Analysis Overview
SHA256
83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339
Threat Level: Known bad
The file 83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339 was found to be: Known bad.
Malicious Activity Summary
Djvu Ransomware
Vidar
Detected 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
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Accesses 2FA software files, possible credential harvesting
Adds Run key to start application
Looks up external IP address via web service
Suspicious use of SetThreadContext
Enumerates physical storage devices
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Creates scheduled task(s)
Checks processor information in registry
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-10-19 23:37
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-10-19 23:37
Reported
2022-10-19 23:39
Platform
win10v2004-20220812-en
Max time kernel
107s
Max time network
141s
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\cee88c56-c947-472e-a94c-f0fc0ac960ad\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\build2.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\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-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\6c7dac92-b846-43a7-95ce-74c0c8b07961\\83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339.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 4980 set thread context of 1584 | N/A | C:\Users\Admin\AppData\Local\Temp\83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339.exe | C:\Users\Admin\AppData\Local\Temp\83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339.exe |
| PID 1920 set thread context of 4128 | N/A | C:\Users\Admin\AppData\Local\Temp\83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339.exe | C:\Users\Admin\AppData\Local\Temp\83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339.exe |
| PID 1704 set thread context of 1184 | N/A | C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\build2.exe | C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\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\cee88c56-c947-472e-a94c-f0fc0ac960ad\build2.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\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 |
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339.exe
"C:\Users\Admin\AppData\Local\Temp\83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339.exe"
C:\Users\Admin\AppData\Local\Temp\83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339.exe
"C:\Users\Admin\AppData\Local\Temp\83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\6c7dac92-b846-43a7-95ce-74c0c8b07961" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339.exe
"C:\Users\Admin\AppData\Local\Temp\83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339.exe
"C:\Users\Admin\AppData\Local\Temp\83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\build2.exe
"C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\build2.exe"
C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\build2.exe
"C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\build2.exe"
C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\build3.exe
"C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\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:\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"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\build2.exe" & exit
C:\Windows\SysWOW64\timeout.exe
timeout /t 6
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 |
| US | 93.184.220.29:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | 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 |
| BR | 138.36.3.134:80 | rgyui.top | tcp |
| UZ | 195.158.3.162:80 | winnlinne.com | tcp |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| UZ | 195.158.3.162:80 | winnlinne.com | tcp |
| US | 8.8.8.8:53 | t.me | udp |
| NL | 149.154.167.99:443 | t.me | tcp |
| DE | 78.46.160.87:80 | 78.46.160.87 | tcp |
| US | 8.8.8.8:53 | tm.baiaveloz.com | udp |
| DE | 207.180.253.128:80 | tm.baiaveloz.com | tcp |
Files
memory/4980-132-0x000000000078B000-0x000000000081D000-memory.dmp
memory/4980-133-0x0000000002320000-0x000000000243B000-memory.dmp
memory/1584-134-0x0000000000000000-mapping.dmp
memory/1584-135-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1584-136-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4980-137-0x000000000078B000-0x000000000081D000-memory.dmp
memory/1584-138-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1584-139-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2420-140-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\6c7dac92-b846-43a7-95ce-74c0c8b07961\83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339.exe
| MD5 | 0f98265d37abd75eb929d95554fdcde5 |
| SHA1 | 19c351546115137e9fe052aa0ffc0a498fd5d3c2 |
| SHA256 | 83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339 |
| SHA512 | 5dc6ac1149e93555af84e4e951793de359cff48b81b556e183120f02353b9dbd9527332735882250a42ee19c3ef9302de7a89b98612977267326c57e200d1445 |
memory/1584-142-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1920-143-0x0000000000000000-mapping.dmp
memory/1584-144-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4128-145-0x0000000000000000-mapping.dmp
memory/1920-148-0x0000000000623000-0x00000000006B5000-memory.dmp
memory/4128-147-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4128-149-0x0000000000400000-0x0000000000537000-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 | 270068767bbfc494c74f295e0c1fe015 |
| SHA1 | b1aea3bbc5b51e4d9e6006dbf2b0848eb208003e |
| SHA256 | c88ed9da39b4a5d116b65426224cd94e5310e271cc961505e7ec3b4a4cf4a347 |
| SHA512 | 3a47842b423327c3ea4fd06fc6ea2785764a2b61af4167d646994e7a02d08fb08a55485144664c5c9a09f2dc014ff1e073598cc32de0ea0e7bcdf86e6726c599 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
| MD5 | 006c98bc42ac1d15f0ec70e3488783c5 |
| SHA1 | a8c8302826468c903b511e206d6d058e2c3acdaa |
| SHA256 | e24883740fbed2781e4df4e5387cd95c3345ec9944edeeb36babd2c10135fa00 |
| SHA512 | e0caea17f99a18483e0195c5311942c195ef42532f1868bfb5c64b3f6cb72cc0fc58414176a9bfc66452e11d17c2058eafb483a41890f502ec76dc3a6807f2f4 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
| MD5 | c3e253b3179becd3e062ca431786dc04 |
| SHA1 | ea68fa68fb6f792dd8b0df03815374884c1ef2a3 |
| SHA256 | 564e2be8e225926d82e9d946ce26588f74223aec9c5909b0b919af3d1a060c74 |
| SHA512 | 3486cb5442255687058792af082d5f31572e862cbdcf0bbe25ab145bacad13727fa96b471ea2a930c715b3c05a9241a3a50a3123377e341d57e973a7431800c3 |
memory/4128-154-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1704-155-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\build2.exe
| MD5 | e4e90e1dda4b51d199d449fa936db902 |
| SHA1 | 70de6b213f872ba782ba11cad5a5d1294ca9e741 |
| SHA256 | 8ecc0426ea37a5c9e59d00b4fde1508175a950372ec3870965f1e527634b3419 |
| SHA512 | 3958e1c40d69d5439b5e85bdb5765bb38ec5bba24f38a8aafb9a53c167ebaffb5c202441613af3f2d968c9c902de35036f67d87f7777efeb4c66869a7fc3c4ed |
C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\build2.exe
| MD5 | e4e90e1dda4b51d199d449fa936db902 |
| SHA1 | 70de6b213f872ba782ba11cad5a5d1294ca9e741 |
| SHA256 | 8ecc0426ea37a5c9e59d00b4fde1508175a950372ec3870965f1e527634b3419 |
| SHA512 | 3958e1c40d69d5439b5e85bdb5765bb38ec5bba24f38a8aafb9a53c167ebaffb5c202441613af3f2d968c9c902de35036f67d87f7777efeb4c66869a7fc3c4ed |
memory/1184-158-0x0000000000000000-mapping.dmp
memory/1184-159-0x0000000000400000-0x0000000000458000-memory.dmp
C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\build2.exe
| MD5 | e4e90e1dda4b51d199d449fa936db902 |
| SHA1 | 70de6b213f872ba782ba11cad5a5d1294ca9e741 |
| SHA256 | 8ecc0426ea37a5c9e59d00b4fde1508175a950372ec3870965f1e527634b3419 |
| SHA512 | 3958e1c40d69d5439b5e85bdb5765bb38ec5bba24f38a8aafb9a53c167ebaffb5c202441613af3f2d968c9c902de35036f67d87f7777efeb4c66869a7fc3c4ed |
memory/1184-163-0x0000000000400000-0x0000000000458000-memory.dmp
memory/4852-164-0x0000000000000000-mapping.dmp
memory/1704-165-0x0000000000860000-0x00000000008A4000-memory.dmp
C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\build3.exe
| MD5 | 9ead10c08e72ae41921191f8db39bc16 |
| SHA1 | abe3bce01cd34afc88e2c838173f8c2bd0090ae1 |
| SHA256 | 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0 |
| SHA512 | aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a |
C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\build3.exe
| MD5 | 9ead10c08e72ae41921191f8db39bc16 |
| SHA1 | abe3bce01cd34afc88e2c838173f8c2bd0090ae1 |
| SHA256 | 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0 |
| SHA512 | aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a |
memory/1184-161-0x0000000000400000-0x0000000000458000-memory.dmp
memory/1704-162-0x00000000008C2000-0x00000000008EA000-memory.dmp
memory/1268-168-0x0000000000000000-mapping.dmp
memory/1184-169-0x0000000000400000-0x0000000000458000-memory.dmp
C:\ProgramData\sqlite3.dll
| MD5 | 1f44d4d3087c2b202cf9c90ee9d04b0f |
| SHA1 | 106a3ebc9e39ab6ddb3ff987efb6527c956f192d |
| SHA256 | 4841020c8bd06b08fde6e44cbe2e2ab33439e1c8368e936ec5b00dc0584f7260 |
| SHA512 | b614c72a3c1ce681ebffa628e29aa50275cc80ca9267380960c5198ea4d0a3f2df6cfb7275491d220bad72f14fc94e6656501e9a061d102fb11e00cfda2beb45 |
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/4128-173-0x0000000000400000-0x0000000000537000-memory.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/4888-176-0x0000000000000000-mapping.dmp
memory/1184-177-0x0000000000400000-0x0000000000458000-memory.dmp
memory/5116-178-0x0000000000000000-mapping.dmp
memory/1184-179-0x0000000000400000-0x0000000000458000-memory.dmp
memory/2500-180-0x0000000000000000-mapping.dmp