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File name:

mkvvkcfw.exe

Full analysis: https://app.any.run/tasks/e996fffb-9049-4c6e-bf76-86211ae66d41
Verdict: Malicious activity
Analysis date: August 12, 2022, 15:09:27
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, UPX compressed
MD5:

CDA13C6A7A6B9CA42A6142A9606C469D

SHA1:

EC3ECD5AD0917376034690F619018492960A1E15

SHA256:

0492C19F21FAE3E2718A78444F2811D6B3524BDECC16A8DCBFE8B0E16DF7A38E

SSDEEP:

196608:wB3e0E5MGzr3RhdJFk2kKVxpH8PIQJXOS/2JSNYPA:whMmGzFt22fpIZOS/A4

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

    • Drops executable file immediately after starts

      • mkvvkcfw.exe (PID: 3256)
      • mkvvkcfw.exe (PID: 3508)
      • svchost.exe (PID: 2268)

    • Changes the autorun value in the registry

      • mkvvkcfw.exe (PID: 3508)

    • Loads dropped or rewritten executable

      • svchost.exe (PID: 3244)
      • mkvvkcfw.exe (PID: 3508)
      • winlogon.exe (PID: 2780)

    • Application was dropped or rewritten from another process

      • winlogon.exe (PID: 2780)

  • SUSPICIOUS

    • Checks supported languages

      • mkvvkcfw.exe (PID: 3256)
      • mkvvkcfw.exe (PID: 3508)
      • svchost.exe (PID: 2268)
      • svchost.exe (PID: 3244)
      • winlogon.exe (PID: 2780)

    • Creates executable files which already exist in Windows

      • mkvvkcfw.exe (PID: 3256)
      • mkvvkcfw.exe (PID: 3508)
      • svchost.exe (PID: 2268)

    • Application launched itself

      • mkvvkcfw.exe (PID: 3256)
      • svchost.exe (PID: 2268)

    • Drops a file with a compile date too recent

      • mkvvkcfw.exe (PID: 3256)
      • mkvvkcfw.exe (PID: 3508)
      • svchost.exe (PID: 2268)

    • Executable content was dropped or overwritten

      • mkvvkcfw.exe (PID: 3256)
      • mkvvkcfw.exe (PID: 3508)
      • svchost.exe (PID: 2268)

    • Reads the computer name

      • mkvvkcfw.exe (PID: 3508)
      • svchost.exe (PID: 3244)
      • winlogon.exe (PID: 2780)

    • Loads Python modules

      • mkvvkcfw.exe (PID: 3508)
      • svchost.exe (PID: 3244)

    • Reads Environment values

      • mkvvkcfw.exe (PID: 3508)
      • svchost.exe (PID: 3244)

    • Starts itself from another location

      • mkvvkcfw.exe (PID: 3508)

  • INFO

    • Dropped object may contain Bitcoin addresses

      • winlogon.exe (PID: 2780)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | UPX compressed Win32 Executable (39.3)
.exe | Win32 EXE Yoda's Crypter (38.6)
.dll | Win32 Dynamic Link Library (generic) (9.5)
.exe | Win32 Executable (generic) (6.5)
.exe | Generic Win/DOS Executable (2.9)

EXIF

EXE

Subsystem: Windows GUI
SubsystemVersion: 5
ImageVersion: -
OSVersion: 5
EntryPoint: 0x3e4f0
UninitializedDataSize: 184320
InitializedDataSize: 61440
CodeSize: 73728
LinkerVersion: 9
PEType: PE32
TimeStamp: 2013:03:23 23:26:55+01:00
MachineType: Intel 386 or later, and compatibles

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 23-Mar-2013 22:26:55

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: 0x000000D8

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 3
Time date stamp: 23-Mar-2013 22:26:55
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_EXECUTABLE_IMAGE
  • IMAGE_FILE_RELOCS_STRIPPED

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
UPX0
0x00001000
0x0002D000
0x00000000
IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
0
UPX1
0x0002E000
0x00012000
0x00011200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
7.98061
.rsrc
0x00040000
0x0000F000
0x0000F000
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
7.5312

Resources

Title
Entropy
Size
Codepage
Language
Type
1
6.15653
3752
UNKNOWN
UNKNOWN
RT_ICON
2
6.44895
2216
UNKNOWN
UNKNOWN
RT_ICON
3
5.77742
1384
UNKNOWN
UNKNOWN
RT_ICON
4
7.95095
38188
UNKNOWN
UNKNOWN
RT_ICON
5
6.0521
9640
UNKNOWN
UNKNOWN
RT_ICON
6
6.15081
4264
UNKNOWN
UNKNOWN
RT_ICON
7
6.39466
1128
UNKNOWN
UNKNOWN
RT_ICON
101
2.71858
104
UNKNOWN
UNKNOWN
RT_GROUP_ICON

Imports

KERNEL32.DLL
USER32.dll
WS2_32.dll
No data.
screenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
40
Monitored processes
5
Malicious processes
5
Suspicious processes
0

Behavior graph

Click at the process to see the details
start drop and start mkvvkcfw.exe mkvvkcfw.exe svchost.exe svchost.exe no specs winlogon.exe

Process information

PID
CMD
Path
Indicators
Parent process
3256"C:\Users\admin\AppData\Local\Temp\mkvvkcfw.exe" C:\Users\admin\AppData\Local\Temp\mkvvkcfw.exe
Explorer.EXE
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\mkvvkcfw.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\ws2_32.dll
3508"C:\Users\admin\AppData\Local\Temp\mkvvkcfw.exe" C:\Users\admin\AppData\Local\Temp\mkvvkcfw.exe
mkvvkcfw.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\mkvvkcfw.exe
c:\windows\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\ws2_32.dll
2268C:\Users\admin\AppData\Roaming\pwo6\svchost.exeC:\Users\admin\AppData\Roaming\pwo6\svchost.exe
mkvvkcfw.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\appdata\roaming\pwo6\svchost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\rpcrt4.dll
3244C:\Users\admin\AppData\Roaming\pwo6\svchost.exeC:\Users\admin\AppData\Roaming\pwo6\svchost.exe—svchost.exe
User:
admin
Integrity Level:
MEDIUM
Modules
Images
c:\windows\system32\kernel32.dll
c:\windows\system32\ntdll.dll
c:\users\admin\appdata\roaming\pwo6\svchost.exe
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\nsi.dll
2780C:\Users\admin\AppData\Local\Temp\_MEI22682\bin\winlogon.exe -SOCKSPort 33156 -ControlPort 33157 -DataDirectory C:\Users\admin\AppData\Roaming\pwo6C:\Users\admin\AppData\Local\Temp\_MEI22682\bin\winlogon.exe
svchost.exe
User:
admin
Integrity Level:
MEDIUM
Modules
Images
c:\users\admin\appdata\local\temp\_mei22682\bin\winlogon.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
c:\windows\system32\rpcrt4.dll
c:\users\admin\appdata\local\temp\_mei22682\bin\libeay32.dll
c:\windows\system32\gdi32.dll
Total events
2 249
Read events
2 248
Write events
1
Delete events
0

Modification events

(PID) Process:(3508) mkvvkcfw.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
Operation:writeName:pwo6
Value:
C:\Users\admin\AppData\Roaming\pwo6\svchost.exe
Executable files
85
Suspicious files
6
Text files
28
Unknown types
0

Dropped files

PID
Process
Filename
Type
3256mkvvkcfw.exeC:\Users\admin\AppData\Local\Temp\_MEI32562\win32pipe.pydexecutable
MD5:B492E1AAA4877AFC14BD50B8BFEB7CBA
SHA256:0D37C9AD5E3EE9A6031AE755AFD4B71A24D08292F5B3121B3DD7C418DEA8A744
3256mkvvkcfw.exeC:\Users\admin\AppData\Local\Temp\_MEI32562\unicodedata.pydexecutable
MD5:A059F0D4F10C583126829E741B612818
SHA256:2015EC241E526089ACCD5F1C2EEE4CB5D0DE996E6DDED71FDEBB2EEC03289ED8
3256mkvvkcfw.exeC:\Users\admin\AppData\Local\Temp\_MEI32562\win32com.shell.shell.pydexecutable
MD5:311AF8755345D435A435FA96A55F2145
SHA256:7CFDCC1FEA438E0B06864369605D0291EA12E6598306F80D27CCB23E122E9E49
3256mkvvkcfw.exeC:\Users\admin\AppData\Local\Temp\_MEI32562\_ctypes.pydexecutable
MD5:DDF742C6C8F900158564A4CDD2E1ED5E
SHA256:AE4ABCF0A4C8B79018F4B6D545809E8CDEAA454375151B13ED5236CA27682B01
3256mkvvkcfw.exeC:\Users\admin\AppData\Local\Temp\_MEI32562\win32file.pydexecutable
MD5:233E204CDD364C4B2A4FBBB3B310ABF0
SHA256:A8501FEC10D3ADA36D01AAC09185A8312DCA7D19D09BBEA598486EDC316D6898
3256mkvvkcfw.exeC:\Users\admin\AppData\Local\Temp\_MEI32562\_ssl.pydexecutable
MD5:B5C856714DEB16A1CE8F41ED71E00E58
SHA256:079DD93C4ABC33295EA8B2CFD4D52D32E9DD61F1D0596DD3B6B5544A0169E2D9
3256mkvvkcfw.exeC:\Users\admin\AppData\Local\Temp\_MEI32562\bz2.pydexecutable
MD5:AEAAF6487BAE3A828225506D80665C4B
SHA256:A5361FB1583B00123B237921E885C53DE284C140FB9D234ED95D6492AEDEC1CF
3256mkvvkcfw.exeC:\Users\admin\AppData\Local\Temp\_MEI32562\win32gui.pydexecutable
MD5:21D919030A29F626219B3DA21D75BD30
SHA256:7A79A5C601D280177AB7F4A9F5BB20D5199AAFCC4EA9ACBC549BCC1A89EB04A8
3256mkvvkcfw.exeC:\Users\admin\AppData\Local\Temp\_MEI32562\_hashlib.pydexecutable
MD5:21917B2F3BB8366103F60675DB9CDA3F
SHA256:27ACC2BAF1B3D5B7F7ED360AD4334E43CB86A3E3DE5A9E5DF1960BB26120B02D
3256mkvvkcfw.exeC:\Users\admin\AppData\Local\Temp\_MEI32562\_multiprocessing.pydexecutable
MD5:F878C3EA3E3F61091EA5889428EB56ED
SHA256:C9B85AB25FE2A60F058FF875C0BB03F885C3988D480621449FBE0755A015156D
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
3
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

PID
Process
IP
Domain
ASN
CN
Reputation
2780
winlogon.exe
171.25.193.9:80
—
Foreningen for digitala fri- och rattigheter
SE
malicious
2780
winlogon.exe
208.83.223.34:80
—
Applied Operations, LLC
US
malicious

DNS requests

No data

Threats

PID
Process
Class
Message
2780
winlogon.exe
Misc Attack
ET TOR Known Tor Relay/Router (Not Exit) Node Traffic group 248
2780
winlogon.exe
Misc activity
ET POLICY TLS possible TOR SSL traffic
No debug info
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Reports
mkvvkcfw.exe