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File name:

HEUR-Backdoor.MSIL.Crysan.gen-776a0daa3533b4607295f9f4f875ee8f4d6d323e8a782fac5d3e69fcb6994ac7.exe

Full analysis: https://app.any.run/tasks/beb1677c-355f-4811-8693-bd011d9d8699
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.

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Analysis date: May 20, 2022, 20:38:47
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
asyncrat
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5:

178721DAB5F63FF2E11279D417CD9430

SHA1:

D1B689FA3DF2ED07187AC34A31E506BD8BEB94FE

SHA256:

776A0DAA3533B4607295F9F4F875EE8F4D6D323E8A782FAC5D3E69FCB6994AC7

SSDEEP:

3072:xvLZVU0AEpJdEbW68Er9y5NAT3FFITVolvG2Uif:XdA8TVo

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

    • ASYNCRAT detected by memory dumps

      • HEUR-Backdoor.MSIL.Crysan.gen-776a0daa3533b4607295f9f4f875ee8f4d6d323e8a782fac5d3e69fcb6994ac7.exe (PID: 3992)

  • SUSPICIOUS

    • Reads the computer name

      • HEUR-Backdoor.MSIL.Crysan.gen-776a0daa3533b4607295f9f4f875ee8f4d6d323e8a782fac5d3e69fcb6994ac7.exe (PID: 3992)

    • Checks supported languages

      • HEUR-Backdoor.MSIL.Crysan.gen-776a0daa3533b4607295f9f4f875ee8f4d6d323e8a782fac5d3e69fcb6994ac7.exe (PID: 3992)

  • INFO

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

AsyncRat

(PID) Process(3992) HEUR-Backdoor.MSIL.Crysan.gen-776a0daa3533b4607295f9f4f875ee8f4d6d323e8a782fac5d3e69fcb6994ac7.exe
Install_Folder%AppData%
Saltbfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
Aes_Key6bf5bfecfbfb34020c442e764e9a02a20edfd2b2ec94b839f590fcba30494b4c
BotnetDefault
bdosfalse
PasteBinnull
AntiVMfalse
Server_SignaturejcT2hHERuk9nHJkfGdhcuESvn8AsldNnrD5tnoehBA2Pfjn1rNqQYIzpvBlxrbiLgsEnzcdMZcotGCHHaLYtyUL4DoH/f/veA25TpI3gm8m0fyGQhpNqJQb/P1lauE+re/Lr0Cxsw3uWWqwWbk6rnyk29KlbGdU605enwwKS9LpfkRiEde2OiVA5MOHlyqP6qPiR3KvYHTcnzHjB2MYNkXQWQLeZWXVm3WE/FGglh9CtF1OVIKDJrnArAur4crjMknq2IfeklxldJ9prJRCSQ0wts3evrra/A4M3yNjvrqiB...
CertificateMIIE8jCCAtqgAwIBAgIQALGszJWGFoPe8nLFOETTgTANBgkqhkiG9w0BAQ0FADAaMRgwFgYDVQQDDA9Bc3luY1JBVCBTZXJ2ZXIwIBcNMjEwMTI4MTYxNjUwWhgPOTk5OTEyMzEyMzU5NTlaMBoxGDAWBgNVBAMMD0FzeW5jUkFUIFNlcnZlcjCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBAJDrBfR/Fl9m31M9X75q/AJCGUUGmJ9HAEzt7oqRvBfIJwQB1+4uhRJrYkRDOUpcmii7kI8wFo7R...
MutexAsyncMutex_6SI8OkPnk
Autorunfalse
Version0.5.7B
Ports (4)6606
7707
8808
4500
C2 (1)127.0.0.1
No Malware configuration.

TRiD

.exe | Generic CIL Executable (.NET, Mono, etc.) (82.9)
.dll | Win32 Dynamic Link Library (generic) (7.4)
.exe | Win32 Executable (generic) (5.1)
.exe | Generic Win/DOS Executable (2.2)
.exe | DOS Executable Generic (2.2)

EXIF

EXE

Comments: Toolwiz TimeFreeze 2017
ProductVersion: Toolwiz TimeFreeze 2017
ProductName: Toolwiz TimeFreeze 2017
OriginalFileName: Setup.exe
LegalTrademarks: Toolwiz.com
LegalCopyright: Copyright (c) 2016 by Toolwiz.com
InternalName: Setup.exe
FileVersion: 4.3.1.5000
FileDescription: Toolwiz TimeFreeze 2017
CompanyName: Toolwiz
CharacterSet: Windows, Latin1
LanguageCode: English (British)
FileSubtype: -
ObjectFileType: Executable application
FileOS: Win32
FileFlags: (none)
FileFlagsMask: 0x003f
ProductVersionNumber: 4.3.1.5000
FileVersionNumber: 4.3.1.5000
Subsystem: Windows GUI
SubsystemVersion: 6
ImageVersion: -
OSVersion: 4
EntryPoint: 0x61b2
UninitializedDataSize: -
InitializedDataSize: 70144
CodeSize: 109056
LinkerVersion: 48
PEType: PE32
TimeStamp: 2039:07:12 17:09:59+02:00
MachineType: Intel 386 or later, and compatibles

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 06-Jun-1903 08:41:43
Detected languages:
  • English - United Kingdom
Debug artifacts:
  • C:\Users\MSG\source\repos\WindowsFormsApp1\WindowsFormsApp1\obj\Debug\WindowsFormsApp1.pdb
CompanyName: Toolwiz
FileDescription: Toolwiz TimeFreeze 2017
FileVersion: 4.3.1.5000
InternalName: Setup.exe
LegalCopyright: Copyright (c) 2016 by Toolwiz.com
LegalTrademarks: Toolwiz.com
OriginalFilename: Setup.exe
ProductName: Toolwiz TimeFreeze 2017
ProductVersion: Toolwiz TimeFreeze 2017
Comments: Toolwiz TimeFreeze 2017

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: 06-Jun-1903 08:41:43
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_EXECUTABLE_IMAGE
  • IMAGE_FILE_LARGE_ADDRESS_AWARE

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00002000
0x0001A9B8
0x0001AA00
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
3.69359
.rsrc
0x0001E000
0x00010EFE
0x00011000
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
3.23581
.reloc
0x00030000
0x0000000C
0x00000200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
0.0815394

Resources

Title
Entropy
Size
Codepage
Language
Type
1
5.00112
490
UNKNOWN
UNKNOWN
RT_MANIFEST
HD
1.98048
20
UNKNOWN
UNKNOWN
RT_GROUP_ICON

Imports

mscoree.dll
No data.
screenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
33
Monitored processes
1
Malicious processes
1
Suspicious processes
0

Behavior graph

Click at the process to see the details
start #ASYNCRAT heur-backdoor.msil.crysan.gen-776a0daa3533b4607295f9f4f875ee8f4d6d323e8a782fac5d3e69fcb6994ac7.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
3992"C:\Users\admin\AppData\Local\Temp\HEUR-Backdoor.MSIL.Crysan.gen-776a0daa3533b4607295f9f4f875ee8f4d6d323e8a782fac5d3e69fcb6994ac7.exe" C:\Users\admin\AppData\Local\Temp\HEUR-Backdoor.MSIL.Crysan.gen-776a0daa3533b4607295f9f4f875ee8f4d6d323e8a782fac5d3e69fcb6994ac7.exe
Explorer.EXE
User:
admin
Company:
Toolwiz
Integrity Level:
MEDIUM
Description:
Toolwiz TimeFreeze 2017
Version:
4.3.1.5000
AsyncRat
(PID) Process(3992) HEUR-Backdoor.MSIL.Crysan.gen-776a0daa3533b4607295f9f4f875ee8f4d6d323e8a782fac5d3e69fcb6994ac7.exe
Install_Folder%AppData%
Saltbfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
Aes_Key6bf5bfecfbfb34020c442e764e9a02a20edfd2b2ec94b839f590fcba30494b4c
BotnetDefault
bdosfalse
PasteBinnull
AntiVMfalse
Server_SignaturejcT2hHERuk9nHJkfGdhcuESvn8AsldNnrD5tnoehBA2Pfjn1rNqQYIzpvBlxrbiLgsEnzcdMZcotGCHHaLYtyUL4DoH/f/veA25TpI3gm8m0fyGQhpNqJQb/P1lauE+re/Lr0Cxsw3uWWqwWbk6rnyk29KlbGdU605enwwKS9LpfkRiEde2OiVA5MOHlyqP6qPiR3KvYHTcnzHjB2MYNkXQWQLeZWXVm3WE/FGglh9CtF1OVIKDJrnArAur4crjMknq2IfeklxldJ9prJRCSQ0wts3evrra/A4M3yNjvrqiB...
CertificateMIIE8jCCAtqgAwIBAgIQALGszJWGFoPe8nLFOETTgTANBgkqhkiG9w0BAQ0FADAaMRgwFgYDVQQDDA9Bc3luY1JBVCBTZXJ2ZXIwIBcNMjEwMTI4MTYxNjUwWhgPOTk5OTEyMzEyMzU5NTlaMBoxGDAWBgNVBAMMD0FzeW5jUkFUIFNlcnZlcjCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBAJDrBfR/Fl9m31M9X75q/AJCGUUGmJ9HAEzt7oqRvBfIJwQB1+4uhRJrYkRDOUpcmii7kI8wFo7R...
MutexAsyncMutex_6SI8OkPnk
Autorunfalse
Version0.5.7B
Ports (4)6606
7707
8808
4500
C2 (1)127.0.0.1
Total events
357
Read events
343
Write events
14
Delete events
0

Modification events

(PID) Process:(3992) HEUR-Backdoor.MSIL.Crysan.gen-776a0daa3533b4607295f9f4f875ee8f4d6d323e8a782fac5d3e69fcb6994ac7.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\16C\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
Executable files
0
Suspicious files
0
Text files
0
Unknown types
0

Dropped files

No data
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
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Reports
HEUR-Backdoor.MSIL.Crysan.gen-776a0daa3533b4607295f9f4f875ee8f4d6d323e8a782fac5d3e69fcb6994ac7.exe