Analysis Overview
SHA256
95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0
Threat Level: Known bad
The file 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0 was found to be: Known bad.
Malicious Activity Summary
Djvu Ransomware
Vidar
Detected Djvu ransomware
Vidar Stealer
Executes dropped EXE
Downloads MZ/PE file
Modifies file permissions
Reads user/profile data of web browsers
Loads dropped DLL
Looks up external IP address via web service
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Accesses 2FA software files, possible credential harvesting
Checks installed software on the system
Suspicious use of SetThreadContext
Enumerates physical storage devices
Checks processor information in registry
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Modifies system certificate store
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-04-23 16:32
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-04-23 16:32
Reported
2022-04-23 16:35
Platform
win10-20220414-en
Max time kernel
120s
Max time network
148s
Command Line
Signatures
Detected Djvu ransomware
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Djvu Ransomware
Vidar
Vidar Stealer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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Downloads MZ/PE file
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\1bc8940c-24ff-4146-aa69-df51ba899b87\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\1bc8940c-24ff-4146-aa69-df51ba899b87\build2.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\1bc8940c-24ff-4146-aa69-df51ba899b87\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\1bc8940c-24ff-4146-aa69-df51ba899b87\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-1-5-21-4236190499-842014725-259441995-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\bda407c1-08cc-4b8d-95e8-f490ddb3027b\\95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.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 3224 set thread context of 3720 | N/A | C:\Users\Admin\AppData\Local\Temp\95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe | C:\Users\Admin\AppData\Local\Temp\95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe |
| PID 4848 set thread context of 2096 | N/A | C:\Users\Admin\AppData\Local\Temp\95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe | C:\Users\Admin\AppData\Local\Temp\95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe |
| PID 4340 set thread context of 1340 | N/A | C:\Users\Admin\AppData\Local\1bc8940c-24ff-4146-aa69-df51ba899b87\build2.exe | C:\Users\Admin\AppData\Local\1bc8940c-24ff-4146-aa69-df51ba899b87\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\1bc8940c-24ff-4146-aa69-df51ba899b87\build2.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\1bc8940c-24ff-4146-aa69-df51ba899b87\build2.exe | N/A |
Modifies system certificate store
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349 | C:\Users\Admin\AppData\Local\Temp\95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe | N/A |
| Set value (data) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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 | C:\Users\Admin\AppData\Local\Temp\95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe
"C:\Users\Admin\AppData\Local\Temp\95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe"
C:\Users\Admin\AppData\Local\Temp\95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe
"C:\Users\Admin\AppData\Local\Temp\95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\bda407c1-08cc-4b8d-95e8-f490ddb3027b" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe
"C:\Users\Admin\AppData\Local\Temp\95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe
"C:\Users\Admin\AppData\Local\Temp\95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\1bc8940c-24ff-4146-aa69-df51ba899b87\build2.exe
"C:\Users\Admin\AppData\Local\1bc8940c-24ff-4146-aa69-df51ba899b87\build2.exe"
C:\Users\Admin\AppData\Local\1bc8940c-24ff-4146-aa69-df51ba899b87\build2.exe
"C:\Users\Admin\AppData\Local\1bc8940c-24ff-4146-aa69-df51ba899b87\build2.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | api.2ip.ua | udp |
| DE | 162.0.217.254:443 | api.2ip.ua | tcp |
| DE | 162.0.217.254:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | zerit.top | udp |
| US | 8.8.8.8:53 | fuyt.org | udp |
| KW | 37.34.248.24:80 | fuyt.org | tcp |
| KR | 211.229.47.232:80 | zerit.top | tcp |
| KW | 37.34.248.24:80 | fuyt.org | tcp |
| US | 20.189.173.4:443 | tcp | |
| US | 8.8.8.8:53 | t.me | udp |
| NL | 149.154.167.99:443 | t.me | tcp |
| DE | 116.202.1.195:80 | 116.202.1.195 | tcp |
| DE | 116.202.1.195:80 | 116.202.1.195 | tcp |
Files
memory/3720-119-0x0000000000424141-mapping.dmp
memory/3720-118-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3224-121-0x00000000022C0000-0x00000000023DB000-memory.dmp
memory/3720-120-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3720-122-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3720-123-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4824-124-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\bda407c1-08cc-4b8d-95e8-f490ddb3027b\95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0.exe
| MD5 | 5f65c57c4930de406ef6894ea45af24f |
| SHA1 | 5baafb42629d3ed35ab9dc6c92beb2a7a3b34f2f |
| SHA256 | 95fd41b94b215a7d1c210f19a00c897c179626f259af3ec7199773fa005b3bf0 |
| SHA512 | 3f2db9600daac8e25ddd6ee9da8b0e4d8de76591999bba517d8b9275809c8379294071907d2d16a5ff5d32e9d20555d84cbb42a2ffc524a552c29bc708f4ec4e |
memory/4848-126-0x0000000000000000-mapping.dmp
memory/2096-129-0x0000000000424141-mapping.dmp
memory/2096-130-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2096-131-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2096-132-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4340-133-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\1bc8940c-24ff-4146-aa69-df51ba899b87\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
C:\Users\Admin\AppData\Local\1bc8940c-24ff-4146-aa69-df51ba899b87\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
memory/4340-136-0x00000000007B6000-0x00000000007E0000-memory.dmp
memory/1340-137-0x0000000000400000-0x000000000044C000-memory.dmp
C:\Users\Admin\AppData\Local\1bc8940c-24ff-4146-aa69-df51ba899b87\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
memory/1340-138-0x000000000042118A-mapping.dmp
memory/4340-141-0x00000000007B6000-0x00000000007E0000-memory.dmp
memory/1340-140-0x0000000000400000-0x000000000044C000-memory.dmp
memory/1340-142-0x0000000000400000-0x000000000044C000-memory.dmp
memory/1340-143-0x0000000000400000-0x000000000044C000-memory.dmp
\ProgramData\nss3.dll
| MD5 | bfac4e3c5908856ba17d41edcd455a51 |
| SHA1 | 8eec7e888767aa9e4cca8ff246eb2aacb9170428 |
| SHA256 | e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78 |
| SHA512 | 2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66 |
\ProgramData\mozglue.dll
| MD5 | 8f73c08a9660691143661bf7332c3c27 |
| SHA1 | 37fa65dd737c50fda710fdbde89e51374d0c204a |
| SHA256 | 3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd |
| SHA512 | 0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89 |