Analysis Overview
SHA256
aaef58ede9edbfc0cbbdd3dc7abfa9ae0f977ed1b33af4f5d7665123187801d1
Threat Level: Known bad
The file aaef58ede9edbfc0cbbdd3dc7abfa9ae0f977ed1b33af4f5d7665123187801d1 was found to be: Known bad.
Malicious Activity Summary
Detected Djvu ransomware
Djvu Ransomware
Vidar
Downloads MZ/PE file
Executes dropped EXE
Modifies file permissions
Reads user/profile data of web browsers
Checks computer location settings
Loads dropped DLL
Checks installed software on the system
Looks up external IP address via web service
Accesses 2FA software files, possible credential harvesting
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Suspicious use of SetThreadContext
Enumerates physical storage devices
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Checks processor information in registry
Delays execution with timeout.exe
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-11-29 22:28
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-11-29 22:28
Reported
2022-11-29 22:31
Platform
win10v2004-20220901-en
Max time kernel
101s
Max time network
148s
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\1ea7e45e-6dca-4d87-8c07-23e9cb12092a\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\1ea7e45e-6dca-4d87-8c07-23e9cb12092a\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\1ea7e45e-6dca-4d87-8c07-23e9cb12092a\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\Temp\aaef58ede9edbfc0cbbdd3dc7abfa9ae0f977ed1b33af4f5d7665123187801d1.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\aaef58ede9edbfc0cbbdd3dc7abfa9ae0f977ed1b33af4f5d7665123187801d1.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\1ea7e45e-6dca-4d87-8c07-23e9cb12092a\build2.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\1ea7e45e-6dca-4d87-8c07-23e9cb12092a\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\1ea7e45e-6dca-4d87-8c07-23e9cb12092a\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\\8a8f48fa-76d9-4392-8683-87d883e080ab\\aaef58ede9edbfc0cbbdd3dc7abfa9ae0f977ed1b33af4f5d7665123187801d1.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\aaef58ede9edbfc0cbbdd3dc7abfa9ae0f977ed1b33af4f5d7665123187801d1.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 4708 set thread context of 4184 | N/A | C:\Users\Admin\AppData\Local\Temp\aaef58ede9edbfc0cbbdd3dc7abfa9ae0f977ed1b33af4f5d7665123187801d1.exe | C:\Users\Admin\AppData\Local\Temp\aaef58ede9edbfc0cbbdd3dc7abfa9ae0f977ed1b33af4f5d7665123187801d1.exe |
| PID 2168 set thread context of 3340 | N/A | C:\Users\Admin\AppData\Local\Temp\aaef58ede9edbfc0cbbdd3dc7abfa9ae0f977ed1b33af4f5d7665123187801d1.exe | C:\Users\Admin\AppData\Local\Temp\aaef58ede9edbfc0cbbdd3dc7abfa9ae0f977ed1b33af4f5d7665123187801d1.exe |
| PID 5052 set thread context of 4212 | N/A | C:\Users\Admin\AppData\Local\1ea7e45e-6dca-4d87-8c07-23e9cb12092a\build2.exe | C:\Users\Admin\AppData\Local\1ea7e45e-6dca-4d87-8c07-23e9cb12092a\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\1ea7e45e-6dca-4d87-8c07-23e9cb12092a\build2.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\1ea7e45e-6dca-4d87-8c07-23e9cb12092a\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\aaef58ede9edbfc0cbbdd3dc7abfa9ae0f977ed1b33af4f5d7665123187801d1.exe
"C:\Users\Admin\AppData\Local\Temp\aaef58ede9edbfc0cbbdd3dc7abfa9ae0f977ed1b33af4f5d7665123187801d1.exe"
C:\Users\Admin\AppData\Local\Temp\aaef58ede9edbfc0cbbdd3dc7abfa9ae0f977ed1b33af4f5d7665123187801d1.exe
"C:\Users\Admin\AppData\Local\Temp\aaef58ede9edbfc0cbbdd3dc7abfa9ae0f977ed1b33af4f5d7665123187801d1.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\8a8f48fa-76d9-4392-8683-87d883e080ab" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\aaef58ede9edbfc0cbbdd3dc7abfa9ae0f977ed1b33af4f5d7665123187801d1.exe
"C:\Users\Admin\AppData\Local\Temp\aaef58ede9edbfc0cbbdd3dc7abfa9ae0f977ed1b33af4f5d7665123187801d1.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\aaef58ede9edbfc0cbbdd3dc7abfa9ae0f977ed1b33af4f5d7665123187801d1.exe
"C:\Users\Admin\AppData\Local\Temp\aaef58ede9edbfc0cbbdd3dc7abfa9ae0f977ed1b33af4f5d7665123187801d1.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\1ea7e45e-6dca-4d87-8c07-23e9cb12092a\build2.exe
"C:\Users\Admin\AppData\Local\1ea7e45e-6dca-4d87-8c07-23e9cb12092a\build2.exe"
C:\Users\Admin\AppData\Local\1ea7e45e-6dca-4d87-8c07-23e9cb12092a\build2.exe
"C:\Users\Admin\AppData\Local\1ea7e45e-6dca-4d87-8c07-23e9cb12092a\build2.exe"
C:\Users\Admin\AppData\Local\1ea7e45e-6dca-4d87-8c07-23e9cb12092a\build3.exe
"C:\Users\Admin\AppData\Local\1ea7e45e-6dca-4d87-8c07-23e9cb12092a\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\1ea7e45e-6dca-4d87-8c07-23e9cb12092a\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 | 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 | fresherlights.com | udp |
| N/A | 8.8.8.8:53 | uaery.top | udp |
| N/A | 210.182.29.70:80 | uaery.top | tcp |
| N/A | 201.124.230.1:80 | fresherlights.com | tcp |
| N/A | 201.124.230.1:80 | 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 | 20.42.65.84:443 | tcp | |
| N/A | 88.198.94.71:80 | 88.198.94.71 | 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 | |
| N/A | 93.184.221.240:80 | tcp | |
| N/A | 104.80.229.204:443 | tcp |
Files
memory/4708-132-0x00000000007B5000-0x0000000000847000-memory.dmp
memory/4184-133-0x0000000000000000-mapping.dmp
memory/4184-134-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4184-135-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4708-136-0x00000000007B5000-0x0000000000847000-memory.dmp
memory/4184-137-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4708-138-0x0000000002330000-0x000000000244B000-memory.dmp
memory/4184-139-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4588-140-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\8a8f48fa-76d9-4392-8683-87d883e080ab\aaef58ede9edbfc0cbbdd3dc7abfa9ae0f977ed1b33af4f5d7665123187801d1.exe
| MD5 | 41001fdd7879ce9ede214e92c7e492be |
| SHA1 | 215964b0399da37b41b7f420806a72feb72a7c28 |
| SHA256 | aaef58ede9edbfc0cbbdd3dc7abfa9ae0f977ed1b33af4f5d7665123187801d1 |
| SHA512 | 1d125890b19e323fd3a67b3b2575c97df72f4f8b7f13d5e1d3e010063b88cc40a6f55d25513ada752992434f0b1d350152798381d43cb2ec591020c85eec44d9 |
memory/2168-142-0x0000000000000000-mapping.dmp
memory/4184-143-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3340-144-0x0000000000000000-mapping.dmp
memory/2168-147-0x00000000020DA000-0x000000000216C000-memory.dmp
memory/3340-146-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3340-148-0x0000000000400000-0x0000000000537000-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\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
| MD5 | 76e7d5bf61b2e80d159f88aa9798ce91 |
| SHA1 | 32a46de50c9c02b068e39cf49b78c7e2d5ace20d |
| SHA256 | 280fd6ae3ad21323199759814c4dd82329eb8f9847ed1fa2be145e83b4c88bf3 |
| SHA512 | 5efd8c64ac40ae006d2ce4509eb9e5f1448fb1156e914d303e8bc4dcfe1d94c57c7eae216b362877e7b644876656cc9e5c4cebfc905bab3f8b09cb1a051d69c4 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
| MD5 | 7e46f61ae812c478fd98329da0b3b6c3 |
| SHA1 | 60b739e0fd618ebf5e9bb31bb2f47fca10b0f300 |
| SHA256 | 8fb8c26a75b9e944026ec31d5ea25d4d9dc6333251be0601c2a08a243881e665 |
| SHA512 | 284000e89dbd0aaf1bb47c1c49e6997cb32f69de3fd437bb8f8d2ca902e1bfc5c76cfa95c34eb174640a0c42845139508d94c3222ffa8e15889024c3ac23057f |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
| MD5 | 6884a89821c371de4641dce2a2674638 |
| SHA1 | a872eae304d24b0a9a849576674b61d6aa174a1d |
| SHA256 | 18f7355fee4b0b87156b702dca2188eceb669e9b486ccc9226706c14cf1e3fee |
| SHA512 | 428786ddf5f49b8cfc3c2cd5732fe2e6c00f8bfec81d134714efc1f49c81fb95706a70b4f0321b5e947fe3ed7491e2ceb2350b499d19469300efabe3d8e195ae |
memory/3340-153-0x0000000000400000-0x0000000000537000-memory.dmp
memory/5052-154-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\1ea7e45e-6dca-4d87-8c07-23e9cb12092a\build2.exe
| MD5 | b9212ded69fae1fa1fb5d6db46a9fb76 |
| SHA1 | 58face4245646b1cd379ee49f03a701eab1642be |
| SHA256 | 7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f |
| SHA512 | 09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342 |
C:\Users\Admin\AppData\Local\1ea7e45e-6dca-4d87-8c07-23e9cb12092a\build2.exe
| MD5 | b9212ded69fae1fa1fb5d6db46a9fb76 |
| SHA1 | 58face4245646b1cd379ee49f03a701eab1642be |
| SHA256 | 7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f |
| SHA512 | 09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342 |
memory/4212-157-0x0000000000000000-mapping.dmp
memory/4212-158-0x0000000000400000-0x000000000045F000-memory.dmp
memory/4212-160-0x0000000000400000-0x000000000045F000-memory.dmp
memory/5052-161-0x000000000064D000-0x0000000000679000-memory.dmp
memory/5052-163-0x00000000020D0000-0x000000000211B000-memory.dmp
memory/4212-162-0x0000000000400000-0x000000000045F000-memory.dmp
C:\Users\Admin\AppData\Local\1ea7e45e-6dca-4d87-8c07-23e9cb12092a\build2.exe
| MD5 | b9212ded69fae1fa1fb5d6db46a9fb76 |
| SHA1 | 58face4245646b1cd379ee49f03a701eab1642be |
| SHA256 | 7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f |
| SHA512 | 09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342 |
memory/4516-164-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\1ea7e45e-6dca-4d87-8c07-23e9cb12092a\build3.exe
| MD5 | 9ead10c08e72ae41921191f8db39bc16 |
| SHA1 | abe3bce01cd34afc88e2c838173f8c2bd0090ae1 |
| SHA256 | 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0 |
| SHA512 | aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a |
C:\Users\Admin\AppData\Local\1ea7e45e-6dca-4d87-8c07-23e9cb12092a\build3.exe
| MD5 | 9ead10c08e72ae41921191f8db39bc16 |
| SHA1 | abe3bce01cd34afc88e2c838173f8c2bd0090ae1 |
| SHA256 | 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0 |
| SHA512 | aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a |
memory/4212-168-0x0000000000400000-0x000000000045F000-memory.dmp
memory/2036-167-0x0000000000000000-mapping.dmp
memory/4212-169-0x0000000061E00000-0x0000000061EF3000-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/3340-189-0x0000000000400000-0x0000000000537000-memory.dmp
memory/5020-190-0x0000000000000000-mapping.dmp
memory/4212-191-0x0000000000400000-0x000000000045F000-memory.dmp
memory/4444-192-0x0000000000000000-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/2032-195-0x0000000000000000-mapping.dmp