URL:

http://ftp.yz.yamagata-u.ac.jp/pub/CTAN/systems/texlive/tlnet/install-tl-windows.exe

Full analysis: https://app.any.run/tasks/06255610-02bf-4dbc-b516-862dd342a9ff
Verdict: Malicious activity
Analysis date: September 19, 2019, 12:00:43
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
opendir
Indicators:
MD5:

F8B1C6A6E9CBE76A156219C7E0F83EB0

SHA1:

671216CE0D944DC514BFEB057122C647219F4424

SHA256:

6C32F1B74911E6CA257C06260554EB7447E42D9FFFF93133871B4E9542AC8B79

SSDEEP:

3:N1KYnECEEIm/qGkrKW/o00KDgGRGSkrA:CYnnEET/qGkK0zkGRqrA

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

      • install-tl-windows.exe (PID: 1856)
      • perl.exe (PID: 2528)
      • tar.exe (PID: 1512)
      • wget.exe (PID: 3652)
      • xz.exe (PID: 3192)
      • ns5D75.tmp (PID: 2112)
      • tclkit.exe (PID: 3712)
      • wget.exe (PID: 2544)
      • xz.exe (PID: 2068)
      • wget.exe (PID: 3956)

    • Loads dropped or rewritten executable

      • install-tl-windows.exe (PID: 1856)
      • perl.exe (PID: 2528)

  • SUSPICIOUS

    • Starts application with an unusual extension

      • install-tl-windows.exe (PID: 1856)

    • Executable content was dropped or overwritten

      • chrome.exe (PID: 2332)
      • chrome.exe (PID: 2792)
      • install-tl-windows.exe (PID: 1856)

    • Starts CMD.EXE for commands execution

      • ns5D75.tmp (PID: 2112)
      • cmd.exe (PID: 2900)
      • perl.exe (PID: 2528)

  • INFO

    • Reads the hosts file

      • chrome.exe (PID: 2332)
      • chrome.exe (PID: 2792)

    • Creates files in the user directory

      • chrome.exe (PID: 2792)

    • Reads Internet Cache Settings

      • chrome.exe (PID: 2792)

    • Dropped object may contain Bitcoin addresses

      • install-tl-windows.exe (PID: 1856)

    • Application launched itself

      • chrome.exe (PID: 2792)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
83
Monitored processes
35
Malicious processes
6
Suspicious processes
0

Behavior graph

Click at the process to see the details
drop and start start drop and start chrome.exe chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe no specs install-tl-windows.exe chrome.exe no specs ns5d75.tmp no specs cmd.exe no specs cmd.exe no specs cmd.exe no specs tclkit.exe no specs perl.exe no specs cmd.exe no specs cmd.exe no specs tar.exe no specs cmd.exe no specs cmd.exe no specs cmd.exe no specs wget.exe no specs cmd.exe no specs cmd.exe no specs cmd.exe no specs cmd.exe no specs xz.exe no specs cmd.exe no specs wget.exe chrome.exe no specs wget.exe cmd.exe no specs xz.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
324"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --field-trial-handle=1020,5678156902663964700,1986047999899398892,131072 --enable-features=PasswordImport --lang=en-US --service-sandbox-type=utility --service-request-channel-token=18364631940238918941 --mojo-platform-channel-handle=488 --ignored=" --type=renderer " /prefetch:8C:\Program Files\Google\Chrome\Application\chrome.exe—chrome.exe
User:
admin
Company:
Google LLC
Integrity Level:
LOW
Description:
Google Chrome
Exit code:
0
Version:
75.0.3770.100
Modules
Images
c:\program files\google\chrome\application\chrome.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\program files\google\chrome\application\75.0.3770.100\chrome_elf.dll
c:\windows\system32\version.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\shell32.dll
c:\windows\system32\shlwapi.dll
c:\windows\system32\gdi32.dll
1512C:\Users\admin\AppData\Local\Temp\nsl467.tmp\install-tl-20190918\tlpkg\installer\tar.exe --version C:\Users\admin\AppData\Local\Temp\nsl467.tmp\install-tl-20190918\tlpkg\installer\tar.exe—cmd.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\nsl467.tmp\install-tl-20190918\tlpkg\installer\tar.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\advapi32.dll
1856"C:\Users\admin\Downloads\install-tl-windows.exe" C:\Users\admin\Downloads\install-tl-windows.exe
chrome.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\downloads\install-tl-windows.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\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7601.17514_none_41e6975e2bd6f2b2\comctl32.dll
c:\windows\system32\gdi32.dll
2068C:\Users\admin\AppData\Local\Temp\nsl467.tmp\install-tl-20190918\tlpkg\installer\xz\xz.exe -dcf C:\Users\admin\AppData\Local\Temp\nsl467.tmp\install-tl-20190918\tlpkg\installer\xz\xz.exe—cmd.exe
User:
admin
Company:
The Tukaani Project <https://tukaani.org/>
Integrity Level:
MEDIUM
Description:
xz data compression tool for .xz and .lzma files
Exit code:
0
Version:
5.2.4
Modules
Images
c:\users\admin\appdata\local\temp\nsl467.tmp\install-tl-20190918\tlpkg\installer\xz\xz.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
2112"C:\Users\admin\AppData\Local\Temp\nsl467.tmp\ns5D75.tmp" "C:\Users\admin\AppData\Local\Temp\nsl467.tmp\install-tl-20190918\inst_mod.bat" C:\Users\admin\AppData\Local\Temp\nsl467.tmp\ns5D75.tmp—install-tl-windows.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\nsl467.tmp\ns5d75.tmp
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
2200cmd.exe /x/d/c verC:\Windows\system32\cmd.exe—perl.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Command Processor
Exit code:
0
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
Modules
Images
c:\windows\system32\cmd.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\winbrand.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
2332"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --field-trial-handle=1020,5678156902663964700,1986047999899398892,131072 --enable-features=PasswordImport --lang=en-US --service-sandbox-type=network --service-request-channel-token=14266949305079669338 --mojo-platform-channel-handle=1552 /prefetch:8C:\Program Files\Google\Chrome\Application\chrome.exe
chrome.exe
User:
admin
Company:
Google LLC
Integrity Level:
MEDIUM
Description:
Google Chrome
Exit code:
0
Version:
75.0.3770.100
Modules
Images
c:\program files\google\chrome\application\chrome.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\program files\google\chrome\application\75.0.3770.100\chrome_elf.dll
c:\windows\system32\version.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\shell32.dll
c:\windows\system32\shlwapi.dll
c:\windows\system32\user32.dll
2512cmd.exe /x/d/c "C:\Users\admin\AppData\Local\Temp\nsl467.tmp\install-tl-20190918\tlpkg\installer\xz\xz.exe --version >nul 2>&1"C:\Windows\system32\cmd.exe—perl.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Command Processor
Exit code:
0
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
Modules
Images
c:\windows\system32\cmd.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\winbrand.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
2524"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --field-trial-handle=1020,5678156902663964700,1986047999899398892,131072 --enable-features=PasswordImport --lang=en-US --no-sandbox --service-request-channel-token=12336067688843740366 --mojo-platform-channel-handle=2508 /prefetch:8C:\Program Files\Google\Chrome\Application\chrome.exe—chrome.exe
User:
admin
Company:
Google LLC
Integrity Level:
MEDIUM
Description:
Google Chrome
Exit code:
0
Version:
75.0.3770.100
Modules
Images
c:\program files\google\chrome\application\chrome.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\program files\google\chrome\application\75.0.3770.100\chrome_elf.dll
c:\windows\system32\version.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\shell32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
2528C:\Users\admin\AppData\Local\Temp\nsl467.tmp\install-tl-20190918\tlpkg\tlperl\bin\perl.exe C:/Users/admin/AppData/Local/Temp/nsl467.tmp/install-tl-20190918/install-tl -from_ext_guiC:\Users\admin\AppData\Local\Temp\nsl467.tmp\install-tl-20190918\tlpkg\tlperl\bin\perl.exe—tclkit.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\nsl467.tmp\install-tl-20190918\tlpkg\tlperl\bin\perl.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\users\admin\appdata\local\temp\nsl467.tmp\install-tl-20190918\tlpkg\tlperl\bin\perl528.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7601.17514_none_41e6975e2bd6f2b2\comctl32.dll
Total events
1 347
Read events
1 296
Write events
48
Delete events
3

Modification events

(PID) Process:(2820) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Chrome\BrowserExitCodes
Operation:writeName:2792-13213368054800125
Value:
259
(PID) Process:(2792) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Chrome\BLBeacon
Operation:writeName:failed_count
Value:
0
(PID) Process:(2792) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Chrome\BLBeacon
Operation:writeName:state
Value:
2
(PID) Process:(2792) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Chrome\ThirdParty
Operation:writeName:StatusCodes
Value:
(PID) Process:(2792) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Chrome\ThirdParty
Operation:writeName:StatusCodes
Value:
01000000
(PID) Process:(2792) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Chrome\BLBeacon
Operation:writeName:state
Value:
1
(PID) Process:(2792) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Update\ClientState\{8A69D345-D564-463c-AFF1-A69D9E530F96}
Operation:writeName:dr
Value:
1
(PID) Process:(2792) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Chrome
Operation:writeName:UsageStatsInSample
Value:
0
(PID) Process:(2792) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Chrome\BrowserExitCodes
Operation:delete valueName:1512-13197841398593750
Value:
0
(PID) Process:(2792) chrome.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Google\Update\ClientStateMedium\{8A69D345-D564-463C-AFF1-A69D9E530F96}
Operation:writeName:usagestats
Value:
0
Executable files
85
Suspicious files
28
Text files
1 736
Unknown types
19

Dropped files

PID
Process
Filename
Type
2792chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\fd2962d3-5e19-4a0d-b15e-d4afb559dafe.tmp —
MD5:—
SHA256:—
2792chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\data_reduction_proxy_leveldb\000020.dbtmp —
MD5:—
SHA256:—
2792chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\data_reduction_proxy_leveldb\LOG.oldtext
MD5:—
SHA256:—
2792chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\Sync Data\LevelDB\LOG.oldtext
MD5:—
SHA256:—
2792chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\shared_proto_db\LOG.old —
MD5:—
SHA256:—
2792chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\Site Characteristics Database\LOG.old~RF168bf9.TMPtext
MD5:—
SHA256:—
2792chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\Site Characteristics Database\LOG.oldtext
MD5:—
SHA256:—
2792chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\ShaderCache\GPUCache\data_1 —
MD5:—
SHA256:—
2792chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\Feature Engagement Tracker\EventDB\LOG.oldtext
MD5:—
SHA256:—
2792chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\Feature Engagement Tracker\AvailabilityDB\LOG.oldtext
MD5:—
SHA256:—
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
4
TCP/UDP connections
19
DNS requests
12
Threats
1

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
2544
wget.exe
GET
302
5.35.249.60:80
http://mirror.ctan.org/
DE
html
295 b
whitelisted
2544
wget.exe
GET
—
192.17.3.223:80
http://ctan.math.illinois.edu/
US
—
—
unknown
2544
wget.exe
GET
200
192.17.3.223:80
http://ctan.math.illinois.edu/
US
html
8.97 Kb
unknown
3956
wget.exe
GET
200
192.17.3.223:80
http://ctan.math.illinois.edu/systems/texlive/tlnet/tlpkg/texlive.tlpdb.xz
US
xz
2.02 Mb
unknown
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
2332
chrome.exe
172.217.18.99:443
clientservices.googleapis.com
Google Inc.
US
whitelisted
2332
chrome.exe
172.217.23.141:443
accounts.google.com
Google Inc.
US
whitelisted
2332
chrome.exe
133.24.248.17:80
ftp.yz.yamagata-u.ac.jp
Yamagata University
JP
suspicious
2332
chrome.exe
216.58.207.36:443
www.google.com
Google Inc.
US
whitelisted
2332
chrome.exe
172.217.23.131:443
ssl.gstatic.com
Google Inc.
US
whitelisted
2332
chrome.exe
172.217.16.206:443
sb-ssl.google.com
Google Inc.
US
whitelisted
2332
chrome.exe
133.24.248.19:80
ftp.yz.yamagata-u.ac.jp
Yamagata University
JP
unknown
2544
wget.exe
5.35.249.60:80
mirror.ctan.org
Host Europe GmbH
DE
unknown
2544
wget.exe
192.17.3.223:80
ctan.math.illinois.edu
University of Illinois
US
unknown
2332
chrome.exe
172.217.16.195:443
www.gstatic.com
Google Inc.
US
whitelisted

DNS requests

Domain
IP
Reputation
clientservices.googleapis.com
  • 172.217.18.99
whitelisted
ftp.yz.yamagata-u.ac.jp
  • 133.24.248.17
  • 133.24.248.19
  • 133.24.248.16
  • 133.24.248.18
suspicious
accounts.google.com
  • 172.217.23.141
shared
www.google.com
  • 216.58.207.36
malicious
ssl.gstatic.com
  • 172.217.23.131
whitelisted
sb-ssl.google.com
  • 172.217.16.206
whitelisted
mirror.ctan.org
  • 5.35.249.60
unknown
ctan.math.illinois.edu
  • 192.17.3.223
unknown
www.gstatic.com
  • 172.217.16.195
whitelisted
clients1.google.com
  • 216.58.205.238
whitelisted

Threats

PID
Process
Class
Message
2332
chrome.exe
Potential Corporate Privacy Violation
ET POLICY PE EXE or DLL Windows file download HTTP
No debug info
Interactive malware hunting service ANY.RUN
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Reports
http://ftp.yz.yamagata-u.ac.jp/pub/CTAN/systems/texlive/tlnet/install-tl-windows.exe