MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a4c035de8a4edb11a8cfaef2f2f8326d8909578cf9d5a5534edd4eb9d5a50680. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a4c035de8a4edb11a8cfaef2f2f8326d8909578cf9d5a5534edd4eb9d5a50680
SHA3-384 hash: 25fb4dc42235f62822589586bfe452fea1ed9544105d84d9edc813a19658c31b553fd76baaeb2b0182db4972e86c18ae
SHA1 hash: 022e4535b1d54ade3c9353c78952f2bc1126118c
MD5 hash: a1853a065d27d2224234de9ed34b2a38
humanhash: maine-jupiter-maine-montana
File name:ORT09937378200002.PDF.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:1'736'704 bytes
First seen:2020-10-28 07:50:13 UTC
Last seen:2020-10-28 09:53:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:8XSll0r7Opq/kzTW0IM7CJqviquzWmVxP1zBDs70hwgUrz8iMZSaxIIO:v0rWiKCWmRzBthwgmKAaxIIO
TLSH 5785AD6B62379171C21A0679C236FA35D211EF7CCBA265AE8FC8B9195D384F31353D0A
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: server.doklsa.us
Sending IP: 185.249.197.82
From: Krungsri (Bank of Ayudhya) <CMSSupport@krungsri.com>
Subject: Report: Payment Advice จากระบบ Krungsri
Attachment: ORT09937378200002.PDF.img (contains "ORT09937378200002.PDF.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
117
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Azorult
Create hunting rule
Link:
https://www.capesandbox.com/analysis/80318/
Detection(s):
SecuriteInfo.com.ArtemisA1853A065D27.20988.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a file in the %temp% directory
Creating a process from a recently created file
Running batch commands
Creating a process with a hidden window
Creating a window
DNS request
Launching a process
Sending an HTTP GET request
Creating a file
Deleting a recently created file
Reading critical registry keys
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Sending an HTTP POST request to an infection source
Enabling autorun
Result
Threat name:
AZORult MailPassView
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/514635
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Creates an undocumented autostart registry key
Creates executable files without a name
Detected AZORult Info Stealer
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file access)
Uses an obfuscated file name to hide its real file extension (double extension)
Writes to foreign memory regions
Yara detected Azorult
Yara detected Azorult Info Stealer
Yara detected MailPassView
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 306427 Sample: ORT09937378200002.PDF.exe Startdate: 28/10/2020 Architecture: WINDOWS Score: 100 107 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->107 109 Found malware configuration 2->109 111 Malicious sample detected (through community Yara rule) 2->111 113 12 other signatures 2->113 9 ORT09937378200002.PDF.exe 8 2->9         started        process3 file4 71 C:\Users\user\AppData\Local\Temp\svhost.exe, PE32 9->71 dropped 73 C:\Users\user\AppData\Local\Temp\File.exe, PE32 9->73 dropped 121 Writes to foreign memory regions 9->121 123 Allocates memory in foreign processes 9->123 125 Injects a PE file into a foreign processes 9->125 13 File.exe 6 9->13         started        17 svhost.exe 66 9->17         started        20 cmd.exe 9->20         started        22 2 other processes 9->22 signatures5 process6 dnsIp7 85 C:\Users\user\AppData\Local\Temp\tmp.exe, PE32 13->85 dropped 87 C:\Users\user\AppData\Local\Temp\.exe, PE32 13->87 dropped 127 Creates executable files without a name 13->127 129 Injects a PE file into a foreign processes 13->129 24 File.exe 15 13->24         started        28 tmp.exe 17 13->28         started        99 testwp.warungpencar.com 35.213.160.4, 49752, 49772, 80 GOOGLEUS United States 17->99 89 C:\Users\user\AppData\...\vcruntime140.dll, PE32 17->89 dropped 91 C:\Users\user\AppData\Local\...\ucrtbase.dll, PE32 17->91 dropped 93 C:\Users\user\AppData\Local\...\softokn3.dll, PE32 17->93 dropped 97 45 other files (none is malicious) 17->97 dropped 131 Detected AZORult Info Stealer 17->131 133 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->133 135 Tries to steal Instant Messenger accounts or passwords 17->135 137 3 other signatures 17->137 30 cmd.exe 17->30         started        32 reg.exe 20->32         started        35 conhost.exe 20->35         started        95 C:\Users\user\AppData\Local\Temp\...\name.exe, PE32 22->95 dropped 37 conhost.exe 22->37         started        39 conhost.exe 22->39         started        file8 signatures9 process10 dnsIp11 75 C:\Users\user\AppData\Local\Temp\B.exe, PE32 24->75 dropped 77 C:\Users\user\AppData\Local\...\B[2], PE32 24->77 dropped 41 cmd.exe 24->41         started        43 cmd.exe 24->43         started        103 yunpen.myartsonline.com 185.176.43.102, 49751, 49756, 49758 ZETTA-ASBG Bulgaria 28->103 79 C:\Users\user\AppData\Local\Temp\A.exe, PE32 28->79 dropped 81 C:\Users\user\AppData\Local\...\B[1], PE32 28->81 dropped 83 C:\Users\user\AppData\Local\...\A[1], PE32 28->83 dropped 45 cmd.exe 28->45         started        47 cmd.exe 1 28->47         started        49 conhost.exe 30->49         started        51 timeout.exe 30->51         started        105 Creates an undocumented autostart registry key 32->105 file12 signatures13 process14 process15 53 B.exe 41->53         started        56 conhost.exe 41->56         started        58 A.exe 43->58         started        60 conhost.exe 43->60         started        62 B.exe 45->62         started        64 conhost.exe 45->64         started        66 A.exe 13 47->66         started        69 conhost.exe 47->69         started        dnsIp16 115 Tries to harvest and steal browser information (history, passwords, etc) 58->115 117 Tries to steal Instant Messenger accounts or passwords 62->117 119 Tries to steal Mail credentials (via file access) 62->119 101 192.168.2.1 unknown unknown 66->101 signatures17
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a4c035de8a4edb11a8cfaef2f2f8326d8909578cf9d5a5534edd4eb9d5a50680/
Threat name:
ByteCode-MSIL.Spyware.HiveMon
Create hunting rule
Status:
Malicious
First seen:
2020-10-28 04:00:44 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=utadlxukj3nrdkgpv3zpf6bsnweqsv4m7hk2ku2o3vhltvnfa2aa._file
Result
Malware family:
azorult
Create hunting rule
Score:
  10/10
Tags:
family:azorult discovery infostealer spyware trojan
Link:
https://tria.ge/reports/201028-asdn92axc2/
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
NTFS ADS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Checks installed software on the system
JavaScript code in executable
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Executes dropped EXE
ServiceHost packer
Azorult
Malware Config
C2 Extraction:
http://testwp.warungpencar.com/bp/index.php
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/a4c035de8a4edb11a8cfaef2f2f8326d8909578cf9d5a5534edd4eb9d5a50680

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

NanoCore

img 4502891903e3d9649f417765f4545a8597bff0f98200bddc783982f476e07ad3

NanoCore

Executable exe a4c035de8a4edb11a8cfaef2f2f8326d8909578cf9d5a5534edd4eb9d5a50680

(this sample)

  
Dropped by
MD5 d60fce0b531e69925dc41f8ad903708f
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 4502891903e3d9649f417765f4545a8597bff0f98200bddc783982f476e07ad3
Cape
Cape
https://www.capesandbox.com/analysis/80318/

Comments