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File name:

1CA19691316FB0A2EED8994168F00BFA86F1B94C028CA.exe

Full analysis: https://app.any.run/tasks/f427292d-2ea9-4c50-97d6-1e8df9c48ea4
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: August 12, 2022, 14:36:11
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:

1265A8DC0970AB09C4E8108563238911

SHA1:

B4FB4E12F34F3FC6C3FE7FD6CB764FEA6F0823E1

SHA256:

1CA19691316FB0A2EED8994168F00BFA86F1B94C028CA5A83A644FD36AC0F055

SSDEEP:

24576:WbLpW8ubIBBeYOTYNZg8cljdR0eNWQC3n1asUfq+8Lj:WbLpW8u8BwYOTYOlg8eKfJm

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

      • RegAsm.exe (PID: 3372)
    • ASYNCRAT was detected

      • RegAsm.exe (PID: 3372)
  • SUSPICIOUS

    • Reads the computer name

      • 1CA19691316FB0A2EED8994168F00BFA86F1B94C028CA.exe (PID: 924)
      • RegAsm.exe (PID: 3372)
    • Creates files in the program directory

      • 1CA19691316FB0A2EED8994168F00BFA86F1B94C028CA.exe (PID: 924)
    • Checks supported languages

      • RegAsm.exe (PID: 3372)
      • 1CA19691316FB0A2EED8994168F00BFA86F1B94C028CA.exe (PID: 924)
    • Reads Environment values

      • RegAsm.exe (PID: 3372)
  • INFO

    • Reads settings of System Certificates

      • RegAsm.exe (PID: 3372)
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.) (63.1)
.exe | Win64 Executable (generic) (23.8)
.dll | Win32 Dynamic Link Library (generic) (5.6)
.exe | Win32 Executable (generic) (3.8)
.exe | Generic Win/DOS Executable (1.7)

EXIF

EXE

AssemblyVersion: 1.0.0.50
ProductVersion: 1.0.0.50
ProductName: Upgrade
OriginalFileName: Upgrade.exe
LegalTrademarks: Registered trademarks and service marks are the property of their respective owners
LegalCopyright: © 2015 AO Kaspersky Lab. All Rights Reserved.
InternalName: Upgrade.exe
FileVersion: 1.0.0.50
FileDescription: Upgrade
CompanyName: AO Kaspersky Lab
CharacterSet: Unicode
LanguageCode: Neutral
FileSubtype: -
ObjectFileType: Executable application
FileOS: Win32
FileFlags: (none)
FileFlagsMask: 0x003f
ProductVersionNumber: 1.0.0.50
FileVersionNumber: 1.0.0.50
Subsystem: Windows GUI
SubsystemVersion: 4
ImageVersion: -
OSVersion: 4
EntryPoint: 0x10a63e
UninitializedDataSize: -
InitializedDataSize: 149504
CodeSize: 1083392
LinkerVersion: 80
PEType: PE32
TimeStamp: 2085:04:04 15:41:20+02:00
MachineType: Intel 386 or later, and compatibles

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 27-Feb-1949 07:13:04
Detected languages:
  • English - United States
CompanyName: AO Kaspersky Lab
FileDescription: Upgrade
FileVersion: 1.0.0.50
InternalName: Upgrade.exe
LegalCopyright: © 2015 AO Kaspersky Lab. All Rights Reserved.
LegalTrademarks: Registered trademarks and service marks are the property of their respective owners
OriginalFilename: Upgrade.exe
ProductName: Upgrade
ProductVersion: 1.0.0.50
Assembly Version: 1.0.0.50

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: 27-Feb-1949 07:13:04
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_EXECUTABLE_IMAGE
  • IMAGE_FILE_LARGE_ADDRESS_AWARE
  • IMAGE_FILE_LINE_NUMS_STRIPPED
  • IMAGE_FILE_LOCAL_SYMS_STRIPPED

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00002000
0x00108644
0x00108800
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.55165
.rsrc
0x0010C000
0x000245D0
0x00024600
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
3.79375
.reloc
0x00132000
0x0000000C
0x00000200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
0.10191

Resources

Title
Entropy
Size
Codepage
Language
Type
1
5.00112
490
UNKNOWN
UNKNOWN
RT_MANIFEST
2
3.68804
38056
UNKNOWN
UNKNOWN
RT_ICON
3
3.70148
16936
UNKNOWN
UNKNOWN
RT_ICON
4
3.4362
9640
UNKNOWN
UNKNOWN
RT_ICON
5
3.48916
4264
UNKNOWN
UNKNOWN
RT_ICON
6
3.37803
2440
UNKNOWN
UNKNOWN
RT_ICON
7
2.47595
1128
UNKNOWN
UNKNOWN
RT_ICON
8
2.51649
308
UNKNOWN
English - United States
RT_CURSOR
9
2.31114
308
UNKNOWN
English - United States
RT_CURSOR
10
2.34004
308
UNKNOWN
English - United States
RT_CURSOR

Imports

mscoree.dll
No data.
screenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
34
Monitored processes
2
Malicious processes
2
Suspicious processes
0

Behavior graph

Click at the process to see the details
start 1ca19691316fb0a2eed8994168f00bfa86f1b94c028ca.exe no specs #ASYNCRAT regasm.exe

Process information

PID
CMD
Path
Indicators
Parent process
924"C:\Users\admin\AppData\Local\Temp\1CA19691316FB0A2EED8994168F00BFA86F1B94C028CA.exe" C:\Users\admin\AppData\Local\Temp\1CA19691316FB0A2EED8994168F00BFA86F1B94C028CA.exeExplorer.EXE
User:
admin
Company:
AO Kaspersky Lab
Integrity Level:
MEDIUM
Description:
Upgrade
Exit code:
0
Version:
1.0.0.50
3372"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe" YGjdg6652NrC6d9u60euJP3nyc8vPDOgXeh4CAVFU3YQ40CGmGSqD60UGue4HK2cFTTPT35oGWIc4C6k6vpLyiglI9K06NJq8gMKxc2IKrR4L4L40856NFkIJ59iII85Gym415Fp6c2p58eTCu8Lyov3kH3A5CbR3vd4938XtphAM0Q5I6JQSuMpTUj2oU0k53548L2i610DYMJx6DG4OqNRH4MWC8N20W1cXQ4OTFC21bG10HUr2OaBSqYsRSY1NyagUBuce792jG8WvQa0q60ATBAXRTG3J519qSItK80V8NTB94M1tvtyK2cxSyTJFNpg52HrE71uLFp5fg59BfiqHAfJ0Xy3sXg0X0bGXO364o39Y05i517m7Qmja7Sg9Y1y6UG0sp684TXgJT25Sxa07Hca3qk0JLBFEbeOTF61L8OAS9mlWvtRlSGv59S1Om4X81EOI04148rXOCad238xY36KU9we07o9EQ9KX04M9I5a16oDwh45JTIDHLUMTCW92PcB6RTUF8QIK61REt8Vr64745BwQWu233PpAVIGNrsIcq5ahQ74RA0S88RF3d220IQP00BV89GLX9O4FL6MXPp8KYIBmxR48PX3t9S1xIQD7S5LfGYOFSePPSD4jCQeNTMGT4Lrf5hHTiVMW0qEh495X8AqvLCBfJuD6KMU2CCe7gDaI1S4CHY01O3lE1IwA2He3NPMDUDeI1RUhNTFYJVrA80053xnDGnbrWX0VTHQQHq0O6l1hukydaykoHXvDUclVDxWQD6R2F404frO0bpI50u6jYI8YRAX7Fl99vI347M78DqLeo7JwVp83wBB93R1kEtt62JNKqFM4fFA5VcXI2Pr0cnpHbDW5EJ16LHptpU32Y7KmlrWQ0b0TmGTPYQuMYd0BCmHOubKK0ackP0JBOB367juUJtP1D0XRVhC8J03MM343EiQS98TcBaOWlVyYWU025OKd0PmABD5viWOu3T19BcDFA6W32KG4XELdO25yK081LhA0C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
1CA19691316FB0A2EED8994168F00BFA86F1B94C028CA.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft .NET Assembly Registration Utility
Version:
4.0.30319.34209 built by: FX452RTMGDR
Total events
4 772
Read events
4 745
Write events
0
Delete events
0

Modification events

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

Dropped files

PID
Process
Filename
Type
3372RegAsm.exeC:\Users\admin\AppData\Local\Temp\Tar6890.tmpcat
MD5:7EE994C83F2744D702CBA18693ED1758
SHA256:5DB917AB6DC8A42A43617850DFBE2C7F26A7F810B229B349E9DD2A2D615671D2
3372RegAsm.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\77EC63BDA74BD0D0E0426DC8F8008506binary
MD5:8C8BD35B3C1C7E803FBCC2DA71031267
SHA256:C185821A920C12472B42F6F6C35A266DBA25D31FB2B1BFB0BEB065A9EFF743E5
3372RegAsm.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\77EC63BDA74BD0D0E0426DC8F8008506compressed
MD5:589C442FC7A0C70DCA927115A700D41E
SHA256:2E5CB72E9EB43BAAFB6C6BFCC573AAC92F49A8064C483F9D378A9E8E781A526A
9241CA19691316FB0A2EED8994168F00BFA86F1B94C028CA.exeC:\ProgramData\Isolated Storage\164395BC\44538E74binary
MD5:FB28E3DE7FC7EA3E263E789EF97501BA
SHA256:CED9FCD8EB65743CB687F9261B41B5FE7525801752A414F344BB5D2E0B4B666C
3372RegAsm.exeC:\Users\admin\AppData\Local\Temp\Cab688F.tmpcompressed
MD5:589C442FC7A0C70DCA927115A700D41E
SHA256:2E5CB72E9EB43BAAFB6C6BFCC573AAC92F49A8064C483F9D378A9E8E781A526A
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
5
DNS requests
4
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
3372
RegAsm.exe
GET
200
8.241.121.126:80
http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab?b18ed6871078f738
US
compressed
60.2 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
3372
RegAsm.exe
142.250.186.129:443
doc-0k-bk-docs.googleusercontent.com
Google Inc.
US
whitelisted
3372
RegAsm.exe
172.217.16.142:443
www.youtube.com
Google Inc.
US
whitelisted
3372
RegAsm.exe
142.250.185.78:443
www.youtube.com
Google Inc.
US
whitelisted
3372
RegAsm.exe
8.241.121.126:80
ctldl.windowsupdate.com
Level 3 Communications, Inc.
US
suspicious
3372
RegAsm.exe
45.88.79.224:54
malicious

DNS requests

Domain
IP
Reputation
www.youtube.com
  • 142.250.185.78
  • 142.250.185.110
  • 142.250.185.142
  • 142.250.184.238
  • 142.250.185.174
  • 142.250.185.206
  • 142.250.185.238
  • 142.250.186.46
  • 142.250.181.238
  • 142.250.186.110
  • 142.250.186.142
  • 172.217.16.142
  • 142.250.184.206
  • 142.250.186.78
  • 172.217.18.14
  • 142.250.186.174
whitelisted
drive.google.com
  • 172.217.16.142
shared
doc-0k-bk-docs.googleusercontent.com
  • 142.250.186.129
shared
ctldl.windowsupdate.com
  • 8.241.121.126
  • 8.248.137.254
  • 8.253.204.121
  • 8.248.117.254
  • 8.253.95.249
whitelisted

Threats

PID
Process
Class
Message
3372
RegAsm.exe
A Network Trojan was detected
ET TROJAN Observed Malicious SSL Cert (AsyncRAT Server)
3372
RegAsm.exe
A Network Trojan was detected
ET TROJAN Generic AsyncRAT Style SSL Cert
No debug info