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File name:

Client.exe

Full analysis: https://app.any.run/tasks/70ae811e-42b7-4a31-8d63-f9957764bac9
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: May 21, 2022, 11:00:02
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
asyncrat
trojan
rat
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5:

1497C2E3C1BA7165044B8FC88346928E

SHA1:

3980B65A105D0EF35A487E9AEC3A8F9A08F4BD60

SHA256:

0DFB4180577BB9BB00C94B2B97BD5D1787859319F00D32822E7DCC75AB2DFEB3

SSDEEP:

1536:b5ZfLgF8Hquz7eeiMl8GbbXwUzGSEVclN:b5ZfLgF8DzieFmGbbX72Y

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

    • Changes the autorun value in the registry

      • Client.exe (PID: 2848)
    • Drops executable file immediately after starts

      • Client.exe (PID: 2848)
    • ASYNCRAT detected by memory dumps

      • xenter.exe (PID: 3808)
    • ASYNCRAT was detected

      • xenter.exe (PID: 3808)
  • SUSPICIOUS

    • Checks supported languages

      • Client.exe (PID: 2848)
      • xenter.exe (PID: 3808)
      • cmd.exe (PID: 3632)
    • Reads the computer name

      • Client.exe (PID: 2848)
      • xenter.exe (PID: 3808)
    • Creates files in the user directory

      • Client.exe (PID: 2848)
    • Executable content was dropped or overwritten

      • Client.exe (PID: 2848)
    • Starts CMD.EXE for commands execution

      • Client.exe (PID: 2848)
    • Reads Environment values

      • xenter.exe (PID: 3808)
    • Drops a file with a compile date too recent

      • Client.exe (PID: 2848)
  • INFO

    • Checks supported languages

      • timeout.exe (PID: 1912)
    • Reads settings of System Certificates

      • xenter.exe (PID: 3808)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report

AsyncRat

(PID) Process(3808) xenter.exe
Install_Folder%AppData%
SaltDcRatByqwqdanchun
Aes_Keyd6b0cc0ce87585dd64bac5f8ebbb6cc18eb469a02756ec3da30060882b6e20ab
Botnetusers
bdostrue
PasteBinhttps://pastebin.com/raw/jiAy0eyJ
AntiVMfalse
Server_SignatureYjG4/3tAgEITgJjkUefuMTI603EjSuzKDRNQz3rF0a7oacrvuF45Lz1q49KRyzVuK8rMhhMAis8VYkVKtfL+Z2AioeCzXqahBfyVldfpMTCSHhaKBEtmf9ojT6w5zue+UKzLdWzuC3FABydygb9VlVNpslx8Xay+Ss4mUlhG4zc=
CertificateMIICMDCCAZmgAwIBAgIVALyHoiYwtwSBGcrLdCD8xEoExlYJMA0GCSqGSIb3DQEBDQUAMGQxFTATBgNVBAMMDERjUmF0IFNlcnZlcjETMBEGA1UECwwKcXdxZGFuY2h1bjEcMBoGA1UECgwTRGNSYXQgQnkgcXdxZGFuY2h1bjELMAkGA1UEBwwCU0gxCzAJBgNVBAYTAkNOMB4XDTIxMDczMDE0MDAyNloXDTMyMDUwODE0MDAyNlowEDEOMAwGA1UEAwwFRGNSYXQwgZ8wDQYJKoZIhvcNAQEBBQADgY0A...
MutexDcRatMutex_qwqdanchun
Autoruntrue
Version1.0.7
Ports (1)null
C2 (1)null
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: 3.56.2.0
ProductVersion: 3.56.2.0
ProductName: FileZilla
OriginalFileName: FileZilla 3
LegalTrademarks: -
LegalCopyright: Copyright (C) 2006-2021
InternalName: FileZilla 3
FileVersion: 3.56.2.0
FileDescription: FileZilla FTP Client
CompanyName: FileZilla Project
Comments: -
CharacterSet: Unicode
LanguageCode: Neutral
FileSubtype: -
ObjectFileType: Executable application
FileOS: Win32
FileFlags: (none)
FileFlagsMask: 0x003f
ProductVersionNumber: 3.56.2.0
FileVersionNumber: 3.56.2.0
Subsystem: Windows GUI
SubsystemVersion: 4
ImageVersion: -
OSVersion: 4
EntryPoint: 0x109ae
UninitializedDataSize: -
InitializedDataSize: 4608
CodeSize: 59904
LinkerVersion: 8
PEType: PE32
TimeStamp: 2022:01:12 04:47:42+01:00
MachineType: Intel 386 or later, and compatibles

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 12-Jan-2022 03:47:42
Comments: -
CompanyName: FileZilla Project
FileDescription: FileZilla FTP Client
FileVersion: 3.56.2.0
InternalName: FileZilla 3
LegalCopyright: Copyright (C) 2006-2021
LegalTrademarks: -
OriginalFilename: FileZilla 3
ProductName: FileZilla
ProductVersion: 3.56.2.0
Assembly Version: 3.56.2.0

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: 12-Jan-2022 03:47:42
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_EXECUTABLE_IMAGE

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00002000
0x0000E9B4
0x0000EA00
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
5.85919
.rsrc
0x00012000
0x00000E88
0x00001000
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
5.28848
.reloc
0x00014000
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
5.13313
2691
Latin 1 / Western European
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
39
Monitored processes
4
Malicious processes
3
Suspicious processes
0

Behavior graph

Click at the process to see the details
start client.exe cmd.exe no specs timeout.exe no specs #ASYNCRAT xenter.exe

Process information

PID
CMD
Path
Indicators
Parent process
2848"C:\Users\admin\Desktop\Client.exe" C:\Users\admin\Desktop\Client.exe
Explorer.EXE
User:
admin
Company:
FileZilla Project
Integrity Level:
MEDIUM
Description:
FileZilla FTP Client
Exit code:
0
Version:
3.56.2.0
3632C:\Windows\system32\cmd.exe /c ""C:\Users\admin\AppData\Local\Temp\tmp514E.tmp.bat""C:\Windows\system32\cmd.exeClient.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Command Processor
Exit code:
1
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
1912timeout 3 C:\Windows\system32\timeout.execmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
timeout - pauses command processing
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
3808"C:\Users\admin\AppData\Roaming\xenter.exe" C:\Users\admin\AppData\Roaming\xenter.exe
cmd.exe
User:
admin
Company:
FileZilla Project
Integrity Level:
MEDIUM
Description:
FileZilla FTP Client
Version:
3.56.2.0
AsyncRat
(PID) Process(3808) xenter.exe
Install_Folder%AppData%
SaltDcRatByqwqdanchun
Aes_Keyd6b0cc0ce87585dd64bac5f8ebbb6cc18eb469a02756ec3da30060882b6e20ab
Botnetusers
bdostrue
PasteBinhttps://pastebin.com/raw/jiAy0eyJ
AntiVMfalse
Server_SignatureYjG4/3tAgEITgJjkUefuMTI603EjSuzKDRNQz3rF0a7oacrvuF45Lz1q49KRyzVuK8rMhhMAis8VYkVKtfL+Z2AioeCzXqahBfyVldfpMTCSHhaKBEtmf9ojT6w5zue+UKzLdWzuC3FABydygb9VlVNpslx8Xay+Ss4mUlhG4zc=
CertificateMIICMDCCAZmgAwIBAgIVALyHoiYwtwSBGcrLdCD8xEoExlYJMA0GCSqGSIb3DQEBDQUAMGQxFTATBgNVBAMMDERjUmF0IFNlcnZlcjETMBEGA1UECwwKcXdxZGFuY2h1bjEcMBoGA1UECgwTRGNSYXQgQnkgcXdxZGFuY2h1bjELMAkGA1UEBwwCU0gxCzAJBgNVBAYTAkNOMB4XDTIxMDczMDE0MDAyNloXDTMyMDUwODE0MDAyNlowEDEOMAwGA1UEAwwFRGNSYXQwgZ8wDQYJKoZIhvcNAQEBBQADgY0A...
MutexDcRatMutex_qwqdanchun
Autoruntrue
Version1.0.7
Ports (1)null
C2 (1)null
Total events
4 702
Read events
4 661
Write events
0
Delete events
0

Modification events

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

Dropped files

PID
Process
Filename
Type
2848Client.exeC:\Users\admin\AppData\Roaming\xenter.exeexecutable
MD5:1497C2E3C1BA7165044B8FC88346928E
SHA256:0DFB4180577BB9BB00C94B2B97BD5D1787859319F00D32822E7DCC75AB2DFEB3
3808xenter.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\77EC63BDA74BD0D0E0426DC8F8008506compressed
MD5:B9F21D8DB36E88831E5352BB82C438B3
SHA256:998E0209690A48ED33B79AF30FC13851E3E3416BED97E3679B6030C10CAB361E
3808xenter.exeC:\Users\admin\AppData\Local\Temp\Tar7CBF.tmpcat
MD5:E721613517543768F0DE47A6EEEE3475
SHA256:3163B82D1289693122EF99ED6C3C1911F68AA2A7296907CEBF84C897141CED4E
3808xenter.exeC:\Users\admin\AppData\Local\Temp\Cab7CBE.tmpcompressed
MD5:B9F21D8DB36E88831E5352BB82C438B3
SHA256:998E0209690A48ED33B79AF30FC13851E3E3416BED97E3679B6030C10CAB361E
2848Client.exeC:\Users\admin\AppData\Local\Temp\tmp514E.tmp.battext
MD5:990E022BFB3214E47E7FCA96F290E684
SHA256:88C145E85EC6BA66978192F91B67FD475DCA6A2A4D97389A2F06E4FA71298D97
3808xenter.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\77EC63BDA74BD0D0E0426DC8F8008506binary
MD5:E6C12D4ADDA671E6528BE670FF1DBE11
SHA256:3A6AE2585121151661D7F177B01FCB65C3B559A10C1C580CB2E8DEE4F5269DDD
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
6
DNS requests
5
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
3808
xenter.exe
GET
200
209.197.3.8:80
http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab?1fb5813d3b5dfb7a
US
compressed
60.0 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
3808
xenter.exe
209.197.3.8:80
ctldl.windowsupdate.com
Highwinds Network Group, Inc.
US
whitelisted
3808
xenter.exe
104.20.67.143:443
pastebin.com
Cloudflare Inc
US
malicious
104.20.68.143:443
pastebin.com
Cloudflare Inc
US
malicious
3808
xenter.exe
3.22.53.161:16961
2.tcp.ngrok.io
US
malicious
3808
xenter.exe
172.67.34.170:443
pastebin.com
US
malicious

DNS requests

Domain
IP
Reputation
pastebin.com
  • 104.20.67.143
  • 104.20.68.143
  • 172.67.34.170
shared
dns.msftncsi.com
  • 131.107.255.255
shared
2.tcp.ngrok.io
  • 3.22.53.161
whitelisted
ctldl.windowsupdate.com
  • 209.197.3.8
whitelisted

Threats

PID
Process
Class
Message
Potential Corporate Privacy Violation
ET POLICY DNS Query to a *.ngrok domain (ngrok.io)
3808
xenter.exe
A Network Trojan was detected
ET TROJAN Observed Malicious SSL Cert (AsyncRAT)
1 ETPRO signatures available at the full report
No debug info