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File name:

http://ccleaner.tools.avcdn.net/tools/ccleaner/update/20180205.dll

Full analysis: https://app.any.run/tasks/d153a5d4-fddc-4caa-9d11-e79b4d1b96e9
Verdict: Malicious activity
Analysis date: February 10, 2019, 16:48:57
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
MD5:

FE6F58FB55D9A93502528C3C9BB13A3F

SHA1:

516275DDDBC9E2F056342201B03A0931D93A6239

SHA256:

C427BCF6B065EDF06662E0540E3E9A21C07095184E7BB9D05926DC3B79FC3348

SSDEEP:

12288:KptzeTYZP443n/q6LQX5uNllmSJIbbEcgSZ5MQUszT:KptzeKP443nCuQKgSJITgybUsf

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

      • WerFault.exe (PID: 2080)

  • SUSPICIOUS

    No suspicious indicators.

  • INFO

    • Loads main object executable

      • rundll32.exe (PID: 3028)

    • Application was crashed

      • rundll32.exe (PID: 3028)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Win64 Executable (generic) (76.4)
.exe | Win32 Executable (generic) (12.4)
.exe | Generic Win/DOS Executable (5.5)
.exe | DOS Executable Generic (5.5)

EXIF

EXE

ProductVersion: 1.0.0.1
ProductName: Avast Emergency Update
OriginalFileName: EmUpdate.dll
LegalCopyright: © 2015 AVAST Software s. r. o.
InternalName: EmUpdate
FileVersion: 1.0.0.1
FileDescription: Avast Emergency Update
CompanyName: AVAST Software s. r. o.
CharacterSet: Unicode
LanguageCode: English (U.S.)
FileSubtype: -
ObjectFileType: Dynamic link library
FileOS: Windows NT 32-bit
FileFlags: (none)
FileFlagsMask: 0x003f
ProductVersionNumber: 1.0.0.1
FileVersionNumber: 1.0.0.1
Subsystem: Windows GUI
SubsystemVersion: 5.1
ImageVersion: -
OSVersion: 5.1
EntryPoint: 0x152c0
UninitializedDataSize: -
InitializedDataSize: 134144
CodeSize: 342016
LinkerVersion: 14
PEType: PE32
TimeStamp: 2018:09:10 11:12:47+02:00
MachineType: Intel 386 or later, and compatibles

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 10-Sep-2018 09:12:47
Detected languages:
  • English - United States
TLS Callbacks: 1 callback(s) detected.
Debug artifacts:
  • C:\_av\BUILDS\Release\x86\emupdate.pdb
CompanyName: AVAST Software s. r. o.
FileDescription: Avast Emergency Update
FileVersion: 1.0.0.1
InternalName: EmUpdate
LegalCopyright: © 2015 AVAST Software s. r. o.
OriginalFilename: EmUpdate.dll
ProductName: Avast Emergency Update
ProductVersion: 1.0.0.1

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: 0x00000128

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 6
Time date stamp: 10-Sep-2018 09:12:47
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_DLL
  • IMAGE_FILE_EXECUTABLE_IMAGE

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00001000
0x0005363A
0x00053800
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.64985
.rdata
0x00055000
0x00017FA8
0x00018000
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
5.38269
.data
0x0006D000
0x00003950
0x00002600
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
4.46529
.tls
0x00071000
0x00000002
0x00000200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
0
.rsrc
0x00072000
0x00000538
0x00000600
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
3.7578
.reloc
0x00073000
0x000048C4
0x00004A00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
6.56883

Resources

Title
Entropy
Size
Codepage
Language
Type
1
3.37121
788
UNKNOWN
English - United States
RT_VERSION
2
4.91161
381
UNKNOWN
English - United States
RT_MANIFEST

Imports

ADVAPI32.dll
KERNEL32.dll
SHELL32.dll
SHLWAPI.dll
USER32.dll
VERSION.dll
WINHTTP.dll
ntdll.dll

Exports

Title
Ordinal
Address
ApplyEmUpdate
1
0x00012080
on_avast_dll_unload
2
0x00010800
No data.
screenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
31
Monitored processes
2
Malicious processes
1
Suspicious processes
0

Behavior graph

Click at the process to see the details
start rundll32.exe werfault.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
3028"C:\Windows\System32\rundll32.exe" "C:\Users\admin\20180205.dll", ApplyEmUpdateC:\Windows\System32\rundll32.exe
explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows host process (Rundll32)
Exit code:
3221225477
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
2080C:\Windows\system32\WerFault.exe -u -p 3028 -s 172C:\Windows\system32\WerFault.exe—svchost.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Problem Reporting
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Total events
12
Read events
12
Write events
0
Delete events
0

Modification events

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

Dropped files

PID
Process
Filename
Type
2080WerFault.exeC:\Users\admin\AppData\Local\CrashDumps\rundll32.exe.3028.dmpdmp
MD5:CAE78820D59FE7218BADC4F85FF069B0
SHA256:44B5D479D5C0422727ED62CE6828EA42DBED36BE09C83F717423FC02C6511571
2080WerFault.exeC:\Users\admin\AppData\Local\Microsoft\Windows\WER\ReportArchive\AppCrash_rundll32.exe_201_96395219129ea5d7f6187af7978e8f79c02899cb_0839c876\Report.werbinary
MD5:E84A81329DBD4C34DC276B169FDC55EB
SHA256:8AA5EE656F6C15B890660AA5AF4D118F48481DE0913BCD71C7FE0D53DDA2FCAA
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
0
DNS requests
0
Threats
0

HTTP requests

No HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

No data

DNS requests

No data

Threats

No threats detected
No debug info
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Reports
http://ccleaner.tools.avcdn.net/tools/ccleaner/update/20180205.dll