Analysis Overview
SHA256
14951ed065169a3d2f43f348b904a1e52959169dc77d684f7a8b540a6284d99b
Threat Level: Known bad
The file 14951ed065169a3d2f43f348b904a1e52959169dc77d684f7a8b540a6284d99b was found to be: Known bad.
Malicious Activity Summary
Detected Djvu ransomware
Vidar
Djvu Ransomware
Downloads MZ/PE file
Executes dropped EXE
Loads dropped DLL
Checks computer location settings
Reads user/profile data of web browsers
Modifies file permissions
Accesses 2FA software files, possible credential harvesting
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Looks up external IP address via web service
Adds Run key to start application
Suspicious use of SetThreadContext
Enumerates physical storage devices
Checks processor information in registry
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Delays execution with timeout.exe
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2023-02-16 20:50
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2023-02-16 20:50
Reported
2023-02-16 20:53
Platform
win10v2004-20221111-en
Max time kernel
113s
Max time network
153s
Command Line
Signatures
Detected Djvu ransomware
| Description | Indicator | Process | Target |
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Djvu Ransomware
Vidar
Downloads MZ/PE file
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\5b977b15-4d7e-4605-9845-bdafe049b416\build2.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\14951ed065169a3d2f43f348b904a1e52959169dc77d684f7a8b540a6284d99b.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\14951ed065169a3d2f43f348b904a1e52959169dc77d684f7a8b540a6284d99b.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\5b977b15-4d7e-4605-9845-bdafe049b416\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\5b977b15-4d7e-4605-9845-bdafe049b416\build3.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\5b977b15-4d7e-4605-9845-bdafe049b416\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\5b977b15-4d7e-4605-9845-bdafe049b416\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\5b977b15-4d7e-4605-9845-bdafe049b416\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-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\8f3c44f9-4f3e-48e7-8d71-8155555225d5\\14951ed065169a3d2f43f348b904a1e52959169dc77d684f7a8b540a6284d99b.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\14951ed065169a3d2f43f348b904a1e52959169dc77d684f7a8b540a6284d99b.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 |
| N/A | api.2ip.ua | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4180 set thread context of 2832 | N/A | C:\Users\Admin\AppData\Local\Temp\14951ed065169a3d2f43f348b904a1e52959169dc77d684f7a8b540a6284d99b.exe | C:\Users\Admin\AppData\Local\Temp\14951ed065169a3d2f43f348b904a1e52959169dc77d684f7a8b540a6284d99b.exe |
| PID 2356 set thread context of 4340 | N/A | C:\Users\Admin\AppData\Local\Temp\14951ed065169a3d2f43f348b904a1e52959169dc77d684f7a8b540a6284d99b.exe | C:\Users\Admin\AppData\Local\Temp\14951ed065169a3d2f43f348b904a1e52959169dc77d684f7a8b540a6284d99b.exe |
| PID 3580 set thread context of 2092 | N/A | C:\Users\Admin\AppData\Local\5b977b15-4d7e-4605-9845-bdafe049b416\build2.exe | C:\Users\Admin\AppData\Local\5b977b15-4d7e-4605-9845-bdafe049b416\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\5b977b15-4d7e-4605-9845-bdafe049b416\build2.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\5b977b15-4d7e-4605-9845-bdafe049b416\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\14951ed065169a3d2f43f348b904a1e52959169dc77d684f7a8b540a6284d99b.exe
"C:\Users\Admin\AppData\Local\Temp\14951ed065169a3d2f43f348b904a1e52959169dc77d684f7a8b540a6284d99b.exe"
C:\Users\Admin\AppData\Local\Temp\14951ed065169a3d2f43f348b904a1e52959169dc77d684f7a8b540a6284d99b.exe
"C:\Users\Admin\AppData\Local\Temp\14951ed065169a3d2f43f348b904a1e52959169dc77d684f7a8b540a6284d99b.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\8f3c44f9-4f3e-48e7-8d71-8155555225d5" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\14951ed065169a3d2f43f348b904a1e52959169dc77d684f7a8b540a6284d99b.exe
"C:\Users\Admin\AppData\Local\Temp\14951ed065169a3d2f43f348b904a1e52959169dc77d684f7a8b540a6284d99b.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\14951ed065169a3d2f43f348b904a1e52959169dc77d684f7a8b540a6284d99b.exe
"C:\Users\Admin\AppData\Local\Temp\14951ed065169a3d2f43f348b904a1e52959169dc77d684f7a8b540a6284d99b.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\5b977b15-4d7e-4605-9845-bdafe049b416\build2.exe
"C:\Users\Admin\AppData\Local\5b977b15-4d7e-4605-9845-bdafe049b416\build2.exe"
C:\Users\Admin\AppData\Local\5b977b15-4d7e-4605-9845-bdafe049b416\build3.exe
"C:\Users\Admin\AppData\Local\5b977b15-4d7e-4605-9845-bdafe049b416\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\5b977b15-4d7e-4605-9845-bdafe049b416\build2.exe
"C:\Users\Admin\AppData\Local\5b977b15-4d7e-4605-9845-bdafe049b416\build2.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\5b977b15-4d7e-4605-9845-bdafe049b416\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 |
| NL | 87.248.202.1:80 | tcp | |
| US | 8.8.8.8:53 | api.2ip.ua | udp |
| NL | 162.0.217.254:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | crl.comodoca.com | udp |
| US | 172.64.155.188:80 | crl.comodoca.com | tcp |
| NL | 178.79.208.1:80 | tcp | |
| US | 104.18.32.68:80 | crl.comodoca.com | tcp |
| US | 209.197.3.8:80 | tcp | |
| US | 8.8.8.8:53 | api.2ip.ua | udp |
| NL | 162.0.217.254:443 | api.2ip.ua | tcp |
| US | 20.189.173.12:443 | tcp | |
| US | 8.8.8.8:53 | uaery.top | udp |
| US | 8.8.8.8:53 | bihsy.com | udp |
| KR | 211.53.230.67:80 | uaery.top | tcp |
| KR | 211.59.14.90:80 | bihsy.com | tcp |
| KR | 211.59.14.90:80 | bihsy.com | tcp |
| US | 8.8.8.8:53 | t.me | udp |
| NL | 149.154.167.99:443 | t.me | tcp |
| DE | 168.119.59.211:80 | 168.119.59.211 | tcp |
| US | 8.8.8.8:53 | 97.97.242.52.in-addr.arpa | udp |
| NL | 87.248.202.1:80 | tcp | |
| NL | 104.80.225.205:443 | tcp |
Files
memory/2832-132-0x0000000000000000-mapping.dmp
memory/2832-133-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4180-135-0x00000000023C0000-0x0000000002452000-memory.dmp
memory/2832-134-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4180-136-0x0000000002470000-0x000000000258B000-memory.dmp
memory/2832-137-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2832-138-0x0000000000400000-0x0000000000537000-memory.dmp
memory/256-139-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\8f3c44f9-4f3e-48e7-8d71-8155555225d5\14951ed065169a3d2f43f348b904a1e52959169dc77d684f7a8b540a6284d99b.exe
| MD5 | d5190e11d75e0ac0da16034f4a8437ab |
| SHA1 | 7e38785af663a78871ba4688704cb5f8872734e4 |
| SHA256 | 14951ed065169a3d2f43f348b904a1e52959169dc77d684f7a8b540a6284d99b |
| SHA512 | 070df77961b3284a545a7f9fea4feab5ba4e8ce2be492d5cebff315b185304a56568eab2cf37f9569e6343468fb0bd0acaa7d3aec12bc46000128bb0633eb13f |
memory/2356-141-0x0000000000000000-mapping.dmp
memory/2832-142-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4340-143-0x0000000000000000-mapping.dmp
memory/4340-145-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2356-146-0x0000000002376000-0x0000000002408000-memory.dmp
memory/4340-147-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4340-148-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
| MD5 | ce1ae884a7db7fdd4732c857b5f1e5f5 |
| SHA1 | f5f48b69ecab02de8fc038c74128eb2660266f09 |
| SHA256 | a87f81284355e18a6c7495a7bfd9a46909b3f817aee83876bc1bcea72d23563d |
| SHA512 | 7e478fdf7fb1e09b31e981e97df8cf48ac8e5e2403fa465564aeae179488eda660ed9397d2a2e1e847bc0ca7323380eebf9ee0370843d15f6a2daddc38170207 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
| MD5 | e825419f5d91cbb7dd2c1407c2ae4c08 |
| SHA1 | daca95b9bffaff1aacb09d09292a41c5e98f0d12 |
| SHA256 | 01a7d3b0ef49c660185536f53cfa2744c7784aef0981df4fd03ae06770b25376 |
| SHA512 | e4c0b3dea86821de18a10f43dac1263cf917075b620cd4f6ca22331dec27ca0c89b57145e33de8f502e09c1bcfaa400d27cb601f315b1a8b4c851f15064fd514 |
C:\Users\Admin\AppData\Local\5b977b15-4d7e-4605-9845-bdafe049b416\build2.exe
| MD5 | 4c9fdfbf316f37dbcc7314e5641f9a9a |
| SHA1 | 7fa01df0e5420f9e5b69486550460e839fd0f3a3 |
| SHA256 | e661e53f429cd22e30ca6fb368f3e011e76264892f4e718c75cb3636f4f2e611 |
| SHA512 | b22c60d27ed5457677645a2b8669cd1958cc18a021e19dcf1d1a3a88ed63cd4eb749b1fe8798f651dcc5595d019ceb3cb38eae7a07ab73098eee502dbee5c32b |
memory/3580-151-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\5b977b15-4d7e-4605-9845-bdafe049b416\build2.exe
| MD5 | 4c9fdfbf316f37dbcc7314e5641f9a9a |
| SHA1 | 7fa01df0e5420f9e5b69486550460e839fd0f3a3 |
| SHA256 | e661e53f429cd22e30ca6fb368f3e011e76264892f4e718c75cb3636f4f2e611 |
| SHA512 | b22c60d27ed5457677645a2b8669cd1958cc18a021e19dcf1d1a3a88ed63cd4eb749b1fe8798f651dcc5595d019ceb3cb38eae7a07ab73098eee502dbee5c32b |
memory/3968-154-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\5b977b15-4d7e-4605-9845-bdafe049b416\build3.exe
| MD5 | 9ead10c08e72ae41921191f8db39bc16 |
| SHA1 | abe3bce01cd34afc88e2c838173f8c2bd0090ae1 |
| SHA256 | 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0 |
| SHA512 | aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a |
C:\Users\Admin\AppData\Local\5b977b15-4d7e-4605-9845-bdafe049b416\build3.exe
| MD5 | 9ead10c08e72ae41921191f8db39bc16 |
| SHA1 | abe3bce01cd34afc88e2c838173f8c2bd0090ae1 |
| SHA256 | 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0 |
| SHA512 | aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a |
memory/460-157-0x0000000000000000-mapping.dmp
memory/2092-158-0x0000000000000000-mapping.dmp
memory/2092-159-0x0000000000400000-0x0000000000472000-memory.dmp
memory/2092-161-0x0000000000400000-0x0000000000472000-memory.dmp
C:\Users\Admin\AppData\Local\5b977b15-4d7e-4605-9845-bdafe049b416\build2.exe
| MD5 | 4c9fdfbf316f37dbcc7314e5641f9a9a |
| SHA1 | 7fa01df0e5420f9e5b69486550460e839fd0f3a3 |
| SHA256 | e661e53f429cd22e30ca6fb368f3e011e76264892f4e718c75cb3636f4f2e611 |
| SHA512 | b22c60d27ed5457677645a2b8669cd1958cc18a021e19dcf1d1a3a88ed63cd4eb749b1fe8798f651dcc5595d019ceb3cb38eae7a07ab73098eee502dbee5c32b |
memory/3580-162-0x0000000000608000-0x000000000063C000-memory.dmp
memory/3580-164-0x0000000002220000-0x000000000227E000-memory.dmp
memory/2092-163-0x0000000000400000-0x0000000000472000-memory.dmp
memory/2092-165-0x0000000000400000-0x0000000000472000-memory.dmp
memory/2092-166-0x0000000050AD0000-0x0000000050BC3000-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/4340-186-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4168-187-0x0000000000000000-mapping.dmp
memory/2092-188-0x0000000000400000-0x0000000000472000-memory.dmp
memory/4404-189-0x0000000000000000-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/2168-192-0x0000000000000000-mapping.dmp