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download:

avastdriverupdater.exe

Full analysis: https://app.any.run/tasks/74ce9e8a-8486-4438-b451-957922572a81
Verdict: Malicious activity
Analysis date: February 10, 2019, 15:33:11
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386, for MS Windows
MD5:

9517246195B07FE8F4E6AD34556699F9

SHA1:

CDDE928F62803334B14FE9CB59D35745323CE628

SHA256:

03C0B95C3AEDFFF07D292A47402EB9CE4EDF96B7A2E53FE58B88AE2C5BD59539

SSDEEP:

12288:LUjXV1+uVs2W8B0EHgs628H7kzT34drrrrIofcKBO:wBAtL7kzT34drrrrFcKBO

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 settings of System certificates

      • MsiExec.exe (PID: 2192)

    • Loads dropped or rewritten executable

      • csrss.exe (PID: 400)
      • svchost.exe (PID: 844)
      • explorer.exe (PID: 116)

    • Application was dropped or rewritten from another process

      • Avast Driver Updater.exe (PID: 3348)

    • Loads the Task Scheduler DLL interface

      • Avast Driver Updater.exe (PID: 3348)

  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • msiexec.exe (PID: 2652)
      • Avast Driver Updater.exe (PID: 3348)

    • Adds / modifies Windows certificates

      • MsiExec.exe (PID: 2192)

    • Creates files in the Windows directory

      • Avast Driver Updater.exe (PID: 3348)
      • svchost.exe (PID: 844)

    • Creates files in the driver directory

      • Avast Driver Updater.exe (PID: 3348)

    • Removes files from Windows directory

      • Avast Driver Updater.exe (PID: 3348)

    • Creates or modifies windows services

      • Avast Driver Updater.exe (PID: 3348)

    • Creates files in the program directory

      • svchost.exe (PID: 844)

    • Reads Internet Cache Settings

      • Avast Driver Updater.exe (PID: 3348)

    • Searches for installed software

      • Avast Driver Updater.exe (PID: 3348)

  • INFO

    • Loads dropped or rewritten executable

      • MsiExec.exe (PID: 2192)

    • Creates files in the program directory

      • msiexec.exe (PID: 2652)

    • Application launched itself

      • msiexec.exe (PID: 2652)

    • Creates a software uninstall entry

      • msiexec.exe (PID: 2652)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Win32 Executable MS Visual C++ (generic) (67.4)
.dll | Win32 Dynamic Link Library (generic) (14.2)
.exe | Win32 Executable (generic) (9.7)
.exe | Generic Win/DOS Executable (4.3)
.exe | DOS Executable Generic (4.3)

EXIF

EXE

ProductVersion: 2.23.1
ProductName: Avast Driver Updater
OriginalFileName: Avast Driver Updater-setup.exe
LegalCopyright: Copyright 2011-2016 Slimware Utilities Holdings, Inc.
InternalName: LittleInstaller
FileVersion: 2.23.1
FileDescription: Avast Driver Updater Setup Wizard
CompanyName: Slimware Utilities Holdings, Inc.
CharacterSet: Unicode
LanguageCode: English (U.S.)
FileSubtype: -
ObjectFileType: Executable application
FileOS: Windows NT 32-bit
FileFlags: (none)
FileFlagsMask: 0x003f
ProductVersionNumber: 2.23.1.0
FileVersionNumber: 2.23.1.0
Subsystem: Windows GUI
SubsystemVersion: 4
ImageVersion: -
OSVersion: 4
EntryPoint: 0x3aa63
UninitializedDataSize: -
InitializedDataSize: 606208
CodeSize: 385024
LinkerVersion: 8
PEType: PE32
TimeStamp: 2018:11:28 16:29:37+01:00
MachineType: Intel 386 or later, and compatibles

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 28-Nov-2018 15:29:37
Detected languages:
  • English - United States
  • Japanese - Japan
  • Process Default Language
Debug artifacts:
  • E:\BuildAgent\work\652325c68c8b38d0\bin\Release\LittleInstaller.pdb
CompanyName: Slimware Utilities Holdings, Inc.
FileDescription: Avast Driver Updater Setup Wizard
FileVersion: 2.23.1
InternalName: LittleInstaller
LegalCopyright: Copyright 2011-2016 Slimware Utilities Holdings, Inc.
OriginalFilename: Avast Driver Updater-setup.exe
ProductName: Avast Driver Updater
ProductVersion: 2.23.1

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: 0x000000E8

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 5
Time date stamp: 28-Nov-2018 15:29:37
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
0x00001000
0x0005DE47
0x0005E000
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.64575
.rdata
0x0005F000
0x00019C4A
0x0001A000
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
4.66359
.data
0x00079000
0x000083DC
0x00005000
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
4.10726
.rsrc
0x00082000
0x00062D9E
0x00063000
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
5.3421
.reloc
0x000E5000
0x0000D1EE
0x0000E000
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
4.12632

Resources

Title
Entropy
Size
Codepage
Language
Type
1
3.23702
598
UNKNOWN
UNKNOWN
UNKNOWN
2
2.66886
68
UNKNOWN
Japanese - Japan
RT_STRING
3
3.91366
2216
UNKNOWN
UNKNOWN
RT_ICON
4
3.47151
1384
UNKNOWN
UNKNOWN
RT_ICON
7
4.15611
174
UNKNOWN
Japanese - Japan
RT_STRING
63
4.17327
228
UNKNOWN
Japanese - Japan
RT_STRING
64
4.69236
554
UNKNOWN
Japanese - Japan
RT_STRING
65
4.03979
212
UNKNOWN
Japanese - Japan
RT_STRING
66
4.2619
172
UNKNOWN
Japanese - Japan
RT_STRING
67
4.21069
300
UNKNOWN
Japanese - Japan
RT_STRING

Imports

ADVAPI32.dll
COMCTL32.dll
COMDLG32.dll
CRYPT32.dll (delay-loaded)
GDI32.dll
KERNEL32.dll
OLEAUT32.dll
PSAPI.DLL
SHELL32.dll
SHLWAPI.dll
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
39
Monitored processes
9
Malicious processes
4
Suspicious processes
1

Behavior graph

Click at the process to see the details
start avastdriverupdater.exe no specs avastdriverupdater.exe msiexec.exe msiexec.exe svchost.exe explorer.exe no specs avast driver updater.exe csrss.exe no specs unsecapp.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
2844"C:\Users\admin\AppData\Local\Temp\avastdriverupdater.exe" C:\Users\admin\AppData\Local\Temp\avastdriverupdater.exe—explorer.exe
User:
admin
Company:
Slimware Utilities Holdings, Inc.
Integrity Level:
MEDIUM
Description:
Avast Driver Updater Setup Wizard
Exit code:
3221226540
Version:
2.23.1
4036"C:\Users\admin\AppData\Local\Temp\avastdriverupdater.exe" C:\Users\admin\AppData\Local\Temp\avastdriverupdater.exe
explorer.exe
User:
admin
Company:
Slimware Utilities Holdings, Inc.
Integrity Level:
HIGH
Description:
Avast Driver Updater Setup Wizard
Exit code:
0
Version:
2.23.1
2652C:\Windows\system32\msiexec.exe /VC:\Windows\system32\msiexec.exe
services.exe
User:
SYSTEM
Company:
Microsoft Corporation
Integrity Level:
SYSTEM
Description:
Windows® installer
Version:
5.0.7600.16385 (win7_rtm.090713-1255)
2192C:\Windows\system32\MsiExec.exe -Embedding D0543834D9D4A57186DF76FCB7F1244EC:\Windows\system32\MsiExec.exe
msiexec.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Windows® installer
Exit code:
0
Version:
5.0.7600.16385 (win7_rtm.090713-1255)
844C:\Windows\system32\svchost.exe -k netsvcsC:\Windows\System32\svchost.exe
services.exe
User:
SYSTEM
Company:
Microsoft Corporation
Integrity Level:
SYSTEM
Description:
Host Process for Windows Services
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
116C:\Windows\Explorer.EXEC:\Windows\explorer.exe——
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Explorer
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
3348"C:\Program Files\Avast Driver Updater\Avast Driver Updater.exe"C:\Program Files\Avast Driver Updater\Avast Driver Updater.exe
avastdriverupdater.exe
User:
admin
Company:
AVAST Software
Integrity Level:
HIGH
Description:
Avast Driver Updater
Version:
2.5.5
400%SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,12288,512 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16C:\Windows\System32\csrss.exe——
User:
SYSTEM
Company:
Microsoft Corporation
Integrity Level:
SYSTEM
Description:
Client Server Runtime Process
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
2540C:\Windows\system32\wbem\unsecapp.exe -EmbeddingC:\Windows\system32\wbem\unsecapp.exe—svchost.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Sink to receive asynchronous callbacks for WMI client application
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Total events
1 840
Read events
1 604
Write events
0
Delete events
0

Modification events

No data
Executable files
8
Suspicious files
11
Text files
12
Unknown types
7

Dropped files

PID
Process
Filename
Type
4036avastdriverupdater.exeC:\Users\admin\AppData\Local\Temp\swu9977.tmp —
MD5:—
SHA256:—
4036avastdriverupdater.exeC:\Users\admin\AppData\Local\Temp\swu9977.tmp.msi —
MD5:—
SHA256:—
4036avastdriverupdater.exeC:\Users\admin\AppData\Local\Temp\CabA426.tmp —
MD5:—
SHA256:—
4036avastdriverupdater.exeC:\Users\admin\AppData\Local\Temp\TarA427.tmp —
MD5:—
SHA256:—
4036avastdriverupdater.exeC:\Users\admin\AppData\Local\Temp\CabA438.tmp —
MD5:—
SHA256:—
4036avastdriverupdater.exeC:\Users\admin\AppData\Local\Temp\TarA439.tmp —
MD5:—
SHA256:—
4036avastdriverupdater.exeC:\Users\admin\AppData\Local\Temp\CabA469.tmp —
MD5:—
SHA256:—
4036avastdriverupdater.exeC:\Users\admin\AppData\Local\Temp\TarA46A.tmp —
MD5:—
SHA256:—
4036avastdriverupdater.exeC:\Users\admin\AppData\Local\Temp\CabA507.tmp —
MD5:—
SHA256:—
4036avastdriverupdater.exeC:\Users\admin\AppData\Local\Temp\TarA508.tmp —
MD5:—
SHA256:—
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
4
TCP/UDP connections
6
DNS requests
5
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
3348
Avast Driver Updater.exe
POST
200
52.1.73.23:80
http://apps-api.slimwareutilities.com/rpc/version-info
US
text
298 b
malicious
4036
avastdriverupdater.exe
GET
200
13.32.24.232:80
http://download.driverupdate.net/downloads/avast/AvastDriverUpdater-setup.msi.bz2
US
compressed
3.60 Mb
shared
4036
avastdriverupdater.exe
GET
200
93.184.221.240:80
http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab
US
compressed
55.2 Kb
whitelisted
4036
avastdriverupdater.exe
POST
404
52.1.73.23:80
http://apps-api.slimwareutilities.com/rpc/installer-data-update
US
html
162 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
3348
Avast Driver Updater.exe
216.58.207.78:443
www.google-analytics.com
Google Inc.
US
whitelisted
4036
avastdriverupdater.exe
52.1.73.23:80
apps-api.slimwareutilities.com
Amazon.com, Inc.
US
unknown
2192
MsiExec.exe
216.58.207.78:443
www.google-analytics.com
Google Inc.
US
whitelisted
4036
avastdriverupdater.exe
13.32.24.232:80
download.driverupdate.net
Amazon.com, Inc.
US
unknown
4036
avastdriverupdater.exe
93.184.221.240:80
www.download.windowsupdate.com
MCI Communications Services, Inc. d/b/a Verizon Business
US
whitelisted
3348
Avast Driver Updater.exe
52.1.73.23:80
apps-api.slimwareutilities.com
Amazon.com, Inc.
US
unknown

DNS requests

Domain
IP
Reputation
apps-api.slimwareutilities.com
  • 52.1.73.23
  • 34.236.28.239
  • 52.73.56.201
malicious
download.driverupdate.net
  • 13.32.24.232
  • 13.32.24.140
  • 13.32.24.230
  • 13.32.24.219
shared
www.download.windowsupdate.com
  • 93.184.221.240
whitelisted
www.google-analytics.com
  • 216.58.207.78
whitelisted

Threats

No threats detected
Process
Message
avastdriverupdater.exe
Failed to load SetDefaultDlLDirectories
avastdriverupdater.exe
Failed to load SetDefaultDlLDirectories
avastdriverupdater.exe
Loading C:\Windows\system32\BCRYPT.DLL
avastdriverupdater.exe
Loading C:\Windows\system32\RSAENH.DLL
avastdriverupdater.exe
Loading C:\Windows\system32\CRYPT32.DLL
avastdriverupdater.exe
Loading C:\Windows\system32\MSASN1.DLL
avastdriverupdater.exe
Loading C:\Windows\system32\USERENV.DLL
avastdriverupdater.exe
Loading C:\Windows\system32\WINTRUST.DLL
avastdriverupdater.exe
Loading C:\Windows\system32\GDIPLUS.DLL
avastdriverupdater.exe
Loading C:\Windows\system32\MSI.DLL
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Reports
avastdriverupdater.exe