MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1c42bd094eeb6df10d17cb2fc16a7e167e38ee01d273f7c31ddf4775e015d59c. 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: 11


Intelligence 11 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1c42bd094eeb6df10d17cb2fc16a7e167e38ee01d273f7c31ddf4775e015d59c
SHA3-384 hash: ac21fcb7ed90d937fd3ab43702dfc4ea8d1ebd5a8d2f5e458b99dbc0f7e6ee0ad7374e4e916cf849dad87602eb08bc29
SHA1 hash: 0592a92b11ebdbb0b24f093d69be88baf394aac4
MD5 hash: d631fc784a817b038050901c9210535e
humanhash: stairway-eleven-eighteen-four
File name:2020101408898,pdf.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:543'232 bytes
First seen:2020-10-15 12:14:19 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'643 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 6144:W9iJr0TPrv4JW0Hvs4Kd0bEKsbUq5uCPMQZR/iuIfHVhyufYqVNzF90N0zDhFpIy:W9iBmP+VBAKQlQxYMu4gqMi1r
Threatray 1'156 similar samples on MalwareBazaar
TLSH 0FC4F11073C64F60E43D97B724B1613013FAAE899667EA2D7F8D739D1673B806212E1B
Reporter abuse_ch
Tags:exe NanoCore nVpn RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: vps.frofr-atibu.com
Sending IP: 45.95.169.149
From: Edgardo Cruz <beatriz@sanjorge.com.pe>
Subject: copia del pago
Attachment: 2020101408898,pdf.zip (contains "2020101408898,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 :
1
# of downloads :
111
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/71370/
Detection(s):
SecuriteInfo.com.ArtemisD631FC784A81.13551.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a process with a hidden window
Sending a UDP request
Creating a window
Launching a process
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/492320
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Detected Nanocore Rat
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 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 dnsIp2 2 Behavior Graph ID: 298655 Sample: 2020101408898,pdf.exe Startdate: 15/10/2020 Architecture: WINDOWS Score: 100 40 billionaire.ddns.net 2->40 46 Malicious sample detected (through community Yara rule) 2->46 48 Antivirus detection for dropped file 2->48 50 Antivirus / Scanner detection for submitted sample 2->50 52 13 other signatures 2->52 9 2020101408898,pdf.exe 7 2->9         started        13 MSBuild.exe 4 2->13         started        signatures3 process4 file5 32 C:\Users\user\AppData\...\qnkDCdcEdG.exe, PE32 9->32 dropped 34 C:\Users\...\qnkDCdcEdG.exe:Zone.Identifier, ASCII 9->34 dropped 36 C:\Users\user\AppData\Local\...\tmp3D90.tmp, XML 9->36 dropped 38 C:\Users\user\...\2020101408898,pdf.exe.log, ASCII 9->38 dropped 54 Writes to foreign memory regions 9->54 56 Allocates memory in foreign processes 9->56 58 Injects a PE file into a foreign processes 9->58 15 MSBuild.exe 10 9->15         started        20 schtasks.exe 1 9->20         started        22 conhost.exe 13->22         started        signatures6 process7 dnsIp8 42 billionaire.ddns.net 185.165.153.245, 3734, 49746, 49747 DAVID_CRAIGGG Netherlands 15->42 30 C:\Users\user\AppData\Roaming\...\run.dat, data 15->30 dropped 44 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->44 24 schtasks.exe 1 15->24         started        26 conhost.exe 20->26         started        file9 signatures10 process11 process12 28 conhost.exe 24->28         started       
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1c42bd094eeb6df10d17cb2fc16a7e167e38ee01d273f7c31ddf4775e015d59c/
Threat name:
ByteCode-MSIL.Spyware.Stelega
Create hunting rule
Status:
Malicious
First seen:
2020-10-15 05:57:04 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=drbl2cko5nw7cdixzmx4c2t6cz7dr3qb2jz7pqy535dxlyav2woa._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
093313195ab55c462e616e41f5b20e0f876d69e1941d34cd05302c82d8eb20e7
NanoCore
15f16edea0ca4f3b0a43c1b4e232a30294bd25c3f4971cdaccabcfda45dfa9c9
NanoCore
229f370eda3af7728124b9dc82d7fe89821d28e4be766c81996c140496a5ee45
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27bec5b0582b3447dfbf1e2cca8afae778532caa31b449bebb434d5468cbe3b7
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290fb785e3b59196b2c3d474822f7dd18eaa9d13526c19b9f5dfd51ba3cb4756
NanoCore
430596618928471c2bb2df11155686033c916418c1792875f329ae8156debfaa
NanoCore
4d0aea3c86fee5ae6722f98e65e622017f16725ede141d7ee95c20262080c61a
NanoCore
7ca2e77373e52431f89441df57949f8ed73f5d3cf5873f964b4c00446770d5fe
NanoCore
98cfc2f76ee8cefd9aa0b9be4c317800223f93ffb6e63577e8a9466693585515
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a00a6fe53b7e8d3f5ab9d8b8ab2119c9d3fcbe2b41a1fad6b29ed37e493a2ba0
NanoCore
+ 1'146 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/201015-81xtlglz2e/
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:
1c42bd094eeb6df10d17cb2fc16a7e167e38ee01d273f7c31ddf4775e015d59c
MD5 hash:
d631fc784a817b038050901c9210535e
SHA1 hash:
0592a92b11ebdbb0b24f093d69be88baf394aac4
Link:
https://www.unpac.me/results/7774461c-e4fc-469b-aea5-d8a5fe2e9a25/
SH256 hash:
7add54c57ebead1ced0fdd86f1e8fbfb34d9c3f42ed0a8f1dd01c2d7fbdd22df
MD5 hash:
c92b6d01725e94682d4d1f8722d08f90
SHA1 hash:
22fedb39b80a6909343bcdf5ba846e8435841155
Detections:
win_nanocore_w0
Create hunting rule
Link:
https://www.unpac.me/results/7774461c-e4fc-469b-aea5-d8a5fe2e9a25/
Parent samples :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 hash:
72c82be4e0099279748c438536e07845d7b1684783962f4dd4724a6fe4625912
MD5 hash:
7a73ec1127e27bd9492045d6beafff76
SHA1 hash:
61f1307175d4344f2c13dd1492998f5ed48aa0a3
Link:
https://www.unpac.me/results/7774461c-e4fc-469b-aea5-d8a5fe2e9a25/
SH256 hash:
bac5797bde4b2810766a40d95bcdb825ac5b395fcbadd139daa19a44a6cdc049
MD5 hash:
a92cc1f6e0a2742350dfda6726db14c0
SHA1 hash:
e5404e3ed46498deb8ad8966a774540c2b8e9c1e
Link:
https://www.unpac.me/results/7774461c-e4fc-469b-aea5-d8a5fe2e9a25/
SH256 hash:
f7af86e9e61703d77745d92e3a03017a29acbbaea145a84faef5fecd92c9c8eb
MD5 hash:
9247e38856feb00beecbe5d276e0d7ee
SHA1 hash:
fe0071c7df353c2ef7d548cedb807cb28bc67c5c
Link:
https://www.unpac.me/results/7774461c-e4fc-469b-aea5-d8a5fe2e9a25/
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/1c42bd094eeb6df10d17cb2fc16a7e167e38ee01d273f7c31ddf4775e015d59c

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 3da8e2d57a272e5c00a406cbcb418867e208cefde4ac9a736b586186ade640c1

NanoCore

Executable exe 1c42bd094eeb6df10d17cb2fc16a7e167e38ee01d273f7c31ddf4775e015d59c

(this sample)

  
Dropped by
MD5 66bd6192a52c89754f4f9072bba3c116
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/71370/
  
Dropped by
SHA256 3da8e2d57a272e5c00a406cbcb418867e208cefde4ac9a736b586186ade640c1

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