download:

20170922.dll

Full analysis: https://app.any.run/tasks/420c4fdb-70b3-4039-8d61-2e2668e1a27e
Verdict: Malicious activity
Analysis date: March 13, 2018, 12:57:35
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:

F63929252C89F68873508950086BCE88

SHA1:

8FD1DA636FD3571E5D734829E47EBECE3BDB03DD

SHA256:

39103C3C2C7CABB19E3E4D258D9C88A9A49DF8174338B6F22923D15F16055952

SSDEEP:

6144:grvCP5rSP0gngKP2D+3RSAjtLMpXNRZ/W5vd/42m0Iwkz8aHAOzsjYQ+JwvL:grqRrKFP2ESA0I5Z42m0IFoAKjSJ6

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

    • Application loaded dropped or rewritten executable

      • WerFault.exe (PID: 1016)

  • SUSPICIOUS

    No suspicious indicators.

  • INFO

    • Application was crashed

      • rundll32.exe (PID: 2892)

    • Application loaded main object executable

      • rundll32.exe (PID: 2892)

    • Loads rich edit control libraries

      • WerFault.exe (PID: 1016)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Win32 Executable (generic) (52.9)
.exe | Generic Win/DOS Executable (23.5)
.exe | DOS Executable Generic (23.5)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2017:09:22 16:36:07+02:00
PEType: PE32
LinkerVersion: 14
CodeSize: 265216
InitializedDataSize: 117760
UninitializedDataSize: -
EntryPoint: 0x10230
OSVersion: 5.1
ImageVersion: -
SubsystemVersion: 5.1
Subsystem: Windows GUI
FileVersionNumber: 1.0.0.1
ProductVersionNumber: 1.0.0.1
FileFlagsMask: 0x003f
FileFlags: (none)
FileOS: Windows NT 32-bit
ObjectFileType: Dynamic link library
FileSubtype: -
LanguageCode: English (U.S.)
CharacterSet: Unicode
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

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 22-Sep-2017 14:36:07
Detected languages:
  • English - United States
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: 0x00000118

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 5
Time date stamp: 22-Sep-2017 14:36:07
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
0x00040A6A
0x00040C00
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.65117
.rdata
0x00042000
0x000154DA
0x00015600
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
5.39567
.data
0x00058000
0x000030D8
0x00002000
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
4.44747
.rsrc
0x0005C000
0x00000538
0x00000600
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
3.76253
.reloc
0x0005D000
0x00003C18
0x00003E00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
6.50974

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
WININET.dll

Exports

Title
Ordinal
Address
ApplyEmUpdate
1
0x0000CCF0
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
34
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
1016C:\Windows\system32\WerFault.exe -u -p 2892 -s 176C:\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)
Modules
Images
c:\windows\system32\werfault.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
2892"C:\Windows\System32\rundll32.exe" "C:\Users\admin\AppData\Local\Temp\20170922.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)
Modules
Images
c:\windows\system32\rundll32.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.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\imagehlp.dll
Total events
31
Read events
31
Write events
0
Delete events
0

Modification events

No data
Executable files
0
Suspicious files
1
Text files
4
Unknown types
1

Dropped files

PID
Process
Filename
Type
1016WerFault.exeC:\Users\admin\AppData\Local\Temp\WER7CD7.tmp.mdmp —
MD5:—
SHA256:—
1016WerFault.exeC:\Users\admin\AppData\Local\Microsoft\Windows\WER\ReportQueue\AppCrash_rundll32.exe_201_794f8ef266c02e273ad067ddef32a4faac751f3_cab_03eb7dbf\WER7CD7.tmp.mdmp —
MD5:—
SHA256:—
1016WerFault.exeC:\Users\admin\AppData\Local\Microsoft\Windows\WER\ReportQueue\AppCrash_rundll32.exe_201_794f8ef266c02e273ad067ddef32a4faac751f3_cab_03eb7dbf\WER7B6F.tmp.hdmp —
MD5:—
SHA256:—
1016WerFault.exeC:\Users\admin\AppData\Local\Microsoft\Windows\WER\ReportQueue\AppCrash_rundll32.exe_201_794f8ef266c02e273ad067ddef32a4faac751f3_cab_03eb7dbf\Report.werbinary
MD5:—
SHA256:—
1016WerFault.exeC:\Users\admin\AppData\Local\Temp\WERFA08.tmp.WERInternalMetadata.xmlxml
MD5:—
SHA256:—
1016WerFault.exeC:\Users\admin\AppData\Local\Temp\WER7B00.tmp.appcompat.txtxml
MD5:—
SHA256:—
1016WerFault.exeC:\Users\admin\AppData\Local\Temp\WER7B6F.tmp.hdmpdmp
MD5:—
SHA256:—
1016WerFault.exeC:\Users\admin\AppData\Local\Microsoft\Windows\WER\ReportQueue\AppCrash_rundll32.exe_201_794f8ef266c02e273ad067ddef32a4faac751f3_cab_03eb7dbf\WERFA08.tmp.WERInternalMetadata.xmlxml
MD5:—
SHA256:—
1016WerFault.exeC:\Users\admin\AppData\Local\Microsoft\Windows\WER\ReportQueue\AppCrash_rundll32.exe_201_794f8ef266c02e273ad067ddef32a4faac751f3_cab_03eb7dbf\WER7B00.tmp.appcompat.txtxml
MD5:—
SHA256:—
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
1
DNS requests
1
Threats
1

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
—
—
GET
—
40.70.13.248:80
http://watson.microsoft.com/StageOne/Generic/BEX/rundll32_exe_20170922_dll/6_1_7600_16385/4a5bc637/StackHash_0a9e/0_0_0_0/00000000/00000000/c0000005/00000008.htm?LCID=1033&OS=6.1.7601.2.00010100.1.0.48.17514&SM=DELL&SPN=DELL&BV=DELL&MID=3ADE2C42-4AB9-49B7-B142-BE9AEEA69063
US
—
—
whitelisted
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
—
—
40.70.13.248:80
watson.microsoft.com
Microsoft Corporation
US
whitelisted

DNS requests

Domain
IP
Reputation
watson.microsoft.com
  • 40.70.13.248
whitelisted

Threats

PID
Process
Class
Message
—
—
Potential Corporate Privacy Violation
ET POLICY Application Crash Report Sent to Microsoft
No debug info
Interactive malware hunting service ANY.RUN
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Reports
20170922.dll