcbdfab7e548c865e84fb037ad42eb0
9a010009db0cef15b26b8c0698dcabc904aff124a484334bbba646c6f0a3084e
509de021147bf9903bae027143b68b38d92901161454cd8058ad56e39fcd143b
f001ad70af35a98383e07a785b7a6298fe510b1713633aecedc4d3429f6b39b5
ea8ea37e535102a446a8c2f88ef6a3c9277e996a32144449cde729bda80e16f2
SH256 hash:
51083221aca6448566fdae01fb1cef1e7c78d88c868aa7f807e72384d7368d4e
MD5 hash:
3da46a203470a108ebdc7a5270d2ca7d
SHA1 hash:
2c8ed7b865b336b25376d56c2938272d7a027efa
Link:
https://www.unpac.me/results/a08e8e6e-eda3-4060-945d-888b37d1186c/
SH256 hash:
4b05ae19f063b74e9f9abdabe1a5941529495acf9f1cf099c67cfc900ee61821
MD5 hash:
477b88a764e1bbcb5858ef9522af2e02
SHA1 hash:
5b26300e7236a0d10e98025a9882bbb9d6ff975a
Link:
https://www.unpac.me/results/a08e8e6e-eda3-4060-945d-888b37d1186c/
SH256 hash:
a04c35aabb65eb8ca098a98e516e808a763a1b8e93b27894b68811ee30380d6f
MD5 hash:
8181fa325da094983a386d97134dc550
SHA1 hash:
cb4f71a7e6ff3ef32ed6f8429774e20aa3df2b11
Link:
https://www.unpac.me/results/a08e8e6e-eda3-4060-945d-888b37d1186c/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4132de9c0b4c5c604bed2261b999848573b44a5208482a4847c9b6b2f2ff729b

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

zip e7cc4faaa2c9412df88a09f12d3eb5b8670715891d4424b4d22e64628ef64cff

NanoCore

Executable exe 4132de9c0b4c5c604bed2261b999848573b44a5208482a4847c9b6b2f2ff729b

(this sample)

  
Dropped by
MD5 eaa80cc54d23173035c7acf3c05ae50b
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/71274/
  
Dropped by
SHA256 e7cc4faaa2c9412df88a09f12d3eb5b8670715891d4424b4d22e64628ef64cff

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