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File name:

AssetsGTA5.exe

Full analysis: https://app.any.run/tasks/443691bb-dc28-486c-a18f-d51bba1b878b
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 20, 2022, 22:06:21
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
trojan
rat
quasar
asyncrat
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5:

9E5700739C047A7D9C4BA8E8BECFEBCA

SHA1:

8E737772F6A4A633341B2E6ACABE992C74D78DD3

SHA256:

D07E2E6F2F51DBFC51E7A7A69BBB15D486B0A7690C74B47952C65FCE8B44833A

SSDEEP:

6144:VTEgdc0Y9X7IxUpGREW3UQtKpIa9VyivRTcEggb8F9I6usUcTR32:VTEgdfYmxU6UrQDbUcd2

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

    • Drops executable file immediately after starts

      • AssetsGTA5.exe (PID: 2944)
    • Changes the autorun value in the registry

      • AssetsGTA5.exe (PID: 2944)
      • WinSub.exe (PID: 3548)
    • ASYNCRAT was detected

      • WinSub.exe (PID: 3548)
    • QUASAR detected by memory dumps

      • WinSub.exe (PID: 3548)
    • QUASAR was detected

      • WinSub.exe (PID: 3548)
    • Connects to CnC server

      • WinSub.exe (PID: 3548)
  • SUSPICIOUS

    • Reads the computer name

      • AssetsGTA5.exe (PID: 2944)
      • WinSub.exe (PID: 3548)
    • Checks supported languages

      • AssetsGTA5.exe (PID: 2944)
      • WinSub.exe (PID: 3548)
    • Reads Environment values

      • AssetsGTA5.exe (PID: 2944)
      • WinSub.exe (PID: 3548)
    • Executable content was dropped or overwritten

      • AssetsGTA5.exe (PID: 2944)
    • Starts itself from another location

      • AssetsGTA5.exe (PID: 2944)
    • Drops a file with a compile date too recent

      • AssetsGTA5.exe (PID: 2944)
    • Creates files in the user directory

      • AssetsGTA5.exe (PID: 2944)
  • INFO

    • Reads settings of System Certificates

      • WinSub.exe (PID: 3548)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report

Quasar

(PID) Process(3548) WinSub.exe
CertificateMIIE9DCCAtygAwIBAgIQANoFvnfgVRWhYu+eDue9VzANBgkqhkiG9w0BAQ0FADAbMRkwFwYDVQQDDBBRdWFzYXIgU2VydmVyIENBMCAXDTIyMDUwODAxMDgzMVoYDzk5OTkxMjMxMjM1OTU5WjAbMRkwFwYDVQQDDBBRdWFzYXIgU2VydmVyIENBMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAw8CXLeMoaC57RSZOA2UXKoXvTygbUc15/IA9hPMDtgWV6glMzxVXPoQMg0lk0ctufFR7yVwa...
SignatureiB16lSTMdCzW0TJbULiZVT+SOtC909dcpaYxwadJP+Mr2QELGF46scHNE3pHu7rBv8DBxv0dofn9QNRH5UNzTPrpiUZTB0WifwZIFiVf2KFZjFFHK6g/yjX7IRdjiid0xt6a0cAoT5s2TQrrbbUEnBb7BZgVst+JQs3Eb7r6oKmMVc84DPgQ5KlmNQhOh9u30n9ybLaCJCm4fu2z3ocJmPEwXTrTvkfnbIl5f3d29nvtVcacudD0kib9pD1bY74DnhRKSVDps9A5HNtezqZGZs/YeGb1hFYx7qvj5ou0u+pL...
LogDirLogs
TagOffice04
StartupWinSub
Mutexf3e7b920-2f38-41bc-aea9-11f3b09819b3
Install_NameWinSub.exe
Sub_DirSubDir
C2 (2)45.134.140.167:55960
Version1.4.0
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: 1.4.0.0
ProductVersion: 1.4.0
ProductName: Quasar
OriginalFileName: Client.exe
LegalTrademarks: -
LegalCopyright: Copyright © MaxXor 2020
InternalName: Client.exe
FileVersion: 1.4.0
FileDescription: Quasar Client
CompanyName: -
Comments: -
CharacterSet: Unicode
LanguageCode: Neutral
FileSubtype: -
ObjectFileType: Executable application
FileOS: Win32
FileFlags: (none)
FileFlagsMask: 0x003f
ProductVersionNumber: 1.4.0.0
FileVersionNumber: 1.4.0.0
Subsystem: Windows GUI
SubsystemVersion: 4
ImageVersion: -
OSVersion: 4
EntryPoint: 0x7e74e
UninitializedDataSize: -
InitializedDataSize: 3584
CodeSize: 509952
LinkerVersion: 8
PEType: PE32
TimeStamp: 2020:06:05 17:59:49+02:00
MachineType: Intel 386 or later, and compatibles

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 05-Jun-2020 15:59:49
Comments: -
CompanyName: -
FileDescription: Quasar Client
FileVersion: 1.4.0
InternalName: Client.exe
LegalCopyright: Copyright © MaxXor 2020
LegalTrademarks: -
OriginalFilename: Client.exe
ProductName: Quasar
ProductVersion: 1.4.0
Assembly Version: 1.4.0.0

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: 05-Jun-2020 15:59:49
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
0x0007C754
0x0007C800
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.16779
.rsrc
0x00080000
0x00000A93
0x00000C00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
4.6519
.reloc
0x00082000
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
5.18029
1751
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
35
Monitored processes
2
Malicious processes
2
Suspicious processes
0

Behavior graph

Click at the process to see the details
drop and start start assetsgta5.exe #QUASAR winsub.exe

Process information

PID
CMD
Path
Indicators
Parent process
2944"C:\Users\admin\AppData\Local\Temp\AssetsGTA5.exe" C:\Users\admin\AppData\Local\Temp\AssetsGTA5.exe
Explorer.EXE
User:
admin
Integrity Level:
MEDIUM
Description:
Quasar Client
Exit code:
0
Version:
1.4.0
Modules
Images
c:\users\admin\appdata\local\temp\assetsgta5.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\mscoree.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\rpcrt4.dll
c:\windows\microsoft.net\framework\v4.0.30319\mscoreei.dll
3548"C:\Users\admin\AppData\Roaming\SubDir\WinSub.exe"C:\Users\admin\AppData\Roaming\SubDir\WinSub.exe
AssetsGTA5.exe
User:
admin
Integrity Level:
MEDIUM
Description:
Quasar Client
Version:
1.4.0
Modules
Images
c:\users\admin\appdata\roaming\subdir\winsub.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\mscoree.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\rpcrt4.dll
c:\windows\microsoft.net\framework\v4.0.30319\mscoreei.dll
Quasar
(PID) Process(3548) WinSub.exe
CertificateMIIE9DCCAtygAwIBAgIQANoFvnfgVRWhYu+eDue9VzANBgkqhkiG9w0BAQ0FADAbMRkwFwYDVQQDDBBRdWFzYXIgU2VydmVyIENBMCAXDTIyMDUwODAxMDgzMVoYDzk5OTkxMjMxMjM1OTU5WjAbMRkwFwYDVQQDDBBRdWFzYXIgU2VydmVyIENBMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAw8CXLeMoaC57RSZOA2UXKoXvTygbUc15/IA9hPMDtgWV6glMzxVXPoQMg0lk0ctufFR7yVwa...
SignatureiB16lSTMdCzW0TJbULiZVT+SOtC909dcpaYxwadJP+Mr2QELGF46scHNE3pHu7rBv8DBxv0dofn9QNRH5UNzTPrpiUZTB0WifwZIFiVf2KFZjFFHK6g/yjX7IRdjiid0xt6a0cAoT5s2TQrrbbUEnBb7BZgVst+JQs3Eb7r6oKmMVc84DPgQ5KlmNQhOh9u30n9ybLaCJCm4fu2z3ocJmPEwXTrTvkfnbIl5f3d29nvtVcacudD0kib9pD1bY74DnhRKSVDps9A5HNtezqZGZs/YeGb1hFYx7qvj5ou0u+pL...
LogDirLogs
TagOffice04
StartupWinSub
Mutexf3e7b920-2f38-41bc-aea9-11f3b09819b3
Install_NameWinSub.exe
Sub_DirSubDir
C2 (2)45.134.140.167:55960
Version1.4.0
Total events
5 311
Read events
5 269
Write events
42
Delete events
0

Modification events

(PID) Process:(2944) AssetsGTA5.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\16C\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(2944) AssetsGTA5.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
Operation:writeName:WinSub
Value:
"C:\Users\admin\AppData\Local\Temp\AssetsGTA5.exe"
(PID) Process:(3548) WinSub.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\16C\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(3548) WinSub.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
Operation:writeName:WinSub
Value:
"C:\Users\admin\AppData\Roaming\SubDir\WinSub.exe"
(PID) Process:(3548) WinSub.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\WinSub_RASAPI32
Operation:writeName:EnableFileTracing
Value:
0
(PID) Process:(3548) WinSub.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\WinSub_RASAPI32
Operation:writeName:EnableConsoleTracing
Value:
0
(PID) Process:(3548) WinSub.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\WinSub_RASAPI32
Operation:writeName:FileTracingMask
Value:
(PID) Process:(3548) WinSub.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\WinSub_RASAPI32
Operation:writeName:ConsoleTracingMask
Value:
(PID) Process:(3548) WinSub.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\WinSub_RASAPI32
Operation:writeName:MaxFileSize
Value:
1048576
(PID) Process:(3548) WinSub.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\WinSub_RASAPI32
Operation:writeName:FileDirectory
Value:
%windir%\tracing
Executable files
1
Suspicious files
3
Text files
0
Unknown types
1

Dropped files

PID
Process
Filename
Type
2944AssetsGTA5.exeC:\Users\admin\AppData\Roaming\SubDir\WinSub.exeexecutable
MD5:9E5700739C047A7D9C4BA8E8BECFEBCA
SHA256:D07E2E6F2F51DBFC51E7A7A69BBB15D486B0A7690C74B47952C65FCE8B44833A
3548WinSub.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\77EC63BDA74BD0D0E0426DC8F8008506compressed
MD5:B9F21D8DB36E88831E5352BB82C438B3
SHA256:998E0209690A48ED33B79AF30FC13851E3E3416BED97E3679B6030C10CAB361E
3548WinSub.exeC:\Users\admin\AppData\Local\Temp\Cab85AC.tmpcompressed
MD5:B9F21D8DB36E88831E5352BB82C438B3
SHA256:998E0209690A48ED33B79AF30FC13851E3E3416BED97E3679B6030C10CAB361E
3548WinSub.exeC:\Users\admin\AppData\Local\Temp\Tar85AD.tmpcat
MD5:E721613517543768F0DE47A6EEEE3475
SHA256:3163B82D1289693122EF99ED6C3C1911F68AA2A7296907CEBF84C897141CED4E
3548WinSub.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\77EC63BDA74BD0D0E0426DC8F8008506binary
MD5:B2398E404A8B5C56B11A384BCD4E880C
SHA256:79EB24F7BADA7D5BD6B762CAE844123A28CC14B3820620CC3693CB6FF761303C
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
7
DNS requests
3
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
3548
WinSub.exe
GET
200
93.184.221.240:80
http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab?dc27e6427328c7fb
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
3548
WinSub.exe
185.172.148.96:443
tools.keycdn.com
proinity GmbH
DE
suspicious
3548
WinSub.exe
45.134.140.167:55960
malicious
3548
WinSub.exe
93.184.221.240:80
ctldl.windowsupdate.com
MCI Communications Services, Inc. d/b/a Verizon Business
US
whitelisted
3548
WinSub.exe
3.220.57.224:443
api.ipify.org
US
malicious

DNS requests

Domain
IP
Reputation
ctldl.windowsupdate.com
  • 93.184.221.240
whitelisted
tools.keycdn.com
  • 185.172.148.96
suspicious
api.ipify.org
  • 3.220.57.224
  • 3.232.242.170
  • 52.20.78.240
  • 54.91.59.199
shared

Threats

PID
Process
Class
Message
3548
WinSub.exe
A Network Trojan was detected
ET TROJAN Observed Malicious SSL Cert (Quasar CnC)
3548
WinSub.exe
A Network Trojan was detected
ET TROJAN Generic AsyncRAT Style SSL Cert
3548
WinSub.exe
A Network Trojan was detected
ET TROJAN Observed Malicious SSL Cert (Quasar CnC)
3548
WinSub.exe
A Network Trojan was detected
ET TROJAN Generic AsyncRAT Style SSL Cert
3548
WinSub.exe
A Network Trojan was detected
ET TROJAN Observed Malicious SSL Cert (Quasar CnC)
1 ETPRO signatures available at the full report
No debug info