netwalker | e3e75e15fd7f6a8233e33c8a8e127cee36706025451644cf8618a0876fd0e95f

General

Target

e3e75e15fd7f6a8233e33c8a8e127cee36706025451644cf8618a0876fd0e95f.bin.dll
Size

57KB
MD5

997f0ec7fcfa440d58443922651a2b0a
SHA1

6bd08ea17de7987451757b549984a443cf08b401
SHA256

e3e75e15fd7f6a8233e33c8a8e127cee36706025451644cf8618a0876fd0e95f
SHA512

c80320dc518936d88e283dc27a5cab5575d12f6c14af994ec79730aed31c61f89e631db1e04673a0dfa0ef8e56fd1ad4029def2210c3e0a3348c44cc6df11c1f

Score

10^/10

netwalker ransomware spyware

Malware Config

Extracted

Path

C:\odt\C52B64-Readme.txt

Family

netwalker

Ransom Note

Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .c52b64 -- 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_c52ePWGvYeIxnaFF8O4tLeMav7vqePYtqHcRFrQf7q3Trnk9/+LXN +wG1JWawUr5cSiBPVMzsGv9AS59SoRi7MW6o26Mjq9cRklQNnK oJM4LMt5EFnu18j0/wTWoz7dtKftQAwbd5M1zta0/1Ou5k1yqU PgvJZ6nIfKm1THKkSEjkKS6obJbPVIracin+mDsZ0OtBpxTFlk ubPphWLoKS3SiRP4y9+eNFqjqjv17gRAt9HCzL7iJ4smlShYVu pdALn0a548LKJs7eCdvLboiYe657pkNCl5mS36Hg==: ePWGvYeIxnaFF8O4tLeMav7vqePYtqHcRFrQf7q3Trnk9/+LXN +wG1JWawUr5cSiBPVMzsGv9AS59SoRi7MW6o26Mjq9cRklQNnK oJM4LMt5EFnu18j0/wTWoz7dtKftQAwbd5M1zta0/1Ou5k1yqU PgvJZ6nIfKm1THKkSEjkKS6obJbPVIracin+mDsZ0OtBpxTFlk ubPphWLoKS3SiRP4y9+eNFqjqjv17gRAt9HCzL7iJ4smlShYVu pdALn0a548LKJs7eCdvLboiYe657pkNCl5mS36Hg==}

URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\C52B64-Readme.txt

Family

netwalker

Ransom Note

Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .c52b64 -- 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_c52ePWGvYeIxnaFF8O4tLeMav7vqePYtqHcRFrQf7q3Trnk9/+LXN +wG1JWawUr5cSiBPVMzsGv9AS59SoRi7MW6o26Mjq9cRklQNnK oJM4LMt5EFnu18j0/wTWoz7dtKftQAwbd5M1zta0/1Ou5k1yqU PgvJZ6nIfKm1THKkSEjkKS6obJbPVIracin+mDsZ0OtBpxTFlk ubPphWLoKS3SiRP4y9+eNFqjqjv17gRAt9HCzL7iJ4smlShYVu pdALn0a548LKJs7eCdvLboiYe657pkNCl5mS36Hg==: ePWGvYeIxnaFF8O4tLeMav7vqePYtqHcRFrQf7q3Trnk9/+LXN +wG1JWawUr5cSiBPVMzsGv9AS59SoRi7MW6o26Mjq9cRklQNnK oJM4LMt5EFnu18j0/wTWoz7dtKftQAwbd5M1zta0/1Ou5k1yqU PgvJZ6nIfKm1THKkSEjkKS6obJbPVIracin+mDsZ0OtBpxTFlk ubPphWLoKS3SiRP4y9+eNFqjqjv17gRAt9HCzL7iJ4smlShYVu pdALn0a548LKJs7eCdvLboiYe657pkNCl5mS36Hg==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .c52b64 -- 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_c52ePWGvYeIxnaFF8O4tLeMav7vqePYtqHcRFrQf7q3Trnk9/+LXN +wG1JWawUr5cSiBPVMzsGv9AS59SoRi7MW6o26Mjq9cRklQNnK oJM4LMt5EFnu18j0/wTWoz7dtKftQAwbd5M1zta0/1Ou5k1yqU PgvJZ6nIfKm1THKkSEjkKS6obJbPVIracin+mDsZ0OtBpxTFlk ubPphWLoKS3SiRP4y9+eNFqjqjv17gRAt9HCzL7iJ4smlShYVu pdALn0a548LKJs7eCdvLboiYe657pkNCl5mS36Hg==: ePWGvYeIxnaFF8O4tLeMav7vqePYtqHcRFrQf7q3Trnk9/+LXN +wG1JWawUr5cSiBPVMzsGv9AS59SoRi7MW6o26Mjq9cRklQNnK oJM4LMt5EFnu18j0/wTWoz7dtKftQAwbd5M1zta0/1Ou5k1yqU PgvJZ6nIfKm1THKkSEjkKS6obJbPVIracin+mDsZ0OtBpxTFlk ubPphWLoKS3SiRP4y9+eNFqjqjv17gRAt9HCzL7iJ4smlShYVu pdALn0a548LKJs7eCdvLboiYe657pkNCl5mS36Hg==}

URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\Users\Admin\Documents\C52B64-Readme.txt

Family

netwalker

Ransom Note

Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .c52b64 -- 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_c52ePWGvYeIxnaFF8O4tLeMav7vqePYtqHcRFrQf7q3Trnk9/+LXN +wG1JWawUr5cSiBPVMzsGv9AS59SoRi7MW6o26Mjq9cRklQNnK oJM4LMt5EFnu18j0/wTWoz7dtKftQAwbd5M1zta0/1Ou5k1yqU PgvJZ6nIfKm1THKkSEjkKS6obJbPVIracin+mDsZ0OtBpxTFlk ubPphWLoKS3SiRP4y9+eNFqjqjv17gRAt9HCzL7iJ4smlShYVu pdALn0a548LKJs7eCdvLboiYe657pkNCl5mS36Hg==: ePWGvYeIxnaFF8O4tLeMav7vqePYtqHcRFrQf7q3Trnk9/+LXN +wG1JWawUr5cSiBPVMzsGv9AS59SoRi7MW6o26Mjq9cRklQNnK oJM4LMt5EFnu18j0/wTWoz7dtKftQAwbd5M1zta0/1Ou5k1yqU PgvJZ6nIfKm1THKkSEjkKS6obJbPVIracin+mDsZ0OtBpxTFlk ubPphWLoKS3SiRP4y9+eNFqjqjv17gRAt9HCzL7iJ4smlShYVu pdALn0a548LKJs7eCdvLboiYe657pkNCl5mS36Hg==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .c52b64 -- 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_c52ePWGvYeIxnaFF8O4tLeMav7vqePYtqHcRFrQf7q3Trnk9/+LXN +wG1JWawUr5cSiBPVMzsGv9AS59SoRi7MW6o26Mjq9cRklQNnK oJM4LMt5EFnu18j0/wTWoz7dtKftQAwbd5M1zta0/1Ou5k1yqU PgvJZ6nIfKm1THKkSEjkKS6obJbPVIracin+mDsZ0OtBpxTFlk ubPphWLoKS3SiRP4y9+eNFqjqjv17gRAt9HCzL7iJ4smlShYVu pdALn0a548LKJs7eCdvLboiYe657pkNCl5mS36Hg==: ePWGvYeIxnaFF8O4tLeMav7vqePYtqHcRFrQf7q3Trnk9/+LXN +wG1JWawUr5cSiBPVMzsGv9AS59SoRi7MW6o26Mjq9cRklQNnK oJM4LMt5EFnu18j0/wTWoz7dtKftQAwbd5M1zta0/1Ou5k1yqU PgvJZ6nIfKm1THKkSEjkKS6obJbPVIracin+mDsZ0OtBpxTFlk ubPphWLoKS3SiRP4y9+eNFqjqjv17gRAt9HCzL7iJ4smlShYVu pdALn0a548LKJs7eCdvLboiYe657pkNCl5mS36Hg==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .c52b64 -- 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_c52ePWGvYeIxnaFF8O4tLeMav7vqePYtqHcRFrQf7q3Trnk9/+LXN +wG1JWawUr5cSiBPVMzsGv9AS59SoRi7MW6o26Mjq9cRklQNnK oJM4LMt5EFnu18j0/wTWoz7dtKftQAwbd5M1zta0/1Ou5k1yqU PgvJZ6nIfKm1THKkSEjkKS6obJbPVIracin+mDsZ0OtBpxTFlk ubPphWLoKS3SiRP4y9+eNFqjqjv17gRAt9HCzL7iJ4smlShYVu pdALn0a548LKJs7eCdvLboiYe657pkNCl5mS36Hg==: ePWGvYeIxnaFF8O4tLeMav7vqePYtqHcRFrQf7q3Trnk9/+LXN +wG1JWawUr5cSiBPVMzsGv9AS59SoRi7MW6o26Mjq9cRklQNnK oJM4LMt5EFnu18j0/wTWoz7dtKftQAwbd5M1zta0/1Ou5k1yqU PgvJZ6nIfKm1THKkSEjkKS6obJbPVIracin+mDsZ0OtBpxTFlk ubPphWLoKS3SiRP4y9+eNFqjqjv17gRAt9HCzL7iJ4smlShYVu pdALn0a548LKJs7eCdvLboiYe657pkNCl5mS36Hg==}

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 6 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

rundll32.exe

description	ioc	process
File opened for modification	C:\Users\Admin\Pictures\SuspendSwitch.tiff	rundll32.exe
File opened for modification	C:\Users\Admin\Pictures\ReceiveOptimize.tiff	rundll32.exe
File renamed	C:\Users\Admin\Pictures\SuspendSwitch.tiff => C:\Users\Admin\Pictures\SuspendSwitch.tiff.c52b64	rundll32.exe
File renamed	C:\Users\Admin\Pictures\SearchEnter.tif => C:\Users\Admin\Pictures\SearchEnter.tif.c52b64	rundll32.exe
File renamed	C:\Users\Admin\Pictures\ReceiveOptimize.tiff => C:\Users\Admin\Pictures\ReceiveOptimize.tiff.c52b64	rundll32.exe
File renamed	C:\Users\Admin\Pictures\NewJoin.raw => C:\Users\Admin\Pictures\NewJoin.raw.c52b64	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 13125 IoCs

Processes:

rundll32.exe

description	ioc	process
File opened for modification	C:\Program Files\WindowsApps\Microsoft.3DBuilder_13.0.10349.0_x64__8wekyb3d8bbwe\Assets\TextureBitmaps\brmarble.jpg	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_3.14.1181.0_x64__8wekyb3d8bbwe\Assets\Awards\common\Board_Yet_.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_3.14.1181.0_x64__8wekyb3d8bbwe\Assets\Themes\Classic\mask\13d.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_3.14.1181.0_x64__8wekyb3d8bbwe\Assets\Themes\Beach\mask\13h.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.WindowsSoundRecorder_10.1702.301.0_neutral_split.scale-200_8wekyb3d8bbwe\Assets\VoiceRecorderAppList.contrast-black_scale-200.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1612.10312.0_x64__8wekyb3d8bbwe\Assets\InsiderHubAppList.targetsize-32_altform-unplated_contrast-white.png	rundll32.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\locale\be\LC_MESSAGES\vlc.mo	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\core\dev\nls\fr-ma\ui-strings.js	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1612.10312.0_x64__8wekyb3d8bbwe\Assets\InsiderHubAppList.targetsize-256_contrast-black.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\contrast-white\HxA-GoogleCloudCache-Dark.scale-100.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\contrast-white\LinkedInboxLargeTile.scale-200.png	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\reviews\images\sat_logo.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.OneConnect_2.1701.277.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\contrast-white\OneConnectSplashScreen.scale-100.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_17.7668.58071.0_x64__8wekyb3d8bbwe\images\11891_40x40x32.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.16112.11621.0_x64__8wekyb3d8bbwe\Assets\AppList.targetsize-60_altform-unplated.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_17.7668.58071.0_x64__8wekyb3d8bbwe\images\7989_20x20x32.png	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\lib\visualvm\profiler\modules\locale\org-netbeans-lib-profiler_ja.jar	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.10252.0_x64__8wekyb3d8bbwe\Assets\AppPackageLargeTile.scale-200.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Wallet_1.0.16328.0_x64__8wekyb3d8bbwe\AppxMetadata\CodeIntegrity.cat	rundll32.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\fss\js\nls\cs-cz\ui-strings.js	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxApp_25.25.13009.0_x64__8wekyb3d8bbwe\Assets\GamesXboxHubAppList.targetsize-16_altform-unplated_contrast-white.png	rundll32.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\uss-search\js\nls\it-it\C52B64-Readme.txt	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1702.333.0_x64__8wekyb3d8bbwe\Assets\StopwatchLargeTile.contrast-white_scale-200.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1612.10312.0_x64__8wekyb3d8bbwe\Assets\InsiderHubAppList.targetsize-96_altform-unplated_contrast-black.png	rundll32.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Resource\TypeSupport\Unicode\Mappings\win\C52B64-Readme.txt	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_3.14.1181.0_x64__8wekyb3d8bbwe\Assets\Awards\common\Jack_Of_All_Trades_.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_3.14.1181.0_x64__8wekyb3d8bbwe\Assets\Themes\icon_preview_big.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_17.7668.58071.0_x64__8wekyb3d8bbwe\animations\OneNoteFRE_CreateNotes_RTL_Phone.mp4	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.StorePurchaseApp_1.0.45.0_x64__8wekyb3d8bbwe\Assets\Square150x150Logo.scale-200.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsSoundRecorder_10.1702.301.0_x64__8wekyb3d8bbwe\Assets\VoiceRecorderSplashScreen.contrast-white_scale-100.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_11.8.204.0_x64__kzf8qxf38zg5c\SkypeApp\Designs\Flags\large\mr_60x42.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\contrast-black\HxA-Yahoo-Light.scale-125.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1611.10393.0_neutral_split.scale-100_8wekyb3d8bbwe\Assets\SecondaryTiles\Place\contrast-black\WideTile.scale-100.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\6416_36x36x32.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\FileAttachmentPlaceholder.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\contrast-black\OutlookMailSmallTile.scale-150.png	rundll32.exe
File created	C:\Program Files\Microsoft Office\root\Office16\AugLoop\C52B64-Readme.txt	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsSoundRecorder_10.1702.301.0_x64__8wekyb3d8bbwe\Assets\VoiceRecorderAppList.targetsize-36_altform-unplated.png	rundll32.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\GRPHFLT\JPEGIM32.FLT	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.10252.0_x64__8wekyb3d8bbwe\Assets\256x256.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.3DBuilder_13.0.10349.0_x64__8wekyb3d8bbwe\Assets\TextureBitmaps\pitissue.jpg	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MSPaint_1.1702.28017.0_x64__8wekyb3d8bbwe\Assets\Images\Stickers\Thumbnails\Sticker_Icon_Eyebrow.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_11.8.204.0_x64__kzf8qxf38zg5c\SkypeApp\Assets\SkypeAppList.scale-200.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsStore_11701.1001.87.0_x64__8wekyb3d8bbwe\MS.Entertainment.Common\Resources\Fonts\SegMVR2.ttf	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxApp_25.25.13009.0_x64__8wekyb3d8bbwe\Assets\GamesXboxHubBadgeLogo.scale-100.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1611.10393.0_x64__8wekyb3d8bbwe\Assets\AppTiles\MapsAppList.targetsize-16.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_11.8.204.0_x64__kzf8qxf38zg5c\SkypeApp\Designs\Flags\large\lk_60x42.png	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\jre\lib\calendars.properties	rundll32.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\THEMES16\SONORA\THMBNAIL.PNG	rundll32.exe
File opened for modification	C:\Program Files\7-Zip\Lang\fy.txt	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_17.7668.58071.0_x64__8wekyb3d8bbwe\images\5601_20x20x32.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneVideo_10.16112.11601.0_x64__8wekyb3d8bbwe\Assets\contrast-white\AppList.targetsize-16_contrast-white.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1702.333.0_x64__8wekyb3d8bbwe\Assets\AlarmsMedTile.contrast-black_scale-200.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_11.8.204.0_x64__kzf8qxf38zg5c\SkypeApp\Designs\Flags\large\to_60x42.png	rundll32.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\my-recent-files\js\nls\ca-es\C52B64-Readme.txt	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7906.42257.0_x64__8wekyb3d8bbwe\images\9724_20x20x32.png	rundll32.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\WebResources\Resource0\static\js\plugins\createpdfupsell-app\js\nls\fr-fr\C52B64-Readme.txt	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Getstarted_4.5.6.0_x64__8wekyb3d8bbwe\Assets\GetStartedAppList.targetsize-24_contrast-white.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\DeletedAllUserPackages\Microsoft.WindowsMaps_5.1611.10393.0_neutral_split.scale-125_8wekyb3d8bbwe\Assets\SecondaryTiles\Home\MedTile.scale-125.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.OneConnect_2.1701.277.0_x64__8wekyb3d8bbwe\Assets\OneConnectAppList.targetsize-32.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.1702.312.0_x64__8wekyb3d8bbwe\Assets\CalculatorAppList.targetsize-30_altform-fullcolor.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1702.333.0_x64__8wekyb3d8bbwe\Assets\WorldClockWideTile.contrast-white_scale-200.png	rundll32.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1611.10393.0_x64__8wekyb3d8bbwe\Assets\Images\PrintAndShare\Glyph_0xea22.png	rundll32.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\lua\http\dialogs\stream_window.html	rundll32.exe

Suspicious behavior: EnumeratesProcesses 52 IoCs

Processes:

rundll32.exe

pid	process
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

rundll32.exe

description pid process

Token: SeDebugPrivilege 1232 rundll32.exe
Token: SeImpersonatePrivilege 1232 rundll32.exe

description	pid	process
Token: SeDebugPrivilege	1232	rundll32.exe
Token: SeImpersonatePrivilege	1232	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 640 wrote to memory of 1232	640	rundll32.exe	rundll32.exe
PID 640 wrote to memory of 1232	640	rundll32.exe	rundll32.exe
PID 640 wrote to memory of 1232	640	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e3e75e15fd7f6a8233e33c8a8e127cee36706025451644cf8618a0876fd0e95f.bin.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:640

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e3e75e15fd7f6a8233e33c8a8e127cee36706025451644cf8618a0876fd0e95f.bin.dll,#1
2⤵
- Modifies extensions of user files
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1232

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

memory/1232-0-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads