hxxps://cloud[.]bluestacks[.]com/api/getdownloadnow?platform=win&win_version=10&mac_version=&client_uuid=b3eb443b-13c1-44ca-bd20-bdfd87b82d02&app_pkg=&platform_cloud=%257B%2522description%2522%253A%2522Chrome%2520108[.]0[.]0[.]0%2520on%2520Windows%252010%252064-bit%2522%252C%2522layout%2522%253A%2522Blink%2522%252C%2522manufacturer%2522%253Anull%252C%2522name%2522%253A%2522Chrome%2522%252C%2522prerelease%2522%253Anull%252C%2522product%2522%253Anull%252C%2522ua%2522%253A%2522Mozilla%252F5[.]0%2520(Windows%2520NT%252010[.]0%253B%2520Win64%253B%2520x64)%2520AppleWebKit%252F537[.]36%2520(KHTML%252C%2520like%2520Gecko)%2520Chrome%252F108[.]0[.]0[.]0%2520Safari%252F537[.]36%2522%252C%2522version%2522%253A%2522108[.]0[.]0[.]0%2522%252C%2522os%2522%253A%257B%2522architecture%2522%253A64%252C%2522family%2522%253A%2522Windows%2522%252C%2522version%2522%253A%252210%2522%257D%257D&preferred_lang=es&utm_source=&utm_medium=&gaCookie=&gclid=&clickid=&msclkid=&affiliateId=&offerId=&transaction_id=&aff_sub=&first_landing_page=&referrer=&download_page_referrer=&utm_campaign=homepage-dl-button-es&user_id=&exit_utm_campaign=homepage-dl-button-es&incompatible=false&bluestacks_version=bs5&device_memory=4&device_cpu_cores=4

Analysis

max time kernel
66s
max time network
132s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
07-01-2023 14:08

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General

Target

https://cloud.bluestacks.com/api/getdownloadnow?platform=win&win_version=10&mac_version=&client_uuid=b3eb443b-13c1-44ca-bd20-bdfd87b82d02&app_pkg=&platform_cloud=%257B%2522description%2522%253A%2522Chrome%2520108.0.0.0%2520on%2520Windows%252010%252064-bit%2522%252C%2522layout%2522%253A%2522Blink%2522%252C%2522manufacturer%2522%253Anull%252C%2522name%2522%253A%2522Chrome%2522%252C%2522prerelease%2522%253Anull%252C%2522product%2522%253Anull%252C%2522ua%2522%253A%2522Mozilla%252F5.0%2520(Windows%2520NT%252010.0%253B%2520Win64%253B%2520x64)%2520AppleWebKit%252F537.36%2520(KHTML%252C%2520like%2520Gecko)%2520Chrome%252F108.0.0.0%2520Safari%252F537.36%2522%252C%2522version%2522%253A%2522108.0.0.0%2522%252C%2522os%2522%253A%257B%2522architecture%2522%253A64%252C%2522family%2522%253A%2522Windows%2522%252C%2522version%2522%253A%252210%2522%257D%257D&preferred_lang=es&utm_source=&utm_medium=&gaCookie=&gclid=&clickid=&msclkid=&affiliateId=&offerId=&transaction_id=&aff_sub=&first_landing_page=&referrer=&download_page_referrer=&utm_campaign=homepage-dl-button-es&user_id=&exit_utm_campaign=homepage-dl-button-es&incompatible=false&bluestacks_version=bs5&device_memory=4&device_cpu_cores=4

Score

8^/10

Malware Config

Signatures

Downloads MZ/PE file

Modifies Internet Explorer Phishing Filter 1 TTPs 2 IoCs

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\PhishingFilter	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\PhishingFilter\ClientSupported_MigrationTime = e04272ffa922d901	iexplore.exe

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MINIE	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MINIE\TabBandWidth = "500"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{36A55D11-8E9D-11ED-BD84-7E4CDA66D2DC} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "379869114"	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1972	iexplore.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1972	iexplore.exe
1972	iexplore.exe
1104	IEXPLORE.EXE
1104	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1972 wrote to memory of 1104	1972	iexplore.exe	29
PID 1972 wrote to memory of 1104	1972	iexplore.exe	29
PID 1972 wrote to memory of 1104	1972	iexplore.exe	29
PID 1972 wrote to memory of 1104	1972	iexplore.exe	29

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" https://cloud.bluestacks.com/api/getdownloadnow?platform=win&win_version=10&mac_version=&client_uuid=b3eb443b-13c1-44ca-bd20-bdfd87b82d02&app_pkg=&platform_cloud=%257B%2522description%2522%253A%2522Chrome%2520108.0.0.0%2520on%2520Windows%252010%252064-bit%2522%252C%2522layout%2522%253A%2522Blink%2522%252C%2522manufacturer%2522%253Anull%252C%2522name%2522%253A%2522Chrome%2522%252C%2522prerelease%2522%253Anull%252C%2522product%2522%253Anull%252C%2522ua%2522%253A%2522Mozilla%252F5.0%2520(Windows%2520NT%252010.0%253B%2520Win64%253B%2520x64)%2520AppleWebKit%252F537.36%2520(KHTML%252C%2520like%2520Gecko)%2520Chrome%252F108.0.0.0%2520Safari%252F537.36%2522%252C%2522version%2522%253A%2522108.0.0.0%2522%252C%2522os%2522%253A%257B%2522architecture%2522%253A64%252C%2522family%2522%253A%2522Windows%2522%252C%2522version%2522%253A%252210%2522%257D%257D&preferred_lang=es&utm_source=&utm_medium=&gaCookie=&gclid=&clickid=&msclkid=&affiliateId=&offerId=&transaction_id=&aff_sub=&first_landing_page=&referrer=&download_page_referrer=&utm_campaign=homepage-dl-button-es&user_id=&exit_utm_campaign=homepage-dl-button-es&incompatible=false&bluestacks_version=bs5&device_memory=4&device_cpu_cores=4
1⤵
- Modifies Internet Explorer Phishing Filter
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1972
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1972 CREDAT:275457 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:1104

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
61KB

MD5
fc4666cbca561e864e7fdf883a9e6661

SHA1
2f8d6094c7a34bf12ea0bbf0d51ee9c5bb7939a5

SHA256
10f3deb6c452d749a7451b5d065f4c0449737e5ee8a44f4d15844b503141e65b

SHA512
c71f54b571e01f247f072be4bbebdf5d8410b67eb79a61e7e0d9853fe857ab9bd12f53e6af3394b935560178107291fc4be351b27deb388eba90ba949633d57d

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
304B

MD5
d17c325e8c852cbece8b0d80d0e827dc

SHA1
5fb78761318b0080d9594926a2ced121282ad08f

SHA256
7140355feed1b71ff143e8af3eb3d30e640da440b3b6ccc9a708a525e4a5a06b

SHA512
e4f7a64ce1437eb9e395f6f0abdab0d11064a0db9fe22c058f55b4bf324f499e7f43a6dbe1e5b7196eef93b1a9159fea2befd66732ebe8e9fe06c4f837375d5d

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\Y7UJPUAU.txt

Filesize
603B

MD5
48597239625634b82f6cbefca7c787cf

SHA1
ae922e3ed25cd1cf5db996a16a1f5841efc883f2

SHA256
6defe72f3f84427448f9406877835c039a99de8dda19d29ad070716ca63fcd07

SHA512
95e4c1faa112afe77ada17a3d07d6741642365b97573b9d33485b7fd63e25e8eab68ec2339c50946baddc9a235f2f411bc06fe7c922ef7a96afc294d3b1a4bef

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Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads