Analysis Overview
SHA256
b00762436204cef3ae8921e5015974409ce54dd8c7f84652daacac0e258a2ff9
Threat Level: Known bad
The file b00762436204cef3ae8921e5015974409ce54dd8c7f84652daacac0e258a2ff9 was found to be: Known bad.
Malicious Activity Summary
Detected Djvu ransomware
Djvu Ransomware
Vidar
Executes dropped EXE
Downloads MZ/PE file
Loads dropped DLL
Reads user/profile data of web browsers
Checks computer location settings
Modifies file permissions
Looks up external IP address via web service
Adds Run key to start application
Accesses 2FA software files, possible credential harvesting
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Suspicious use of SetThreadContext
Enumerates physical storage devices
Checks processor information in registry
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-11-30 10:32
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-11-30 10:32
Reported
2022-11-30 10:35
Platform
win10v2004-20220901-en
Max time kernel
73s
Max time network
139s
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\26a769be-d554-4389-8e0f-1103271c978c\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\26a769be-d554-4389-8e0f-1103271c978c\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\26a769be-d554-4389-8e0f-1103271c978c\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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\26a769be-d554-4389-8e0f-1103271c978c\build2.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\b00762436204cef3ae8921e5015974409ce54dd8c7f84652daacac0e258a2ff9.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\b00762436204cef3ae8921e5015974409ce54dd8c7f84652daacac0e258a2ff9.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\26a769be-d554-4389-8e0f-1103271c978c\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\26a769be-d554-4389-8e0f-1103271c978c\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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\3feccf1f-03b0-4b55-9a6d-4aa291a89ea7\\b00762436204cef3ae8921e5015974409ce54dd8c7f84652daacac0e258a2ff9.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\b00762436204cef3ae8921e5015974409ce54dd8c7f84652daacac0e258a2ff9.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 4032 set thread context of 3368 | N/A | C:\Users\Admin\AppData\Local\Temp\b00762436204cef3ae8921e5015974409ce54dd8c7f84652daacac0e258a2ff9.exe | C:\Users\Admin\AppData\Local\Temp\b00762436204cef3ae8921e5015974409ce54dd8c7f84652daacac0e258a2ff9.exe |
| PID 4228 set thread context of 2404 | N/A | C:\Users\Admin\AppData\Local\Temp\b00762436204cef3ae8921e5015974409ce54dd8c7f84652daacac0e258a2ff9.exe | C:\Users\Admin\AppData\Local\Temp\b00762436204cef3ae8921e5015974409ce54dd8c7f84652daacac0e258a2ff9.exe |
| PID 2228 set thread context of 3548 | N/A | C:\Users\Admin\AppData\Local\26a769be-d554-4389-8e0f-1103271c978c\build2.exe | C:\Users\Admin\AppData\Local\26a769be-d554-4389-8e0f-1103271c978c\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\26a769be-d554-4389-8e0f-1103271c978c\build2.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\26a769be-d554-4389-8e0f-1103271c978c\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\b00762436204cef3ae8921e5015974409ce54dd8c7f84652daacac0e258a2ff9.exe
"C:\Users\Admin\AppData\Local\Temp\b00762436204cef3ae8921e5015974409ce54dd8c7f84652daacac0e258a2ff9.exe"
C:\Users\Admin\AppData\Local\Temp\b00762436204cef3ae8921e5015974409ce54dd8c7f84652daacac0e258a2ff9.exe
"C:\Users\Admin\AppData\Local\Temp\b00762436204cef3ae8921e5015974409ce54dd8c7f84652daacac0e258a2ff9.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\3feccf1f-03b0-4b55-9a6d-4aa291a89ea7" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\b00762436204cef3ae8921e5015974409ce54dd8c7f84652daacac0e258a2ff9.exe
"C:\Users\Admin\AppData\Local\Temp\b00762436204cef3ae8921e5015974409ce54dd8c7f84652daacac0e258a2ff9.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\b00762436204cef3ae8921e5015974409ce54dd8c7f84652daacac0e258a2ff9.exe
"C:\Users\Admin\AppData\Local\Temp\b00762436204cef3ae8921e5015974409ce54dd8c7f84652daacac0e258a2ff9.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\26a769be-d554-4389-8e0f-1103271c978c\build2.exe
"C:\Users\Admin\AppData\Local\26a769be-d554-4389-8e0f-1103271c978c\build2.exe"
C:\Users\Admin\AppData\Local\26a769be-d554-4389-8e0f-1103271c978c\build2.exe
"C:\Users\Admin\AppData\Local\26a769be-d554-4389-8e0f-1103271c978c\build2.exe"
C:\Users\Admin\AppData\Local\26a769be-d554-4389-8e0f-1103271c978c\build3.exe
"C:\Users\Admin\AppData\Local\26a769be-d554-4389-8e0f-1103271c978c\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" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\26a769be-d554-4389-8e0f-1103271c978c\build2.exe" & exit
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 |
| N/A | 93.184.221.240:80 | tcp | |
| N/A | 8.8.8.8:53 | api.2ip.ua | udp |
| N/A | 162.0.217.254:443 | api.2ip.ua | tcp |
| N/A | 162.0.217.254:443 | api.2ip.ua | tcp |
| N/A | 8.8.8.8:53 | uaery.top | udp |
| N/A | 8.8.8.8:53 | fresherlights.com | udp |
| N/A | 211.53.230.67:80 | uaery.top | tcp |
| N/A | 175.126.109.15:80 | fresherlights.com | tcp |
| N/A | 175.126.109.15:80 | fresherlights.com | tcp |
| N/A | 8.8.8.8:53 | t.me | udp |
| N/A | 149.154.167.99:443 | t.me | tcp |
| N/A | 88.198.94.71:80 | 88.198.94.71 | tcp |
| N/A | 20.50.80.209:443 | tcp | |
| N/A | 2.18.109.224:443 | tcp | |
| N/A | 93.184.221.240:80 | tcp | |
| N/A | 93.184.221.240:80 | tcp | |
| N/A | 93.184.221.240:80 | tcp |
Files
memory/4032-132-0x0000000000787000-0x0000000000818000-memory.dmp
memory/4032-133-0x00000000023A0000-0x00000000024BB000-memory.dmp
memory/3368-134-0x0000000000000000-mapping.dmp
memory/3368-135-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3368-136-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3368-137-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3368-138-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4752-139-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\3feccf1f-03b0-4b55-9a6d-4aa291a89ea7\b00762436204cef3ae8921e5015974409ce54dd8c7f84652daacac0e258a2ff9.exe
| MD5 | 03ef7270d445163f6cc4771f6ecb54e9 |
| SHA1 | 598e7905bd91013f6efa5975a7903de096d115e5 |
| SHA256 | b00762436204cef3ae8921e5015974409ce54dd8c7f84652daacac0e258a2ff9 |
| SHA512 | dd18e883890ed6b3a3e1b9eff79a4e43f6a25ba4573000e8c8debff24560e822f5a560cae20a74301c231c0884c539fdd78948cbd6a7c2453bbf196e2069d544 |
memory/4228-141-0x0000000000000000-mapping.dmp
memory/3368-142-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2404-143-0x0000000000000000-mapping.dmp
memory/4228-146-0x00000000020FC000-0x000000000218D000-memory.dmp
memory/2404-145-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2404-147-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
| MD5 | 916c512d221c683beeea9d5cb311b0b0 |
| SHA1 | bf0db4b1c4566275b629efb095b6ff8857b5748e |
| SHA256 | 64a36c1637d0a111152002a2c0385b0df9dd81b616b3f2073fbbe3f2975aa4d8 |
| SHA512 | af32cffea722438e9b17b08062dc2e209edc5417418964ead0b392bd502e1a647a8456b2ee2ea59faf69f93d0c6ea6f15949b6c30924db7da65b91cb18e8dc6c |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
| MD5 | f02c2faedee01e1131cb6ec8457b13d0 |
| SHA1 | 506366b4fb0f6acddfa91c615f89a81e74244196 |
| SHA256 | ac2949a748f73b8bb5974bcef55159e74a3ea11419ccd73722ea5f82d819d2a1 |
| SHA512 | 6a4fcba01941e00697239066100eddfa3dae96e4f37ca1a0381d3ca57eac636e3f26e22c01a97031c8b60f48139d3ca89979116939bd8eaa569aa89c0ccafc6d |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
| MD5 | 76e7d5bf61b2e80d159f88aa9798ce91 |
| SHA1 | 32a46de50c9c02b068e39cf49b78c7e2d5ace20d |
| SHA256 | 280fd6ae3ad21323199759814c4dd82329eb8f9847ed1fa2be145e83b4c88bf3 |
| SHA512 | 5efd8c64ac40ae006d2ce4509eb9e5f1448fb1156e914d303e8bc4dcfe1d94c57c7eae216b362877e7b644876656cc9e5c4cebfc905bab3f8b09cb1a051d69c4 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
| MD5 | 618916b2b91118a62c0e0c5cc32730bb |
| SHA1 | 77f153e643d426d85835245689bdca387467ea24 |
| SHA256 | 4110efe6822f4d5712677f586cf3437a287f99d02d0f0349e7ac780c2a78a833 |
| SHA512 | a0bf49a66cb83625222fe07118de7872cb63ad141df7e68f511a0c6bafa80b5dbfb812181a91479baefc296b8824403528f1de434088a12d70f904dae995d761 |
memory/2404-152-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2228-153-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\26a769be-d554-4389-8e0f-1103271c978c\build2.exe
| MD5 | b9212ded69fae1fa1fb5d6db46a9fb76 |
| SHA1 | 58face4245646b1cd379ee49f03a701eab1642be |
| SHA256 | 7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f |
| SHA512 | 09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342 |
C:\Users\Admin\AppData\Local\26a769be-d554-4389-8e0f-1103271c978c\build2.exe
| MD5 | b9212ded69fae1fa1fb5d6db46a9fb76 |
| SHA1 | 58face4245646b1cd379ee49f03a701eab1642be |
| SHA256 | 7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f |
| SHA512 | 09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342 |
memory/3548-156-0x0000000000000000-mapping.dmp
memory/3548-157-0x0000000000400000-0x000000000045F000-memory.dmp
C:\Users\Admin\AppData\Local\26a769be-d554-4389-8e0f-1103271c978c\build2.exe
| MD5 | b9212ded69fae1fa1fb5d6db46a9fb76 |
| SHA1 | 58face4245646b1cd379ee49f03a701eab1642be |
| SHA256 | 7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f |
| SHA512 | 09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342 |
memory/3548-159-0x0000000000400000-0x000000000045F000-memory.dmp
memory/2228-160-0x000000000076D000-0x0000000000799000-memory.dmp
memory/2228-162-0x00000000020F0000-0x000000000213B000-memory.dmp
memory/3548-161-0x0000000000400000-0x000000000045F000-memory.dmp
memory/3548-163-0x0000000000400000-0x000000000045F000-memory.dmp
C:\Users\Admin\AppData\Local\26a769be-d554-4389-8e0f-1103271c978c\build3.exe
| MD5 | 9ead10c08e72ae41921191f8db39bc16 |
| SHA1 | abe3bce01cd34afc88e2c838173f8c2bd0090ae1 |
| SHA256 | 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0 |
| SHA512 | aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a |
memory/556-164-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\26a769be-d554-4389-8e0f-1103271c978c\build3.exe
| MD5 | 9ead10c08e72ae41921191f8db39bc16 |
| SHA1 | abe3bce01cd34afc88e2c838173f8c2bd0090ae1 |
| SHA256 | 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0 |
| SHA512 | aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a |
memory/4648-167-0x0000000000000000-mapping.dmp
memory/3548-168-0x0000000061E00000-0x0000000061EF3000-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/868-188-0x0000000000000000-mapping.dmp
memory/3548-189-0x0000000000400000-0x000000000045F000-memory.dmp
memory/4504-190-0x0000000000000000-mapping.dmp
memory/2404-191-0x0000000000400000-0x0000000000537000-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/3908-194-0x0000000000000000-mapping.dmp