URL:

https://ftp.vector.co.jp/46/52/1879/chorokuf128a.exe

Full analysis: https://app.any.run/tasks/630bc6ea-3eb6-4f41-8691-39c8f4c0d327
Verdict: Malicious activity
Analysis date: March 29, 2021, 06:12:58
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MD5:

5AFF8B1439D3B7CBF1FE83ADE7CC70A6

SHA1:

2631F1A27A5262442C10F3BCF21232D7104618CD

SHA256:

ED58B7B7D084C3466DB8EDD12063471E7AAF8D09B3131DF403B99217F0457D73

SSDEEP:

3:N8pLMGsGQtK6E1YX6zL4A:2pLMhGejX4LN

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 was dropped or rewritten from another process

      • chorokuf128a.exe (PID: 2096)
      • chorokuf128a.exe (PID: 3568)
      • jword_plugin.exe (PID: 2340)
      • jword_plugin.exe (PID: 1944)

    • Loads dropped or rewritten executable

      • NOTEPAD.EXE (PID: 1780)
      • Rundll32.exe (PID: 2524)
      • explorer.exe (PID: 376)
      • CnsMinSetup_pino.exe (PID: 2268)
      • NOTEPAD.EXE (PID: 3004)
      • EXECUTER.exe (PID: 2724)
      • jword_plugin.exe (PID: 1944)
      • CHoRoKuF.exe (PID: 3772)
      • EXECUTER.exe (PID: 3728)

    • Changes the autorun value in the registry

      • CnsMinSetup_pino.exe (PID: 2268)

  • SUSPICIOUS

    • Starts Internet Explorer

      • explorer.exe (PID: 376)

    • Executable content was dropped or overwritten

      • iexplore.exe (PID: 820)
      • chorokuf128a.exe (PID: 2096)
      • CnsMinSetup_pino.exe (PID: 2268)

    • Drops a file with too old compile date

      • iexplore.exe (PID: 820)
      • chorokuf128a.exe (PID: 2096)
      • CnsMinSetup_pino.exe (PID: 2268)

    • Creates files in the program directory

      • chorokuf128a.exe (PID: 2096)
      • CnsMinSetup_pino.exe (PID: 2268)
      • jword_plugin.exe (PID: 2340)

    • Creates a software uninstall entry

      • chorokuf128a.exe (PID: 2096)
      • CnsMinSetup_pino.exe (PID: 2268)

    • Creates a directory in Program Files

      • jword_plugin.exe (PID: 2340)
      • chorokuf128a.exe (PID: 2096)

    • Uses RUNDLL32.EXE to load library

      • CnsMinSetup_pino.exe (PID: 2268)

    • Creates/Modifies COM task schedule object

      • CnsMinSetup_pino.exe (PID: 2268)

    • Creates files in the Windows directory

      • jword_plugin.exe (PID: 1944)
      • CnsMinSetup_pino.exe (PID: 2268)
      • EXECUTER.exe (PID: 2724)
      • NOTEPAD.EXE (PID: 3004)
      • EXECUTER.exe (PID: 3728)
      • CHoRoKuF.exe (PID: 3772)

    • Removes files from Windows directory

      • jword_plugin.exe (PID: 1944)
      • EXECUTER.exe (PID: 2724)
      • NOTEPAD.EXE (PID: 3004)
      • EXECUTER.exe (PID: 3728)
      • CHoRoKuF.exe (PID: 3772)

  • INFO

    • Reads settings of System Certificates

      • iexplore.exe (PID: 2184)

    • Application launched itself

      • iexplore.exe (PID: 820)

    • Changes internet zones settings

      • iexplore.exe (PID: 820)

    • Modifies the phishing filter of IE

      • iexplore.exe (PID: 820)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
53
Monitored processes
15
Malicious processes
8
Suspicious processes
3

Behavior graph

Click at the process to see the details
drop and start drop and start start iexplore.exe iexplore.exe chorokuf128a.exe no specs chorokuf128a.exe executer.exe no specs executer.exe no specs jword_plugin.exe no specs jword_plugin.exe no specs cnsminsetup_pino.exe notepad.exe no specs rundll32.exe no specs explorer.exe no specs notepad.exe no specs regedit.exe no specs chorokuf.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
376C:\Windows\Explorer.EXEC:\Windows\explorer.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\system32\winanr.dll
c:\windows\system32\api-ms-win-core-synch-l1-2-0.dll
c:\windows\system32\mswsock.dll
c:\windows\system32\wshtcpip.dll
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
820"C:\Program Files\Internet Explorer\iexplore.exe" "https://ftp.vector.co.jp/46/52/1879/chorokuf128a.exe"C:\Program Files\Internet Explorer\iexplore.exe
explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Internet Explorer
Exit code:
0
Version:
11.00.9600.16428 (winblue_gdr.131013-1700)
Modules
Images
c:\program files\internet explorer\iexplore.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\api-ms-win-downlevel-advapi32-l1-1-0.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\iertutil.dll
1780"C:\Windows\system32\NOTEPAD.EXE" C:\Program Files\CHoRoKuf\README.TXTC:\Windows\system32\NOTEPAD.EXE—EXECUTER.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Notepad
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\notepad.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
1944"C:\Program Files\CHoRoKuf\jword_plugin.exe" C:\Program Files\CHoRoKuf\jword_plugin.exe—EXECUTER.exe
User:
admin
Company:
web technology Corp. http://www.webtech.co.jp/exepress/
Integrity Level:
HIGH
Description:
Self Extractable Archive by EXEpress
Exit code:
0
Version:
3.41
Modules
Images
c:\program files\chorokuf\jword_plugin.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7601.17514_none_41e6975e2bd6f2b2\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
2096"C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\6Z2BCOUL\chorokuf128a.exe" C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\6Z2BCOUL\chorokuf128a.exe
iexplore.exe
User:
admin
Company:
web technology Corp. http://www.webtech.co.jp/exepress/
Integrity Level:
HIGH
Description:
Self Extractable Archive by EXEpress
Exit code:
0
Version:
3.41
Modules
Images
c:\users\admin\appdata\local\microsoft\windows\temporary internet files\content.ie5\6z2bcoul\chorokuf128a.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7601.17514_none_41e6975e2bd6f2b2\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
2184"C:\Program Files\Internet Explorer\iexplore.exe" SCODEF:820 CREDAT:267521 /prefetch:2C:\Program Files\Internet Explorer\iexplore.exe
iexplore.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
LOW
Description:
Internet Explorer
Exit code:
0
Version:
11.00.9600.16428 (winblue_gdr.131013-1700)
Modules
Images
c:\program files\internet explorer\iexplore.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\api-ms-win-downlevel-advapi32-l1-1-0.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\iertutil.dll
2268"C:\Program Files\JWord_pino\CnsMinSetup_pino.exe" CnsMin.dllC:\Program Files\JWord_pino\CnsMinSetup_pino.exe
jword_plugin.exe
User:
admin
Integrity Level:
HIGH
Exit code:
0
Modules
Images
c:\program files\jword_pino\cnsminsetup_pino.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\ole32.dll
c:\windows\system32\gdi32.dll
2340"C:\Program Files\CHoRoKuf\jword_plugin.exe" C:\Program Files\CHoRoKuf\jword_plugin.exe—EXECUTER.exe
User:
admin
Company:
web technology Corp. http://www.webtech.co.jp/exepress/
Integrity Level:
HIGH
Description:
Self Extractable Archive by EXEpress
Exit code:
0
Version:
3.41
Modules
Images
c:\program files\chorokuf\jword_plugin.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7601.17514_none_41e6975e2bd6f2b2\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
2524Rundll32.exe C:\Windows\DOWNLO~1\CnsMin.dll,Rundll32C:\Windows\system32\Rundll32.exe—CnsMinSetup_pino.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Windows host process (Rundll32)
Exit code:
0
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
2724"C:\Program Files\CHoRoKuf\EXECUTER.exe" installer.txtC:\Program Files\CHoRoKuf\EXECUTER.exe—chorokuf128a.exe
User:
admin
Integrity Level:
HIGH
Exit code:
0
Modules
Images
c:\program files\chorokuf\executer.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\shell32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\shlwapi.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
Total events
4 508
Read events
3 801
Write events
671
Delete events
36

Modification events

(PID) Process:(820) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\UrlBlockManager
Operation:writeName:NextCheckForUpdateLowDateTime
Value:
2890356080
(PID) Process:(820) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\UrlBlockManager
Operation:writeName:NextCheckForUpdateHighDateTime
Value:
30876770
(PID) Process:(820) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content
Operation:writeName:CachePrefix
Value:
(PID) Process:(820) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies
Operation:writeName:CachePrefix
Value:
Cookie:
(PID) Process:(820) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History
Operation:writeName:CachePrefix
Value:
Visited:
(PID) Process:(820) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main
Operation:writeName:CompatibilityFlags
Value:
0
(PID) Process:(820) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings
Operation:writeName:ProxyEnable
Value:
0
(PID) Process:(820) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections
Operation:writeName:SavedLegacySettings
Value:
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
(PID) Process:(820) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
0
(PID) Process:(820) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
1
Executable files
4
Suspicious files
9
Text files
19
Unknown types
24

Dropped files

PID
Process
Filename
Type
2184iexplore.exeC:\Users\admin\AppData\Local\Temp\Low\Cab9182.tmp —
MD5:—
SHA256:—
2184iexplore.exeC:\Users\admin\AppData\Local\Temp\Low\Tar9183.tmp —
MD5:—
SHA256:—
2184iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\MFAQUS6V\chorokuf128a[1].exe —
MD5:—
SHA256:—
2184iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\6Z2BCOUL\chorokuf128a.exe.0w89vi0.partial —
MD5:—
SHA256:—
820iexplore.exeC:\Users\admin\AppData\Local\Temp\~DFE8108DFD1A09A764.TMP —
MD5:—
SHA256:—
820iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\6Z2BCOUL\chorokuf128a.exe.0w89vi0.partial:Zone.Identifier —
MD5:—
SHA256:—
2096chorokuf128a.exeC:\ProgramData\Microsoft\Windows\Start Menu\Programs\ô’´˜^ - ƒpƒ\ƒRƒ“’·ŽžŠÔ˜^‰¹‹@ƒtƒŠ[”Å\ô’´˜^ - ƒwƒ‹ƒvƒtƒ@ƒCƒ‹.lnklnk
MD5:—
SHA256:—
2096chorokuf128a.exeC:\Program Files\CHoRoKuf\epuninst.exeexecutable
MD5:—
SHA256:—
2096chorokuf128a.exeC:\ProgramData\Microsoft\Windows\Start Menu\Programs\ô’´˜^ - ƒpƒ\ƒRƒ“’·ŽžŠÔ˜^‰¹‹@ƒtƒŠ[”Å\ô’´ƒXƒP - ’´˜^! ˜^‰¹ƒXƒPƒWƒ…[ƒ‰[.lnklnk
MD5:—
SHA256:—
2096chorokuf128a.exeC:\Users\Administrator\NTUSER.DAThiv
MD5:—
SHA256:—
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
4
TCP/UDP connections
6
DNS requests
4
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
2184
iexplore.exe
GET
200
104.18.21.226:80
http://ocsp2.globalsign.com/rootr3/ME4wTDBKMEgwRjAJBgUrDgMCGgUABBT1nGh%2FJBjWKnkPdZIzB1bqhelHBwQUj%2FBLf6guRSSuTVD6Y5qL3uLdG7wCDQHuXyId%2FGI71DM6hVc%3D
US
der
1.48 Kb
whitelisted
2184
iexplore.exe
GET
200
104.18.20.226:80
http://ocsp.globalsign.com/gsrsaovsslca2018/ME0wSzBJMEcwRTAJBgUrDgMCGgUABBRrcGT%2BanRD3C1tW3nsrKeuXC7DPwQU%2BO9%2F8s14Z6jeb48kjYjxhwMCs%2BsCDFW6U5fLrDNi8a4PzA%3D%3D
US
der
1.49 Kb
whitelisted
2184
iexplore.exe
GET
200
104.18.21.226:80
http://ocsp2.globalsign.com/rootr3/ME4wTDBKMEgwRjAJBgUrDgMCGgUABBT1nGh%2FJBjWKnkPdZIzB1bqhelHBwQUj%2FBLf6guRSSuTVD6Y5qL3uLdG7wCDQHuXyId%2FGI71DM6hVc%3D
US
der
1.48 Kb
whitelisted
2184
iexplore.exe
GET
200
104.18.20.226:80
http://ocsp.globalsign.com/gsrsaovsslca2018/ME0wSzBJMEcwRTAJBgUrDgMCGgUABBRrcGT%2BanRD3C1tW3nsrKeuXC7DPwQU%2BO9%2F8s14Z6jeb48kjYjxhwMCs%2BsCDFW6U5fLrDNi8a4PzA%3D%3D
US
der
1.49 Kb
whitelisted
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
2184
iexplore.exe
180.214.37.141:443
ftp.vector.co.jp
Bit-isle Co.,Ltd.
JP
suspicious
2184
iexplore.exe
104.18.20.226:80
ocsp2.globalsign.com
Cloudflare Inc
US
shared
2184
iexplore.exe
104.18.21.226:80
ocsp2.globalsign.com
Cloudflare Inc
US
shared

DNS requests

Domain
IP
Reputation
ftp.vector.co.jp
  • 180.214.37.141
  • 180.214.37.162
  • 180.214.37.164
malicious
ocsp2.globalsign.com
  • 104.18.21.226
  • 104.18.20.226
whitelisted
ocsp.globalsign.com
  • 104.18.20.226
  • 104.18.21.226
whitelisted

Threats

No threats detected
No debug info
Interactive malware hunting service ANY.RUN
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ANY.RUN
Reports
https://ftp.vector.co.jp/46/52/1879/chorokuf128a.exe