General Info

File name

c2a

Full analysis
https://app.any.run/tasks/5e2d7ef9-4eb1-4d46-bf5c-68719cf38c95
Verdict
Malicious activity
Analysis date
4/23/2019, 10:57:17
OS:
Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:

MIME:
application/x-dosexec
File info:
PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows
MD5

1c21115664f9adfdb416450c12885408

SHA1

e99ca2914c9c906cf485e611201c94c1b60e31be

SHA256

83caa46483c166e381fd9832187476b1c92f4d0436d92e9d73caeeb8523fd4ac

SSDEEP

768:IZzU6bakrEddIiSJRZsncDBGoYuozHlzdx:IpUpkT5vZvNYuIzH

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distored by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.

Software environment set and analysis options

Launch configuration

Task duration
60 seconds
Additional time used
none
Fakenet option
off
Heavy Evaision option
off
MITM proxy
off
Route via Tor
off
Network geolocation
off
Privacy
Public submission
Autoconfirmation of UAC
on

Software preset

  • Internet Explorer 8.0.7601.17514
  • Adobe Acrobat Reader DC MUI (15.023.20070)
  • Adobe Flash Player 26 ActiveX (26.0.0.131)
  • Adobe Flash Player 26 NPAPI (26.0.0.131)
  • Adobe Flash Player 26 PPAPI (26.0.0.131)
  • Adobe Refresh Manager (1.8.0)
  • CCleaner (5.35)
  • FileZilla Client 3.36.0 (3.36.0)
  • Google Chrome (73.0.3683.75)
  • Google Update Helper (1.3.33.23)
  • Java 8 Update 92 (8.0.920.14)
  • Java Auto Updater (2.8.92.14)
  • Microsoft .NET Framework 4.6.1 (4.6.01055)
  • Microsoft Office Access MUI (English) 2010 (14.0.6029.1000)
  • Microsoft Office Access Setup Metadata MUI (English) 2010 (14.0.6029.1000)
  • Microsoft Office Excel MUI (English) 2010 (14.0.6029.1000)
  • Microsoft Office OneNote MUI (English) 2010 (14.0.6029.1000)
  • Microsoft Office Outlook MUI (English) 2010 (14.0.6029.1000)
  • Microsoft Office PowerPoint MUI (English) 2010 (14.0.6029.1000)
  • Microsoft Office Professional 2010 (14.0.6029.1000)
  • Microsoft Office Proof (English) 2010 (14.0.6029.1000)
  • Microsoft Office Proof (French) 2010 (14.0.6029.1000)
  • Microsoft Office Proof (Spanish) 2010 (14.0.6029.1000)
  • Microsoft Office Proofing (English) 2010 (14.0.6029.1000)
  • Microsoft Office Publisher MUI (English) 2010 (14.0.6029.1000)
  • Microsoft Office Shared MUI (English) 2010 (14.0.6029.1000)
  • Microsoft Office Shared Setup Metadata MUI (English) 2010 (14.0.6029.1000)
  • Microsoft Office Single Image 2010 (14.0.6029.1000)
  • Microsoft Office Word MUI (English) 2010 (14.0.6029.1000)
  • Microsoft Visual C++ 2008 Redistributable - x86 9.0.30729.6161 (9.0.30729.6161)
  • Microsoft Visual C++ 2010 x86 Redistributable - 10.0.40219 (10.0.40219)
  • Microsoft Visual C++ 2013 Redistributable (x86) - 12.0.30501 (12.0.30501.0)
  • Microsoft Visual C++ 2013 x86 Additional Runtime - 12.0.21005 (12.0.21005)
  • Microsoft Visual C++ 2013 x86 Minimum Runtime - 12.0.21005 (12.0.21005)
  • Microsoft Visual C++ 2017 Redistributable (x86) - 14.15.26706 (14.15.26706.0)
  • Microsoft Visual C++ 2017 x86 Additional Runtime - 14.15.26706 (14.15.26706)
  • Microsoft Visual C++ 2017 x86 Minimum Runtime - 14.15.26706 (14.15.26706)
  • Mozilla Firefox 65.0.2 (x86 en-US) (65.0.2)
  • Notepad++ (32-bit x86) (7.5.1)
  • Opera 12.15 (12.15.1748)
  • Skype version 8.29 (8.29)
  • VLC media player (2.2.6)
  • WinRAR 5.60 (32-bit) (5.60.0)

Hotfixes

  • Client LanguagePack Package
  • Client Refresh LanguagePack Package
  • CodecPack Basic Package
  • Foundation Package
  • IE Troubleshooters Package
  • InternetExplorer Optional Package
  • KB2534111
  • KB2999226
  • KB976902
  • LocalPack AU Package
  • LocalPack CA Package
  • LocalPack GB Package
  • LocalPack US Package
  • LocalPack ZA Package
  • ProfessionalEdition
  • UltimateEdition

Behavior activities

MALICIOUS SUSPICIOUS INFO
Changes the Startup folder
  • REG.exe (PID: 592)
Executable content was dropped or overwritten
  • c2a.exe (PID: 2552)
Creates files in the program directory
  • c2a.exe (PID: 2552)
Uses REG.EXE to modify Windows registry
  • vnren.exe (PID: 2860)

No info indicators.

Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report

Static information

TRiD
.exe
|   MinGW32 C/C++ Executable (76.3%)
.exe
|   Win32 Executable MS Visual C++ (generic) (9.7%)
.exe
|   Win64 Executable (generic) (8.5%)
.dll
|   Win32 Dynamic Link Library (generic) (2%)
.exe
|   Win32 Executable (generic) (1.4%)
EXIF
EXE
MachineType:
Intel 386 or later, and compatibles
TimeStamp:
2019:03:28 20:25:37+01:00
PEType:
PE32
LinkerVersion:
2.56
CodeSize:
13824
InitializedDataSize:
24064
UninitializedDataSize:
82432
EntryPoint:
0x1240
OSVersion:
4
ImageVersion:
1
SubsystemVersion:
4
Subsystem:
Windows GUI
Summary
Architecture:
IMAGE_FILE_MACHINE_I386
Subsystem:
IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date:
28-Mar-2019 19:25:37
Debug artifacts
Embedded COFF debugging symbols
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:
0x00000080
PE Headers
Signature:
PE
Machine:
IMAGE_FILE_MACHINE_I386
Number of sections:
5
Time date stamp:
28-Mar-2019 19:25:37
Pointer to Symbol Table:
0x00006200
Number of symbols:
1174
Size of Optional Header:
0x00E0
Characteristics
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DEBUG_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_RELOCS_STRIPPED
Sections
Name Virtual Address Virtual Size Raw Size Charateristics Entropy
.text 0x00001000 0x00003444 0x00003600 IMAGE_SCN_CNT_CODE,IMAGE_SCN_CNT_INITIALIZED_DATA,IMAGE_SCN_MEM_EXECUTE,IMAGE_SCN_MEM_READ 5.40585
.data 0x00005000 0x00001B00 0x00001C00 IMAGE_SCN_CNT_INITIALIZED_DATA,IMAGE_SCN_MEM_READ,IMAGE_SCN_MEM_WRITE 0.97575
.rdata 0x00007000 0x00000110 0x00000200 IMAGE_SCN_CNT_INITIALIZED_DATA,IMAGE_SCN_MEM_READ 3.26143
.bss 0x00008000 0x00014190 0x00000000 IMAGE_SCN_CNT_UNINITIALIZED_DATA,IMAGE_SCN_MEM_READ,IMAGE_SCN_MEM_WRITE 0
.idata 0x0001D000 0x000008A4 0x00000A00 IMAGE_SCN_CNT_INITIALIZED_DATA,IMAGE_SCN_MEM_READ,IMAGE_SCN_MEM_WRITE 4.39684
Resources

No resources.

Imports
    ADVAPI32.DLL

    KERNEL32.dll

    msvcrt.dll

    SHELL32.DLL

    USER32.dll

    WSOCK32.DLL

Exports

    No exports.

Screenshots

Processes

Total processes
34
Monitored processes
3
Malicious processes
0
Suspicious processes
1

Behavior graph

+
drop and start start c2a.exe vnren.exe reg.exe
Specs description
Program did not start
Integrity level elevation
Task сontains an error or was rebooted
Process has crashed
Task contains several apps running
Executable file was dropped
Debug information is available
Process was injected
Network attacks were detected
Application downloaded the executable file
Actions similar to stealing personal data
Behavior similar to exploiting the vulnerability
Inspected object has sucpicious PE structure
File is detected by antivirus software
CPU overrun
RAM overrun
Process starts the services
Process was added to the startup
Behavior similar to spam
Low-level access to the HDD
Probably Tor was used
System was rebooted
Connects to the network
Known threat

Process information

Click at the process to see the details.

PID
2552
CMD
"C:\Users\admin\AppData\Local\Temp\c2a.exe"
Path
C:\Users\admin\AppData\Local\Temp\c2a.exe
Indicators
Parent process
––
User
admin
Integrity Level
MEDIUM
Exit code
0
Version:
Company
Description
Version
Modules
Image
c:\users\admin\appdata\local\temp\c2a.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\shell32.dll
c:\windows\system32\shlwapi.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\wsock32.dll
c:\windows\system32\ws2_32.dll
c:\windows\system32\nsi.dll
c:\windows\system32\imm32.dll
c:\windows\system32\msctf.dll
c:\windows\system32\apphelp.dll
c:\programdata\e7730e88b5\vnren.exe

PID
2860
CMD
c:\programdata\e7730e88b5\vnren.exe
Path
c:\programdata\e7730e88b5\vnren.exe
Indicators
Parent process
c2a.exe
User
admin
Integrity Level
MEDIUM
Version:
Company
Description
Version
Modules
Image
c:\programdata\e7730e88b5\vnren.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\shell32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\shlwapi.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\wsock32.dll
c:\windows\system32\ws2_32.dll
c:\windows\system32\nsi.dll
c:\windows\system32\imm32.dll
c:\windows\system32\msctf.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\sspicli.dll
c:\windows\system32\mswsock.dll
c:\windows\system32\wshtcpip.dll
c:\windows\system32\nlaapi.dll
c:\windows\system32\napinsp.dll
c:\windows\system32\pnrpnsp.dll
c:\windows\system32\dnsapi.dll
c:\windows\system32\winrnr.dll
c:\windows\system32\iphlpapi.dll
c:\windows\system32\winnsi.dll
c:\windows\system32\rasadhlp.dll

PID
592
CMD
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders" /f /v Startup /t REG_SZ /d C:\ProgramData\e7730e88b5
Path
C:\Windows\system32\REG.exe
Indicators
Parent process
vnren.exe
User
admin
Integrity Level
MEDIUM
Exit code
0
Version:
Company
Microsoft Corporation
Description
Registry Console Tool
Version
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Image
c:\windows\system32\reg.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
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\ws2_32.dll
c:\windows\system32\nsi.dll
c:\windows\system32\shlwapi.dll
c:\windows\system32\imm32.dll
c:\windows\system32\msctf.dll

Registry activity

Total events
4
Read events
3
Write events
1
Delete events
0

Modification events

PID
Process
Operation
Key
Name
Value
592
REG.exe
write
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders
Startup
C:\ProgramData\e7730e88b5

Files activity

Executable files
1
Suspicious files
0
Text files
0
Unknown types
0

Dropped files

PID
Process
Filename
Type
2552
c2a.exe
C:\programdata\e7730e88b5\vnren.exe
executable
MD5: 1c21115664f9adfdb416450c12885408
SHA256: 83caa46483c166e381fd9832187476b1c92f4d0436d92e9d73caeeb8523fd4ac
2860
vnren.exe
C:\ProgramData\0
––
MD5:  ––
SHA256:  ––
2552
c2a.exe
C:\programdata\e7730e88b5\vnren.exe:Zone.Identifier
––
MD5:  ––
SHA256:  ––
2552
c2a.exe
C:\ProgramData\0
––
MD5:  ––
SHA256:  ––

Find more information of the staic content and download it at the full report

Network activity

HTTP(S) requests
0
TCP/UDP connections
0
DNS requests
1
Threats
1

HTTP requests

No HTTP requests.

Connections

No connections.

DNS requests

Domain IP Reputation
trickeyes.cf No response unknown

Threats

PID Process Class Message
–– –– Potentially Bad Traffic ET INFO DNS Query for Suspicious .cf Domain

Debug output strings

No debug info.