File name:

concrt140.dll

Full analysis: https://app.any.run/tasks/79e46b75-d783-4e5a-9f9d-d434b49c1ab8
Verdict: Malicious activity
Analysis date: December 23, 2019, 16:47:02
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
MIME: application/x-dosexec
File info: PE32 executable (DLL) (console) Intel 80386, for MS Windows
MD5:

BB7293ADD679A5688FCDD03F44DE4B90

SHA1:

4FFB7D8ACD1BFEC663D99694172C0C8C28A92900

SHA256:

F3093CB216BF8ECC8D869E46D8CDA3AACA28A326CB865CCBEF329E1B13ABC834

SSDEEP:

6144:dTOKU/JVSHU3eFBp0xRe1o7qu0NdtB0ria/greG5Ioh812z/vyRAq:VUm1Zu0b0eaI5IkzET

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: 1800)

  • SUSPICIOUS

    No suspicious indicators.

  • INFO

    • Loads main object executable

      • rundll32.exe (PID: 1316)
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) (64.6)
.dll | Win32 Dynamic Link Library (generic) (15.4)
.exe | Win32 Executable (generic) (10.5)
.exe | Generic Win/DOS Executable (4.6)
.exe | DOS Executable Generic (4.6)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2016:06:10 07:09:19+02:00
PEType: PE32
LinkerVersion: 14
CodeSize: 198656
InitializedDataSize: 29184
UninitializedDataSize: -
EntryPoint: 0x28540
OSVersion: 6
ImageVersion: 10
SubsystemVersion: 6
Subsystem: Windows command line
FileVersionNumber: 14.0.24210.0
ProductVersionNumber: 14.0.24210.0
FileFlagsMask: 0x003f
FileFlags: (none)
FileOS: Win32
ObjectFileType: Dynamic link library
FileSubtype: -
LanguageCode: English (U.S.)
CharacterSet: Unicode
CompanyName: Microsoft Corporation
FileDescription: Microsoft® Concurrency Runtime Library
FileVersion: 14.00.24210.0 built by: VCTOOLSREL
InternalName: concrt140.dll
LegalCopyright: © Microsoft Corporation. All rights reserved.
OriginalFileName: concrt140.dll
ProductName: Microsoft® Visual Studio® 2015
ProductVersion: 14.00.24210.0

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_CUI
Compilation Date: 10-Jun-2016 05:09:19
Detected languages:
  • English - United States
Debug artifacts:
  • concrt140.i386.pdb
CompanyName: Microsoft Corporation
FileDescription: Microsoft® Concurrency Runtime Library
FileVersion: 14.00.24210.0 built by: VCTOOLSREL
InternalName: concrt140.dll
LegalCopyright: © Microsoft Corporation. All rights reserved.
OriginalFilename: concrt140.dll
ProductName: Microsoft® Visual Studio® 2015
ProductVersion: 14.00.24210.0

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: 0x00000108

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 5
Time date stamp: 10-Jun-2016 05:09:19
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
  • IMAGE_FILE_LARGE_ADDRESS_AWARE

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00001000
0x000306DC
0x00030800
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.49716
.data
0x00032000
0x00002EEC
0x00002C00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
4.85544
.idata
0x00035000
0x0000112E
0x00001200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
5.39199
.rsrc
0x00037000
0x00000408
0x00000600
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
2.4523
.reloc
0x00038000
0x000029C4
0x00002A00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
6.49673

Resources

Title
Entropy
Size
Codepage
Language
Type
1
3.46435
936
UNKNOWN
English - United States
RT_VERSION

Imports

KERNEL32.dll
MSVCP140.dll
VCRUNTIME140.dll
api-ms-win-crt-heap-l1-1-0.dll
api-ms-win-crt-math-l1-1-0.dll
api-ms-win-crt-runtime-l1-1-0.dll
api-ms-win-crt-stdio-l1-1-0.dll
api-ms-win-crt-string-l1-1-0.dll

Exports

Title
Ordinal
Address
??0?$_SpinWait@$00@details@Concurrency@@QAE@P6AXXZ@Z
1
0x00009D90
??0?$_SpinWait@$0A@@details@Concurrency@@QAE@P6AXXZ@Z
2
0x00009D90
??0SchedulerPolicy@Concurrency@@QAA@IZZ
3
0x000202D0
??0SchedulerPolicy@Concurrency@@QAE@ABV01@@Z
4
0x00020440
??0SchedulerPolicy@Concurrency@@QAE@XZ
5
0x000202C0
??0_Cancellation_beacon@details@Concurrency@@QAE@XZ
6
0x00010B20
??0_Concurrent_queue_base_v4@details@Concurrency@@IAE@I@Z
7
0x0000E500
??0_Concurrent_queue_iterator_base_v4@details@Concurrency@@IAE@ABV_Concurrent_queue_base_v4@12@@Z
8
0x0000E770
??0_Condition_variable@details@Concurrency@@QAE@XZ
9
0x00011B70
??0_Context@details@Concurrency@@QAE@PAVContext@2@@Z
10
0x00006CE0
No data.
screenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
36
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
1316"C:\Windows\System32\rundll32.exe" "C:\Users\admin\AppData\Local\Temp\concrt140.dll", ??0?$_SpinWait@$00@details@Concurrency@@QAE@P6AXXZ@ZC:\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\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\user32.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\imagehlp.dll
1800C:\Windows\system32\WerFault.exe -u -p 1316 -s 168C:\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\gdi32.dll
c:\windows\system32\user32.dll
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
1800WerFault.exeC:\Users\admin\AppData\Local\Microsoft\Windows\WER\ReportArchive\AppCrash_rundll32.exe_con_94cb8bb94844236ed2ff6b4617f634f5fc9965_0731ed68\Report.werbinary
MD5:—
SHA256:—
1800WerFault.exeC:\Users\admin\AppData\Local\CrashDumps\rundll32.exe.1316.dmpdmp
MD5:—
SHA256:—
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
concrt140.dll