netwalker | cf80fd95183ce1305becf6ea91d4ccfa0d87d923499d08939324d63c0ed22dc4

General

Target

cf80fd95183ce1305becf6ea91d4ccfa0d87d923499d08939324d63c0ed22dc4.dll
Size

57KB
MD5

1b6a2bfa39bcc335b1aff8217fe9e05f
SHA1

c21d6898e2a17bdb4a6af43534ee9c6534b244c9
SHA256

cf80fd95183ce1305becf6ea91d4ccfa0d87d923499d08939324d63c0ed22dc4
SHA512

c9feee9a867f2f9c1b1b71219f0906a547e89b138cbb1d08f6c3a5da63138df28c1752be57393ede93a7a910d86f9f3c5479bc4586ba909e94b1f18e866bb8d6

Score

10^/10

netwalker ransomware spyware

Malware Config

Extracted

Path

C:\odt\B81660-Readme.txt

Family

netwalker

Ransom Note

Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .b81660 -- If for some reason you read this text before the encryption ended, this can be understood by the fact that the computer slows down, and your heart rate has increased due to the ability to turn it off, then we recommend that you move away from the computer and accept that you have been compromised. Rebooting/shutdown will cause you to lose files without the possibility of recovery. -- Our encryption algorithms are very strong and your files are very well protected, the only way to get your files back is to cooperate with us and get the decrypter program. Do not try to recover your files without a decrypter program, you may damage them and then they will be impossible to recover. For us this is just business and to prove to you our seriousness, we will decrypt you one file for free. Just open our website, upload the encrypted file and get the decrypted file for free. -- Steps to get access on our website: 1.Download and install tor-browser: https://torproject.org/ 2.Open our website: pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion If the website is not available, open another one: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_b81660: 91iYKgM06L7TSitzEgy8guT6AhYCUQHqincZtj5a0MwMh3jxUu miR+waBWi4yWEVOJ7Q53gYAd/VRKqIo99+IFouDm5PWcJu65Yy i0otNgbdPZAuTOPPIrVmJoLi6S9FxNe45KzVc+xyL6zyD5SAQ6 SoeP189EUSvye+lOBbKn6XDdkqLhJGz5LJoBc9Fi2WFHEV1CP1 TBa3AMbIbyV8k1lfEuPA93P4k/nRN3TPzpw2dzV+0kqyRuqX0w W81PV7swc7yMBM8lIkvoBWO5OdWhbkNButcAITyg==}

URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\Users\Admin\AppData\Roaming\B81660-Readme.txt

Family

netwalker

Ransom Note

Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .b81660 -- If for some reason you read this text before the encryption ended, this can be understood by the fact that the computer slows down, and your heart rate has increased due to the ability to turn it off, then we recommend that you move away from the computer and accept that you have been compromised. Rebooting/shutdown will cause you to lose files without the possibility of recovery. -- Our encryption algorithms are very strong and your files are very well protected, the only way to get your files back is to cooperate with us and get the decrypter program. Do not try to recover your files without a decrypter program, you may damage them and then they will be impossible to recover. For us this is just business and to prove to you our seriousness, we will decrypt you one file for free. Just open our website, upload the encrypted file and get the decrypted file for free. -- Steps to get access on our website: 1.Download and install tor-browser: https://torproject.org/ 2.Open our website: pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion If the website is not available, open another one: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_b81660: 91iYKgM06L7TSitzEgy8guT6AhYCUQHqincZtj5a0MwMh3jxUu miR+waBWi4yWEVOJ7Q53gYAd/VRKqIo99+IFouDm5PWcJu65Yy i0otNgbdPZAuTOPPIrVmJoLi6S9FxNe45KzVc+xyL6zyD5SAQ6 SoeP189EUSvye+lOBbKn6XDdkqLhJGz5LJoBc9Fi2WFHEV1CP1 TBa3AMbIbyV8k1lfEuPA93P4k/nRN3TPzpw2dzV+0kqyRuqX0w W81PV7swc7yMBM8lIkvoBWO5OdWhbkNButcAITyg==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .b81660 -- If for some reason you read this text before the encryption ended, this can be understood by the fact that the computer slows down, and your heart rate has increased due to the ability to turn it off, then we recommend that you move away from the computer and accept that you have been compromised. Rebooting/shutdown will cause you to lose files without the possibility of recovery. -- Our encryption algorithms are very strong and your files are very well protected, the only way to get your files back is to cooperate with us and get the decrypter program. Do not try to recover your files without a decrypter program, you may damage them and then they will be impossible to recover. For us this is just business and to prove to you our seriousness, we will decrypt you one file for free. Just open our website, upload the encrypted file and get the decrypted file for free. -- Steps to get access on our website: 1.Download and install tor-browser: https://torproject.org/ 2.Open our website: pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion If the website is not available, open another one: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_b81660: 91iYKgM06L7TSitzEgy8guT6AhYCUQHqincZtj5a0MwMh3jxUu miR+waBWi4yWEVOJ7Q53gYAd/VRKqIo99+IFouDm5PWcJu65Yy i0otNgbdPZAuTOPPIrVmJoLi6S9FxNe45KzVc+xyL6zyD5SAQ6 SoeP189EUSvye+lOBbKn6XDdkqLhJGz5LJoBc9Fi2WFHEV1CP1 TBa3AMbIbyV8k1lfEuPA93P4k/nRN3TPzpw2dzV+0kqyRuqX0w W81PV7swc7yMBM8lIkvoBWO5OdWhbkNButcAITyg==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .b81660 -- If for some reason you read this text before the encryption ended, this can be understood by the fact that the computer slows down, and your heart rate has increased due to the ability to turn it off, then we recommend that you move away from the computer and accept that you have been compromised. Rebooting/shutdown will cause you to lose files without the possibility of recovery. -- Our encryption algorithms are very strong and your files are very well protected, the only way to get your files back is to cooperate with us and get the decrypter program. Do not try to recover your files without a decrypter program, you may damage them and then they will be impossible to recover. For us this is just business and to prove to you our seriousness, we will decrypt you one file for free. Just open our website, upload the encrypted file and get the decrypted file for free. -- Steps to get access on our website: 1.Download and install tor-browser: https://torproject.org/ 2.Open our website: pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion If the website is not available, open another one: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_b81660: 91iYKgM06L7TSitzEgy8guT6AhYCUQHqincZtj5a0MwMh3jxUu miR+waBWi4yWEVOJ7Q53gYAd/VRKqIo99+IFouDm5PWcJu65Yy i0otNgbdPZAuTOPPIrVmJoLi6S9FxNe45KzVc+xyL6zyD5SAQ6 SoeP189EUSvye+lOBbKn6XDdkqLhJGz5LJoBc9Fi2WFHEV1CP1 TBa3AMbIbyV8k1lfEuPA93P4k/nRN3TPzpw2dzV+0kqyRuqX0w W81PV7swc7yMBM8lIkvoBWO5OdWhbkNButcAITyg==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .b81660 -- If for some reason you read this text before the encryption ended, this can be understood by the fact that the computer slows down, and your heart rate has increased due to the ability to turn it off, then we recommend that you move away from the computer and accept that you have been compromised. Rebooting/shutdown will cause you to lose files without the possibility of recovery. -- Our encryption algorithms are very strong and your files are very well protected, the only way to get your files back is to cooperate with us and get the decrypter program. Do not try to recover your files without a decrypter program, you may damage them and then they will be impossible to recover. For us this is just business and to prove to you our seriousness, we will decrypt you one file for free. Just open our website, upload the encrypted file and get the decrypted file for free. -- Steps to get access on our website: 1.Download and install tor-browser: https://torproject.org/ 2.Open our website: pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion If the website is not available, open another one: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_b81660: 91iYKgM06L7TSitzEgy8guT6AhYCUQHqincZtj5a0MwMh3jxUu miR+waBWi4yWEVOJ7Q53gYAd/VRKqIo99+IFouDm5PWcJu65Yy i0otNgbdPZAuTOPPIrVmJoLi6S9FxNe45KzVc+xyL6zyD5SAQ6 SoeP189EUSvye+lOBbKn6XDdkqLhJGz5LJoBc9Fi2WFHEV1CP1 TBa3AMbIbyV8k1lfEuPA93P4k/nRN3TPzpw2dzV+0kqyRuqX0w W81PV7swc7yMBM8lIkvoBWO5OdWhbkNButcAITyg==}

URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\Users\Admin\Downloads\B81660-Readme.txt

Family

netwalker

Ransom Note

Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .b81660 -- If for some reason you read this text before the encryption ended, this can be understood by the fact that the computer slows down, and your heart rate has increased due to the ability to turn it off, then we recommend that you move away from the computer and accept that you have been compromised. Rebooting/shutdown will cause you to lose files without the possibility of recovery. -- Our encryption algorithms are very strong and your files are very well protected, the only way to get your files back is to cooperate with us and get the decrypter program. Do not try to recover your files without a decrypter program, you may damage them and then they will be impossible to recover. For us this is just business and to prove to you our seriousness, we will decrypt you one file for free. Just open our website, upload the encrypted file and get the decrypted file for free. -- Steps to get access on our website: 1.Download and install tor-browser: https://torproject.org/ 2.Open our website: pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion If the website is not available, open another one: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_b81660: 91iYKgM06L7TSitzEgy8guT6AhYCUQHqincZtj5a0MwMh3jxUu miR+waBWi4yWEVOJ7Q53gYAd/VRKqIo99+IFouDm5PWcJu65Yy i0otNgbdPZAuTOPPIrVmJoLi6S9FxNe45KzVc+xyL6zyD5SAQ6 SoeP189EUSvye+lOBbKn6XDdkqLhJGz5LJoBc9Fi2WFHEV1CP1 TBa3AMbIbyV8k1lfEuPA93P4k/nRN3TPzpw2dzV+0kqyRuqX0w W81PV7swc7yMBM8lIkvoBWO5OdWhbkNButcAITyg==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .b81660 -- If for some reason you read this text before the encryption ended, this can be understood by the fact that the computer slows down, and your heart rate has increased due to the ability to turn it off, then we recommend that you move away from the computer and accept that you have been compromised. Rebooting/shutdown will cause you to lose files without the possibility of recovery. -- Our encryption algorithms are very strong and your files are very well protected, the only way to get your files back is to cooperate with us and get the decrypter program. Do not try to recover your files without a decrypter program, you may damage them and then they will be impossible to recover. For us this is just business and to prove to you our seriousness, we will decrypt you one file for free. Just open our website, upload the encrypted file and get the decrypted file for free. -- Steps to get access on our website: 1.Download and install tor-browser: https://torproject.org/ 2.Open our website: pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion If the website is not available, open another one: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_b81660: 91iYKgM06L7TSitzEgy8guT6AhYCUQHqincZtj5a0MwMh3jxUu miR+waBWi4yWEVOJ7Q53gYAd/VRKqIo99+IFouDm5PWcJu65Yy i0otNgbdPZAuTOPPIrVmJoLi6S9FxNe45KzVc+xyL6zyD5SAQ6 SoeP189EUSvye+lOBbKn6XDdkqLhJGz5LJoBc9Fi2WFHEV1CP1 TBa3AMbIbyV8k1lfEuPA93P4k/nRN3TPzpw2dzV+0kqyRuqX0w W81PV7swc7yMBM8lIkvoBWO5OdWhbkNButcAITyg==}

URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\Users\Admin\Desktop\B81660-Readme.txt

Family

netwalker

Ransom Note

Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .b81660 -- If for some reason you read this text before the encryption ended, this can be understood by the fact that the computer slows down, and your heart rate has increased due to the ability to turn it off, then we recommend that you move away from the computer and accept that you have been compromised. Rebooting/shutdown will cause you to lose files without the possibility of recovery. -- Our encryption algorithms are very strong and your files are very well protected, the only way to get your files back is to cooperate with us and get the decrypter program. Do not try to recover your files without a decrypter program, you may damage them and then they will be impossible to recover. For us this is just business and to prove to you our seriousness, we will decrypt you one file for free. Just open our website, upload the encrypted file and get the decrypted file for free. -- Steps to get access on our website: 1.Download and install tor-browser: https://torproject.org/ 2.Open our website: pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion If the website is not available, open another one: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_b81660: 91iYKgM06L7TSitzEgy8guT6AhYCUQHqincZtj5a0MwMh3jxUu miR+waBWi4yWEVOJ7Q53gYAd/VRKqIo99+IFouDm5PWcJu65Yy i0otNgbdPZAuTOPPIrVmJoLi6S9FxNe45KzVc+xyL6zyD5SAQ6 SoeP189EUSvye+lOBbKn6XDdkqLhJGz5LJoBc9Fi2WFHEV1CP1 TBa3AMbIbyV8k1lfEuPA93P4k/nRN3TPzpw2dzV+0kqyRuqX0w W81PV7swc7yMBM8lIkvoBWO5OdWhbkNButcAITyg==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .b81660 -- If for some reason you read this text before the encryption ended, this can be understood by the fact that the computer slows down, and your heart rate has increased due to the ability to turn it off, then we recommend that you move away from the computer and accept that you have been compromised. Rebooting/shutdown will cause you to lose files without the possibility of recovery. -- Our encryption algorithms are very strong and your files are very well protected, the only way to get your files back is to cooperate with us and get the decrypter program. Do not try to recover your files without a decrypter program, you may damage them and then they will be impossible to recover. For us this is just business and to prove to you our seriousness, we will decrypt you one file for free. Just open our website, upload the encrypted file and get the decrypted file for free. -- Steps to get access on our website: 1.Download and install tor-browser: https://torproject.org/ 2.Open our website: pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion If the website is not available, open another one: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_b81660: 91iYKgM06L7TSitzEgy8guT6AhYCUQHqincZtj5a0MwMh3jxUu miR+waBWi4yWEVOJ7Q53gYAd/VRKqIo99+IFouDm5PWcJu65Yy i0otNgbdPZAuTOPPIrVmJoLi6S9FxNe45KzVc+xyL6zyD5SAQ6 SoeP189EUSvye+lOBbKn6XDdkqLhJGz5LJoBc9Fi2WFHEV1CP1 TBa3AMbIbyV8k1lfEuPA93P4k/nRN3TPzpw2dzV+0kqyRuqX0w W81PV7swc7yMBM8lIkvoBWO5OdWhbkNButcAITyg==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .b81660 -- If for some reason you read this text before the encryption ended, this can be understood by the fact that the computer slows down, and your heart rate has increased due to the ability to turn it off, then we recommend that you move away from the computer and accept that you have been compromised. Rebooting/shutdown will cause you to lose files without the possibility of recovery. -- Our encryption algorithms are very strong and your files are very well protected, the only way to get your files back is to cooperate with us and get the decrypter program. Do not try to recover your files without a decrypter program, you may damage them and then they will be impossible to recover. For us this is just business and to prove to you our seriousness, we will decrypt you one file for free. Just open our website, upload the encrypted file and get the decrypted file for free. -- Steps to get access on our website: 1.Download and install tor-browser: https://torproject.org/ 2.Open our website: pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion If the website is not available, open another one: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_b81660: 91iYKgM06L7TSitzEgy8guT6AhYCUQHqincZtj5a0MwMh3jxUu miR+waBWi4yWEVOJ7Q53gYAd/VRKqIo99+IFouDm5PWcJu65Yy i0otNgbdPZAuTOPPIrVmJoLi6S9FxNe45KzVc+xyL6zyD5SAQ6 SoeP189EUSvye+lOBbKn6XDdkqLhJGz5LJoBc9Fi2WFHEV1CP1 TBa3AMbIbyV8k1lfEuPA93P4k/nRN3TPzpw2dzV+0kqyRuqX0w W81PV7swc7yMBM8lIkvoBWO5OdWhbkNButcAITyg==}

URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Signatures

Netwalker Ransomware
Ransomware family with multiple versions. Also known as MailTo.
ransomware netwalker

Modifies extensions of user files 3 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

rundll32.exe

description	ioc	process
File renamed	C:\Users\Admin\Pictures\StepImport.tif => C:\Users\Admin\Pictures\StepImport.tif.b81660	rundll32.exe
File renamed	C:\Users\Admin\Pictures\InitializeBlock.crw => C:\Users\Admin\Pictures\InitializeBlock.crw.b81660	rundll32.exe
File renamed	C:\Users\Admin\Pictures\PublishStart.png => C:\Users\Admin\Pictures\PublishStart.png.b81660	rundll32.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

Drops file in Program Files directory 17186 IoCs

Processes:

rundll32.exe

description	ioc	process
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_11.8.204.0_x64__kzf8qxf38zg5c\SkypeApp\Designs\Flags\large\tn_60x42.png	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\aicuc\js\nls\root\ui-strings.js	rundll32.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\sign-services-auth\js\nls\hr-hr\B81660-Readme.txt	rundll32.exe
File opened for modification	C:\Program Files\7-Zip\Lang\es.txt	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Windows.Photos_16.511.8780.0_x64__8wekyb3d8bbwe\Assets\PhotosAppList.targetsize-16_altform-fullcolor.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneVideo_10.16112.11601.0_x64__8wekyb3d8bbwe\Assets\contrast-black\AppList.targetsize-32_contrast-black.png	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\on-boarding\images\themeless\HomeBanner.svg	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\mc.jar	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_11.8.204.0_x64__kzf8qxf38zg5c\SkypeApp\Designs\Flags\small\ht_16x11.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_3.14.1181.0_x64__8wekyb3d8bbwe\Assets\Themes\Western\mask\12d.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Windows.Photos_16.511.8780.0_x64__8wekyb3d8bbwe\Assets\PhotosAppList.targetsize-72_altform-fullcolor.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1611.10393.0_x64__8wekyb3d8bbwe\Assets\SecondaryTiles\Directions\Car\RTL\contrast-black\SmallTile.scale-200.png	rundll32.exe
File created	C:\Program Files\Java\jdk1.8.0_66\lib\visualvm\profiler\lib\B81660-Readme.txt	rundll32.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\sdxs\FA000000018\index.win32.bundle.map	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_11.8.204.0_x64__kzf8qxf38zg5c\SkypeApp\Designs\Emoticons\small\clapping.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\HxCalendarAppList.scale-150.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneVideo_10.16112.11601.0_x64__8wekyb3d8bbwe\Assets\contrast-black\SmallLogo.scale-100_contrast-black.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\5613_40x40x32.png	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\aicuc\js\plugins\selection-action-plugins\epdf\plugin.js	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1702.333.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\AlarmsMedTile.contrast-black_scale-100.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.3DBuilder_13.0.10349.0_x64__8wekyb3d8bbwe\Assets\Catalog\traintrackconnector.3mf	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_17.7668.58071.0_x64__8wekyb3d8bbwe\images\contrast-black\OneNoteSectionSmallTile.scale-100.png	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\digsig\images\themes\dark\digsig_icons_2x.png	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\scan-files\images\themeless\inline-error-1x.png	rundll32.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\locale\ru\LC_MESSAGES\vlc.mo	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_3.14.1181.0_x64__8wekyb3d8bbwe\Assets\ThemeCreation\lobby_deck_style_aquarium.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\5311_24x24x32.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\6924_20x20x32.png	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.notification_5.5.0.165303\html\dcommon\html\cpyr.htm	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\editpdf\js\nls\nb-no\ui-strings.js	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\plugins\org.eclipse.ecf_3.4.0.v20140827-1444.jar	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_17.7668.58071.0_x64__8wekyb3d8bbwe\images\OneNoteAppList.targetsize-36_altform-unplated.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MSPaint_1.1702.28017.0_x64__8wekyb3d8bbwe\Assets\Logos\SplashScreen\PaintSplashScreen.scale-400.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_17.7668.58071.0_x64__8wekyb3d8bbwe\images\OneNoteAppList.targetsize-32_altform-unplated.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxApp_25.25.13009.0_x64__8wekyb3d8bbwe\Assets\GamesXboxHubAppList.targetsize-36_altform-unplated_contrast-white.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\contrast-white\HxMailAppList.targetsize-60_altform-unplated.png	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\lib\visualvm\platform\modules\org-netbeans-modules-settings.jar	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_11.8.204.0_x64__kzf8qxf38zg5c\SkypeApp\Designs\Flags\large\gy_60x42.png	rundll32.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\files\dev\nls\it-it\B81660-Readme.txt	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_3.14.1181.0_x64__8wekyb3d8bbwe\Arkadium.Win10.Awards\Assets\Awards_cup.png	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\unified-share\images\Confirmation2x.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.10252.0_x64__8wekyb3d8bbwe\Assets\contrast-white\AppPackageAppList.targetsize-30_contrast-white.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Messaging_3.26.24002.0_neutral_split.scale-150_8wekyb3d8bbwe\Assets\starttile.smile.small.scale-150.png	rundll32.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\1033\PREVIEWTEMPLATE.POTX	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1611.10393.0_x64__8wekyb3d8bbwe\Assets\Voices\beeps\beeps\beep	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.3DBuilder_13.0.10349.0_x64__8wekyb3d8bbwe\Assets\manifestAssets\contrast-black\Square44x44Logo.targetsize-24_altform-unplated.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_17.7668.58071.0_x64__8wekyb3d8bbwe\images\contrast-white\OneNoteSectionGroupMedTile.scale-200.png	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\THIRDPARTYLICENSEREADME-JAVAFX.txt	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_11.8.204.0_x64__kzf8qxf38zg5c\SkypeApp\Designs\Emoticons\large\whew.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1702.333.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\StopwatchSmallTile.scale-100.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxApp_25.25.13009.0_x64__8wekyb3d8bbwe\Gamerpics.winmd	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\5601_48x48x32.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_11.8.204.0_x64__kzf8qxf38zg5c\SkypeApp\Designs\Flags\small\tw_16x11.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.WindowsMaps_5.1611.10393.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\Images\Ratings\Yelp8.scale-125.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.WindowsSoundRecorder_10.1702.301.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\VoiceRecorderLargeTile.scale-125.png	rundll32.exe
File opened for modification	C:\Program Files\Microsoft Office\root\rsod\proof.fr-fr.msi.16.fr-fr.boot.tree.dat	rundll32.exe
File created	C:\Program Files\Java\jdk1.8.0_66\lib\missioncontrol\features\org.eclipse.ecf.core.feature_1.1.0.v20140827-1444\B81660-Readme.txt	rundll32.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\core\dev\nls\hr-hr\B81660-Readme.txt	rundll32.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusR_OEM_Perp4-ul-phn.xrm-ms	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.Windows.Photos_16.511.8780.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\PhotosWideTile.contrast-black_scale-125.png	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\lib\visualvm\profiler\config\Modules\org-netbeans-lib-profiler-ui.xml	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCamera_2017.125.40.0_x64__8wekyb3d8bbwe\Assets\WindowsIcons\WindowsCameraAppList.contrast-white_targetsize-64.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_3.14.1181.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\SplashScreen.scale-125.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.1702.312.0_x64__8wekyb3d8bbwe\Assets\CalculatorAppList.contrast-white_targetsize-72.png	rundll32.exe

Suspicious behavior: EnumeratesProcesses 3016 IoCs

Processes:

rundll32.exe

pid	process
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe
1892	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

rundll32.exe

description pid process

Token: SeDebugPrivilege 1892 rundll32.exe
Token: SeImpersonatePrivilege 1892 rundll32.exe

description	pid	process
Token: SeDebugPrivilege	1892	rundll32.exe
Token: SeImpersonatePrivilege	1892	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 1048 wrote to memory of 1892	1048	rundll32.exe	rundll32.exe
PID 1048 wrote to memory of 1892	1048	rundll32.exe	rundll32.exe
PID 1048 wrote to memory of 1892	1048	rundll32.exe	rundll32.exe
PID 1892 wrote to memory of 5436	1892	rundll32.exe	notepad.exe
PID 1892 wrote to memory of 5436	1892	rundll32.exe	notepad.exe
PID 1892 wrote to memory of 5436	1892	rundll32.exe	notepad.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\cf80fd95183ce1305becf6ea91d4ccfa0d87d923499d08939324d63c0ed22dc4.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1048

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\cf80fd95183ce1305becf6ea91d4ccfa0d87d923499d08939324d63c0ed22dc4.dll,#1
2⤵
- Modifies extensions of user files
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1892

C:\Windows\SysWOW64\notepad.exe
C:\Windows\system32\notepad.exe "C:\Users\Admin\Desktop\B81660-Readme.txt"
3⤵
PID:5436

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\Desktop\B81660-Readme.txt
MD5
7d928da368d357bba7dfe46770eb36b2

SHA1
2f5603d7e1ddc0e299a15e8986093d9b3484e7ee

SHA256
14888f3b4b83681cace0eb6458d6ea93365468326aff3e4732b32c46e8770bf3

SHA512
405fa1681aeff80d6d7e1d51df7d3ec067b10af5e04582f9534b0ceeb2ef7ed22182347b3321f9ba693565b0a9c3f2f09f80cff53b135b5ba8e23610e5bcd9b2

Download Submit
memory/1892-0-0x0000000000000000-mapping.dmp

Download
memory/5436-1-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads