analyze malware
  • Huge database of samples and IOCs
  • Custom VM setup
  • Unlimited submissions
  • Interactive approach
Sign up, it’s free
File name:

AsyncClient.exe

Full analysis: https://app.any.run/tasks/9cbf92cd-ccc2-4eca-989b-1e1532db3850
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 30, 2020, 02:02:42
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:

BFCBFB2ADF07085C32ED013817C11DAE

SHA1:

C47083F960237416CA57692C2295E79CEF04E667

SHA256:

7991BE3442B5A0C72A7CFF9ADB69425F836C4D4E176CB8A041989ED7DBB7DFDE

SSDEEP:

768:EuSyNT3ol7xWUpe+7mo2qLbKjGKG6PIyzjbFgX3iyDlcKQA3v778Qw6gDGfBDZTx:EuSyNT3K522KYDy3bCXS8lcKQA3vnOz4

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

      • AsyncClient.exe (PID: 2960)
    • ASYNCRAT was detected

      • SpaceX.exe (PID: 2380)
  • SUSPICIOUS

    • Starts CMD.EXE for commands execution

      • AsyncClient.exe (PID: 2960)
    • Executable content was dropped or overwritten

      • AsyncClient.exe (PID: 2960)
  • 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: 2020:05:10 07:24:51+02:00
PEType: PE32
LinkerVersion: 8
CodeSize: 43008
InitializedDataSize: 2560
UninitializedDataSize: -
EntryPoint: 0xc74e
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: Stub.exe
LegalCopyright: -
LegalTrademarks: -
OriginalFileName: Stub.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: 10-May-2020 05:24:51
Comments: -
CompanyName: -
FileDescription: -
FileVersion: 1.0.0.0
InternalName: Stub.exe
LegalCopyright: -
LegalTrademarks: -
OriginalFilename: Stub.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: 10-May-2020 05:24:51
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
0x0000A754
0x0000A800
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
5.50593
.rsrc
0x0000E000
0x000007FF
0x00000800
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
4.88507
.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
5.22615
1171
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
39
Monitored processes
4
Malicious processes
3
Suspicious processes
0

Behavior graph

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

Process information

PID
CMD
Path
Indicators
Parent process
2960"C:\Users\admin\AppData\Local\Temp\AsyncClient.exe" C:\Users\admin\AppData\Local\Temp\AsyncClient.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Version:
1.0.0.0
2832cmd /c ""C:\Users\admin\AppData\Local\Temp\tmpE152.tmp.bat""C:\Windows\system32\cmd.exeAsyncClient.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)
3712timeout 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)
2380"C:\Users\admin\AppData\Local\Temp\SpaceX.exe" C:\Users\admin\AppData\Local\Temp\SpaceX.exe
cmd.exe
User:
admin
Integrity Level:
MEDIUM
Version:
1.0.0.0
Total events
56
Read events
35
Write events
21
Delete events
0

Modification events

(PID) Process:(2960) AsyncClient.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\13B\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(2960) AsyncClient.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
Operation:writeName:SpaceX
Value:
"C:\Users\admin\AppData\Local\Temp\SpaceX.exe"
(PID) Process:(2380) SpaceX.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\13B\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
Executable files
1
Suspicious files
4
Text files
1
Unknown types
0

Dropped files

PID
Process
Filename
Type
2380SpaceX.exeC:\Users\admin\AppData\Local\Temp\Cab15.tmp
MD5:
SHA256:
2380SpaceX.exeC:\Users\admin\AppData\Local\Temp\Tar16.tmp
MD5:
SHA256:
2380SpaceX.exeC:\Users\admin\AppData\Local\Temp\Cab27.tmp
MD5:
SHA256:
2380SpaceX.exeC:\Users\admin\AppData\Local\Temp\Tar28.tmp
MD5:
SHA256:
2380SpaceX.exeC:\Users\admin\AppData\Local\Temp\Cab104.tmp
MD5:
SHA256:
2380SpaceX.exeC:\Users\admin\AppData\Local\Temp\Tar105.tmp
MD5:
SHA256:
2380SpaceX.exeC:\Users\admin\AppData\Local\Temp\Cab183.tmp
MD5:
SHA256:
2380SpaceX.exeC:\Users\admin\AppData\Local\Temp\Tar184.tmp
MD5:
SHA256:
2380SpaceX.exeC:\Users\admin\AppData\Local\Temp\Cab1D3.tmp
MD5:
SHA256:
2380SpaceX.exeC:\Users\admin\AppData\Local\Temp\Tar1D4.tmp
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
2380
SpaceX.exe
GET
200
67.27.235.254:80
http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab
US
compressed
57.5 Kb
whitelisted
2380
SpaceX.exe
GET
304
67.27.235.254:80
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
2380
SpaceX.exe
67.27.235.254:80
www.download.windowsupdate.com
Level 3 Communications, Inc.
US
suspicious
2380
SpaceX.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
  • 67.27.235.254
  • 8.253.95.121
  • 67.26.75.254
  • 8.248.147.254
  • 67.27.234.126
whitelisted

Threats

PID
Process
Class
Message
Potentially Bad Traffic
ET POLICY DNS Query to DynDNS Domain *.ddns .net
2380
SpaceX.exe
A Network Trojan was detected
MALWARE [PTsecurity] AsyncRAT
2380
SpaceX.exe
A Network Trojan was detected
ET TROJAN Observed Malicious SSL Cert (AsyncRAT Server)
2380
SpaceX.exe
A Network Trojan was detected
MALWARE [PTsecurity] AsyncRAT
2380
SpaceX.exe
A Network Trojan was detected
SUSPICIOUS [PTsecurity] Possible AsyncRAT SSL certificate
No debug info