MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b5575afc7d8aad3e43a1ce65d616f0fdf18aaba23a0d9e6b56b75030778e3124. 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: b5575afc7d8aad3e43a1ce65d616f0fdf18aaba23a0d9e6b56b75030778e3124
SHA3-384 hash: eeb0601c66c1db8276f64f09456464fe47b7b0ecb073fabb3e6d07bf13fe6c5eacf0e40e9653b7931f21d03de2a0713b
SHA1 hash: 57da1c05306d1e3e03b3baf249ba711e675fccdf
MD5 hash: e3dbe503c1a843672eb279de3184cb63
humanhash: cardinal-mars-pizza-july
File name:MY CV.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:1'250'816 bytes
First seen:2021-03-03 19:47:13 UTC
Last seen:2021-03-03 21:38:16 UTC
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:Uy+4ZBw6rq7WsU/zbVa9phJtAOlhACI9wZt3GsoFdcsCzNat/YN4DgLTFt5TMN9K:UixFbVmr9h/I9+Jp8VtC4wFt5Y1k
Threatray 1'619 similar samples on MalwareBazaar
TLSH 2A457C151AD8AB2BE07E9B7409A1410883F5F551E723D73EBCC455D64E32B83CF07AAA
Reporter TeamDreier
Tags:NanoCore

Intelligence

File Origin
# of uploads :
2
# of downloads :
213
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
MY CV.exe
Verdict:
Malicious activity
Analysis date:
2021-03-03 19:51:43 UTC
Tags:
rat nanocore
Link:
https://app.any.run/tasks/2277062e-95fc-4fa8-afc2-1a55d5f284c3

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/122109/
Detection(s):
SecuriteInfo.com.Trojan.Win32.Save.a.19772.18336.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Result
Verdict:
UNKNOWN
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/626674
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
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)
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 AntiVM_3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 362321 Sample: MY CV.exe Startdate: 03/03/2021 Architecture: WINDOWS Score: 100 66 Found malware configuration 2->66 68 Malicious sample detected (through community Yara rule) 2->68 70 Multi AV Scanner detection for dropped file 2->70 72 11 other signatures 2->72 8 MY CV.exe 7 2->8         started        11 MY CV.exe 4 2->11         started        13 dhcpmon.exe 5 2->13         started        15 dhcpmon.exe 2->15         started        process3 file4 58 C:\Users\user\AppData\Roaming\BpCKumuy.exe, PE32 8->58 dropped 60 C:\Users\user\AppData\Local\...\tmp5C73.tmp, XML 8->60 dropped 62 C:\Users\user\AppData\Local\...\MY CV.exe.log, ASCII 8->62 dropped 17 MY CV.exe 1 12 8->17         started        22 schtasks.exe 1 8->22         started        34 3 other processes 8->34 24 schtasks.exe 11->24         started        36 4 other processes 11->36 26 schtasks.exe 13->26         started        28 dhcpmon.exe 13->28         started        30 schtasks.exe 15->30         started        32 dhcpmon.exe 15->32         started        process5 dnsIp6 64 79.134.225.69, 2525, 49737, 49741 FINK-TELECOM-SERVICESCH Switzerland 17->64 54 C:\Program Files (x86)\...\dhcpmon.exe, PE32 17->54 dropped 56 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 17->56 dropped 74 Hides that the sample has been downloaded from the Internet (zone.identifier) 17->74 38 schtasks.exe 1 17->38         started        40 schtasks.exe 1 17->40         started        42 conhost.exe 22->42         started        44 conhost.exe 24->44         started        46 conhost.exe 26->46         started        48 conhost.exe 30->48         started        file7 signatures8 process9 process10 50 conhost.exe 38->50         started        52 conhost.exe 40->52         started       
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b5575afc7d8aad3e43a1ce65d616f0fdf18aaba23a0d9e6b56b75030778e3124/
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2021-03-03 19:48:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
127
AV detection:
20 of 47 (42.55%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wvlvv7d5rkwt4q5bzzs5mfxq7xyyvk5chigz422ww5ida54ogesa._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
258856f05819789b47e0bed58b1df479976a355cd30b953b23f9e2f5d286578a
NanoCore
2acf6c2398a12dc97ff2ceec4f348ed6338c4aafb2dcfeb24856cf8526d12a9d
NanoCore
4ab0583ffd51ef40c7531a93f294c16dfbcfaa1daf13835b8bd231c269a780c8
NanoCore
4f0035201ba7a3a536727862b8ac8dbf389038c5af1674ff7a982190fed1e30b
NanoCore
644a0403a3c8254a3846b8c07aa7fdeb2cfe21aa5630ca3100949869f60ae407
NanoCore
6a4ecef563225ed9892ff403374d704be5e3b4242ae9f08d624325e83fd22276
NanoCore
db591a08743176655e567ddffcbbd79b9e2e31feadc1feb54a0200296a93d53d
NanoCore
e26e07749118e8284c28e50553c62bdbe327234b801ffdf2eedb8663444aa459
NanoCore
f3ac633354efc183e1705dd9e042d39b62208735f6f9e83534fb21c9f32b5d70
NanoCore
f4bf592fde78af7ed0b06166ac8265d7b65a2457b9a61f12c2e3a4fad641ac19
NanoCore
+ 1'609 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/210303-qmgfmenppn/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
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:
79.134.225.69:2525
Unpacked files
SH256 hash:
f9d949d2f56c449c5d346bb93ed04d38426f563b022dd179ae330dab46682c3b
MD5 hash:
871e23d748ba756eaab5777708f250f8
SHA1 hash:
c9816d4ab38541aaab9aa3eab7cb4898d0b72e4a
Link:
https://www.unpac.me/results/66d0cb7f-1618-44a4-8ade-83d1c1dbc3ff/
SH256 hash:
b5575afc7d8aad3e43a1ce65d616f0fdf18aaba23a0d9e6b56b75030778e3124
MD5 hash:
e3dbe503c1a843672eb279de3184cb63
SHA1 hash:
57da1c05306d1e3e03b3baf249ba711e675fccdf
Link:
https://www.unpac.me/results/66d0cb7f-1618-44a4-8ade-83d1c1dbc3ff/
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/b5575afc7d8aad3e43a1ce65d616f0fdf18aaba23a0d9e6b56b75030778e3124

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.

Cape
Cape
https://www.capesandbox.com/analysis/122109/

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