MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2cc946f811083d61e8d5d5892188799086aec88c8f9a2dd68a3af4af2bc07e28. 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: 8


Intelligence 8 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2cc946f811083d61e8d5d5892188799086aec88c8f9a2dd68a3af4af2bc07e28
SHA3-384 hash: c239b2a3ab373b1cc164624780f4ee5d383675a3f825580ff91efe0e1d446f8976033fa233e42ce3c524b831715e6442
SHA1 hash: e65c975e3d9695ced6942e680e5d196038b88a5c
MD5 hash: d31f786df5bc5ab13a592e2fd3ef32b9
humanhash: california-carolina-mango-green
File name:PO-05218B.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:570'880 bytes
First seen:2020-08-27 08:10:11 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 12288:GHo/5nSmQC4DiPwx8mWtHDAEPNKdwoWnTIuZM5:GYlStwBH9N9nTIf
Threatray 1'116 similar samples on MalwareBazaar
TLSH 53C4028002BE8B14C5FE0FB568A931108BF6AD493CB6FB569D40F5952BF67C049A1F63
Reporter abuse_ch
Tags:exe NanoCore


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: webmail.cyber.net.pk
Sending IP: 203.101.175.37
From: karam@cyber.net.pk
Subject: RE: ***REQUEST FOR PI:TOP URGENT
Attachment: PO-05218B.exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
173
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/51677/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Using the Windows Management Instrumentation requests
Creating a file
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/452391
Signature
.NET source code contains potential unpacker
Binary contains a suspicious time stamp
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Detected Nanocore Rat
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
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 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: 278558 Sample: PO-05218B.exe Startdate: 27/08/2020 Architecture: WINDOWS Score: 100 69 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->69 71 Found malware configuration 2->71 73 Malicious sample detected (through community Yara rule) 2->73 75 12 other signatures 2->75 8 PO-05218B.exe 5 2->8         started        12 dhcpmon.exe 3 2->12         started        14 PO-05218B.exe 2 2->14         started        16 dhcpmon.exe 2->16         started        process3 file4 61 C:\Users\user\AppData\Roaming\bXgXpA.exe, PE32 8->61 dropped 63 C:\Users\user\AppData\Local\...\tmp3C52.tmp, XML 8->63 dropped 65 C:\Users\user\AppData\...\PO-05218B.exe.log, ASCII 8->65 dropped 79 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 8->79 81 Injects a PE file into a foreign processes 8->81 83 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 8->83 18 PO-05218B.exe 1 15 8->18         started        23 schtasks.exe 1 8->23         started        25 PO-05218B.exe 8->25         started        27 schtasks.exe 12->27         started        29 dhcpmon.exe 12->29         started        31 schtasks.exe 14->31         started        33 PO-05218B.exe 14->33         started        35 schtasks.exe 16->35         started        37 dhcpmon.exe 16->37         started        signatures5 process6 dnsIp7 67 ericgacia.hopto.org 185.244.30.23, 3421, 49713 DAVID_CRAIGGG Netherlands 18->67 55 C:\Program Files (x86)\...\dhcpmon.exe, PE32 18->55 dropped 57 C:\Users\user\AppData\Roaming\...\run.dat, data 18->57 dropped 59 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 18->59 dropped 77 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->77 39 schtasks.exe 1 18->39         started        41 schtasks.exe 1 18->41         started        43 conhost.exe 23->43         started        45 conhost.exe 27->45         started        47 conhost.exe 31->47         started        49 conhost.exe 35->49         started        file8 signatures9 process10 process11 51 conhost.exe 39->51         started        53 conhost.exe 41->53         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2cc946f811083d61e8d5d5892188799086aec88c8f9a2dd68a3af4af2bc07e28/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2020-08-27 08:11:06 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=fteun6arba6wd2gv2wesdcdzscdk5semr6nc3vukhl2k6k6apyua._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
1e0640a5975ce7260ddb68118389c76efc0fbbd791bcf62a3280f116a4ef4f66
NanoCore
4d13350ebf3d38475a0a4a8c223fe6c06e00af3585eb499f60e29639b3944d3f
NanoCore
5fd2a9f7370fb2395eba599c52c1a8297d2e5074dea8122e181a3be762b0fac2
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6cef6b24f9c34ef5503ed6ba52ded7847882e7599bd39954ff9d3409042eeb74
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6eb10ca3e8026756f417b8e04510f768c28175817c73be8f21514dfb186d687f
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708e8ea4397b44ad8e1ea8ef53b0697dec1e09b6c454c7bf4654120e04a903f8
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756fde810887452ab2533283973f2e582df198988bcafde9f20dc85e35f4d5c4
NanoCore
819b7cdae5437e09dddc2263080df829d2e8ba725f4364bfddf0cd10eb848692
NanoCore
be240aed297970b0e97f46ce8964784645c8bfeb7b4ffc451ab7857b7df8438f
NanoCore
ea4115e347193aa868162072e3db30d9652650aa2915726aa83d91beb202b9bb
NanoCore
+ 1'106 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
evasion trojan keylogger stealer spyware family:nanocore persistence
Link:
https://tria.ge/reports/200827-z5zmnse1va/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
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
Maps connected drives based on registry
Checks BIOS information in registry
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
NanoCore
Malware Config
C2 Extraction:
ericgacia.hopto.org:3421
185.244.30.23:3421
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Farheyt
Score:
0.80
Link:
https://yomi.yoroi.company/submissions/2cc946f811083d61e8d5d5892188799086aec88c8f9a2dd68a3af4af2bc07e28

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

Executable exe 2cc946f811083d61e8d5d5892188799086aec88c8f9a2dd68a3af4af2bc07e28

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/51677/

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