File name:

C:\Users\admin\AppData\Roaming\SubDir\Client.exe

Full analysis: https://app.any.run/tasks/3e3be871-9f58-4511-bce2-82e744043dcc
Verdict: Malicious activity
Threats:

Quasar is a very popular RAT in the world thanks to its code being available in open-source. This malware can be used to control the victim’s computer remotely.

Analysis date: October 31, 2019, 20:52:49
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
evasion
trojan
rat
quasar
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5:

D93A52FC1F430E4FBAFD4D72B40692BA

SHA1:

C394D83C18F26A89D37900384E1976908DC51C97

SHA256:

F1AC8846D47FE7551D4F8D99D8D7BDCAEB7D4E83204C38E08900C97A19170EA6

SSDEEP:

6144:cmAjEG6T6PE+MDHS7wZNngmG28X7GKnuB0KapOZRZQbhyIfqRNuGgXb43+9K9eV8:1KEr+MmHGbgI6LBo+89+AHVMkToq

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

    • QUASAR was detected

      • Client.exe (PID: 2740)
      • Client.exe (PID: 2156)
  • SUSPICIOUS

    • Checks for external IP

      • Client.exe (PID: 2156)
      • Client.exe (PID: 2740)
    • Executable content was dropped or overwritten

      • Client.exe (PID: 2156)
    • Creates files in the user directory

      • Client.exe (PID: 2156)
      • Client.exe (PID: 2740)
    • Starts itself from another location

      • Client.exe (PID: 2156)
  • 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: 2019:10:25 00:04:26+02:00
PEType: PE32
LinkerVersion: 8
CodeSize: 543744
InitializedDataSize: 3072
UninitializedDataSize: -
EntryPoint: 0x86b5e
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI
FileVersionNumber: 1.3.0.0
ProductVersionNumber: 1.3.0.0
FileFlagsMask: 0x003f
FileFlags: (none)
FileOS: Win32
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: Neutral
CharacterSet: Unicode
Comments: -
CompanyName: -
FileDescription: Quasar Client
FileVersion: 1.3.0.0
InternalName: Client.exe
LegalCopyright: Copyright © MaxXor 2018
LegalTrademarks: -
OriginalFileName: Client.exe
ProductName: Quasar
ProductVersion: 1.3.0.0
AssemblyVersion: 1.3.0.0

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 24-Oct-2019 22:04:26
Comments: -
CompanyName: -
FileDescription: Quasar Client
FileVersion: 1.3.0.0
InternalName: Client.exe
LegalCopyright: Copyright © MaxXor 2018
LegalTrademarks: -
OriginalFilename: Client.exe
ProductName: Quasar
ProductVersion: 1.3.0.0
Assembly Version: 1.3.0.0

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: 24-Oct-2019 22:04:26
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
0x00084B64
0x00084C00
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.11562
.rsrc
0x00088000
0x0000083C
0x00000A00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
4.2629
.reloc
0x0008A000
0x0000000C
0x00000200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
0.0980042

Resources

Title
Entropy
Size
Codepage
Language
Type
1
5.18749
1144
UNKNOWN
UNKNOWN
RT_MANIFEST

Imports

mscoree.dll
No data.
screenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
37
Monitored processes
2
Malicious processes
2
Suspicious processes
0

Behavior graph

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

Process information

PID
CMD
Path
Indicators
Parent process
2156"C:\Users\admin\AppData\Local\Temp\Client.exe" C:\Users\admin\AppData\Local\Temp\Client.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Description:
Quasar Client
Exit code:
0
Version:
1.3.0.0
Modules
Images
c:\users\admin\appdata\local\temp\client.exe
c:\systemroot\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\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\microsoft.net\framework\v4.0.30319\mscoreei.dll
2740"C:\Users\admin\AppData\Roaming\SubDir\Client.exe"C:\Users\admin\AppData\Roaming\SubDir\Client.exe
Client.exe
User:
admin
Integrity Level:
MEDIUM
Description:
Quasar Client
Exit code:
0
Version:
1.3.0.0
Modules
Images
c:\users\admin\appdata\roaming\subdir\client.exe
c:\systemroot\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\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\microsoft.net\framework\v4.0.30319\mscoreei.dll
Total events
102
Read events
65
Write events
37
Delete events
0

Modification events

(PID) Process:(2156) Client.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\12B\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(2156) Client.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\12B\52C64B7E
Operation:writeName:@%SystemRoot%\system32\p2pcollab.dll,-8042
Value:
Peer to Peer Trust
(PID) Process:(2156) Client.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\12B\52C64B7E
Operation:writeName:@%SystemRoot%\system32\qagentrt.dll,-10
Value:
System Health Authentication
(PID) Process:(2156) Client.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:(2156) Client.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\12B\52C64B7E
Operation:writeName:@%SystemRoot%\System32\fveui.dll,-843
Value:
BitLocker Drive Encryption
(PID) Process:(2156) Client.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\12B\52C64B7E
Operation:writeName:@%SystemRoot%\System32\fveui.dll,-844
Value:
BitLocker Data Recovery Agent
(PID) Process:(2156) Client.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Client_RASAPI32
Operation:writeName:EnableFileTracing
Value:
0
(PID) Process:(2156) Client.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Client_RASAPI32
Operation:writeName:EnableConsoleTracing
Value:
0
(PID) Process:(2156) Client.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Client_RASAPI32
Operation:writeName:FileTracingMask
Value:
4294901760
(PID) Process:(2156) Client.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Client_RASAPI32
Operation:writeName:ConsoleTracingMask
Value:
4294901760
Executable files
1
Suspicious files
1
Text files
0
Unknown types
0

Dropped files

PID
Process
Filename
Type
2740Client.exeC:\Users\admin\AppData\Roaming\files\10-31-2019binary
MD5:
SHA256:
2156Client.exeC:\Users\admin\AppData\Roaming\SubDir\Client.exeexecutable
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
3
Threats
8

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
2156
Client.exe
GET
200
185.194.141.58:80
http://ip-api.com/json/
DE
text
286 b
malicious
2740
Client.exe
GET
200
185.194.141.58:80
http://ip-api.com/json/
DE
text
286 b
malicious
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
2156
Client.exe
185.194.141.58:80
ip-api.com
netcup GmbH
DE
unknown
2740
Client.exe
185.194.141.58:80
ip-api.com
netcup GmbH
DE
unknown

DNS requests

Domain
IP
Reputation
ip-api.com
  • 185.194.141.58
malicious
dns.msftncsi.com
  • 131.107.255.255
shared

Threats

PID
Process
Class
Message
2156
Client.exe
Potential Corporate Privacy Violation
ET POLICY External IP Lookup ip-api.com
2156
Client.exe
Potential Corporate Privacy Violation
AV POLICY Internal Host Retrieving External IP Address (ip-api. com)
2156
Client.exe
A Network Trojan was detected
REMOTE [PTsecurity] Quasar.RAT IP Lookup
2740
Client.exe
Potential Corporate Privacy Violation
ET POLICY External IP Lookup ip-api.com
2740
Client.exe
Potential Corporate Privacy Violation
AV POLICY Internal Host Retrieving External IP Address (ip-api. com)
2740
Client.exe
A Network Trojan was detected
REMOTE [PTsecurity] Quasar.RAT IP Lookup
2 ETPRO signatures available at the full report
No debug info