Analysis Overview
SHA256
cbab9fe6c656cf6137965d6e4b1ca3dd46afe9ea86aa45ce6c4606a13f716e05
Threat Level: Known bad
The file cbab9fe6c656cf6137965d6e4b1ca3dd46afe9ea86aa45ce6c4606a13f716e05 was found to be: Known bad.
Malicious Activity Summary
Detected Djvu ransomware
Vidar
Djvu Ransomware
Executes dropped EXE
Downloads MZ/PE file
Modifies file permissions
Checks computer location settings
Adds Run key to start application
Looks up external IP address via web service
Suspicious use of SetThreadContext
Enumerates physical storage devices
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-11-29 18:07
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-11-29 18:07
Reported
2022-11-29 18:10
Platform
win10v2004-20220812-en
Max time kernel
150s
Max time network
154s
Command Line
Signatures
Detected Djvu ransomware
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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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\35b85ded-59d8-4976-acf4-c621225eb791\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\35b85ded-59d8-4976-acf4-c621225eb791\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\35b85ded-59d8-4976-acf4-c621225eb791\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\cbab9fe6c656cf6137965d6e4b1ca3dd46afe9ea86aa45ce6c4606a13f716e05.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\cbab9fe6c656cf6137965d6e4b1ca3dd46afe9ea86aa45ce6c4606a13f716e05.exe | N/A |
Modifies file permissions
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
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\\3c83eb69-77eb-4e77-8f1b-fc5cca1afd07\\cbab9fe6c656cf6137965d6e4b1ca3dd46afe9ea86aa45ce6c4606a13f716e05.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\cbab9fe6c656cf6137965d6e4b1ca3dd46afe9ea86aa45ce6c4606a13f716e05.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | api.2ip.ua | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4700 set thread context of 2120 | N/A | C:\Users\Admin\AppData\Local\Temp\cbab9fe6c656cf6137965d6e4b1ca3dd46afe9ea86aa45ce6c4606a13f716e05.exe | C:\Users\Admin\AppData\Local\Temp\cbab9fe6c656cf6137965d6e4b1ca3dd46afe9ea86aa45ce6c4606a13f716e05.exe |
| PID 4832 set thread context of 1912 | N/A | C:\Users\Admin\AppData\Local\Temp\cbab9fe6c656cf6137965d6e4b1ca3dd46afe9ea86aa45ce6c4606a13f716e05.exe | C:\Users\Admin\AppData\Local\Temp\cbab9fe6c656cf6137965d6e4b1ca3dd46afe9ea86aa45ce6c4606a13f716e05.exe |
| PID 320 set thread context of 2528 | N/A | C:\Users\Admin\AppData\Local\35b85ded-59d8-4976-acf4-c621225eb791\build2.exe | C:\Users\Admin\AppData\Local\35b85ded-59d8-4976-acf4-c621225eb791\build2.exe |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Modifies system certificate store
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\2796BAE63F1801E277261BA0D77770028F20EEE4 | C:\Users\Admin\AppData\Local\35b85ded-59d8-4976-acf4-c621225eb791\build2.exe | N/A |
| Set value (data) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\2796BAE63F1801E277261BA0D77770028F20EEE4\Blob = 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 | C:\Users\Admin\AppData\Local\35b85ded-59d8-4976-acf4-c621225eb791\build2.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\cbab9fe6c656cf6137965d6e4b1ca3dd46afe9ea86aa45ce6c4606a13f716e05.exe
"C:\Users\Admin\AppData\Local\Temp\cbab9fe6c656cf6137965d6e4b1ca3dd46afe9ea86aa45ce6c4606a13f716e05.exe"
C:\Users\Admin\AppData\Local\Temp\cbab9fe6c656cf6137965d6e4b1ca3dd46afe9ea86aa45ce6c4606a13f716e05.exe
"C:\Users\Admin\AppData\Local\Temp\cbab9fe6c656cf6137965d6e4b1ca3dd46afe9ea86aa45ce6c4606a13f716e05.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\3c83eb69-77eb-4e77-8f1b-fc5cca1afd07" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\cbab9fe6c656cf6137965d6e4b1ca3dd46afe9ea86aa45ce6c4606a13f716e05.exe
"C:\Users\Admin\AppData\Local\Temp\cbab9fe6c656cf6137965d6e4b1ca3dd46afe9ea86aa45ce6c4606a13f716e05.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\cbab9fe6c656cf6137965d6e4b1ca3dd46afe9ea86aa45ce6c4606a13f716e05.exe
"C:\Users\Admin\AppData\Local\Temp\cbab9fe6c656cf6137965d6e4b1ca3dd46afe9ea86aa45ce6c4606a13f716e05.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\35b85ded-59d8-4976-acf4-c621225eb791\build2.exe
"C:\Users\Admin\AppData\Local\35b85ded-59d8-4976-acf4-c621225eb791\build2.exe"
C:\Users\Admin\AppData\Local\35b85ded-59d8-4976-acf4-c621225eb791\build2.exe
"C:\Users\Admin\AppData\Local\35b85ded-59d8-4976-acf4-c621225eb791\build2.exe"
C:\Users\Admin\AppData\Local\35b85ded-59d8-4976-acf4-c621225eb791\build3.exe
"C:\Users\Admin\AppData\Local\35b85ded-59d8-4976-acf4-c621225eb791\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"
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 | 95.101.78.82:80 | tcp | |
| N/A | 20.42.65.85:443 | tcp | |
| N/A | 209.197.3.8:80 | tcp | |
| N/A | 209.197.3.8:80 | tcp | |
| N/A | 209.197.3.8:80 | tcp | |
| N/A | 162.0.217.254:443 | api.2ip.ua | tcp |
| N/A | 8.8.8.8:53 | 151.122.125.40.in-addr.arpa | udp |
| N/A | 8.8.8.8:53 | 9.9.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.0.3.0.4.0.0.3.0.1.3.0.6.2.ip6.arpa | udp |
| N/A | 8.8.8.8:53 | uaery.top | udp |
| N/A | 210.182.29.70:80 | uaery.top | tcp |
| N/A | 8.8.8.8:53 | fresherlights.com | udp |
| 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 | 187.212.179.75:80 | fresherlights.com | tcp |
| N/A | 8.8.8.8:53 | crl.godaddy.com | udp |
| N/A | 192.124.249.31:80 | crl.godaddy.com | tcp |
| N/A | 187.212.179.75:80 | fresherlights.com | tcp |
Files
memory/2120-132-0x0000000000000000-mapping.dmp
memory/2120-133-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2120-134-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4700-135-0x0000000002242000-0x00000000022D4000-memory.dmp
memory/2120-136-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4700-137-0x0000000002330000-0x000000000244B000-memory.dmp
memory/2120-138-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2240-139-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\3c83eb69-77eb-4e77-8f1b-fc5cca1afd07\cbab9fe6c656cf6137965d6e4b1ca3dd46afe9ea86aa45ce6c4606a13f716e05.exe
| MD5 | 487ccf4471137f4949f60e1c9de08df4 |
| SHA1 | e60c1cf52a06df60788592a2353f433a8b81cd12 |
| SHA256 | cbab9fe6c656cf6137965d6e4b1ca3dd46afe9ea86aa45ce6c4606a13f716e05 |
| SHA512 | f94d3d6e0f6b05401f387f7bd95e15ad2d4dd796fe6d189850e056e9b0a2c2de78a79309a68daf77d7e98b90a41afac93de4f0f587e69fa48091825739f56cac |
memory/4832-141-0x0000000000000000-mapping.dmp
memory/1912-142-0x0000000000000000-mapping.dmp
memory/1912-144-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4832-145-0x00000000021A7000-0x0000000002239000-memory.dmp
memory/1912-146-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2120-147-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1912-148-0x0000000000400000-0x0000000000537000-memory.dmp
memory/320-149-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\35b85ded-59d8-4976-acf4-c621225eb791\build2.exe
| MD5 | b9212ded69fae1fa1fb5d6db46a9fb76 |
| SHA1 | 58face4245646b1cd379ee49f03a701eab1642be |
| SHA256 | 7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f |
| SHA512 | 09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342 |
C:\Users\Admin\AppData\Local\35b85ded-59d8-4976-acf4-c621225eb791\build2.exe
| MD5 | b9212ded69fae1fa1fb5d6db46a9fb76 |
| SHA1 | 58face4245646b1cd379ee49f03a701eab1642be |
| SHA256 | 7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f |
| SHA512 | 09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342 |
memory/2528-152-0x0000000000000000-mapping.dmp
memory/2528-153-0x0000000000400000-0x000000000045F000-memory.dmp
memory/2528-155-0x0000000000400000-0x000000000045F000-memory.dmp
memory/2528-156-0x0000000000400000-0x000000000045F000-memory.dmp
memory/320-158-0x00000000006F0000-0x000000000073B000-memory.dmp
memory/320-157-0x00000000007BD000-0x00000000007E9000-memory.dmp
C:\Users\Admin\AppData\Local\35b85ded-59d8-4976-acf4-c621225eb791\build2.exe
| MD5 | b9212ded69fae1fa1fb5d6db46a9fb76 |
| SHA1 | 58face4245646b1cd379ee49f03a701eab1642be |
| SHA256 | 7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f |
| SHA512 | 09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342 |
memory/2528-159-0x0000000000400000-0x000000000045F000-memory.dmp
memory/2400-160-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\35b85ded-59d8-4976-acf4-c621225eb791\build3.exe
| MD5 | 9ead10c08e72ae41921191f8db39bc16 |
| SHA1 | abe3bce01cd34afc88e2c838173f8c2bd0090ae1 |
| SHA256 | 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0 |
| SHA512 | aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a |
C:\Users\Admin\AppData\Local\35b85ded-59d8-4976-acf4-c621225eb791\build3.exe
| MD5 | 9ead10c08e72ae41921191f8db39bc16 |
| SHA1 | abe3bce01cd34afc88e2c838173f8c2bd0090ae1 |
| SHA256 | 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0 |
| SHA512 | aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a |
memory/5064-163-0x0000000000000000-mapping.dmp