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File name:

Win.exe

Full analysis: https://app.any.run/tasks/26907d4e-c22a-49e8-8eaa-a8d1ecd1e5e4
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: October 20, 2020, 09:59:52
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:

6005C8E52F00801162E3E4A8CC0F7612

SHA1:

296D247E8512B6DDBFE30F253B382F0D10EC783A

SHA256:

C4A2B4F0880EFBAC3FD62B54BC7D4673DF470513300AE5EC0C3CEED381023ECE

SSDEEP:

3072:pw9bRJ39BeBuU2rfnGGrlzvO8Ul/lV/1t4W8Y:pw9b1BeBGGGJzm8Ul/lxn8

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

    • Connects to CnC server

      • Win.exe (PID: 2964)
    • ASYNCRAT was detected

      • Win.exe (PID: 2964)
    • Changes the autorun value in the registry

      • Win.exe (PID: 3076)
  • SUSPICIOUS

    • Creates files in the user directory

      • Win.exe (PID: 3076)
    • Starts CMD.EXE for commands execution

      • Win.exe (PID: 3076)
  • 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

AssemblyVersion: 5.91.0.0
ProductVersion: 5.91.0.0
ProductName: WinRAR
OriginalFileName: WinRAR
LegalTrademarks: -
LegalCopyright: Copyright © Alexander Roshal 1993-2020
InternalName: WinRAR
FileVersion: 5.91.0.0
FileDescription: WinRAR archiver
CompanyName: Alexander Roshal
Comments: -
CharacterSet: Unicode
LanguageCode: Neutral
FileSubtype: -
ObjectFileType: Executable application
FileOS: Win32
FileFlags: (none)
FileFlagsMask: 0x003f
ProductVersionNumber: 5.91.0.0
FileVersionNumber: 5.91.0.0
Subsystem: Windows GUI
SubsystemVersion: 4
ImageVersion: -
OSVersion: 4
EntryPoint: 0xcaee
UninitializedDataSize: -
InitializedDataSize: 82944
CodeSize: 44032
LinkerVersion: 48
PEType: PE32
TimeStamp: 2054:06:06 15:09:48+02:00
MachineType: Intel 386 or later, and compatibles

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 01-May-1918 06:41:32
Comments: -
CompanyName: Alexander Roshal
FileDescription: WinRAR archiver
FileVersion: 5.91.0.0
InternalName: WinRAR
LegalCopyright: Copyright © Alexander Roshal 1993-2020
LegalTrademarks: -
OriginalFilename: WinRAR
ProductName: WinRAR
ProductVersion: 5.91.0.0
Assembly Version: 5.91.0.0

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: 01-May-1918 06:41:32
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
0x0000AAF4
0x0000AC00
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
5.7083
.rsrc
0x0000E000
0x00014020
0x00014200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
7.64016
.reloc
0x00024000
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
2
6.03536
2216
Latin 1 / Western European
UNKNOWN
RT_ICON
3
6.24591
3752
Latin 1 / Western European
UNKNOWN
RT_ICON
4
5.57239
1128
Latin 1 / Western European
UNKNOWN
RT_ICON
5
6.35851
4264
Latin 1 / Western European
UNKNOWN
RT_ICON
6
5.9392
9640
Latin 1 / Western European
UNKNOWN
RT_ICON
7
7.98641
54854
Latin 1 / Western European
UNKNOWN
RT_ICON

Imports

mscoree.dll
No data.
screenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
38
Monitored processes
4
Malicious processes
3
Suspicious processes
0

Behavior graph

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

Process information

PID
CMD
Path
Indicators
Parent process
3076"C:\Users\admin\AppData\Local\Temp\Win.exe" C:\Users\admin\AppData\Local\Temp\Win.exe
explorer.exe
User:
admin
Company:
Alexander Roshal
Integrity Level:
MEDIUM
Description:
WinRAR archiver
Exit code:
0
Version:
5.91.0.0
3492cmd /c ""C:\Users\admin\AppData\Local\Temp\tmp938A.tmp.bat""C:\Windows\system32\cmd.exeWin.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)
2260timeout 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)
2964"C:\Users\admin\AppData\Roaming\Win.exe" C:\Users\admin\AppData\Roaming\Win.exe
cmd.exe
User:
admin
Company:
Alexander Roshal
Integrity Level:
MEDIUM
Description:
WinRAR archiver
Version:
5.91.0.0
Total events
60
Read events
39
Write events
0
Delete events
0

Modification events

No data
Executable files
0
Suspicious files
4
Text files
1
Unknown types
0

Dropped files

PID
Process
Filename
Type
3076Win.exeC:\Users\admin\AppData\Roaming\Win.exe
MD5:
SHA256:
2964Win.exeC:\Users\admin\AppData\Local\Temp\CabC180.tmp
MD5:
SHA256:
2964Win.exeC:\Users\admin\AppData\Local\Temp\TarC181.tmp
MD5:
SHA256:
2964Win.exeC:\Users\admin\AppData\Local\Temp\CabC1A1.tmp
MD5:
SHA256:
2964Win.exeC:\Users\admin\AppData\Local\Temp\TarC1A2.tmp
MD5:
SHA256:
2964Win.exeC:\Users\admin\AppData\Local\Temp\CabC29D.tmp
MD5:
SHA256:
2964Win.exeC:\Users\admin\AppData\Local\Temp\TarC29E.tmp
MD5:
SHA256:
2964Win.exeC:\Users\admin\AppData\Local\Temp\CabC31C.tmp
MD5:
SHA256:
2964Win.exeC:\Users\admin\AppData\Local\Temp\TarC31D.tmp
MD5:
SHA256:
2964Win.exeC:\Users\admin\AppData\Local\Temp\CabC37C.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
2964
Win.exe
GET
200
2.16.106.186:80
http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab
unknown
compressed
57.5 Kb
whitelisted
2964
Win.exe
GET
304
2.16.106.186:80
http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab
unknown
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
2964
Win.exe
2.16.106.186:80
www.download.windowsupdate.com
Akamai International B.V.
whitelisted
2964
Win.exe
193.161.193.99:36979
zxcasd-36979.portmap.host
OOO Bitree Networks
RU
malicious

DNS requests

Domain
IP
Reputation
zxcasd-36979.portmap.host
  • 193.161.193.99
malicious
www.download.windowsupdate.com
  • 2.16.106.186
  • 2.16.106.171
whitelisted

Threats

PID
Process
Class
Message
Potential Corporate Privacy Violation
ET POLICY DNS Query to a Reverse Proxy Service Observed
2964
Win.exe
A Network Trojan was detected
MALWARE [PTsecurity] AsyncRAT
2964
Win.exe
A Network Trojan was detected
ET TROJAN Observed Malicious SSL Cert (AsyncRAT CnC)
2964
Win.exe
A Network Trojan was detected
MALWARE [PTsecurity] AsyncRAT
1 ETPRO signatures available at the full report
No debug info