Analysis Overview
SHA256
5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b
Threat Level: Known bad
The file 5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b was found to be: Known bad.
Malicious Activity Summary
Djvu Ransomware
Vidar
Detected Djvu ransomware
Downloads MZ/PE file
Executes dropped EXE
Loads dropped DLL
Modifies file permissions
Reads user/profile data of web browsers
Checks computer location settings
Accesses 2FA software files, possible credential harvesting
Adds Run key to start application
Looks up external IP address via web service
Checks installed software on the system
Accesses cryptocurrency files/wallets, possible credential harvesting
Suspicious use of SetThreadContext
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Checks processor information in registry
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Delays execution with timeout.exe
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-11-30 07:14
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-11-30 07:14
Reported
2022-11-30 07:17
Platform
win10v2004-20220901-en
Max time kernel
61s
Max time network
136s
Command Line
Signatures
Detected Djvu ransomware
| 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 |
| 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 |
Djvu Ransomware
Vidar
Downloads MZ/PE file
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\build3.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\build2.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\Temp\5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b.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\5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b.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\8c111fb0-bbba-4602-ac08-27ac2714ee76\build2.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\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\\8b2b2190-ea74-4759-8a88-cce32e163e5e\\5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b.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 3704 set thread context of 4720 | N/A | C:\Users\Admin\AppData\Local\Temp\5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b.exe | C:\Users\Admin\AppData\Local\Temp\5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b.exe |
| PID 4504 set thread context of 1648 | N/A | C:\Users\Admin\AppData\Local\Temp\5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b.exe | C:\Users\Admin\AppData\Local\Temp\5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b.exe |
| PID 2656 set thread context of 2152 | N/A | C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\build2.exe | C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\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\8c111fb0-bbba-4602-ac08-27ac2714ee76\build2.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\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\5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b.exe
"C:\Users\Admin\AppData\Local\Temp\5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b.exe"
C:\Users\Admin\AppData\Local\Temp\5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b.exe
"C:\Users\Admin\AppData\Local\Temp\5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\8b2b2190-ea74-4759-8a88-cce32e163e5e" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b.exe
"C:\Users\Admin\AppData\Local\Temp\5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b.exe
"C:\Users\Admin\AppData\Local\Temp\5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\build2.exe
"C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\build2.exe"
C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\build3.exe
"C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\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\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\build2.exe
"C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\build2.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\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 | 93.184.220.29:80 | 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 | 8.8.8.8:53 | crl.usertrust.com | udp |
| N/A | 104.18.32.68:80 | crl.usertrust.com | 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 | 37.34.248.24:80 | fresherlights.com | tcp |
| N/A | 211.59.14.90:80 | uaery.top | tcp |
| N/A | 37.34.248.24:80 | fresherlights.com | tcp |
| N/A | 20.189.173.15:443 | 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 | 2.18.109.224:443 | tcp |
Files
memory/3704-132-0x0000000002252000-0x00000000022E3000-memory.dmp
memory/3704-133-0x00000000022F0000-0x000000000240B000-memory.dmp
memory/4720-134-0x0000000000000000-mapping.dmp
memory/4720-135-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4720-136-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4720-137-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4720-138-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4600-139-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\8b2b2190-ea74-4759-8a88-cce32e163e5e\5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b.exe
| MD5 | 3c601e9c952ef6b658965ef478acdc56 |
| SHA1 | fb778e852092d689799ee8d3d63c0b8d94d5455f |
| SHA256 | 5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b |
| SHA512 | 3a0c0ca7932576dd2f2c7686f883feea5b5399e5561c368260de3c0b56c4391a17642d0f3669651dad5345457b792c8ec7f5dbe9753a9dbaf99d8874faa37d4b |
memory/4504-141-0x0000000000000000-mapping.dmp
memory/4720-142-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4504-146-0x0000000002144000-0x00000000021D5000-memory.dmp
memory/1648-147-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1648-145-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1648-143-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3538626A1FCCCA43C7E18F220BDD9B02
| MD5 | a7fe1142072784c5f703873724e1059c |
| SHA1 | abb8a342e4e4e3a5309b961907f1129fa56fc605 |
| SHA256 | 2a0a9d12d67911534cdaff9e63ead4910baba478177bbc5181ca0a83bdf9f9ca |
| SHA512 | 3e55ae5fbbd51629d806d7a02e06b169bae6d7090e2cf9aa1bd5df2fb503ae9cf75d1e9cba1d27ee75855a858a1be56dd3eba323abebe7bcb5277ed04862dfde |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3538626A1FCCCA43C7E18F220BDD9B02
| MD5 | 8d23aa0e9844ab4323cbfc0d21de4678 |
| SHA1 | 91404bba809b964733ce571543531d132dc99ef7 |
| SHA256 | 3aac4a9b3d8ce49ded3bbe182d07c3f72b03e78573acf20fc641e86319b3753c |
| SHA512 | e8eb19fd2d20ec478bf92aee58441fcdfbd75598f2c3ac194f1cc04747f10159d275f92a3249295ce1530d6758faa9f479c7a2d3ed8334946348fc5bf3377ff9 |
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 | 6ce07e608f25f0e9402c7129ffe6f4d1 |
| SHA1 | 515b67a51f47473cae454362495f6b8e9a8d9b37 |
| SHA256 | 5fe437ef929bff05a09ca3df1b069bd3f437c361eb92083332657cc7cfe43171 |
| SHA512 | 89bae992a6bd384791c98540449030c58dcc2d832222927d85710f42fc828e62433d3bde72909b29d69ae1c8e11188b42b2d7b46f1fb4b8ad04fa863dd811c58 |
memory/1648-152-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\build2.exe
| MD5 | b9212ded69fae1fa1fb5d6db46a9fb76 |
| SHA1 | 58face4245646b1cd379ee49f03a701eab1642be |
| SHA256 | 7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f |
| SHA512 | 09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342 |
C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\build2.exe
| MD5 | b9212ded69fae1fa1fb5d6db46a9fb76 |
| SHA1 | 58face4245646b1cd379ee49f03a701eab1642be |
| SHA256 | 7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f |
| SHA512 | 09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342 |
memory/2656-153-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\build3.exe
| MD5 | 9ead10c08e72ae41921191f8db39bc16 |
| SHA1 | abe3bce01cd34afc88e2c838173f8c2bd0090ae1 |
| SHA256 | 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0 |
| SHA512 | aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a |
memory/1916-156-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\build3.exe
| MD5 | 9ead10c08e72ae41921191f8db39bc16 |
| SHA1 | abe3bce01cd34afc88e2c838173f8c2bd0090ae1 |
| SHA256 | 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0 |
| SHA512 | aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a |
memory/2188-159-0x0000000000000000-mapping.dmp
memory/2152-160-0x0000000000000000-mapping.dmp
memory/2152-161-0x0000000000400000-0x000000000045F000-memory.dmp
memory/2152-163-0x0000000000400000-0x000000000045F000-memory.dmp
memory/2656-165-0x00000000006BD000-0x00000000006E9000-memory.dmp
memory/2656-166-0x00000000004F0000-0x000000000053B000-memory.dmp
memory/2152-164-0x0000000000400000-0x000000000045F000-memory.dmp
C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\build2.exe
| MD5 | b9212ded69fae1fa1fb5d6db46a9fb76 |
| SHA1 | 58face4245646b1cd379ee49f03a701eab1642be |
| SHA256 | 7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f |
| SHA512 | 09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342 |
memory/2152-167-0x0000000000400000-0x000000000045F000-memory.dmp
memory/2152-168-0x0000000061E00000-0x0000000061EF3000-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/1100-188-0x0000000000000000-mapping.dmp
memory/2152-189-0x0000000000400000-0x000000000045F000-memory.dmp
memory/2492-190-0x0000000000000000-mapping.dmp
memory/1648-191-0x0000000000400000-0x0000000000537000-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/2292-194-0x0000000000000000-mapping.dmp