File name:

LittleInstaller

Full analysis: https://app.any.run/tasks/62ff7e1f-e7f4-4e02-b457-a6eb4301c904
Verdict: Malicious activity
Analysis date: October 15, 2019, 08:34:29
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:

B9EA14A38EA5455E821E6EF88D7A8E6E

SHA1:

DBC99A4D92656B61CBBFAE89B2E2A8EE1C6BCACC

SHA256:

1CA1FD1120765247CC9F19836A38D4140210471A2EF9EA8561364414CE046006

SSDEEP:

24576:Ny0e3FgkHdGwwpUjTtIvvzic9ZtkN2GOXYt:NPe3FgsxwpUjTtIvvzic9ZtkN2G/t

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

    • Loads dropped or rewritten executable

      • svchost.exe (PID: 864)
      • explorer.exe (PID: 352)
      • csrss.exe (PID: 404)

    • Application was dropped or rewritten from another process

      • Avast Driver Updater.exe (PID: 1752)

    • Loads the Task Scheduler DLL interface

      • Avast Driver Updater.exe (PID: 1752)

  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • msiexec.exe (PID: 4024)
      • Avast Driver Updater.exe (PID: 1752)

    • Loads DLL from Mozilla Firefox

      • csrss.exe (PID: 404)

    • Removes files from Windows directory

      • Avast Driver Updater.exe (PID: 1752)

    • Creates files in the Windows directory

      • Avast Driver Updater.exe (PID: 1752)
      • svchost.exe (PID: 864)

    • Creates files in the driver directory

      • Avast Driver Updater.exe (PID: 1752)

    • Creates or modifies windows services

      • Avast Driver Updater.exe (PID: 1752)

    • Creates files in the program directory

      • svchost.exe (PID: 864)

    • Executed via COM

      • unsecapp.exe (PID: 3124)

    • Reads Internet Cache Settings

      • Avast Driver Updater.exe (PID: 1752)

    • Searches for installed software

      • Avast Driver Updater.exe (PID: 1752)

  • INFO

    • Creates a software uninstall entry

      • msiexec.exe (PID: 4024)

    • Loads dropped or rewritten executable

      • MsiExec.exe (PID: 3148)

    • Application launched itself

      • msiexec.exe (PID: 4024)

    • Creates files in the program directory

      • msiexec.exe (PID: 4024)
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

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2019:04:10 21:41:30+02:00
PEType: PE32
LinkerVersion: 8
CodeSize: 385024
InitializedDataSize: 995328
UninitializedDataSize: -
EntryPoint: 0x3aa5e
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI
FileVersionNumber: 2.24.1.0
ProductVersionNumber: 2.24.1.0
FileFlagsMask: 0x003f
FileFlags: (none)
FileOS: Windows NT 32-bit
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: English (U.S.)
CharacterSet: Unicode
CompanyName: Slimware Utilities Holdings, Inc.
FileDescription: Avast Driver Updater Setup Wizard
FileVersion: 2.24.1.0
InternalName: LittleInstaller
LegalCopyright: Copyright 2011-2016 Slimware Utilities Holdings, Inc.
OriginalFileName: Avast Driver Updater-setup.exe
ProductName: Avast Driver Updater
ProductVersion: 2.24.1.0

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 10-Apr-2019 19:41:30
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: 2.24.1.0
InternalName: LittleInstaller
LegalCopyright: Copyright 2011-2016 Slimware Utilities Holdings, Inc.
OriginalFilename: Avast Driver Updater-setup.exe
ProductName: Avast Driver Updater
ProductVersion: 2.24.1.0

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: 0x000000E8

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 5
Time date stamp: 10-Apr-2019 19:41:30
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
0x0005DE07
0x0005E000
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.64364
.rdata
0x0005F000
0x00019C42
0x0001A000
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
4.66834
.data
0x00079000
0x000083DC
0x00005000
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
4.10697
.rsrc
0x00082000
0x000C1F26
0x000C2000
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
5.25593
.reloc
0x00144000
0x0000D1EE
0x0000E000
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
4.12932

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
44
Monitored processes
9
Malicious processes
4
Suspicious processes
2

Behavior graph

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

Process information

PID
CMD
Path
Indicators
Parent process
324"C:\Users\admin\AppData\Local\Temp\LittleInstaller.exe" C:\Users\admin\AppData\Local\Temp\LittleInstaller.exe—explorer.exe
User:
admin
Company:
Slimware Utilities Holdings, Inc.
Integrity Level:
MEDIUM
Description:
Avast Driver Updater Setup Wizard
Exit code:
3221226540
Version:
2.24.1.0
Modules
Images
c:\users\admin\appdata\local\temp\littleinstaller.exe
c:\systemroot\system32\ntdll.dll
352C:\Windows\Explorer.EXEC:\Windows\explorer.exe——
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Explorer
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\winanr.dll
c:\windows\system32\mswsock.dll
c:\windows\system32\wshtcpip.dll
c:\windows\explorer.exe
c:\windows\system32\ntdll.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
404%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
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\csrss.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\csrsrv.dll
c:\windows\system32\basesrv.dll
c:\windows\system32\winsrv.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\lpk.dll
736"C:\Users\admin\AppData\Local\Temp\LittleInstaller.exe" C:\Users\admin\AppData\Local\Temp\LittleInstaller.exe
explorer.exe
User:
admin
Company:
Slimware Utilities Holdings, Inc.
Integrity Level:
HIGH
Description:
Avast Driver Updater Setup Wizard
Exit code:
0
Version:
2.24.1.0
Modules
Images
c:\users\admin\appdata\local\temp\littleinstaller.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\psapi.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
864C:\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
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\svchost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\ole32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
1752"C:\Program Files\Avast Driver Updater\Avast Driver Updater.exe"C:\Program Files\Avast Driver Updater\Avast Driver Updater.exe
LittleInstaller.exe
User:
admin
Company:
AVAST Software
Integrity Level:
HIGH
Description:
Avast Driver Updater
Exit code:
0
Version:
2.5.6
Modules
Images
c:\program files\avast driver updater\avast driver updater.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\msimg32.dll
3124C:\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
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\wbem\unsecapp.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\wbemcomn.dll
c:\windows\system32\oleaut32.dll
c:\windows\system32\ole32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
3148C:\Windows\system32\MsiExec.exe -Embedding C90318DE53F40E5F0E4E812EA427C70FC:\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)
Modules
Images
c:\windows\system32\msiexec.exe
c:\systemroot\system32\ntdll.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\system32\user32.dll
c:\windows\system32\gdi32.dll
4024C:\Windows\system32\msiexec.exe /VC:\Windows\system32\msiexec.exe
services.exe
User:
SYSTEM
Company:
Microsoft Corporation
Integrity Level:
SYSTEM
Description:
Windows® installer
Exit code:
0
Version:
5.0.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\msiexec.exe
c:\systemroot\system32\ntdll.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\system32\user32.dll
c:\windows\system32\lpk.dll
Total events
2 974
Read events
2 738
Write events
215
Delete events
21

Modification events

(PID) Process:(736) LittleInstaller.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\SlimWare Utilities Inc
Operation:writeName:MachineID
Value:
B90C8B242361204D82AE62163260F936
(PID) Process:(736) LittleInstaller.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\SlimWare Utilities Inc\Avast Driver Updater
Operation:writeName:BuildNumber
Value:
1
(PID) Process:(736) LittleInstaller.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\12B\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(4024) msiexec.exeKey:HKEY_USERS\S-1-5-21-1302019708-1500728564-335382590-1000_CLASSES\Local Settings\MuiCache\12B\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(4024) msiexec.exeKey:HKEY_USERS\S-1-5-21-1302019708-1500728564-335382590-1000\Software\Microsoft\RestartManager\Session0000
Operation:writeName:Owner
Value:
B80F00006AFF986F3383D501
(PID) Process:(4024) msiexec.exeKey:HKEY_USERS\S-1-5-21-1302019708-1500728564-335382590-1000\Software\Microsoft\RestartManager\Session0000
Operation:writeName:SessionHash
Value:
0C7758677781BA7DBBAB85285228F8C08681F170E9B4024D5EC8D72648118426
(PID) Process:(4024) msiexec.exeKey:HKEY_USERS\S-1-5-21-1302019708-1500728564-335382590-1000\Software\Microsoft\RestartManager\Session0000
Operation:writeName:Sequence
Value:
1
(PID) Process:(4024) msiexec.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\InProgress
Operation:writeName:
Value:
C:\Windows\Installer\39e3c5.ipi
(PID) Process:(4024) msiexec.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\Folders
Operation:writeName:C:\Config.Msi\
Value:
(PID) Process:(4024) msiexec.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\Rollback\Scripts
Operation:writeName:C:\Config.Msi\39e3c6.rbs
Value:
30769979
Executable files
9
Suspicious files
16
Text files
12
Unknown types
7

Dropped files

PID
Process
Filename
Type
736LittleInstaller.exeC:\Users\admin\AppData\Local\Temp\swuB8DB.tmp —
MD5:—
SHA256:—
736LittleInstaller.exeC:\Users\admin\AppData\Local\Temp\swuB8DB.tmp.msi —
MD5:—
SHA256:—
736LittleInstaller.exeC:\Users\admin\AppData\Local\Temp\CabDEC3.tmp —
MD5:—
SHA256:—
736LittleInstaller.exeC:\Users\admin\AppData\Local\Temp\TarDEC4.tmp —
MD5:—
SHA256:—
736LittleInstaller.exeC:\Users\admin\AppData\Local\Temp\CabDED4.tmp —
MD5:—
SHA256:—
736LittleInstaller.exeC:\Users\admin\AppData\Local\Temp\TarDED5.tmp —
MD5:—
SHA256:—
736LittleInstaller.exeC:\Users\admin\AppData\Local\Temp\CabDEE6.tmp —
MD5:—
SHA256:—
736LittleInstaller.exeC:\Users\admin\AppData\Local\Temp\TarDEE7.tmp —
MD5:—
SHA256:—
736LittleInstaller.exeC:\Users\admin\AppData\Local\Temp\CabE188.tmp —
MD5:—
SHA256:—
736LittleInstaller.exeC:\Users\admin\AppData\Local\Temp\TarE189.tmp —
MD5:—
SHA256:—
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
3
TCP/UDP connections
6
DNS requests
5
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
736
LittleInstaller.exe
GET
200
13.35.254.215:80
http://download.driverupdate.net/downloads/avast/AvastDriverUpdater-setup.msi.bz2
US
compressed
3.39 Mb
shared
736
LittleInstaller.exe
GET
200
205.185.216.42:80
http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab
US
compressed
57.0 Kb
whitelisted
1752
Avast Driver Updater.exe
POST
200
54.158.10.23:80
http://apps-api.slimwareutilities.com/rpc/version-info
US
text
298 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
736
LittleInstaller.exe
54.86.231.162:80
apps-api.slimwareutilities.com
Amazon.com, Inc.
US
malicious
3148
MsiExec.exe
216.58.207.78:443
www.google-analytics.com
Google Inc.
US
whitelisted
1752
Avast Driver Updater.exe
216.58.207.78:443
www.google-analytics.com
Google Inc.
US
whitelisted
1752
Avast Driver Updater.exe
54.158.10.23:80
apps-api.slimwareutilities.com
Amazon.com, Inc.
US
malicious
736
LittleInstaller.exe
13.35.254.215:80
download.driverupdate.net
—
US
suspicious
736
LittleInstaller.exe
205.185.216.42:80
www.download.windowsupdate.com
Highwinds Network Group, Inc.
US
whitelisted

DNS requests

Domain
IP
Reputation
apps-api.slimwareutilities.com
  • 54.86.231.162
  • 54.158.10.23
  • 3.208.14.245
malicious
download.driverupdate.net
  • 13.35.254.215
  • 13.35.254.36
  • 13.35.254.105
  • 13.35.254.209
shared
www.download.windowsupdate.com
  • 205.185.216.42
  • 205.185.216.10
whitelisted
www.google-analytics.com
  • 216.58.207.78
whitelisted

Threats

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