MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1c55b3c97920d56dddbc38e6ba3c5dcbc7f3072792915b51e146b3dd92b3f392. 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: 12


Intelligence 12 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1c55b3c97920d56dddbc38e6ba3c5dcbc7f3072792915b51e146b3dd92b3f392
SHA3-384 hash: 95964e2c023666884da60c5a0cf88947cdc964dc7311024e3dbd585238ca09f78827c6df5f46d47ee8ac1f62291861ca
SHA1 hash: 51a6d274b1283640e248431bd887ef1f170371f9
MD5 hash: 0e4551b1546fa898c55b2511d9fca86d
humanhash: spring-pip-butter-michigan
File name:0e4551b1546fa898c55b2511d9fca86d.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:873'472 bytes
First seen:2021-01-18 09:44:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 3f85ebb67bac58f72de974a91d40889a (5 x Formbook, 3 x RemcosRAT, 2 x AgentTesla)
ssdeep 12288:t8WvAMYGY5RFNBeU7vgTOzlNCe7pxXVJ9RkDvd3FReXJYcvkSBJnfgt6yPCD:t8W4T17vgKz97pxvwdeXDcrtY
Threatray 1'740 similar samples on MalwareBazaar
TLSH 7505DF25B880C032C07225354D78E2B2097EAD705A654A9FBBC82D7B7FB41D2763967B
Reporter abuse_ch
Tags:exe NanoCore nVpn RAT


Avatar
abuse_ch
NanoCore RAT C2:
185.140.53.183:1144

Hosted on nVpn:

% Information related to '185.140.53.0 - 185.140.53.255'

% Abuse contact for '185.140.53.0 - 185.140.53.255' is 'abuse@privacyfirst.sh'

inetnum: 185.140.53.0 - 185.140.53.255
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-EU
country: EU
admin-c: TPP15-RIPE
tech-c: TPP15-RIPE
org: ORG-TPP6-RIPE
status: ASSIGNED PA
mnt-by: PRIVACYFIRST-MNT
created: 2016-10-17T23:24:00Z
last-modified: 2020-11-06T23:02:44Z
source: RIPE

Intelligence

File Origin
# of uploads :
1
# of downloads :
200
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
0e4551b1546fa898c55b2511d9fca86d.exe
Verdict:
Malicious activity
Analysis date:
2021-01-18 09:49:22 UTC
Tags:
rat nanocore trojan stealer
Link:
https://app.any.run/tasks/f89c397c-a536-4384-93f9-d499b585719d

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/112543/
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Sending a UDP request
Creating a file in the %temp% subdirectories
Creating a file
Running batch commands
Creating a process with a hidden window
Launching a process
Unauthorized injection to a recently created process
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
Using the Windows Management Instrumentation requests
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Sending a TCP request to an infection source
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
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/583629
Signature
.NET source code contains potential unpacker
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)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 340851 Sample: 2owa3HlP0V.exe Startdate: 18/01/2021 Architecture: WINDOWS Score: 100 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 Multi AV Scanner detection for dropped file 2->42 44 8 other signatures 2->44 7 2owa3HlP0V.exe 2 2->7         started        10 dhcpmon.exe 1 2->10         started        process3 file4 34 C:\Users\user\AppData\Local\Temp\...\file.exe, PE32 7->34 dropped 12 2owa3HlP0V.exe 1 7->12         started        15 2owa3HlP0V.exe 7->15         started        17 dhcpmon.exe 1 10->17         started        19 dhcpmon.exe 10->19         started        process5 signatures6 48 Maps a DLL or memory area into another process 12->48 21 2owa3HlP0V.exe 1 12 12->21         started        26 dhcpmon.exe 3 17->26         started        process7 dnsIp8 36 185.140.53.183, 1144, 49716, 49719 DAVID_CRAIGGG Sweden 21->36 28 C:\Program Files (x86)\...\dhcpmon.exe, PE32 21->28 dropped 30 C:\Users\user\AppData\Roaming\...\run.dat, ISO-8859 21->30 dropped 32 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 21->32 dropped 46 Hides that the sample has been downloaded from the Internet (zone.identifier) 21->46 file9 signatures10
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1c55b3c97920d56dddbc38e6ba3c5dcbc7f3072792915b51e146b3dd92b3f392/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-01-18 09:45:07 UTC
AV detection:
13 of 45 (28.89%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=drk3hslzedkw3xn4hdtlupc5zpd7gbzhskivwupbi2z53evt6oja._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
08639e98cf6c1379bb93b438681073d604ccbe57401153404885b4a090becb25
NanoCore
17b4666d69c4c82a89ee9208dfe8ebb84e3f7acdd81dfb2320ed00efcce33134
NanoCore
5b474ca6fc8158bd6f14d53bca8962f25db3392dfe324f49ddf376610bd785e4
NanoCore
984c95ea87e7b059a566bc304bd8bd9cdfc041c3fa03e66c70e16765c22676b2
NanoCore
c54deb9627b2dbaa9a3dac0298baf8417d7379c969ad76cee8450afe5d317dc1
NanoCore
d64a4482514be4bb53344b4712d850bb5ad28bd589a5cf3f4d2d966d2ea9ef65
NanoCore
ddaaa650d42caaed5ddd7c307b986cdccfc25bcb84c7a4f29f9fddd26add4135
NanoCore
e4fc20492ed4f4750766382f6578d84f38bf680646eb6b5193c5733925941f67
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ea6b74e2f0364ce1b058b8f5d7c078c3f47cb61a546976a5d56e0378c029892c
NanoCore
fe437d43f7133fadd1f6737840d626ba30d61eb8e983072b16175dccd7f011c1
NanoCore
+ 1'730 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/210118-hf8k8gvw3a/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
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
Unpacked files
SH256 hash:
1c55b3c97920d56dddbc38e6ba3c5dcbc7f3072792915b51e146b3dd92b3f392
MD5 hash:
0e4551b1546fa898c55b2511d9fca86d
SHA1 hash:
51a6d274b1283640e248431bd887ef1f170371f9
Link:
https://www.unpac.me/results/ba077738-0304-47f9-9286-582ae31fccbb/
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/1c55b3c97920d56dddbc38e6ba3c5dcbc7f3072792915b51e146b3dd92b3f392

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 1c55b3c97920d56dddbc38e6ba3c5dcbc7f3072792915b51e146b3dd92b3f392

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/969707/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/112543/
  
URLhaus
https://urlhaus.abuse.ch/url/969960/

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