MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 240159852a07d731922811db6650130ff93a374e2128e72bf2b7cf8b52fe551e. 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: 240159852a07d731922811db6650130ff93a374e2128e72bf2b7cf8b52fe551e
SHA3-384 hash: cf410822f88ec94639ac6c90f5ed698467d8530955a8c8c32bf6369c1d6340a0023159d9a13c4d35b2247ad01d7e45b1
SHA1 hash: 4653182de7be95a630fb98bde3232049daee816c
MD5 hash: c51d8463c81efb97b01612fb123a5487
humanhash: delta-harry-magazine-undress
File name:RAHIM TRADING CO. FOR IMP.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:694'272 bytes
First seen:2020-08-12 14:40:53 UTC
Last seen:2020-08-12 15:56:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'598 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:1ZZLBZSl03+h03+YLwevxLfUdKzfYLnye2eErNTOhnCYhzbz:HZLBsl03+h03+YLLvxjlYjjVsNTOZC+
Threatray 1'973 similar samples on MalwareBazaar
TLSH B6E4B06573A5A833D17B3E35CAB75514077BBC93393DC71A2ACD33CE98203A95D006AA
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: cloud-1bdf0b.managed-vps.net
Sending IP: 78.128.43.156
From: Martin Adel <info@brtglobalscrap.com>
Subject: Order Inquiry
Attachment: RAHIM TRADING CO. FOR IMP.IMG (contains "RAHIM TRADING CO. FOR IMP.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
98
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/44206/
Detection(s):
SecuriteInfo.com.RSharedStrings.23124.24237.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
Connection attempt
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/422868
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Binary contains a suspicious time stamp
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)
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: 263879 Sample: RAHIM TRADING CO. FOR IMP.exe Startdate: 13/08/2020 Architecture: WINDOWS Score: 100 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Sigma detected: Scheduled temp file as task from temp location 2->46 48 9 other signatures 2->48 7 RAHIM TRADING CO. FOR IMP.exe 7 2->7         started        11 dhcpmon.exe 5 2->11         started        process3 file4 28 C:\Users\user\AppData\Local\...\tmp7F65.tmp, XML 7->28 dropped 30 C:\Users\user\AppData\Roaming\oFxLYQpK.exe, PE32 7->30 dropped 50 Injects a PE file into a foreign processes 7->50 13 RAHIM TRADING CO. FOR IMP.exe 1 11 7->13         started        18 schtasks.exe 1 7->18         started        20 schtasks.exe 1 11->20         started        22 dhcpmon.exe 2 11->22         started        signatures5 process6 dnsIp7 38 127.0.0.1 unknown unknown 13->38 40 194.5.97.7, 21600, 49731, 49732 DANILENKODE Netherlands 13->40 32 C:\Program Files (x86)\...\dhcpmon.exe, PE32 13->32 dropped 34 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 13->34 dropped 36 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 13->36 dropped 52 Hides that the sample has been downloaded from the Internet (zone.identifier) 13->52 24 conhost.exe 18->24         started        26 conhost.exe 20->26         started        file8 signatures9 process10
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/240159852a07d731922811db6650130ff93a374e2128e72bf2b7cf8b52fe551e/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2020-08-12 14:42:10 UTC
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=eqavtbjka7ltderichnwmuatb74tun2oeeuook7sw7hywux6kupa._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
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ebf3f5dcc1e490b1c671aee03cf66d8ac200303a0615bafecabb5a55819eb0c7
NanoCore
+ 1'963 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
keylogger trojan stealer spyware family:nanocore persistence evasion
Link:
https://tria.ge/reports/200812-9ngh63taja/
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
NanoCore
Malware Config
C2 Extraction:
194.5.97.7:21600
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/240159852a07d731922811db6650130ff93a374e2128e72bf2b7cf8b52fe551e

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:RSharedStrings
Create hunting rule
Author:Katie Kleemola
Description:identifiers for remote and gmremote
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

img 02836293f5f7da55efb90a2d910bf7bfa0b5820d6f605125eaac32a66aff3c97

NanoCore

Executable exe 240159852a07d731922811db6650130ff93a374e2128e72bf2b7cf8b52fe551e

(this sample)

  
Dropped by
MD5 11af19380075609643e80e17148be4d9
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/44206/
  
Dropped by
SHA256 02836293f5f7da55efb90a2d910bf7bfa0b5820d6f605125eaac32a66aff3c97

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