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File name:

Client-install.exe

Full analysis: https://app.any.run/tasks/47609cb2-f76c-4cf4-8db1-a474e752c061
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: December 06, 2019, 22:44:09
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
trojan
rat
asyncrat
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5:

EB6B4DDE2BD137C46FB83DC987041CC6

SHA1:

4A5F081762135374A6961E997D55864DBC92D879

SHA256:

9C59D88AEBD140D7D9741AF24E02F3981116D3088198D56FC187CCA4E4B9355A

SSDEEP:

768:ixP8mT8D6flCfGGCMUqhtdtxd63VM0bUzwzpMYZsxJTySvbgKdKdtYcFmVc6K:W0BfCqhtrAdbUz8pMYsJTdPdK1mVcl

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 was detected

      • putty.exe (PID: 2040)
    • Changes the autorun value in the registry

      • Client-install.exe (PID: 2852)
  • SUSPICIOUS

    • Creates files in the user directory

      • Client-install.exe (PID: 2852)
    • Starts CMD.EXE for commands execution

      • Client-install.exe (PID: 2852)
  • 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.) (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

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2086:10:22 21:35:34+02:00
PEType: PE32
LinkerVersion: 48
CodeSize: 45056
InitializedDataSize: 5120
UninitializedDataSize: -
EntryPoint: 0xcf1e
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI
FileVersionNumber: 0.73.0.0
ProductVersionNumber: 0.73.0.0
FileFlagsMask: 0x003f
FileFlags: (none)
FileOS: Win32
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: Neutral
CharacterSet: Unicode
Comments: -
CompanyName: Simon Tatham
FileDescription: SSH, Telnet and Rlogin client
FileVersion: 0.73.0.0
InternalName: PuTTY
LegalCopyright: Copyright © 1997-2019 Simon Tatham.
LegalTrademarks: -
OriginalFileName: PuTTY
ProductName: PuTTY suite
ProductVersion: 0.73.0.0
AssemblyVersion: 0.73.0.0

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 16-Sep-1950 13:07:18
Comments: -
CompanyName: Simon Tatham
FileDescription: SSH, Telnet and Rlogin client
FileVersion: 0.73.0.0
InternalName: PuTTY
LegalCopyright: Copyright © 1997-2019 Simon Tatham.
LegalTrademarks: -
OriginalFilename: PuTTY
ProductName: PuTTY suite
ProductVersion: 0.73.0.0
Assembly Version: 0.73.0.0

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: 16-Sep-1950 13:07:18
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
0x0000AF24
0x0000B000
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
5.71889
.rsrc
0x0000E000
0x0000105C
0x00001200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
5.23579
.reloc
0x00010000
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
5.01077
3146
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
38
Monitored processes
4
Malicious processes
1
Suspicious processes
2

Behavior graph

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

Process information

PID
CMD
Path
Indicators
Parent process
2852"C:\Users\admin\AppData\Local\Temp\Client-install.exe" C:\Users\admin\AppData\Local\Temp\Client-install.exe
explorer.exe
User:
admin
Company:
Simon Tatham
Integrity Level:
MEDIUM
Description:
SSH, Telnet and Rlogin client
Exit code:
0
Version:
0.73.0.0
1316cmd /c ""C:\Users\admin\AppData\Local\Temp\tmp239F.tmp.bat""C:\Windows\system32\cmd.exeClient-install.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)
3788timeout 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)
2040"C:\Users\admin\AppData\Roaming\putty.exe" C:\Users\admin\AppData\Roaming\putty.exe
cmd.exe
User:
admin
Company:
Simon Tatham
Integrity Level:
MEDIUM
Description:
SSH, Telnet and Rlogin client
Version:
0.73.0.0
Total events
179
Read events
152
Write events
27
Delete events
0

Modification events

(PID) Process:(2852) Client-install.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\12B\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(2852) Client-install.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\12B\52C64B7E
Operation:writeName:@%SystemRoot%\system32\p2pcollab.dll,-8042
Value:
Peer to Peer Trust
(PID) Process:(2852) Client-install.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\12B\52C64B7E
Operation:writeName:@%SystemRoot%\system32\qagentrt.dll,-10
Value:
System Health Authentication
(PID) Process:(2852) Client-install.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\12B\52C64B7E
Operation:writeName:@%SystemRoot%\system32\dnsapi.dll,-103
Value:
Domain Name System (DNS) Server Trust
(PID) Process:(2852) Client-install.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\12B\52C64B7E
Operation:writeName:@%SystemRoot%\System32\fveui.dll,-843
Value:
BitLocker Drive Encryption
(PID) Process:(2852) Client-install.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\12B\52C64B7E
Operation:writeName:@%SystemRoot%\System32\fveui.dll,-844
Value:
BitLocker Data Recovery Agent
(PID) Process:(2852) Client-install.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
Operation:writeName:putty
Value:
"C:\Users\admin\AppData\Roaming\putty.exe"
(PID) Process:(2040) putty.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\12B\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(2040) putty.exeKey:HKEY_CURRENT_USER\Software\D04F4D4D0DF87BA77AAE
Operation:writeName:D04F4D4D0DF87BA77AAE
Value:
0
Executable files
0
Suspicious files
4
Text files
1
Unknown types
0

Dropped files

PID
Process
Filename
Type
2852Client-install.exeC:\Users\admin\AppData\Roaming\putty.exe
MD5:
SHA256:
2040putty.exeC:\Users\admin\AppData\Local\Temp\Cab5BA7.tmp
MD5:
SHA256:
2040putty.exeC:\Users\admin\AppData\Local\Temp\Tar5BA8.tmp
MD5:
SHA256:
2040putty.exeC:\Users\admin\AppData\Local\Temp\Cab5BC8.tmp
MD5:
SHA256:
2040putty.exeC:\Users\admin\AppData\Local\Temp\Tar5BC9.tmp
MD5:
SHA256:
2040putty.exeC:\Users\admin\AppData\Local\Temp\Cab5C57.tmp
MD5:
SHA256:
2040putty.exeC:\Users\admin\AppData\Local\Temp\Tar5C58.tmp
MD5:
SHA256:
2852Client-install.exeC:\Users\admin\AppData\Local\Temp\tmp239F.tmp.battext
MD5:00C8B2DF321D951019D3982342F8E9DF
SHA256:6AA8FBC646BE6BB11049FA7410D5787E61E98B0A48BCA1638C010A3DFD136492
2040putty.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015binary
MD5:2AAECC109C1F96F5A5F5FACDA3D2BDA1
SHA256:6CD180309053D3B1DE9F960A2BF6C1EDC542D3EEFE872E9C6A367BCBD106BD22
2040putty.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015compressed
MD5:5AD071A3917588E8CD883B123B395B21
SHA256:DE62965C15528DA598B0079D2D20D953DD6F71B13A23807BFF0666D03F69C0FA
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
2
DNS requests
1
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
2040
putty.exe
GET
200
205.185.216.42:80
http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab
US
compressed
57.4 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
2040
putty.exe
205.185.216.42:80
www.download.windowsupdate.com
Highwinds Network Group, Inc.
US
whitelisted
2040
putty.exe
13.56.12.247:8100
Amazon.com, Inc.
US
malicious

DNS requests

Domain
IP
Reputation
www.download.windowsupdate.com
  • 205.185.216.42
  • 205.185.216.10
whitelisted

Threats

PID
Process
Class
Message
2040
putty.exe
A Network Trojan was detected
MALWARE [PTsecurity] AsyncRAT
2040
putty.exe
A Network Trojan was detected
MALWARE [PTsecurity] AsyncRAT
1 ETPRO signatures available at the full report
No debug info