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File name:

1.exe

Full analysis: https://app.any.run/tasks/d8cac8dd-7dc3-4eeb-b3c2-3a21f0f54e9b
Verdict: Malicious activity
Threats:

Orcus is a modular Remote Access Trojan with some unusual functions. This RAT enables attackers to create plugins using a custom development library and offers a robust core feature set that makes it one of the most dangerous malicious programs in its class.

Analysis date: May 21, 2022, 08:14:23
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
rat
orcus
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5:

F74B3663D33F58D0B47A044C1C444EE9

SHA1:

50B100D840FD4A30F8EBDE23504276CF61CF872D

SHA256:

A4C2B54D2F4EDA0B094DC60539C12A69CD0246E3C9043B4A7EDC1B5B82DA3B0C

SSDEEP:

12288:Q5STYf+qnR7Fkxh7dG1lFlWcYT70pxnnaaoawASIh4JWVGhrZNrI0AilFEvxHvB9:Mhg4MROxnFp/iJZrZlI0AilFEvxHiM3

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

      • 1.exe (PID: 2612)
    • Starts Visual C# compiler

      • 1.exe (PID: 2612)
    • Drops executable file immediately after starts

      • csc.exe (PID: 3172)
  • SUSPICIOUS

    • Checks supported languages

      • 1.exe (PID: 2612)
      • csc.exe (PID: 3172)
      • cvtres.exe (PID: 3204)
    • Reads the computer name

      • 1.exe (PID: 2612)
    • Drops a file with a compile date too recent

      • csc.exe (PID: 3172)
    • Executable content was dropped or overwritten

      • csc.exe (PID: 3172)
  • 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

AssemblyVersion: 1.0.0.0
ProductVersion: 1.0.0.0
ProductName: -
OriginalFileName: Orcus.exe
LegalTrademarks: -
LegalCopyright: -
InternalName: Orcus.exe
FileVersion: 1.0.0.0
FileDescription: -
CompanyName: -
Comments: -
CharacterSet: Unicode
LanguageCode: Neutral
FileSubtype: -
ObjectFileType: Executable application
FileOS: Win32
FileFlags: (none)
FileFlagsMask: 0x003f
ProductVersionNumber: 1.0.0.0
FileVersionNumber: 1.0.0.0
Subsystem: Windows GUI
SubsystemVersion: 4
ImageVersion: -
OSVersion: 4
EntryPoint: 0xe424e
UninitializedDataSize: -
InitializedDataSize: 4608
CodeSize: 926720
LinkerVersion: 8
PEType: PE32
TimeStamp: 2022:05:21 10:13:55+02:00
MachineType: Intel 386 or later, and compatibles

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 21-May-2022 08:13:55
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: 21-May-2022 08:13:55
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
0x000E2254
0x000E2400
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
7.15175
.rsrc
0x000E6000
0x00001000
0x00001000
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
4.99406
.reloc
0x000E8000
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.
screenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
36
Monitored processes
3
Malicious processes
1
Suspicious processes
1

Behavior graph

Click at the process to see the details
start #ORCUS 1.exe no specs csc.exe cvtres.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
2612"C:\Users\admin\AppData\Local\Temp\1.exe" C:\Users\admin\AppData\Local\Temp\1.exe
Explorer.EXE
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Version:
1.0.0.0
3172"C:\Windows\Microsoft.NET\Framework\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Users\admin\AppData\Local\Temp\ljdc62t7.cmdline"C:\Windows\Microsoft.NET\Framework\v2.0.50727\csc.exe
1.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Visual C# Command Line Compiler
Exit code:
0
Version:
8.0.50727.5483 (Win7SP1GDR.050727-5400)
3204C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\admin\AppData\Local\Temp\RES4808.tmp" "c:\Users\admin\AppData\Local\Temp\CSC4807.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:
8.00.50727.5003 (Win7SP1GDR.050727-5400)
Total events
252
Read events
252
Write events
0
Delete events
0

Modification events

No data
Executable files
1
Suspicious files
0
Text files
3
Unknown types
2

Dropped files

PID
Process
Filename
Type
3172csc.exeC:\Users\admin\AppData\Local\Temp\CSC4807.tmpres
MD5:0F7DED8957A489FBDA256C53DD47CA19
SHA256:E39A680CF1E4760610F53F70217EBA935FAF2517F91EB971C9265661A05657A8
3204cvtres.exeC:\Users\admin\AppData\Local\Temp\RES4808.tmpo
MD5:EDD50BB4C0C264CFAE791F5C4A5A6239
SHA256:D502234F5EFE544A15310D186284D5050D8191D787856FDA3F3412EA7BFC6A85
26121.exeC:\Users\admin\AppData\Local\Temp\ljdc62t7.cmdlinetext
MD5:A0BEDCF5A0C34B99649A37961E405D5C
SHA256:457D4851D9A5E0C360D71C5D605C111B3548821F9645159B114FC830D1D282C8
26121.exeC:\Users\admin\AppData\Local\Temp\ljdc62t7.0.cstext
MD5:F1C559DF47328BF43D147342881799C6
SHA256:45DB75D2B260965DB4B47565B2631F708F1AD28B422ACB896C1D12CD8F7084A5
3172csc.exeC:\Users\admin\AppData\Local\Temp\ljdc62t7.dllexecutable
MD5:D482A2B4F1D9FE990D1AC32241DEC31D
SHA256:4EBE5C3DFF74CF867EB6E7B047AE01C0ADD49769239A770B60492B066588D955
3172csc.exeC:\Users\admin\AppData\Local\Temp\ljdc62t7.outtext
MD5:2AB74A753B6C18D06AE7F3A20B17420D
SHA256:A9934A06A13E92644950D23D0977EA5A74AC90713C1113997DE75308FBD40A5D
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
0
DNS requests
0
Threats
0

HTTP requests

No HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

No data

DNS requests

No data

Threats

No threats detected
No debug info