hxxp://googleads[.]g[.]doubleclick[.]net/pagead/viewthroughconversion/695735168/?random=1682060255043&cv=11&fst=1682060255043&bg=ffffff&guid=ON&async=1&gtm=45be34j0&u_w=1920&u_h=1080&url=hxxps://thai[.]monkeytravel[.]com/user/product/product_info[.]php?product_id=1076752430&checkInDate=2023-06-01&checkOutDate=2023-06-06&amount=&adult=&child=&age=&ref=hxxps://thai[.]monkeytravel[.]com/user/product/product_list[.]php?city_id=21&part=hotel&age=&mapSearchYN=N&checkInDate=2023-06-01&checkOutDate=2023-06-06&name=%EC%98%A4%EB%A6%AC%EC%97%94%ED%83%88&topSerachDetailBtnOpen=N&priceFrom=&priceTo=&currentp=KRW&topSerachDetailBtnOpen=N&scrollTop=Y&hn=www[.]googleadservices[.]com&frm=0&tiba=더 오리엔탈 시암 리조트 (The Oriental Siam Resort) - 몽키트래블&auid=856196684[.]1682056151&uaa=x86&uab=64&uafvl=Chromium;112[.]0[.]5615[.]138|Google%20Chrome;112[.]0[.]5615[.]138|Not%3AA-Brand;99[.]0[.]0[.]0&uamb=0&uap=Windows&uapv=10[.]0[.]0&uaw=0&data=event=view_item;id=1076752430&rfmt=3&fmt=4

General

Target

http://googleads.g.doubleclick.net/pagead/viewthroughconversion/695735168/?random=1682060255043&cv=11&fst=1682060255043&bg=ffffff&guid=ON&async=1&gtm=45be34j0&u_w=1920&u_h=1080&url=https://thai.monkeytravel.com/user/product/product_info.php?product_id=1076752430&checkInDate=2023-06-01&checkOutDate=2023-06-06&amount=&adult=&child=&age=&ref=https://thai.monkeytravel.com/user/product/product_list.php?city_id=21&part=hotel&age=&mapSearchYN=N&checkInDate=2023-06-01&checkOutDate=2023-06-06&name=%EC%98%A4%EB%A6%AC%EC%97%94%ED%83%88&topSerachDetailBtnOpen=N&priceFrom=&priceTo=&currentp=KRW&topSerachDetailBtnOpen=N&scrollTop=Y&hn=www.googleadservices.com&frm=0&tiba=더 오리엔탈 시암 리조트 (The Oriental Siam Resort) - 몽키트래블&auid=856196684.1682056151&uaa=x86&uab=64&uafvl=Chromium;112.0.5615.138|Google%20Chrome;112.0.5615.138|Not%3AA-Brand;99.0.0.0&uamb=0&uap=Windows&uapv=10.0.0&uaw=0&data=event=view_item;id=1076752430&rfmt=3&fmt=4

Score

1^/10

Malware Config

Signatures

Modifies Internet Explorer Phishing Filter 1 TTPs 2 IoCs

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\PhishingFilter	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\PhishingFilter\ClientSupported_MigrationTime = 402aab7ba945d901	iexplore.exe

Modifies Internet Explorer settings 1 TTPs 15 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\MINIE\TabBandWidth = "500"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\RepId	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{0F1A839B-E013-11ED-8FFF-FA48AF8140A7} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\RepId\PublicId = "{F18806D9-D8AD-48A7-BD59-FBA73DB4DF77}"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Internet Explorer\MINIE	iexplore.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
4892	NOTEPAD.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
680	iexplore.exe
680	iexplore.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
680	iexplore.exe
680	iexplore.exe
4324	IEXPLORE.EXE
4324	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 680 wrote to memory of 4324	680	iexplore.exe	85
PID 680 wrote to memory of 4324	680	iexplore.exe	85
PID 680 wrote to memory of 4324	680	iexplore.exe	85

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" "http://googleads.g.doubleclick.net/pagead/viewthroughconversion/695735168/?random=1682060255043&cv=11&fst=1682060255043&bg=ffffff&guid=ON&async=1&gtm=45be34j0&u_w=1920&u_h=1080&url=https://thai.monkeytravel.com/user/product/product_info.php?product_id=1076752430&checkInDate=2023-06-01&checkOutDate=2023-06-06&amount=&adult=&child=&age=&ref=https://thai.monkeytravel.com/user/product/product_list.php?city_id=21&part=hotel&age=&mapSearchYN=N&checkInDate=2023-06-01&checkOutDate=2023-06-06&name=%EC%98%A4%EB%A6%AC%EC%97%94%ED%83%88&topSerachDetailBtnOpen=N&priceFrom=&priceTo=&currentp=KRW&topSerachDetailBtnOpen=N&scrollTop=Y&hn=www.googleadservices.com&frm=0&tiba=더 오리엔탈 시암 리조트 (The Oriental Siam Resort) - 몽키트래블&auid=856196684.1682056151&uaa=x86&uab=64&uafvl=Chromium;112.0.5615.138|Google%20Chrome;112.0.5615.138|Not%3AA-Brand;99.0.0.0&uamb=0&uap=Windows&uapv=10.0.0&uaw=0&data=event=view_item;id=1076752430&rfmt=3&fmt=4"
1⤵
- Modifies Internet Explorer Phishing Filter
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:680
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:680 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:4324
- C:\Windows\system32\NOTEPAD.EXE
  "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\EY3KXMB3\f.txt
  2⤵
  - Opens file in notepad (likely ransom note)
  PID:4892

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\EY3KXMB3\f.txt.unmjtwl.partial

Filesize
43B

MD5
ad8b6f08655797587cdec719a94efe59

SHA1
182adf5a140796f81e930649d05654dbf22fd5b7

SHA256
77d5fe96defd6c8c1e3b0466b4827cf83dc7e5c727a10177e115d25132fa86f6

SHA512
519a8ea7ce2ed8661cc72d58bc0c02e721ef8e64608f4d2e26a56a970d43ebbf21bdf579c543ee1dfd667da8f87467c60111a3e6d246d435a5c2d066ab88efa3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\U4IULL1L\f[1].txt

Filesize
43B

MD5
ad8b6f08655797587cdec719a94efe59

SHA1
182adf5a140796f81e930649d05654dbf22fd5b7

SHA256
77d5fe96defd6c8c1e3b0466b4827cf83dc7e5c727a10177e115d25132fa86f6

SHA512
519a8ea7ce2ed8661cc72d58bc0c02e721ef8e64608f4d2e26a56a970d43ebbf21bdf579c543ee1dfd667da8f87467c60111a3e6d246d435a5c2d066ab88efa3

Download Submit

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads