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File name:

v.exe

Full analysis: https://app.any.run/tasks/263334b1-5ae2-4a1b-b3f2-b4e23feccaf4
Verdict: Malicious activity
Threats:

AsyncRAT is a RAT that can monitor and remotely control infected systems. This malware was introduced on Github as a legitimate open-source remote administration software, but hackers use it for its many powerful malicious functions.

Analysis date: November 29, 2020, 22:06:22
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
rat
orcus
trojan
asyncrat
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5:

4CFBB10C8ACC71530429A2E3C3D0438A

SHA1:

D9C2CACE2AE7C90FD9877169980C8C5A32743864

SHA256:

D33185A074776F2B6C6A8F85594E84961539B5FF018908BA18156F5648496776

SSDEEP:

24576:sfM4MROxnFOgH8rZlI0AilFEvxHihCxJ:sffMif8rZlI0AilFEvxHihC

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.
  • MALICIOUS

    • ORCUS was detected

      • v.exe (PID: 2400)
      • v.exe (PID: 2928)
      • Orcus.exe (PID: 1264)
    • Starts Visual C# compiler

      • v.exe (PID: 2928)
      • v.exe (PID: 2400)
    • ASYNCRAT was detected

      • Orcus.exe (PID: 1264)
    • Changes settings of System certificates

      • Orcus.exe (PID: 1264)
  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • v.exe (PID: 2928)
    • Creates files in the program directory

      • v.exe (PID: 2928)
    • Application launched itself

      • v.exe (PID: 2400)
    • Creates a directory in Program Files

      • v.exe (PID: 2928)
    • Starts itself from another location

      • v.exe (PID: 2928)
    • Drops a file with a compile date too recent

      • v.exe (PID: 2928)
  • INFO

    No info indicators.
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Generic CIL Executable (.NET, Mono, etc.) (56.7)
.exe | Win64 Executable (generic) (21.3)
.scr | Windows screen saver (10.1)
.dll | Win32 Dynamic Link Library (generic) (5)
.exe | Win32 Executable (generic) (3.4)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2020:11:29 23:00:44+01:00
PEType: PE32
LinkerVersion: 8
CodeSize: 924160
InitializedDataSize: 4608
UninitializedDataSize: -
EntryPoint: 0xe38ce
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI
FileVersionNumber: 1.0.0.0
ProductVersionNumber: 1.0.0.0
FileFlagsMask: 0x003f
FileFlags: (none)
FileOS: Win32
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: Neutral
CharacterSet: Unicode
Comments: -
CompanyName: -
FileDescription: -
FileVersion: 1.0.0.0
InternalName: Orcus.exe
LegalCopyright: -
LegalTrademarks: -
OriginalFileName: Orcus.exe
ProductName: -
ProductVersion: 1.0.0.0
AssemblyVersion: 1.0.0.0

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 29-Nov-2020 22:00:44
Comments: -
CompanyName: -
FileDescription: -
FileVersion: 1.0.0.0
InternalName: Orcus.exe
LegalCopyright: -
LegalTrademarks: -
OriginalFilename: Orcus.exe
ProductName: -
ProductVersion: 1.0.0.0
Assembly Version: 1.0.0.0

DOS Header

Magic number: MZ
Bytes on last page of file: 0x0090
Pages in file: 0x0003
Relocations: 0x0000
Size of header: 0x0004
Min extra paragraphs: 0x0000
Max extra paragraphs: 0xFFFF
Initial SS value: 0x0000
Initial SP value: 0x00B8
Checksum: 0x0000
Initial IP value: 0x0000
Initial CS value: 0x0000
Overlay number: 0x0000
OEM identifier: 0x0000
OEM information: 0x0000
Address of NE header: 0x00000080

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 3
Time date stamp: 29-Nov-2020 22:00:44
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_EXECUTABLE_IMAGE

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00002000
0x000E18D4
0x000E1A00
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
7.15099
.rsrc
0x000E4000
0x00001000
0x00001000
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
4.99491
.reloc
0x000E6000
0x0000000C
0x00000200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
0.10191

Resources

Title
Entropy
Size
Codepage
Language
Type
1
4.99793
3128
UNKNOWN
UNKNOWN
RT_MANIFEST

Imports

mscoree.dll
No data.
screenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
46
Monitored processes
7
Malicious processes
3
Suspicious processes
0

Behavior graph

Click at the process to see the details
start drop and start #ORCUS v.exe no specs csc.exe no specs cvtres.exe no specs #ORCUS v.exe csc.exe no specs cvtres.exe no specs #ORCUS orcus.exe

Process information

PID
CMD
Path
Indicators
Parent process
2400"C:\Users\admin\AppData\Local\Temp\v.exe" C:\Users\admin\AppData\Local\Temp\v.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Version:
1.0.0.0
2276"C:\Windows\Microsoft.NET\Framework\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Users\admin\AppData\Local\Temp\u4opwc3f.cmdline"C:\Windows\Microsoft.NET\Framework\v2.0.50727\csc.exev.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Visual C# Command Line Compiler
Exit code:
0
Version:
8.0.50727.4927 (NetFXspW7.050727-4900)
2724C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\admin\AppData\Local\Temp\RES43BA.tmp" "c:\Users\admin\AppData\Local\Temp\CSC43B9.tmp"C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.execsc.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft® Resource File To COFF Object Conversion Utility
Exit code:
0
Version:
8.00.50727.4940 (Win7SP1.050727-5400)
2928"C:\Users\admin\AppData\Local\Temp\v.exe" /waitC:\Users\admin\AppData\Local\Temp\v.exe
v.exe
User:
admin
Integrity Level:
HIGH
Exit code:
0
Version:
1.0.0.0
848"C:\Windows\Microsoft.NET\Framework\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Users\admin\AppData\Local\Temp\cb-7ahek.cmdline"C:\Windows\Microsoft.NET\Framework\v2.0.50727\csc.exev.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Visual C# Command Line Compiler
Exit code:
0
Version:
8.0.50727.4927 (NetFXspW7.050727-4900)
3464C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\admin\AppData\Local\Temp\RES4BC9.tmp" "c:\Users\admin\AppData\Local\Temp\CSC4BC8.tmp"C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.execsc.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Microsoft® Resource File To COFF Object Conversion Utility
Exit code:
0
Version:
8.00.50727.4940 (Win7SP1.050727-5400)
1264"C:\Program Files\Orcus\Orcus.exe" C:\Program Files\Orcus\Orcus.exe
v.exe
User:
admin
Integrity Level:
HIGH
Version:
1.0.0.0
Total events
450
Read events
431
Write events
0
Delete events
0

Modification events

No data
Executable files
1
Suspicious files
5
Text files
3
Unknown types
0

Dropped files

PID
Process
Filename
Type
2276csc.exeC:\Users\admin\AppData\Local\Temp\CSC43B9.tmp
MD5:
SHA256:
2724cvtres.exeC:\Users\admin\AppData\Local\Temp\RES43BA.tmp
MD5:
SHA256:
2276csc.exeC:\Users\admin\AppData\Local\Temp\u4opwc3f.dll
MD5:
SHA256:
2276csc.exeC:\Users\admin\AppData\Local\Temp\u4opwc3f.out
MD5:
SHA256:
2928v.exeC:\Users\admin\AppData\Local\Temp\cb-7ahek.0.cs
MD5:
SHA256:
2928v.exeC:\Users\admin\AppData\Local\Temp\cb-7ahek.cmdline
MD5:
SHA256:
848csc.exeC:\Users\admin\AppData\Local\Temp\CSC4BC8.tmp
MD5:
SHA256:
3464cvtres.exeC:\Users\admin\AppData\Local\Temp\RES4BC9.tmp
MD5:
SHA256:
848csc.exeC:\Users\admin\AppData\Local\Temp\cb-7ahek.dll
MD5:
SHA256:
848csc.exeC:\Users\admin\AppData\Local\Temp\cb-7ahek.out
MD5:
SHA256:
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
2
TCP/UDP connections
2
DNS requests
2
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
1264
Orcus.exe
GET
200
8.248.115.254:80
http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab
US
compressed
57.5 Kb
whitelisted
1264
Orcus.exe
GET
304
8.248.115.254:80
http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab
US
compressed
57.5 Kb
whitelisted
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
1264
Orcus.exe
8.248.115.254:80
www.download.windowsupdate.com
Level 3 Communications, Inc.
US
suspicious
1264
Orcus.exe
24.240.72.240:5353
chair123.ddns.net
Charter Communications
US
malicious

DNS requests

Domain
IP
Reputation
chair123.ddns.net
  • 24.240.72.240
malicious
www.download.windowsupdate.com
  • 8.248.115.254
  • 8.248.131.254
  • 67.26.139.254
  • 67.27.233.126
  • 8.248.119.254
whitelisted

Threats

PID
Process
Class
Message
Potentially Bad Traffic
ET POLICY DNS Query to DynDNS Domain *.ddns .net
1264
Orcus.exe
A Network Trojan was detected
MALWARE [PTsecurity] Malicious SSL connection (Orcus RAT)
1 ETPRO signatures available at the full report
No debug info