File name:

dll1.dll

Full analysis: https://app.any.run/tasks/e839021a-3431-4705-811b-7c615e91b228
Verdict: Malicious activity
Analysis date: November 02, 2021, 08:19:20
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:

73CD683E449B11B9792AEA03997F0229

SHA1:

9F34B81F618FBC2476FF5510681F0D6FB0E3F1C3

SHA256:

71A78EFCF1922385E42405B5A62B4CD81EEFCA688A3472065E01F022D78B67B1

SSDEEP:

12288:P3Cf6O5kY3xYN2Pj13d7aTKcU3RTiLazdD:PyirYKcLT3clazd

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

      • explorer.exe (PID: 3300)

  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • explorer.exe (PID: 3300)

    • Drops a file with too old compile date

      • explorer.exe (PID: 3300)

    • Executed via COM

      • DllHost.exe (PID: 2372)
      • DllHost.exe (PID: 1032)

    • Checks supported languages

      • notepad++.exe (PID: 2172)

  • INFO

    • Reads the computer name

      • explorer.exe (PID: 3300)
      • regsvr32.exe (PID: 3928)
      • WINWORD.EXE (PID: 2772)
      • explorer.exe (PID: 1448)
      • DllHost.exe (PID: 2372)
      • DllHost.exe (PID: 1032)

    • Checks supported languages

      • regsvr32.exe (PID: 3928)
      • explorer.exe (PID: 3300)
      • WINWORD.EXE (PID: 2772)
      • explorer.exe (PID: 1448)
      • DllHost.exe (PID: 2372)
      • DllHost.exe (PID: 1032)

    • Creates files in the user directory

      • WINWORD.EXE (PID: 2772)

    • Manual execution by user

      • WINWORD.EXE (PID: 2772)
      • explorer.exe (PID: 1448)
      • notepad++.exe (PID: 2172)

    • Reads Microsoft Office registry keys

      • WINWORD.EXE (PID: 2772)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Win32 Executable Delphi generic (57.2)
.exe | Win32 Executable (generic) (18.2)
.exe | Win16/32 Executable Delphi generic (8.3)
.exe | Generic Win/DOS Executable (8)
.exe | DOS Executable Generic (8)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 1992:06:20 00:22:17+02:00
PEType: PE32
LinkerVersion: 2.25
CodeSize: 379392
InitializedDataSize: 206336
UninitializedDataSize: -
EntryPoint: 0x5d6a4
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 19-Jun-1992 22:22:17
Detected languages:
  • English - United States

DOS Header

Magic number: MZ
Bytes on last page of file: 0x0050
Pages in file: 0x0002
Relocations: 0x0000
Size of header: 0x0004
Min extra paragraphs: 0x000F
Max extra paragraphs: 0xFFFF
Initial SS value: 0x0000
Initial SP value: 0x00B8
Checksum: 0x0000
Initial IP value: 0x0000
Initial CS value: 0x0000
Overlay number: 0x001A
OEM identifier: 0x0000
OEM information: 0x0000
Address of NE header: 0x00000100

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 6
Time date stamp: 19-Jun-1992 22:22:17
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_BYTES_REVERSED_HI
  • IMAGE_FILE_BYTES_REVERSED_LO
  • IMAGE_FILE_DLL
  • IMAGE_FILE_EXECUTABLE_IMAGE
  • IMAGE_FILE_LINE_NUMS_STRIPPED
  • IMAGE_FILE_LOCAL_SYMS_STRIPPED

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
CODE
0x00001000
0x0005C814
0x0005CA00
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.54396
DATA
0x0005E000
0x000012AC
0x00001400
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
4.07538
BSS
0x00060000
0x00000C9D
0x00000000
IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
0
.idata
0x00061000
0x000020B4
0x00002200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
4.91395
.reloc
0x00064000
0x00006BAC
0x00006C00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_SHARED
6.68239
.rsrc
0x0006B000
0x00028400
0x00028400
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_SHARED
7.17707

Resources

Title
Entropy
Size
Codepage
Language
Type
1
3.85232
744
UNKNOWN
English - United States
RT_ICON
2
2.80231
308
UNKNOWN
UNKNOWN
RT_CURSOR
3
3.00046
308
UNKNOWN
UNKNOWN
RT_CURSOR
4
2.56318
308
UNKNOWN
UNKNOWN
RT_CURSOR
5
2.6949
308
UNKNOWN
UNKNOWN
RT_CURSOR
6
2.62527
308
UNKNOWN
UNKNOWN
RT_CURSOR
7
2.91604
308
UNKNOWN
UNKNOWN
RT_CURSOR
4081
3.33647
896
UNKNOWN
UNKNOWN
RT_STRING
4082
3.2068
492
UNKNOWN
UNKNOWN
RT_STRING
4083
3.25256
328
UNKNOWN
UNKNOWN
RT_STRING

Imports

advapi32.dll
comctl32.dll
gdi32.dll
kernel32.dll
ole32.dll
oleaut32.dll
user32.dll
version.dll
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
49
Monitored processes
7
Malicious processes
0
Suspicious processes
0

Behavior graph

Click at the process to see the details
start regsvr32.exe explorer.exe winword.exe no specs PhotoViewer.dll no specs explorer.exe no specs Shell Security Editor no specs notepad++.exe

Process information

PID
CMD
Path
Indicators
Parent process
1032C:\Windows\system32\DllHost.exe /Processid:{4D111E08-CBF7-4F12-A926-2C7920AF52FC}C:\Windows\system32\DllHost.exe—svchost.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
COM Surrogate
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\dllhost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\ole32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
1448"C:\Windows\explorer.exe" C:\Windows\explorer.exe—Explorer.EXE
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Explorer
Exit code:
1
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\explorer.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\rpcrt4.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\lpk.dll
2172"C:\Program Files\Notepad++\notepad++.exe" "C:\Windows\System32\Tasks\{E50A60F2-5EAA-45F0-AB88-0EC3813DD4AB}"C:\Program Files\Notepad++\notepad++.exe
Explorer.EXE
User:
admin
Company:
Don HO don.h@free.fr
Integrity Level:
MEDIUM
Description:
Notepad++ : a free (GNU) source code editor
Exit code:
0
Version:
7.91
Modules
Images
c:\windows\system32\ntdll.dll
c:\program files\notepad++\notepad++.exe
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7601.24483_none_2b200f664577e14b\comctl32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
2372C:\Windows\system32\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}C:\Windows\system32\DllHost.exe—svchost.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
COM Surrogate
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\dllhost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\ole32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
2772"C:\Program Files\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\admin\Desktop\churchwedding.rtf"C:\Program Files\Microsoft Office\Office14\WINWORD.EXE—Explorer.EXE
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft Word
Exit code:
0
Version:
14.0.6024.1000
Modules
Images
c:\program files\microsoft office\office14\winword.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\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_5.82.7601.18837_none_ec86b8d6858ec0bc\comctl32.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\gdi32.dll
3300C:\Windows\explorer.exeC:\Windows\explorer.exe
regsvr32.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Explorer
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\explorer.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\gdi32.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\user32.dll
3928"C:\Windows\System32\regsvr32.exe" C:\Users\admin\AppData\Local\Temp\dll1.dll.exeC:\Windows\System32\regsvr32.exe
Explorer.EXE
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft(C) Register Server
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\ntdll.dll
c:\windows\system32\regsvr32.exe
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
Total events
3 190
Read events
2 852
Write events
193
Delete events
145

Modification events

(PID) Process:(3300) explorer.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Ytfovlymmxqrt
Operation:writeName:9abda0b5
Value:
78FD41573BD99A1F72AB7870315B0E3453028C2CB868FED0AF9ED99462BC4217A1D271A8EA0356DF43535841214A5F0FFC6490664BB2D686
(PID) Process:(3300) explorer.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Ytfovlymmxqrt
Operation:writeName:af2270fb
Value:
1671B1CB492C5556C055EBE1070186F4539120B65789D71DB758F7249231D7EFE81C8ECAE56FBF12EB97D74FCE28A7C64420349CAD704EF46C08C28785325DA04EC55E6E8CDFA42531F0946B3321C8CB01D1E8F360D47B846A3463E7919A5EE78CEB4A7EF37FE781B04F1E724F76D4D471D962C1AF767DCD901BB854F670DB2AAFDA7EC62D66B8100666C6C42D912507FAFC5C6C86059C6523A7917E99DBC84F0152E8C16D170DA625DEE8DB4EFDD0BAFE8AC174238FCFCE5B284F9E110924B2CA4C60EE9A086EC4EA53370598DCA4606D
(PID) Process:(3300) explorer.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Ytfovlymmxqrt
Operation:writeName:ad635087
Value:
3F5FCA242F6BC310CEAAC572F217631E80818206CC63DD11A011436B60540631896528F881B58F8D7524A62F733EFFF1B65DEC863701EF377DB32346C7CAEBF22254622CA4CA2148A5E14D101F2C82D3E373B8F7A28CCE6187EAD42B23EA18A1DBE81CA2
(PID) Process:(3300) explorer.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Ytfovlymmxqrt
Operation:writeName:15df37e2
Value:
B713E4E0E8A1DB4C504871DFD6CD30AAEE4A2773BD02E7476A0A12CD3C8FC1D0D460B2BEF1C202D2A957D3AC2FD06D
(PID) Process:(3300) explorer.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Ytfovlymmxqrt
Operation:writeName:68d77868
Value:
FDAA9851894CBEB40AE666C238A829AC7D067B43784036B67ED14F73523A690DA110E0822121380F4474A045F950DFA5F4E571D81A3BCB4FC46D8D17CE5B0104C618671B46604225C4157F1D8E2C771823C93812AC68E744F8CD1B185F4C90181B
(PID) Process:(3300) explorer.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Ytfovlymmxqrt
Operation:writeName:d06b1f0d
Value:
AD659A1C351545021CF96C5D5B9329BE52522392BC1E5EA22C4E1317AC8AAFA82D2B77C6901735FBCC06F5399FAF61D3F005B0319A198178E5B939362F98C9D3FD8BFE4DE91FFF0E3F3018A7FAC315D2389211532683CF1C7B58608894E81C4B
(PID) Process:(3300) explorer.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Ytfovlymmxqrt
Operation:writeName:179e179e
Value:
18D68B559E5481419B811576418B7B92AAA117E47E6BE147A40EF6C8A0FA223B37FB4E249371D2480F29E54823A6A221329EF6424F46D87A19FE0794B298D319B418155A4366B3FE
(PID) Process:(3300) explorer.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Ytfovlymmxqrt
Operation:writeName:e5f4cf43
Value:
2BF73CCC9ED93F03D708F5D28211873DDE7DD93558AF6796436756F202AE4D70E074748CB258856424
(PID) Process:(3300) explorer.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Ytfovlymmxqrt
Operation:writeName:9abda0b5
Value:
78FD56573BD9AF68E2E8B224399AEC08954AA6972D0881DB5D1EEB0CC8377942D4EC0D3FEECDEC230CD8B164A163762742B72E187D4E6D08D27D035F5E8C4C61A83C0095B69099EBCE0C386560
(PID) Process:(2772) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word\Resiliency\StartupItems
Operation:writeName:9$?
Value:
39243F00D40A0000010000000000000000000000
Executable files
1
Suspicious files
1
Text files
3
Unknown types
5

Dropped files

PID
Process
Filename
Type
2772WINWORD.EXEC:\Users\admin\AppData\Local\Temp\CVRACB9.tmp.cvr —
MD5:—
SHA256:—
2772WINWORD.EXEC:\Users\admin\AppData\Roaming\Microsoft\Office\Recent\churchwedding.rtf.LNKlnk
MD5:—
SHA256:—
2772WINWORD.EXEC:\Users\admin\AppData\Roaming\Microsoft\Templates\~$Normal.dotmpgc
MD5:—
SHA256:—
2772WINWORD.EXEC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.Word\~WRS{592C3D10-ECA2-4835-B21D-947B1C427538}.tmpdbf
MD5:—
SHA256:—
3300explorer.exeC:\Users\admin\AppData\Local\Temp\dll1.dll.exeexecutable
MD5:EAC8B09862160F6A0F35C4EF072FC330
SHA256:EEEC187ABF1F05FE192198B6ACEE9ABDC3EF4CA4DCF3A09148566D46F33E085B
2772WINWORD.EXEC:\Users\admin\AppData\Roaming\Microsoft\Office\Recent\index.dattext
MD5:—
SHA256:—
2772WINWORD.EXEC:\Users\admin\Desktop\~$urchwedding.rtfpgc
MD5:—
SHA256:—
2772WINWORD.EXEC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.Word\~WRF{2955D710-1418-4BD0-8496-9EF1A931812C}.tmpbinary
MD5:—
SHA256:—
2772WINWORD.EXEC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.Word\~WRS{BB5C9E09-E7C8-461E-8F48-1836F54721F5}.tmpsmt
MD5:5D4D94EE7E06BBB0AF9584119797B23A
SHA256:4826C0D860AF884D3343CA6460B0006A7A2CE7DBCCC4D743208585D997CC5FD1
2172notepad++.exeC:\Users\admin\AppData\Roaming\Notepad++\session.xmltext
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
Process
Message
regsvr32.exe
Hello qqq
regsvr32.exe
Hello qqq
regsvr32.exe
Hello qqq
regsvr32.exe
Hello qqq
regsvr32.exe
Hello qqq
notepad++.exe
VerifyLibrary: C:\Program Files\Notepad++\SciLexer.dll
notepad++.exe
VerifyLibrary: certificate revocation checking is disabled
notepad++.exe
ED255D9151912E40DF048A56288E969A8D0DAFA3
notepad++.exe
VerifyLibrary: C:\Program Files\Notepad++\updater\gup.exe
notepad++.exe
VerifyLibrary: certificate revocation checking is disabled
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Reports
dll1.dll