MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9d41101cd1d384aa0fb3b2bf1ae720af44623bb3bcf6ccd9697a88489801eb1b. 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: 9


Intelligence 9 IOCs 1 YARA 6 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 9d41101cd1d384aa0fb3b2bf1ae720af44623bb3bcf6ccd9697a88489801eb1b
SHA3-384 hash: 57bab35bbef929e6aee54cdef6dfb2e1c4bcd367c2248e91fdfab9d3061753a6d7413a5d3b6ca460209f04c0a525336c
SHA1 hash: 3e7228d6d8e664c18e7f7e4ffe4b0845ff97cc1b
MD5 hash: adc177e2f5d7228446d98dcb388da1c9
humanhash: yankee-seventeen-washington-robert
File name:HSBC Payment Transfer CopyPDF.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:330'927 bytes
First seen:2021-04-19 03:55:23 UTC
Last seen:2021-04-19 04:44:02 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ea4e67a31ace1a72683a99b80cf37830 (70 x Formbook, 63 x GuLoader, 54 x Loki)
ssdeep 6144:FPXafW5i6uU16HfiUdExYrulYAUJblVeVpNyCbXRJSBm:c2+ffVuHommCF0w
Threatray 1'752 similar samples on MalwareBazaar
TLSH C96412206661C8E3C2DB437125F6025287E7922A1AF1A70BA74CCFFABC479D2517F691
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
79.134.225.118:8709

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
79.134.225.118:8709 https://threatfox.abuse.ch/ioc/8926/

Intelligence

File Origin
# of uploads :
2
# of downloads :
138
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
HSBC Payment Transfer CopyPDF.exe
Verdict:
Malicious activity
Analysis date:
2021-04-19 03:57:29 UTC
Tags:
rat nanocore
Link:
https://app.any.run/tasks/48eeae83-903f-4bc2-af6e-e532b2d3cc03

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/138181/
Detection(s):
SecuriteInfo.com.Troj.Kryptik-VJ.28763.7049.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a file
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
Launching a process
Deleting a recently created file
DNS request
Using the Windows Management Instrumentation requests
Sending a UDP request
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/686038
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Contains functionality to prevent local Windows debugging
Detected Nanocore Rat
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Executable has a suspicious name (potential lure to open the executable)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
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
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)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 391967 Sample: HSBC Payment Transfer CopyPDF.exe Startdate: 19/04/2021 Architecture: WINDOWS Score: 100 63 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->63 65 Found malware configuration 2->65 67 Malicious sample detected (through community Yara rule) 2->67 69 16 other signatures 2->69 8 HSBC Payment Transfer CopyPDF.exe 19 2->8         started        12 dhcpmon.exe 17 2->12         started        14 HSBC Payment Transfer CopyPDF.exe 17 2->14         started        16 dhcpmon.exe 17 2->16         started        process3 file4 51 C:\Users\user\AppData\Local\...\x8jhsg4r.dll, PE32 8->51 dropped 73 Maps a DLL or memory area into another process 8->73 18 HSBC Payment Transfer CopyPDF.exe 1 13 8->18         started        53 C:\Users\user\AppData\Local\...\x8jhsg4r.dll, PE32 12->53 dropped 23 dhcpmon.exe 3 12->23         started        55 C:\Users\user\AppData\Local\...\x8jhsg4r.dll, PE32 14->55 dropped 25 HSBC Payment Transfer CopyPDF.exe 3 14->25         started        57 C:\Users\user\AppData\Local\...\x8jhsg4r.dll, PE32 16->57 dropped 27 dhcpmon.exe 2 16->27         started        29 BackgroundTransferHost.exe 19 16->29         started        signatures5 process6 dnsIp7 59 gentle.duckdns.org 79.134.225.118, 49716, 49719, 49723 FINK-TELECOM-SERVICESCH Switzerland 18->59 61 192.168.2.1 unknown unknown 18->61 39 C:\Program Files (x86)\...\dhcpmon.exe, PE32 18->39 dropped 41 C:\Users\user\AppData\Roaming\...\run.dat, data 18->41 dropped 43 C:\Users\user\AppData\Local\...\tmp23A2.tmp, XML 18->43 dropped 45 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 18->45 dropped 71 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->71 31 schtasks.exe 1 18->31         started        33 schtasks.exe 1 18->33         started        47 C:\Users\user\AppData\...\dhcpmon.exe.log, ASCII 23->47 dropped 49 C:\...\HSBC Payment Transfer CopyPDF.exe.log, ASCII 25->49 dropped file8 signatures9 process10 process11 35 conhost.exe 31->35         started        37 conhost.exe 33->37         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/9d41101cd1d384aa0fb3b2bf1ae720af44623bb3bcf6ccd9697a88489801eb1b/
Gathering data
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=tvarahgr2ockud5twk7rvzzav5cgeo5txt3mzwljpkeergab5mnq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
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NanoCore
+ 1'742 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/210419-9tjrab5jqs/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
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
Loads dropped DLL
NanoCore
Malware Config
C2 Extraction:
gentle.duckdns.org:8709
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/9d41101cd1d384aa0fb3b2bf1ae720af44623bb3bcf6ccd9697a88489801eb1b

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/138181/

Comments


Avatar
a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-04-19 04:00:18 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [C0032.001] Data Micro-objective::CRC32::Checksum
1) [C0026.002] Data Micro-objective::XOR::Encode Data
4) [C0046] File System Micro-objective::Create Directory
5) [C0048] File System Micro-objective::Delete Directory
6) [C0047] File System Micro-objective::Delete File
7) [C0049] File System Micro-objective::Get File Attributes
8) [C0051] File System Micro-objective::Read File
9) [C0050] File System Micro-objective::Set File Attributes
10) [C0052] File System Micro-objective::Writes File
11) [E1510] Impact::Clipboard Modification
12) [C0036.004] Operating System Micro-objective::Create Registry Key::Registry
13) [C0036.002] Operating System Micro-objective::Delete Registry Key::Registry
14) [C0036.003] Operating System Micro-objective::Open Registry Key::Registry
15) [C0036.005] Operating System Micro-objective::Query Registry Key::Registry
16) [C0036.006] Operating System Micro-objective::Query Registry Value::Registry
17) [C0017] Process Micro-objective::Create Process
18) [C0038] Process Micro-objective::Create Thread