MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3a38651e8b31844393d1252c7a78aac1eda5656c94ff93f17062c66cc961ac3. 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


NetWire


Vendor detections: 8


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

SHA256 hash: b3a38651e8b31844393d1252c7a78aac1eda5656c94ff93f17062c66cc961ac3
SHA3-384 hash: 4e0dd85ae7f77c958d2feaaf11ba510fb55c93c0c721df6d24f904824cb4ae822a9f3470bac5f057196b0231daa53769
SHA1 hash: 35b7dc70fe7ea8bba8284352bad4f937d3541caf
MD5 hash: 616c9a9f34da87b771f7aa1533b4d7c7
humanhash: saturn-alanine-mars-table
File name:02_extracted.exe
Download: download sample
Signature NetWire
Create hunting rule
File size:254'992 bytes
First seen:2020-12-06 23:38:53 UTC
Last seen:2020-12-07 02:08:23 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'656 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 3072:eMuAzpMRiyarfb3mNnCDDRvLGbrOAOkGt6+duWA/t/SHUebbxCbGgKk12qk/oPYp:buAzpMRiyarfbCstvLGyELbMUTKZB
Threatray 326 similar samples on MalwareBazaar
TLSH D544C9423245DC9AE1472AF2489FC53051F8AD9F8131C60E3787BB3B99E7352285B79E
Reporter Racco42
Tags:exe NetWire

Intelligence

File Origin
# of uploads :
2
# of downloads :
364
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/106964/
Detection(s):
SecuriteInfo.com.Trojan.MSIL.Basic.10.Gen.24045.3881.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Running batch commands
Creating a process with a hidden window
Launching a process
Sending a UDP request
DNS request
Using the Windows Management Instrumentation requests
Creating a window
Sending a TCP request to an infection source
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:
NetWire
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/556531
Signature
.NET source code contains very large array initializations
Connects to a pastebin service (likely for C&C)
Contains functionality to steal Chrome passwords or cookies
Creates an undocumented autostart registry key
Creates autostart registry keys with suspicious names
Creates multiple autostart registry keys
Drops PE files to the startup folder
Hides threads from debuggers
Injects a PE file into a foreign processes
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: NetWire
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected NetWire RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 327368 Sample: 02_extracted.exe Startdate: 07/12/2020 Architecture: WINDOWS Score: 100 59 hastebin.com 2->59 61 g.msn.com 2->61 69 Yara detected NetWire RAT 2->69 71 Sigma detected: NetWire 2->71 73 .NET source code contains very large array initializations 2->73 75 2 other signatures 2->75 8 02_extracted.exe 18 5 2->8         started        13 02_extracted.exe 3 2->13         started        15 02_extracted.exe 3 2->15         started        17 2 other processes 2->17 signatures3 process4 dnsIp5 65 hastebin.com 104.24.126.89, 443, 49722, 49741 CLOUDFLARENETUS United States 8->65 67 192.168.2.1 unknown unknown 8->67 57 C:\Users\user\AppData\...\02_extracted.exe, PE32 8->57 dropped 79 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 8->79 81 Creates an undocumented autostart registry key 8->81 83 Drops PE files to the startup folder 8->83 19 aspnet_wp.exe 8->19         started        22 aspnet_wp.exe 2 8->22         started        25 cmd.exe 1 8->25         started        27 WerFault.exe 23 9 8->27         started        85 Writes to foreign memory regions 13->85 87 Hides threads from debuggers 13->87 89 Injects a PE file into a foreign processes 13->89 29 cmd.exe 1 13->29         started        37 2 other processes 13->37 91 Creates autostart registry keys with suspicious names 15->91 93 Creates multiple autostart registry keys 15->93 31 cmd.exe 15->31         started        33 cmd.exe 17->33         started        35 cmd.exe 17->35         started        file6 signatures7 process8 dnsIp9 77 Contains functionality to steal Chrome passwords or cookies 19->77 63 alkaline.publicvm.com 192.3.3.144, 1777, 49733, 49735 AS-COLOCROSSINGUS United States 22->63 39 conhost.exe 25->39         started        41 timeout.exe 1 25->41         started        43 conhost.exe 29->43         started        45 timeout.exe 1 29->45         started        47 conhost.exe 31->47         started        49 timeout.exe 31->49         started        51 conhost.exe 33->51         started        53 timeout.exe 33->53         started        55 2 other processes 35->55 signatures10 process11
Gathering data
Threat name:
ByteCode-MSIL.Backdoor.RevengeRAT
Create hunting rule
Status:
Malicious
First seen:
2020-12-07 00:35:35 UTC
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
netwirerc
Create hunting rule
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NetWire
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NetWire
+ 316 additional samples on MalwareBazaar
Result
Malware family:
netwire
Create hunting rule
Score:
  10/10
Tags:
family:netwire botnet evasion persistence rat stealer
Link:
https://tria.ge/reports/201206-p73rmkh8yj/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Maps connected drives based on registry
Checks BIOS information in registry
Drops startup file
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
Modifies WinLogon for persistence
NetWire RAT payload
Netwire
Unpacked files
SH256 hash:
b3a38651e8b31844393d1252c7a78aac1eda5656c94ff93f17062c66cc961ac3
MD5 hash:
616c9a9f34da87b771f7aa1533b4d7c7
SHA1 hash:
35b7dc70fe7ea8bba8284352bad4f937d3541caf
Link:
https://www.unpac.me/results/b040c1cb-901d-4ba1-b1c3-eefdf5b0f63f/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b3a38651e8b31844393d1252c7a78aac1eda5656c94ff93f17062c66cc961ac3

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/106964/

Comments