Analysis Overview
SHA256
2ab14447a835fc7692cbd0d6ab854b9001b25b5ad33e6e9cccce591165d5d474
Threat Level: Known bad
The file 2ab14447a835fc7692cbd0d6ab854b9001b25b5ad33e6e9cccce591165d5d474 was found to be: Known bad.
Malicious Activity Summary
Vidar
Detected Djvu ransomware
Djvu Ransomware
Executes dropped EXE
Downloads MZ/PE file
Checks computer location settings
Modifies file permissions
Reads user/profile data of web browsers
Loads dropped DLL
Checks installed software on the system
Adds Run key to start application
Looks up external IP address via web service
Accesses cryptocurrency files/wallets, possible credential harvesting
Accesses 2FA software files, possible credential harvesting
Suspicious use of SetThreadContext
Enumerates physical storage devices
Checks processor information in registry
Suspicious use of WriteProcessMemory
Delays execution with timeout.exe
Creates scheduled task(s)
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-10-19 02:52
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-10-19 02:52
Reported
2022-10-19 02:54
Platform
win10v2004-20220812-en
Max time kernel
147s
Max time network
150s
Command Line
Signatures
Detected Djvu ransomware
| Description | Indicator | Process | Target |
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Djvu Ransomware
Vidar
Downloads MZ/PE file
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\890f62ac-246a-4f51-b998-ee9a86b3574e\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\890f62ac-246a-4f51-b998-ee9a86b3574e\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\890f62ac-246a-4f51-b998-ee9a86b3574e\build3.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2ab14447a835fc7692cbd0d6ab854b9001b25b5ad33e6e9cccce591165d5d474.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2ab14447a835fc7692cbd0d6ab854b9001b25b5ad33e6e9cccce591165d5d474.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\890f62ac-246a-4f51-b998-ee9a86b3574e\build2.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\890f62ac-246a-4f51-b998-ee9a86b3574e\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\890f62ac-246a-4f51-b998-ee9a86b3574e\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-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\3c83eb69-77eb-4e77-8f1b-fc5cca1afd07\\2ab14447a835fc7692cbd0d6ab854b9001b25b5ad33e6e9cccce591165d5d474.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\2ab14447a835fc7692cbd0d6ab854b9001b25b5ad33e6e9cccce591165d5d474.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 4088 set thread context of 2536 | N/A | C:\Users\Admin\AppData\Local\Temp\2ab14447a835fc7692cbd0d6ab854b9001b25b5ad33e6e9cccce591165d5d474.exe | C:\Users\Admin\AppData\Local\Temp\2ab14447a835fc7692cbd0d6ab854b9001b25b5ad33e6e9cccce591165d5d474.exe |
| PID 4752 set thread context of 924 | N/A | C:\Users\Admin\AppData\Local\Temp\2ab14447a835fc7692cbd0d6ab854b9001b25b5ad33e6e9cccce591165d5d474.exe | C:\Users\Admin\AppData\Local\Temp\2ab14447a835fc7692cbd0d6ab854b9001b25b5ad33e6e9cccce591165d5d474.exe |
| PID 3396 set thread context of 4248 | N/A | C:\Users\Admin\AppData\Local\890f62ac-246a-4f51-b998-ee9a86b3574e\build2.exe | C:\Users\Admin\AppData\Local\890f62ac-246a-4f51-b998-ee9a86b3574e\build2.exe |
Enumerates physical storage devices
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\890f62ac-246a-4f51-b998-ee9a86b3574e\build2.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\890f62ac-246a-4f51-b998-ee9a86b3574e\build2.exe | N/A |
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\timeout.exe | N/A |
Kills process with taskkill
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\2ab14447a835fc7692cbd0d6ab854b9001b25b5ad33e6e9cccce591165d5d474.exe
"C:\Users\Admin\AppData\Local\Temp\2ab14447a835fc7692cbd0d6ab854b9001b25b5ad33e6e9cccce591165d5d474.exe"
C:\Users\Admin\AppData\Local\Temp\2ab14447a835fc7692cbd0d6ab854b9001b25b5ad33e6e9cccce591165d5d474.exe
"C:\Users\Admin\AppData\Local\Temp\2ab14447a835fc7692cbd0d6ab854b9001b25b5ad33e6e9cccce591165d5d474.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\3c83eb69-77eb-4e77-8f1b-fc5cca1afd07" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\2ab14447a835fc7692cbd0d6ab854b9001b25b5ad33e6e9cccce591165d5d474.exe
"C:\Users\Admin\AppData\Local\Temp\2ab14447a835fc7692cbd0d6ab854b9001b25b5ad33e6e9cccce591165d5d474.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\2ab14447a835fc7692cbd0d6ab854b9001b25b5ad33e6e9cccce591165d5d474.exe
"C:\Users\Admin\AppData\Local\Temp\2ab14447a835fc7692cbd0d6ab854b9001b25b5ad33e6e9cccce591165d5d474.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\890f62ac-246a-4f51-b998-ee9a86b3574e\build2.exe
"C:\Users\Admin\AppData\Local\890f62ac-246a-4f51-b998-ee9a86b3574e\build2.exe"
C:\Users\Admin\AppData\Local\890f62ac-246a-4f51-b998-ee9a86b3574e\build2.exe
"C:\Users\Admin\AppData\Local\890f62ac-246a-4f51-b998-ee9a86b3574e\build2.exe"
C:\Users\Admin\AppData\Local\890f62ac-246a-4f51-b998-ee9a86b3574e\build3.exe
"C:\Users\Admin\AppData\Local\890f62ac-246a-4f51-b998-ee9a86b3574e\build3.exe"
C:\Windows\SysWOW64\schtasks.exe
/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" 8=j/c taskkill /im build2.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\890f62ac-246a-4f51-b998-ee9a86b3574e\build2.exe" & del C:\PrograData\*.dll & exit
C:\Windows\SysWOW64\taskkill.exe
taskkill /im build2.exe /f
C:\Windows\SysWOW64\timeout.exe
timeout /t 6
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Windows\SysWOW64\schtasks.exe
/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | api.2ip.ua | udp |
| NL | 162.0.217.254:443 | api.2ip.ua | tcp |
| NL | 162.0.217.254:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | rgyui.top | udp |
| US | 8.8.8.8:53 | winnlinne.com | udp |
| EG | 41.41.255.235:80 | winnlinne.com | tcp |
| KR | 123.213.233.194:80 | winnlinne.com | tcp |
| KR | 123.213.233.194:80 | winnlinne.com | tcp |
| US | 8.8.8.8:53 | t.me | udp |
| NL | 149.154.167.99:443 | t.me | tcp |
| DE | 116.202.186.42:80 | 116.202.186.42 | tcp |
| NL | 95.101.78.82:80 | tcp | |
| US | 20.42.65.85:443 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp |
Files
memory/2536-133-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2536-132-0x0000000000000000-mapping.dmp
memory/4088-135-0x00000000020B4000-0x0000000002146000-memory.dmp
memory/2536-134-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2536-136-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4088-137-0x0000000002150000-0x000000000226B000-memory.dmp
memory/2536-138-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4772-139-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\3c83eb69-77eb-4e77-8f1b-fc5cca1afd07\2ab14447a835fc7692cbd0d6ab854b9001b25b5ad33e6e9cccce591165d5d474.exe
| MD5 | c2b2252d504a1f5ad3fe2ee72a20858d |
| SHA1 | 1e3557059026e112d732579510e5bb13a563cf9f |
| SHA256 | 2ab14447a835fc7692cbd0d6ab854b9001b25b5ad33e6e9cccce591165d5d474 |
| SHA512 | e2d389a2bcdaba40526c6010aaf5c3340a4d1f53e34a58edf5dc5aaf7271fc19da3548c27f254db3a363dd10adafaf136c6eda834e9c2115442a2247d1221a3e |
memory/4752-141-0x0000000000000000-mapping.dmp
memory/2536-142-0x0000000000400000-0x0000000000537000-memory.dmp
memory/924-143-0x0000000000000000-mapping.dmp
memory/4752-146-0x00000000020C5000-0x0000000002157000-memory.dmp
memory/924-145-0x0000000000400000-0x0000000000537000-memory.dmp
memory/924-147-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
| MD5 | 97ab7ffd65186e85f453dc7c02637528 |
| SHA1 | f22312a6a44613be85c0370878456a965f869a40 |
| SHA256 | 630df8e970cc3b1ad508db713dd8be52e0ac7a5826f3f264a266232f9a1c23ee |
| SHA512 | 37d90c98e72ad55b2cbb938541c81bac1aa9d2b8a7e19f0fbfaa365b49e7bef2d3199f03e46aa9fbf3055f3701d21860820c451065f7e425d39bf86ca606bfb0 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
| MD5 | aafd57027bf93c6379324f3ac98625e1 |
| SHA1 | d98ff2a54f8da9dc4763cf4547b6e6777ddcd0ad |
| SHA256 | 9b9a7e3be877bac1a704aa5e4c0942b9da150f4eff00bff6afe64f1bef126d36 |
| SHA512 | 4873eed31b273b53e70e7f10690d1cbaf2e3037c866975d5948fe82304a38c151bd2f5cfcb45a8a191e279aeb724dda3180e63cd3fb5f915beca835180208c51 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
| MD5 | 6c16c2e15919f500e8cbad79eb886e0b |
| SHA1 | 465d854a3f07df2d70d71760f452899819bd7913 |
| SHA256 | 7ef30620deeff43c88173e72351bb89ab09d70667cc3cc3faa332023c54a4b2a |
| SHA512 | 1ae3f721d281daf702349965dea8cc6341e205c98d31e6d00b76570bd1fa30cbc21f6024a249d8ffacff5519474f11b2854ab697fb989272ba3062c69a0cb645 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
| MD5 | 006c98bc42ac1d15f0ec70e3488783c5 |
| SHA1 | a8c8302826468c903b511e206d6d058e2c3acdaa |
| SHA256 | e24883740fbed2781e4df4e5387cd95c3345ec9944edeeb36babd2c10135fa00 |
| SHA512 | e0caea17f99a18483e0195c5311942c195ef42532f1868bfb5c64b3f6cb72cc0fc58414176a9bfc66452e11d17c2058eafb483a41890f502ec76dc3a6807f2f4 |
memory/924-152-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3396-153-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\890f62ac-246a-4f51-b998-ee9a86b3574e\build2.exe
| MD5 | 5fd8c38657bb9393bb4736c880675223 |
| SHA1 | f3a03b2e75cef22262f6677e3832b6ad9327905c |
| SHA256 | 2a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6 |
| SHA512 | 43c82f6db716792a770a3573a9d20cb69a2421ccc2bb875e57f4270d92c9289ee684deda19e3232c50f4675aaf86de173f73376a00f927a8d9847f60b8b732fe |
C:\Users\Admin\AppData\Local\890f62ac-246a-4f51-b998-ee9a86b3574e\build2.exe
| MD5 | 5fd8c38657bb9393bb4736c880675223 |
| SHA1 | f3a03b2e75cef22262f6677e3832b6ad9327905c |
| SHA256 | 2a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6 |
| SHA512 | 43c82f6db716792a770a3573a9d20cb69a2421ccc2bb875e57f4270d92c9289ee684deda19e3232c50f4675aaf86de173f73376a00f927a8d9847f60b8b732fe |
memory/4248-156-0x0000000000000000-mapping.dmp
memory/4248-157-0x0000000000400000-0x0000000000463000-memory.dmp
C:\Users\Admin\AppData\Local\890f62ac-246a-4f51-b998-ee9a86b3574e\build2.exe
| MD5 | 5fd8c38657bb9393bb4736c880675223 |
| SHA1 | f3a03b2e75cef22262f6677e3832b6ad9327905c |
| SHA256 | 2a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6 |
| SHA512 | 43c82f6db716792a770a3573a9d20cb69a2421ccc2bb875e57f4270d92c9289ee684deda19e3232c50f4675aaf86de173f73376a00f927a8d9847f60b8b732fe |
memory/4248-162-0x0000000000400000-0x0000000000463000-memory.dmp
memory/3396-161-0x0000000000740000-0x000000000078F000-memory.dmp
memory/3396-160-0x000000000082D000-0x0000000000859000-memory.dmp
memory/4248-163-0x0000000000400000-0x0000000000463000-memory.dmp
memory/3028-164-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\890f62ac-246a-4f51-b998-ee9a86b3574e\build3.exe
| MD5 | 9ead10c08e72ae41921191f8db39bc16 |
| SHA1 | abe3bce01cd34afc88e2c838173f8c2bd0090ae1 |
| SHA256 | 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0 |
| SHA512 | aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a |
C:\Users\Admin\AppData\Local\890f62ac-246a-4f51-b998-ee9a86b3574e\build3.exe
| MD5 | 9ead10c08e72ae41921191f8db39bc16 |
| SHA1 | abe3bce01cd34afc88e2c838173f8c2bd0090ae1 |
| SHA256 | 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0 |
| SHA512 | aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a |
memory/1480-167-0x0000000000000000-mapping.dmp
memory/4248-168-0x0000000061E00000-0x0000000061EF3000-memory.dmp
C:\ProgramData\nss3.dll
| MD5 | 1cc453cdf74f31e4d913ff9c10acdde2 |
| SHA1 | 6e85eae544d6e965f15fa5c39700fa7202f3aafe |
| SHA256 | ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5 |
| SHA512 | dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571 |
C:\ProgramData\mozglue.dll
| MD5 | c8fd9be83bc728cc04beffafc2907fe9 |
| SHA1 | 95ab9f701e0024cedfbd312bcfe4e726744c4f2e |
| SHA256 | ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a |
| SHA512 | fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040 |
memory/924-188-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4920-189-0x0000000000000000-mapping.dmp
memory/1948-190-0x0000000000000000-mapping.dmp
memory/4248-191-0x0000000000400000-0x0000000000463000-memory.dmp
memory/3936-192-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
| MD5 | 9ead10c08e72ae41921191f8db39bc16 |
| SHA1 | abe3bce01cd34afc88e2c838173f8c2bd0090ae1 |
| SHA256 | 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0 |
| SHA512 | aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a |
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
| MD5 | 9ead10c08e72ae41921191f8db39bc16 |
| SHA1 | abe3bce01cd34afc88e2c838173f8c2bd0090ae1 |
| SHA256 | 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0 |
| SHA512 | aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a |
memory/820-195-0x0000000000000000-mapping.dmp