Analysis Overview
SHA256
6f7e06e66763c1dbe8e4d242e3d3f80dafc0f02aa482a7a4f4addb429ce957cc
Threat Level: Known bad
The file 6f7e06e66763c1dbe8e4d242e3d3f80dafc0f02aa482a7a4f4addb429ce957cc was found to be: Known bad.
Malicious Activity Summary
Djvu Ransomware
Vidar
Detected Djvu ransomware
Vidar Stealer
Executes dropped EXE
Downloads MZ/PE file
Checks computer location settings
Reads user/profile data of web browsers
Modifies file permissions
Loads dropped DLL
Accesses cryptocurrency files/wallets, possible credential harvesting
Accesses 2FA software files, possible credential harvesting
Adds Run key to start application
Checks installed software on the system
Looks up external IP address via web service
Suspicious use of SetThreadContext
Enumerates physical storage devices
Checks processor information in registry
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-04-24 16:15
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-04-24 16:15
Reported
2022-04-24 16:17
Platform
win10v2004-20220414-en
Max time kernel
141s
Max time network
144s
Command Line
Signatures
Detected Djvu ransomware
| Description | Indicator | Process | Target |
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Djvu Ransomware
Vidar
Vidar Stealer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Downloads MZ/PE file
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\9ee9c081-7598-430f-94be-e76e52c764c2\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\9ee9c081-7598-430f-94be-e76e52c764c2\build2.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\6f7e06e66763c1dbe8e4d242e3d3f80dafc0f02aa482a7a4f4addb429ce957cc.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\6f7e06e66763c1dbe8e4d242e3d3f80dafc0f02aa482a7a4f4addb429ce957cc.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\9ee9c081-7598-430f-94be-e76e52c764c2\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\9ee9c081-7598-430f-94be-e76e52c764c2\build2.exe | N/A |
Modifies file permissions
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
Reads user/profile data of web browsers
Accesses 2FA software files, possible credential harvesting
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\3508869e-fee3-4dfc-a48b-0a37cd36f193\\6f7e06e66763c1dbe8e4d242e3d3f80dafc0f02aa482a7a4f4addb429ce957cc.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\6f7e06e66763c1dbe8e4d242e3d3f80dafc0f02aa482a7a4f4addb429ce957cc.exe | N/A |
Checks installed software on the system
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | api.2ip.ua | N/A | N/A |
| N/A | api.2ip.ua | N/A | N/A |
| N/A | api.2ip.ua | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3888 set thread context of 3852 | N/A | C:\Users\Admin\AppData\Local\Temp\6f7e06e66763c1dbe8e4d242e3d3f80dafc0f02aa482a7a4f4addb429ce957cc.exe | C:\Users\Admin\AppData\Local\Temp\6f7e06e66763c1dbe8e4d242e3d3f80dafc0f02aa482a7a4f4addb429ce957cc.exe |
| PID 4568 set thread context of 728 | N/A | C:\Users\Admin\AppData\Local\Temp\6f7e06e66763c1dbe8e4d242e3d3f80dafc0f02aa482a7a4f4addb429ce957cc.exe | C:\Users\Admin\AppData\Local\Temp\6f7e06e66763c1dbe8e4d242e3d3f80dafc0f02aa482a7a4f4addb429ce957cc.exe |
| PID 1508 set thread context of 3936 | N/A | C:\Users\Admin\AppData\Local\9ee9c081-7598-430f-94be-e76e52c764c2\build2.exe | C:\Users\Admin\AppData\Local\9ee9c081-7598-430f-94be-e76e52c764c2\build2.exe |
Enumerates physical storage devices
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\9ee9c081-7598-430f-94be-e76e52c764c2\build2.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\9ee9c081-7598-430f-94be-e76e52c764c2\build2.exe | N/A |
Modifies system certificate store
| Description | Indicator | Process | Target |
| Set value (data) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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 | C:\Users\Admin\AppData\Local\Temp\6f7e06e66763c1dbe8e4d242e3d3f80dafc0f02aa482a7a4f4addb429ce957cc.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349 | C:\Users\Admin\AppData\Local\Temp\6f7e06e66763c1dbe8e4d242e3d3f80dafc0f02aa482a7a4f4addb429ce957cc.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\6f7e06e66763c1dbe8e4d242e3d3f80dafc0f02aa482a7a4f4addb429ce957cc.exe
"C:\Users\Admin\AppData\Local\Temp\6f7e06e66763c1dbe8e4d242e3d3f80dafc0f02aa482a7a4f4addb429ce957cc.exe"
C:\Users\Admin\AppData\Local\Temp\6f7e06e66763c1dbe8e4d242e3d3f80dafc0f02aa482a7a4f4addb429ce957cc.exe
"C:\Users\Admin\AppData\Local\Temp\6f7e06e66763c1dbe8e4d242e3d3f80dafc0f02aa482a7a4f4addb429ce957cc.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\3508869e-fee3-4dfc-a48b-0a37cd36f193" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\6f7e06e66763c1dbe8e4d242e3d3f80dafc0f02aa482a7a4f4addb429ce957cc.exe
"C:\Users\Admin\AppData\Local\Temp\6f7e06e66763c1dbe8e4d242e3d3f80dafc0f02aa482a7a4f4addb429ce957cc.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\6f7e06e66763c1dbe8e4d242e3d3f80dafc0f02aa482a7a4f4addb429ce957cc.exe
"C:\Users\Admin\AppData\Local\Temp\6f7e06e66763c1dbe8e4d242e3d3f80dafc0f02aa482a7a4f4addb429ce957cc.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\9ee9c081-7598-430f-94be-e76e52c764c2\build2.exe
"C:\Users\Admin\AppData\Local\9ee9c081-7598-430f-94be-e76e52c764c2\build2.exe"
C:\Users\Admin\AppData\Local\9ee9c081-7598-430f-94be-e76e52c764c2\build2.exe
"C:\Users\Admin\AppData\Local\9ee9c081-7598-430f-94be-e76e52c764c2\build2.exe"
Network
| Country | Destination | Domain | Proto |
| US | 93.184.220.29:80 | tcp | |
| US | 93.184.220.29:80 | tcp | |
| US | 8.8.8.8:53 | api.2ip.ua | udp |
| DE | 162.0.217.254:443 | api.2ip.ua | tcp |
| DE | 162.0.217.254:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | zerit.top | udp |
| US | 8.8.8.8:53 | fuyt.org | udp |
| KR | 210.92.250.133:80 | fuyt.org | tcp |
| PA | 190.219.109.25:80 | zerit.top | tcp |
| KR | 210.92.250.133:80 | fuyt.org | tcp |
| US | 8.8.8.8:53 | zerit.top | udp |
| US | 8.8.8.8:53 | t.me | udp |
| NL | 149.154.167.99:443 | t.me | tcp |
| DE | 116.202.1.195:80 | 116.202.1.195 | tcp |
| NL | 52.178.17.2:443 | tcp | |
| NL | 104.110.191.140:80 | tcp | |
| NL | 104.110.191.140:80 | tcp | |
| NL | 104.110.191.140:80 | tcp | |
| DE | 116.202.1.195:80 | 116.202.1.195 | tcp |
Files
memory/3852-130-0x0000000000000000-mapping.dmp
memory/3852-131-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3888-133-0x00000000009F3000-0x0000000000A85000-memory.dmp
memory/3852-132-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3888-134-0x0000000002300000-0x000000000241B000-memory.dmp
memory/3852-135-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3852-136-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2164-137-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\3508869e-fee3-4dfc-a48b-0a37cd36f193\6f7e06e66763c1dbe8e4d242e3d3f80dafc0f02aa482a7a4f4addb429ce957cc.exe
| MD5 | 6f49bbcec34b928bdd96b001ac43ebca |
| SHA1 | 4aadea2345bf74c16ae4e777c571e48927c7aa22 |
| SHA256 | 6f7e06e66763c1dbe8e4d242e3d3f80dafc0f02aa482a7a4f4addb429ce957cc |
| SHA512 | 551aaea7dcf2735c6e23c174b33ebaad289ee8d936d198d7ef34fa257022f9d3309a42d9a34ba746370a9467500534d9fdad077dced33153a5f8cffb8c746006 |
memory/4568-139-0x0000000000000000-mapping.dmp
memory/728-140-0x0000000000000000-mapping.dmp
memory/4568-143-0x00000000009FB000-0x0000000000A8D000-memory.dmp
memory/728-142-0x0000000000400000-0x0000000000537000-memory.dmp
memory/728-144-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
| MD5 | ad8e032271f02af2a955ce10661cc3a8 |
| SHA1 | 967d1bd99bea34c3110cc75c0c0d8b8565eae9f9 |
| SHA256 | d5081bf75d530e9336a6da0f9142bc10f4d06368c365cf0e33f7c99b0f643ce8 |
| SHA512 | bc69dfb03284cf1b8d172ff55938f238b928a0c7846306d8232ab697f54c771a9acf8b0e04a85e149da87ea8cfd9395605d0d95afc30eae1793e91399aa7eef7 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
| MD5 | 25c7a5d042181fef1f0439f9fe2b2fd9 |
| SHA1 | 4841b72fb49c3841aae93ae0079c34b05a4de226 |
| SHA256 | c48aa3c5a1fe071490195bbf0ca3707b03cd7ba5b404fa3df9f47e70bc43eab3 |
| SHA512 | dc4ca5820161078bb8abc0d4e32ea979c90bbc3e5598759877cbbfa860084871d341ce2ab7524031f3dda6e14b7bd11210003e203ec46b59a167cbbe97d1d335 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
| MD5 | 196b268242d03f45cf381f4bdb029720 |
| SHA1 | ee42e00f11acb2eda0345a6f27d3b9b65f8d25f1 |
| SHA256 | e3303652cfe648729488873caf3fa6fe7149fc5fcaf20565d807d00c150ce0be |
| SHA512 | 484139c5b45f72803db7e96955ca57beeb0cd30b393e074646eb6a3c63219a5bf9fad6ca67eb89b9e4e40094c6345ce1bd1b710c95dfa5d5aae4ba97b9e92ca9 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
| MD5 | d9c694c2d95c6812aa0be903de46da96 |
| SHA1 | df1a733a9c6c27997c798ae4c5715cabe1ffa5e4 |
| SHA256 | f6f85bc0d1770803a206fbfb83c4cb888b3a24b494feac38baa3ea764cda37c0 |
| SHA512 | 97a2eddf197aa74d1d05241008ead092f836b561bc1ad1d731d91db23d6dcce7a65d3dc1609384a3ad3fd5c858bae6c3a4361588b5a965ebf233f14410864793 |
memory/728-149-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1508-150-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\9ee9c081-7598-430f-94be-e76e52c764c2\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
C:\Users\Admin\AppData\Local\9ee9c081-7598-430f-94be-e76e52c764c2\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
memory/1508-153-0x0000000000628000-0x0000000000652000-memory.dmp
memory/3936-154-0x0000000000000000-mapping.dmp
memory/3936-155-0x0000000000400000-0x000000000044C000-memory.dmp
C:\Users\Admin\AppData\Local\9ee9c081-7598-430f-94be-e76e52c764c2\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
memory/3936-157-0x0000000000400000-0x000000000044C000-memory.dmp
memory/1508-158-0x0000000000628000-0x0000000000652000-memory.dmp
memory/1508-159-0x00000000020B0000-0x00000000020F9000-memory.dmp
memory/3936-160-0x0000000000400000-0x000000000044C000-memory.dmp
memory/3936-161-0x0000000000400000-0x000000000044C000-memory.dmp
C:\ProgramData\nss3.dll
| MD5 | bfac4e3c5908856ba17d41edcd455a51 |
| SHA1 | 8eec7e888767aa9e4cca8ff246eb2aacb9170428 |
| SHA256 | e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78 |
| SHA512 | 2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66 |
C:\ProgramData\mozglue.dll
| MD5 | 8f73c08a9660691143661bf7332c3c27 |
| SHA1 | 37fa65dd737c50fda710fdbde89e51374d0c204a |
| SHA256 | 3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd |
| SHA512 | 0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89 |