MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f6a307d243c407c27489de37adac83e9205be531cbb4e2cb71545627faf813fd. 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



Threat unknown


Vendor detections: 8


Intelligence 8 IOCs YARA File information Comments

SHA256 hash: f6a307d243c407c27489de37adac83e9205be531cbb4e2cb71545627faf813fd
SHA3-384 hash: d5839684c594c832f0079182bcae8582c6ca0666476f93063454fbee9833b667ea30ff40307d3cfbdeaf6a4f01abbcac
SHA1 hash: b975777c42d7d8fb04c34a2efc64dc5e4c574712
MD5 hash: 4ced2056e4efe1c93b9f4adaaeaba20c
humanhash: seven-magazine-wolfram-red
File name:4ced2056e4efe1c93b9f4adaaeaba20c.exe
Download: download sample
File size:622'251 bytes
First seen:2021-01-11 07:35:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash fcf1390e9ce472c7270447fc5c61a0c1 (863 x DCRat, 118 x NanoCore, 94 x njrat)
ssdeep 12288:2Qnk3GDYKGcblivT+tcr86oDfMEdtc4XKu+yT7cf/MsmtA6f:6AOcZiJrGDfpzVXKGT6m5
Threatray 365 similar samples on MalwareBazaar
TLSH 25D4F101B6C588B2D43319325A359B156D3D7D206F38DA7FB7E42D6DEA701D0A224BB3
Reporter abuse_ch
Tags:exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
94
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
update.exe
Verdict:
Malicious activity
Analysis date:
2021-01-11 17:06:51 UTC
Tags:
trojan rat backdoor dcrat evasion

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Searching for the window
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Running batch commands
Creating a process with a hidden window
Sending a UDP request
Using the Windows Management Instrumentation requests
Creating a file
Launching a process
Creating a file in the Windows subdirectories
Sending an HTTP GET request
DNS request
Sending a custom TCP request
Creating a file in the %temp% directory
Deleting a recently created file
Reading critical registry keys
Enabling the 'hidden' option for recently created files
Unauthorized injection to a recently created process
Creating a file in the mass storage device
Stealing user critical data
Enabling autorun by creating a file
Enabling threat expansion on mass storage devices by creating the autorun.inf autorun 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:
Unknown
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code references suspicious native API functions
Antivirus detection for dropped file
Disables the Windows task manager (taskmgr)
Drops PE files with benign system names
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
May check the online IP address of the machine
Multi AV Scanner detection for submitted file
Protects its processes via BreakOnTermination flag
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Sigma detected: Executables Started in Suspicious Folder
Sigma detected: Execution in Non-Executable Folder
Sigma detected: Suspicious Program Location Process Starts
Tries to harvest and steal browser information (history, passwords, etc)
Uses schtasks.exe or at.exe to add and modify task schedules
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 337867 Sample: VHspB1u63F.exe Startdate: 11/01/2021 Architecture: WINDOWS Score: 100 94 Antivirus detection for dropped file 2->94 96 Multi AV Scanner detection for submitted file 2->96 98 .NET source code contains method to dynamically call methods (often used by packers) 2->98 100 8 other signatures 2->100 13 VHspB1u63F.exe 3 10 2->13         started        16 Idle.exe 2->16         started        19 System.exe 2->19         started        21 OorGEgfFCKeSTVB.exe 15 14 2->21         started        process3 dnsIp4 76 C:\Users\user\...\HoykwG9pmLZ7sZbSP8eb.exe, PE32 13->76 dropped 24 wscript.exe 1 13->24         started        84 Antivirus detection for dropped file 16->84 86 Machine Learning detection for dropped file 16->86 88 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 16->88 78 62.109.19.166, 49718, 49728, 49734 THEFIRST-ASRU Russian Federation 21->78 80 ipinfo.io 216.239.38.21, 443, 49727 GOOGLEUS United States 21->80 82 192.168.2.1 unknown unknown 21->82 90 Protects its processes via BreakOnTermination flag 21->90 92 Tries to harvest and steal browser information (history, passwords, etc) 21->92 file5 signatures6 process7 process8 26 cmd.exe 1 24->26         started        process9 28 HoykwG9pmLZ7sZbSP8eb.exe 10 26->28         started        31 conhost.exe 26->31         started        file10 74 C:\Users\user\AppData\...\winrar-x84.exe, PE32 28->74 dropped 33 wscript.exe 1 28->33         started        process11 process12 35 cmd.exe 1 33->35         started        process13 37 winrar-x84.exe 1 17 35->37         started        41 reg.exe 35->41         started        43 conhost.exe 35->43         started        file14 66 C:\Users\user\...\OorGEgfFCKeSTVB.exe, PE32 37->66 dropped 68 C:\Users\Public\...\OorGEgfFCKeSTVB.exe, PE32 37->68 dropped 70 C:\Users\Default\Videos\Idle.exe, PE32 37->70 dropped 72 4 other files (3 malicious) 37->72 dropped 102 Antivirus detection for dropped file 37->102 104 Machine Learning detection for dropped file 37->104 106 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 37->106 110 2 other signatures 37->110 45 OorGEgfFCKeSTVB.exe 37->45         started        48 schtasks.exe 1 37->48         started        50 schtasks.exe 1 37->50         started        52 5 other processes 37->52 108 Disables the Windows task manager (taskmgr) 41->108 signatures15 process16 signatures17 112 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 45->112 54 conhost.exe 48->54         started        56 conhost.exe 50->56         started        58 conhost.exe 52->58         started        60 conhost.exe 52->60         started        62 conhost.exe 52->62         started        64 2 other processes 52->64 process18
Threat name:
ByteCode-MSIL.Backdoor.LightStone
Status:
Malicious
First seen:
2021-01-11 07:36:05 UTC
AV detection:
24 of 46 (52.17%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
evasion spyware
Behaviour
Creates scheduled task(s)
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Modifies registry class
Drops file in Program Files directory
Drops file in Windows directory
Looks up external IP address via web service
Loads dropped DLL
Reads user/profile data of web browsers
Disables Task Manager via registry modification
Executes dropped EXE
Unpacked files
SH256 hash:
f6a307d243c407c27489de37adac83e9205be531cbb4e2cb71545627faf813fd
MD5 hash:
4ced2056e4efe1c93b9f4adaaeaba20c
SHA1 hash:
b975777c42d7d8fb04c34a2efc64dc5e4c574712
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Web download

Executable exe f6a307d243c407c27489de37adac83e9205be531cbb4e2cb71545627faf813fd

(this sample)

  
Delivery method
Distributed via web download

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