Analysis Overview
SHA256
3be341602597015165b89f6db84d564b7946f04494153beb49c26a33558700f8
Threat Level: Known bad
The file 3be341602597015165b89f6db84d564b7946f04494153beb49c26a33558700f8 was found to be: Known bad.
Malicious Activity Summary
Vidar
Djvu Ransomware
Detected Djvu ransomware
Downloads MZ/PE file
Executes dropped EXE
Modifies file permissions
Reads user/profile data of web browsers
Loads dropped DLL
Checks computer location settings
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
Accesses 2FA software files, possible credential harvesting
Suspicious use of SetThreadContext
Program crash
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-11-29 11:52
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-11-29 11:52
Reported
2022-11-29 11:55
Platform
win10v2004-20220812-en
Max time kernel
151s
Max time network
171s
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\dc926d78-1880-47c7-85bf-5ad08e71dec7\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\dc926d78-1880-47c7-85bf-5ad08e71dec7\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\dc926d78-1880-47c7-85bf-5ad08e71dec7\build3.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\3be341602597015165b89f6db84d564b7946f04494153beb49c26a33558700f8.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\3be341602597015165b89f6db84d564b7946f04494153beb49c26a33558700f8.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\dc926d78-1880-47c7-85bf-5ad08e71dec7\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\dc926d78-1880-47c7-85bf-5ad08e71dec7\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\\6453128f-c613-4f0a-b515-0f9e99aaa82d\\3be341602597015165b89f6db84d564b7946f04494153beb49c26a33558700f8.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\3be341602597015165b89f6db84d564b7946f04494153beb49c26a33558700f8.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 |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2696 set thread context of 4088 | N/A | C:\Users\Admin\AppData\Local\Temp\3be341602597015165b89f6db84d564b7946f04494153beb49c26a33558700f8.exe | C:\Users\Admin\AppData\Local\Temp\3be341602597015165b89f6db84d564b7946f04494153beb49c26a33558700f8.exe |
| PID 5052 set thread context of 424 | N/A | C:\Users\Admin\AppData\Local\Temp\3be341602597015165b89f6db84d564b7946f04494153beb49c26a33558700f8.exe | C:\Users\Admin\AppData\Local\Temp\3be341602597015165b89f6db84d564b7946f04494153beb49c26a33558700f8.exe |
| PID 4444 set thread context of 4692 | N/A | C:\Users\Admin\AppData\Local\dc926d78-1880-47c7-85bf-5ad08e71dec7\build2.exe | C:\Users\Admin\AppData\Local\dc926d78-1880-47c7-85bf-5ad08e71dec7\build2.exe |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\dc926d78-1880-47c7-85bf-5ad08e71dec7\build2.exe |
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\dc926d78-1880-47c7-85bf-5ad08e71dec7\build2.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\dc926d78-1880-47c7-85bf-5ad08e71dec7\build2.exe | N/A |
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\3be341602597015165b89f6db84d564b7946f04494153beb49c26a33558700f8.exe
"C:\Users\Admin\AppData\Local\Temp\3be341602597015165b89f6db84d564b7946f04494153beb49c26a33558700f8.exe"
C:\Users\Admin\AppData\Local\Temp\3be341602597015165b89f6db84d564b7946f04494153beb49c26a33558700f8.exe
"C:\Users\Admin\AppData\Local\Temp\3be341602597015165b89f6db84d564b7946f04494153beb49c26a33558700f8.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\6453128f-c613-4f0a-b515-0f9e99aaa82d" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\3be341602597015165b89f6db84d564b7946f04494153beb49c26a33558700f8.exe
"C:\Users\Admin\AppData\Local\Temp\3be341602597015165b89f6db84d564b7946f04494153beb49c26a33558700f8.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\3be341602597015165b89f6db84d564b7946f04494153beb49c26a33558700f8.exe
"C:\Users\Admin\AppData\Local\Temp\3be341602597015165b89f6db84d564b7946f04494153beb49c26a33558700f8.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\dc926d78-1880-47c7-85bf-5ad08e71dec7\build2.exe
"C:\Users\Admin\AppData\Local\dc926d78-1880-47c7-85bf-5ad08e71dec7\build2.exe"
C:\Users\Admin\AppData\Local\dc926d78-1880-47c7-85bf-5ad08e71dec7\build2.exe
"C:\Users\Admin\AppData\Local\dc926d78-1880-47c7-85bf-5ad08e71dec7\build2.exe"
C:\Users\Admin\AppData\Local\dc926d78-1880-47c7-85bf-5ad08e71dec7\build3.exe
"C:\Users\Admin\AppData\Local\dc926d78-1880-47c7-85bf-5ad08e71dec7\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\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4692 -ip 4692
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4692 -s 1936
Network
| Country | Destination | Domain | Proto |
| N/A | 72.21.81.240:80 | tcp | |
| N/A | 20.224.254.73:443 | 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 | 209.197.3.8:80 | tcp | |
| N/A | 209.197.3.8:80 | tcp | |
| N/A | 40.77.2.164:443 | tcp | |
| N/A | 209.197.3.8:80 | tcp | |
| N/A | 209.197.3.8:80 | tcp | |
| N/A | 8.8.8.8:53 | fresherlights.com | udp |
| N/A | 8.8.8.8:53 | uaery.top | udp |
| N/A | 58.235.189.192:80 | uaery.top | tcp |
| N/A | 200.46.66.71:80 | fresherlights.com | tcp |
| N/A | 200.46.66.71:80 | 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 | 95.217.31.208:80 | tcp | |
| N/A | 8.8.8.8:53 | 15.89.54.20.in-addr.arpa | udp |
| N/A | 109.102.255.230:80 | fresherlights.com | tcp |
| N/A | 109.102.255.230:80 | fresherlights.com | tcp |
| N/A | 8.8.8.8:53 | steamcommunity.com | udp |
| N/A | 104.74.224.162:443 | steamcommunity.com | tcp |
| N/A | 104.80.225.205:443 | tcp | |
| N/A | 95.217.29.31:80 | 95.217.29.31 | tcp |
| N/A | 8.8.8.8:53 | 2.8.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.0.4.0.c.0.0.3.0.1.3.0.6.2.ip6.arpa | udp |
Files
memory/4088-132-0x0000000000000000-mapping.dmp
memory/4088-133-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2696-135-0x0000000002109000-0x000000000219B000-memory.dmp
memory/4088-134-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2696-136-0x00000000021A0000-0x00000000022BB000-memory.dmp
memory/4088-137-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4088-138-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4840-139-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\6453128f-c613-4f0a-b515-0f9e99aaa82d\3be341602597015165b89f6db84d564b7946f04494153beb49c26a33558700f8.exe
| MD5 | 61b98d561011263318f5f9a3ba4f101a |
| SHA1 | f4735c23a90acd9f4fa71c0c1944ffb9f1cbf02c |
| SHA256 | 3be341602597015165b89f6db84d564b7946f04494153beb49c26a33558700f8 |
| SHA512 | 0aab0026ea6eedea30d0eb3ab5ce44304107d1b4f18ecdeea5ee23c242485d823941f0e62475f68793f79d1843a9995eed3e7869ed69c3e3a0c4530e68e7dce2 |
memory/5052-141-0x0000000000000000-mapping.dmp
memory/4088-142-0x0000000000400000-0x0000000000537000-memory.dmp
memory/424-143-0x0000000000000000-mapping.dmp
memory/5052-146-0x0000000002129000-0x00000000021BB000-memory.dmp
memory/424-147-0x0000000000400000-0x0000000000537000-memory.dmp
memory/424-145-0x0000000000400000-0x0000000000537000-memory.dmp
memory/424-148-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4444-149-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\dc926d78-1880-47c7-85bf-5ad08e71dec7\build2.exe
| MD5 | 03ddc9dc7312d33ad1c5f6ed2d167645 |
| SHA1 | e75de38aee3b0beb5cc91334ecbd8a876c8351a6 |
| SHA256 | 60724da01de35adee6cb34317cd2947fbcb791a8381386d79072857a19a58708 |
| SHA512 | 9a23eb681563719a6ad9202038a307e842b9a60c16aec2f01ce422feca11ac8d6e1d0e9a30e110e17bec4421121643ac87f075eae8bf127dca2213f7a2c6f1aa |
C:\Users\Admin\AppData\Local\dc926d78-1880-47c7-85bf-5ad08e71dec7\build2.exe
| MD5 | 03ddc9dc7312d33ad1c5f6ed2d167645 |
| SHA1 | e75de38aee3b0beb5cc91334ecbd8a876c8351a6 |
| SHA256 | 60724da01de35adee6cb34317cd2947fbcb791a8381386d79072857a19a58708 |
| SHA512 | 9a23eb681563719a6ad9202038a307e842b9a60c16aec2f01ce422feca11ac8d6e1d0e9a30e110e17bec4421121643ac87f075eae8bf127dca2213f7a2c6f1aa |
memory/4692-152-0x0000000000000000-mapping.dmp
memory/4692-153-0x0000000000400000-0x000000000045F000-memory.dmp
C:\Users\Admin\AppData\Local\dc926d78-1880-47c7-85bf-5ad08e71dec7\build2.exe
| MD5 | 03ddc9dc7312d33ad1c5f6ed2d167645 |
| SHA1 | e75de38aee3b0beb5cc91334ecbd8a876c8351a6 |
| SHA256 | 60724da01de35adee6cb34317cd2947fbcb791a8381386d79072857a19a58708 |
| SHA512 | 9a23eb681563719a6ad9202038a307e842b9a60c16aec2f01ce422feca11ac8d6e1d0e9a30e110e17bec4421121643ac87f075eae8bf127dca2213f7a2c6f1aa |
memory/4692-155-0x0000000000400000-0x000000000045F000-memory.dmp
memory/4444-156-0x00000000006AD000-0x00000000006D9000-memory.dmp
memory/4444-158-0x00000000022A0000-0x00000000022EB000-memory.dmp
memory/4692-157-0x0000000000400000-0x000000000045F000-memory.dmp
memory/4692-159-0x0000000000400000-0x000000000045F000-memory.dmp
memory/4692-160-0x0000000000400000-0x000000000045F000-memory.dmp
memory/4372-161-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\dc926d78-1880-47c7-85bf-5ad08e71dec7\build3.exe
| MD5 | 9ead10c08e72ae41921191f8db39bc16 |
| SHA1 | abe3bce01cd34afc88e2c838173f8c2bd0090ae1 |
| SHA256 | 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0 |
| SHA512 | aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a |
C:\Users\Admin\AppData\Local\dc926d78-1880-47c7-85bf-5ad08e71dec7\build3.exe
| MD5 | 9ead10c08e72ae41921191f8db39bc16 |
| SHA1 | abe3bce01cd34afc88e2c838173f8c2bd0090ae1 |
| SHA256 | 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0 |
| SHA512 | aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a |
memory/4692-164-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/2408-182-0x0000000000000000-mapping.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/4692-185-0x0000000000400000-0x000000000045F000-memory.dmp