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URL:

http://fortrancalculus.info/download/curvfit-install.exe

Full analysis: https://app.any.run/tasks/e45fac89-2096-4783-a9a4-6803afd9e8d1
Verdict: Malicious activity
Threats:

A loader is malicious software that infiltrates devices to deliver malicious payloads. This malware is capable of infecting victims’ computers, analyzing their system information, and installing other types of threats, such as trojans or stealers. Criminals usually deliver loaders through phishing emails and links by relying on social engineering to trick users into downloading and running their executables. Loaders employ advanced evasion and persistence tactics to avoid detection.

Malware Trends Tracker     >>>
Analysis date: July 18, 2019, 12:40:18
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
loader
Indicators:
MD5:

F6918C3DB809F99CF1E78B7D646CE094

SHA1:

A792F5DE0E13F77F9D26744ED0302AC0A31498BE

SHA256:

D7A9791A22389DEF9217D16EEBD76675CEA5755266B5EC2387979B68388C7931

SSDEEP:

3:N1KY3UWGWKXm/firN:CY3UWTtY

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

      • curvfit-install.exe (PID: 3196)
      • curvfit-install.exe (PID: 3184)
      • CurvFit Class.exe (PID: 1704)
      • CurvFit.exe (PID: 2708)
      • ODE-XYplots.exe (PID: 1648)
      • DOSBox.exe (PID: 2544)

    • Downloads executable files from the Internet

      • chrome.exe (PID: 2948)

    • Loads dropped or rewritten executable

      • regsvr32.exe (PID: 2192)
      • regsvr32.exe (PID: 2364)
      • regsvr32.exe (PID: 3208)
      • regsvr32.exe (PID: 2064)
      • CurvFit.exe (PID: 2708)
      • ODE-XYplots.exe (PID: 1648)
      • DOSBox.exe (PID: 2544)

    • Registers / Runs the DLL via REGSVR32.EXE

      • curvfit-install.tmp (PID: 3820)

    • Changes settings of System certificates

      • certutil.exe (PID: 3512)

  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • chrome.exe (PID: 2948)
      • curvfit-install.exe (PID: 3184)
      • chrome.exe (PID: 3860)
      • curvfit-install.exe (PID: 3196)
      • curvfit-install.tmp (PID: 3820)
      • cmd.exe (PID: 3620)

    • Creates files in the Windows directory

      • curvfit-install.tmp (PID: 3820)
      • certutil.exe (PID: 3512)

    • Modifies the open verb of a shell class

      • curvfit-install.tmp (PID: 3820)

    • Removes files from Windows directory

      • certutil.exe (PID: 3512)

    • Starts Microsoft Office Application

      • curvfit-install.tmp (PID: 1336)

    • Starts CMD.EXE for commands execution

      • CurvFit.exe (PID: 2708)
      • cmd.exe (PID: 1236)
      • cmd.exe (PID: 3620)

    • Application launched itself

      • cmd.exe (PID: 1236)
      • cmd.exe (PID: 3620)

    • Uses ATTRIB.EXE to modify file attributes

      • cmd.exe (PID: 3620)

    • Uses REG.EXE to modify Windows registry

      • cmd.exe (PID: 2316)
      • cmd.exe (PID: 3620)
      • cmd.exe (PID: 1864)

    • Creates files in the user directory

      • notepad++.exe (PID: 2472)

  • INFO

    • Application launched itself

      • chrome.exe (PID: 3860)

    • Reads Internet Cache Settings

      • chrome.exe (PID: 3860)

    • Application was dropped or rewritten from another process

      • curvfit-install.tmp (PID: 1336)
      • curvfit-install.tmp (PID: 3820)

    • Loads dropped or rewritten executable

      • curvfit-install.tmp (PID: 3820)

    • Creates files in the program directory

      • curvfit-install.tmp (PID: 3820)

    • Reads Microsoft Office registry keys

      • WINWORD.EXE (PID: 2160)

    • Creates files in the user directory

      • WINWORD.EXE (PID: 2160)

    • Manual execution by user

      • CurvFit.exe (PID: 2708)

    • Creates a software uninstall entry

      • curvfit-install.tmp (PID: 3820)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
92
Monitored processes
48
Malicious processes
9
Suspicious processes
1

Behavior graph

Click at the process to see the details
drop and start start drop and 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 curvfit-install.exe curvfit-install.tmp no specs curvfit-install.exe curvfit-install.tmp chrome.exe no specs regsvr32.exe no specs regsvr32.exe no specs regsvr32.exe no specs regsvr32.exe no specs certutil.exe no specs winword.exe no specs notepad.exe no specs notepad.exe no specs curvfit class.exe no specs chrome.exe no specs chrome.exe no specs curvfit.exe no specs cmd.exe no specs cmd.exe no specs cmd.exe no specs timeout.exe no specs cmd.exe mode.com no specs cmd.exe no specs cmd.exe no specs attrib.exe no specs timeout.exe no specs dosbox.exe no specs attrib.exe no specs timeout.exe no specs cmd.exe no specs reg.exe no specs reg.exe no specs reg.exe no specs cmd.exe no specs reg.exe no specs ode-xyplots.exe no specs notepad++.exe gup.exe timeout.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
3860"C:\Program Files\Google\Chrome\Application\chrome.exe" "http://fortrancalculus.info/download/curvfit-install.exe"C:\Program Files\Google\Chrome\Application\chrome.exe
explorer.exe
User:
admin
Company:
Google LLC
Integrity Level:
MEDIUM
Description:
Google Chrome
Version:
75.0.3770.100
2232"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\admin\AppData\Local\Google\Chrome\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win32 --annotation=prod=Chrome --annotation=ver=75.0.3770.100 --initial-client-data=0x7c,0x80,0x84,0x78,0x88,0x6f9ba9d0,0x6f9ba9e0,0x6f9ba9ecC:\Program Files\Google\Chrome\Application\chrome.exe—chrome.exe
User:
admin
Company:
Google LLC
Integrity Level:
MEDIUM
Description:
Google Chrome
Version:
75.0.3770.100
3308"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=watcher --main-thread-id=3864 --on-initialized-event-handle=312 --parent-handle=316 /prefetch:6C:\Program Files\Google\Chrome\Application\chrome.exe—chrome.exe
User:
admin
Company:
Google LLC
Integrity Level:
MEDIUM
Description:
Google Chrome
Version:
75.0.3770.100
456"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --field-trial-handle=984,8956427466426825137,6367798834228197110,131072 --enable-features=PasswordImport --gpu-preferences=KAAAAAAAAADgAAAgAQAAAAAAAAAAAGAAAAAAAAAAAAAIAAAAAAAAACgAAAAEAAAAIAAAAAAAAAAoAAAAAAAAADAAAAAAAAAAOAAAAAAAAAAQAAAAAAAAAAAAAAAFAAAAEAAAAAAAAAAAAAAABgAAABAAAAAAAAAAAQAAAAUAAAAQAAAAAAAAAAEAAAAGAAAA --service-request-channel-token=7242088427700047681 --mojo-platform-channel-handle=996 --ignored=" --type=renderer " /prefetch:2C:\Program Files\Google\Chrome\Application\chrome.exe—chrome.exe
User:
admin
Company:
Google LLC
Integrity Level:
LOW
Description:
Google Chrome
Version:
75.0.3770.100
2948"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --field-trial-handle=984,8956427466426825137,6367798834228197110,131072 --enable-features=PasswordImport --lang=en-US --service-sandbox-type=network --service-request-channel-token=8844347824769023787 --mojo-platform-channel-handle=1620 /prefetch:8C:\Program Files\Google\Chrome\Application\chrome.exe
chrome.exe
User:
admin
Company:
Google LLC
Integrity Level:
MEDIUM
Description:
Google Chrome
Version:
75.0.3770.100
2824"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=984,8956427466426825137,6367798834228197110,131072 --enable-features=PasswordImport --lang=en-US --enable-offline-auto-reload --enable-offline-auto-reload-visible-only --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --service-request-channel-token=3504580023395291498 --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=2232 /prefetch:1C:\Program Files\Google\Chrome\Application\chrome.exe—chrome.exe
User:
admin
Company:
Google LLC
Integrity Level:
LOW
Description:
Google Chrome
Version:
75.0.3770.100
3728"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=984,8956427466426825137,6367798834228197110,131072 --enable-features=PasswordImport --lang=en-US --enable-offline-auto-reload --enable-offline-auto-reload-visible-only --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --service-request-channel-token=16797279887864167139 --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=2220 /prefetch:1C:\Program Files\Google\Chrome\Application\chrome.exe—chrome.exe
User:
admin
Company:
Google LLC
Integrity Level:
LOW
Description:
Google Chrome
Version:
75.0.3770.100
1688"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=984,8956427466426825137,6367798834228197110,131072 --enable-features=PasswordImport --lang=en-US --extension-process --enable-offline-auto-reload --enable-offline-auto-reload-visible-only --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --service-request-channel-token=3626623564183702473 --renderer-client-id=4 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=2320 /prefetch:1C:\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
3196"C:\Users\admin\Downloads\curvfit-install.exe" C:\Users\admin\Downloads\curvfit-install.exe
chrome.exe
User:
admin
Company:
Optimal Designs Enterprise
Integrity Level:
MEDIUM
Description:
CurvFit (tm): Lorentz, Sine, Poly., etc Series 2 Model Data
Exit code:
0
Version:
1336"C:\Users\admin\AppData\Local\Temp\is-2P0MT.tmp\curvfit-install.tmp" /SL5="$60138,7379946,52736,C:\Users\admin\Downloads\curvfit-install.exe" C:\Users\admin\AppData\Local\Temp\is-2P0MT.tmp\curvfit-install.tmp—curvfit-install.exe
User:
admin
Integrity Level:
MEDIUM
Description:
Setup/Uninstall
Exit code:
0
Version:
51.52.0.0
Total events
3 149
Read events
2 424
Write events
0
Delete events
0

Modification events

No data
Executable files
26
Suspicious files
30
Text files
207
Unknown types
11

Dropped files

PID
Process
Filename
Type
3860chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\421e0645-d249-4f79-9e41-af0164c14353.tmp —
MD5:—
SHA256:—
3860chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\data_reduction_proxy_leveldb\000020.dbtmp —
MD5:—
SHA256:—
3860chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\Feature Engagement Tracker\AvailabilityDB\LOG.old —
MD5:—
SHA256:—
3860chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\Feature Engagement Tracker\AvailabilityDB\LOG.old~RFdf4d0.TMP —
MD5:—
SHA256:—
3860chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\shared_proto_db\LOG.old —
MD5:—
SHA256:—
3860chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\Sync Data\LevelDB\LOG.oldtext
MD5:DC32343F45B01764B6267AD36548102A
SHA256:A250F5AD57D4BD58AAE92810D50278E3BE2DBF869F126A3A3519691BCDFC2075
3860chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\Site Characteristics Database\LOG.old~RFdf398.TMPtext
MD5:C4D6CBB269C626168A5D6D0D8CCE6C30
SHA256:B62CDBB758278A0C2E50593357390119441D8DE09428EB29027F3DFD1332E348
3860chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\BudgetDatabase\LOG.oldtext
MD5:A519780ED0A2F4336DB4F5651D79C369
SHA256:DA5B71BD0075B55757BF757BF5F4D4A1DCBCF0762CDA5B31B28680963E068C75
3860chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\BudgetDatabase\LOG.old~RFdf3e6.TMPtext
MD5:A519780ED0A2F4336DB4F5651D79C369
SHA256:DA5B71BD0075B55757BF757BF5F4D4A1DCBCF0762CDA5B31B28680963E068C75
3860chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\Feature Engagement Tracker\EventDB\LOG.old~RFdf424.TMPtext
MD5:3D551B6E929CF62F7AA66091E718704B
SHA256:1698A1B1BC3E86676392FB8BD4C712438302A5A2220503C08F290ED4B1790404
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
3
TCP/UDP connections
15
DNS requests
12
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
2948
chrome.exe
GET
301
173.254.28.170:80
http://fortrancalculus.info/download/curvfit-install.exe
US
html
329 b
unknown
2948
chrome.exe
GET
200
192.249.121.20:80
http://goal-driven.net/download/curvfit-install.exe
US
executable
7.28 Mb
suspicious
—
—
GET
200
95.101.72.176:80
http://isrg.trustid.ocsp.identrust.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBRv9GhNQxLSSGKBnMArPUcsHYovpgQUxKexpHsscfrb4UuQdf%2FEFWCFiRACEAoBQUIAAAFThXNqC4Xspwg%3D
unknown
der
1.36 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
—
—
172.217.22.78:443
clients1.google.com
Google Inc.
US
whitelisted
2948
chrome.exe
216.58.207.45:443
accounts.google.com
Google Inc.
US
whitelisted
2948
chrome.exe
172.217.16.195:443
www.gstatic.com
Google Inc.
US
whitelisted
2948
chrome.exe
173.254.28.170:80
fortrancalculus.info
Unified Layer
US
unknown
2948
chrome.exe
192.249.121.20:80
goal-driven.net
InMotion Hosting, Inc.
US
suspicious
2948
chrome.exe
216.58.207.78:443
sb-ssl.google.com
Google Inc.
US
whitelisted
2284
gup.exe
37.59.28.236:443
notepad-plus-plus.org
OVH SAS
FR
whitelisted
2948
chrome.exe
172.217.22.35:443
clientservices.googleapis.com
Google Inc.
US
whitelisted
—
—
95.101.72.176:80
isrg.trustid.ocsp.identrust.com
Akamai International B.V.
—
whitelisted
2948
chrome.exe
216.58.210.4:443
www.google.com
Google Inc.
US
whitelisted

DNS requests

Domain
IP
Reputation
fortrancalculus.info
  • 173.254.28.170
unknown
clientservices.googleapis.com
  • 172.217.22.35
whitelisted
accounts.google.com
  • 216.58.207.45
shared
goal-driven.net
  • 192.249.121.20
suspicious
www.google.com
  • 216.58.210.4
whitelisted
sb-ssl.google.com
  • 216.58.207.78
whitelisted
ssl.gstatic.com
  • 172.217.22.35
whitelisted
www.gstatic.com
  • 172.217.16.195
whitelisted
safebrowsing.googleapis.com
  • 172.217.22.106
whitelisted
clients1.google.com
  • 172.217.22.78
whitelisted

Threats

PID
Process
Class
Message
2948
chrome.exe
Potential Corporate Privacy Violation
ET POLICY PE EXE or DLL Windows file download HTTP
Process
Message
notepad++.exe
VerifyLibrary: certificate revocation checking is disabled
notepad++.exe
VerifyLibrary: certificate revocation checking is disabled
notepad++.exe
42C4C5846BB675C74E2B2C90C69AB44366401093
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Reports
http://fortrancalculus.info/download/curvfit-install.exe