Analysis Overview
SHA256
bb931f9995541cb3bc33facf9e11e1a3aecba42293ef7825d626cb028e503b27
Threat Level: Known bad
The file bb931f9995541cb3bc33facf9e11e1a3aecba42293ef7825d626cb028e503b27 was found to be: Known bad.
Malicious Activity Summary
Djvu Ransomware
Detected Djvu ransomware
Vidar
Vidar Stealer
Executes dropped EXE
Downloads MZ/PE file
Reads user/profile data of web browsers
Modifies file permissions
Loads dropped DLL
Checks computer location settings
Checks installed software on the system
Adds Run key to start application
Accesses 2FA software files, possible credential harvesting
Looks up external IP address via web service
Accesses cryptocurrency files/wallets, possible credential harvesting
Suspicious use of SetThreadContext
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Modifies system certificate store
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-04-24 03:55
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-04-24 03:55
Reported
2022-04-24 03:58
Platform
win10v2004-20220414-en
Max time kernel
100s
Max time network
124s
Command Line
Signatures
Detected Djvu ransomware
| Description | Indicator | Process | Target |
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Djvu Ransomware
Vidar
Vidar Stealer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
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| N/A | N/A | N/A | N/A |
Downloads MZ/PE file
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\445b8b1b-d287-4d91-bd72-2ba76cac612b\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\445b8b1b-d287-4d91-bd72-2ba76cac612b\build2.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\bb931f9995541cb3bc33facf9e11e1a3aecba42293ef7825d626cb028e503b27.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\bb931f9995541cb3bc33facf9e11e1a3aecba42293ef7825d626cb028e503b27.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\445b8b1b-d287-4d91-bd72-2ba76cac612b\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\445b8b1b-d287-4d91-bd72-2ba76cac612b\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-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\24b9160b-ade5-47b6-9368-d87bed180bf5\\bb931f9995541cb3bc33facf9e11e1a3aecba42293ef7825d626cb028e503b27.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\bb931f9995541cb3bc33facf9e11e1a3aecba42293ef7825d626cb028e503b27.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 3644 set thread context of 2580 | N/A | C:\Users\Admin\AppData\Local\Temp\bb931f9995541cb3bc33facf9e11e1a3aecba42293ef7825d626cb028e503b27.exe | C:\Users\Admin\AppData\Local\Temp\bb931f9995541cb3bc33facf9e11e1a3aecba42293ef7825d626cb028e503b27.exe |
| PID 4804 set thread context of 4996 | N/A | C:\Users\Admin\AppData\Local\Temp\bb931f9995541cb3bc33facf9e11e1a3aecba42293ef7825d626cb028e503b27.exe | C:\Users\Admin\AppData\Local\Temp\bb931f9995541cb3bc33facf9e11e1a3aecba42293ef7825d626cb028e503b27.exe |
| PID 3960 set thread context of 3656 | N/A | C:\Users\Admin\AppData\Local\445b8b1b-d287-4d91-bd72-2ba76cac612b\build2.exe | C:\Users\Admin\AppData\Local\445b8b1b-d287-4d91-bd72-2ba76cac612b\build2.exe |
Enumerates physical storage devices
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\445b8b1b-d287-4d91-bd72-2ba76cac612b\build2.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\445b8b1b-d287-4d91-bd72-2ba76cac612b\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\bb931f9995541cb3bc33facf9e11e1a3aecba42293ef7825d626cb028e503b27.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\bb931f9995541cb3bc33facf9e11e1a3aecba42293ef7825d626cb028e503b27.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\bb931f9995541cb3bc33facf9e11e1a3aecba42293ef7825d626cb028e503b27.exe
"C:\Users\Admin\AppData\Local\Temp\bb931f9995541cb3bc33facf9e11e1a3aecba42293ef7825d626cb028e503b27.exe"
C:\Users\Admin\AppData\Local\Temp\bb931f9995541cb3bc33facf9e11e1a3aecba42293ef7825d626cb028e503b27.exe
"C:\Users\Admin\AppData\Local\Temp\bb931f9995541cb3bc33facf9e11e1a3aecba42293ef7825d626cb028e503b27.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\24b9160b-ade5-47b6-9368-d87bed180bf5" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\bb931f9995541cb3bc33facf9e11e1a3aecba42293ef7825d626cb028e503b27.exe
"C:\Users\Admin\AppData\Local\Temp\bb931f9995541cb3bc33facf9e11e1a3aecba42293ef7825d626cb028e503b27.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\bb931f9995541cb3bc33facf9e11e1a3aecba42293ef7825d626cb028e503b27.exe
"C:\Users\Admin\AppData\Local\Temp\bb931f9995541cb3bc33facf9e11e1a3aecba42293ef7825d626cb028e503b27.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\445b8b1b-d287-4d91-bd72-2ba76cac612b\build2.exe
"C:\Users\Admin\AppData\Local\445b8b1b-d287-4d91-bd72-2ba76cac612b\build2.exe"
C:\Users\Admin\AppData\Local\445b8b1b-d287-4d91-bd72-2ba76cac612b\build2.exe
"C:\Users\Admin\AppData\Local\445b8b1b-d287-4d91-bd72-2ba76cac612b\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 |
| KR | 58.235.189.190:80 | fuyt.org | tcp |
| KR | 110.14.121.123:80 | zerit.top | tcp |
| KR | 58.235.189.190:80 | fuyt.org | 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 |
| US | 20.189.173.11:443 | tcp | |
| NL | 104.110.191.140:80 | tcp | |
| BE | 8.238.110.126:80 | tcp | |
| DE | 116.202.1.195:80 | 116.202.1.195 | tcp |
Files
memory/2580-130-0x0000000000000000-mapping.dmp
memory/2580-131-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2580-132-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3644-133-0x000000000231A000-0x00000000023AC000-memory.dmp
memory/3644-135-0x00000000023B0000-0x00000000024CB000-memory.dmp
memory/2580-134-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2580-136-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4304-137-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\24b9160b-ade5-47b6-9368-d87bed180bf5\bb931f9995541cb3bc33facf9e11e1a3aecba42293ef7825d626cb028e503b27.exe
| MD5 | d8f6e2d9acbbb213ee726d1772e4a838 |
| SHA1 | 1eb0d480d54af263fab7e0c1d55627264f3dd280 |
| SHA256 | bb931f9995541cb3bc33facf9e11e1a3aecba42293ef7825d626cb028e503b27 |
| SHA512 | 9daffbee8477c014dbe3e7531fde84faf5c56b3c0fa20d23a82fab77e2c6a265864d3400fad745101a7e153b978125c9ce7d620c722e5528bbf3c97f07b1dca9 |
memory/4804-139-0x0000000000000000-mapping.dmp
memory/4996-140-0x0000000000000000-mapping.dmp
memory/4804-143-0x0000000000948000-0x00000000009DA000-memory.dmp
memory/4996-142-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4996-144-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
| MD5 | 4b48eeea719432bc0719653be71e6ecf |
| SHA1 | 41367524cf7d0c34d7737722cb2212558fca9938 |
| SHA256 | 2d25e68537528a81bcadb24f24afda11671512a17d04ed304cf138a30b228866 |
| SHA512 | 152b287e3d0c05f3b4dea98a20e1fc39a61008b3d5c4acc7632647bdffc090ef2ea76d4ec3a6d0cf3387c9f2f43fde1624f213908beb9583b6ad43429f551533 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
| MD5 | 1a0b123f4f20bc88d961b545655ef2de |
| SHA1 | caca5477da5baac3f16c1cbfdc31bdc26ec0ae48 |
| SHA256 | be0316a9094c0001fe02270684be9f06df2880a1fd0547b08d1dd909d52235cd |
| SHA512 | a11f3d1e2b4a27ffe2554b27d6d7ae0c01ba577f86974e030ce87241be4d6f9730dbe619ca88c179f1c2b2908c3023ff0939b0a4806d86fe9053ced82beb03b2 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
| MD5 | ae80420644f9d17a1ceb04dfe52b4551 |
| SHA1 | aca7052dea384b8d31813c11839d16dcef04a4b5 |
| SHA256 | 8893c680c876c7e9a453e301b2763e4310c2fc165bcb8e6cf23ae117f6cff476 |
| SHA512 | 3f742909f7dc09e109f0eec4c245f3be76121dfdab494252eba5edb1907402cf7867cdc7595c529d3445a1676750aebbf9aba4df760ad58645aaf3d897a82a6d |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
| MD5 | 33f9d9b2aebce10c3560dd1847a865de |
| SHA1 | d9e1b0c7e849118e646ee02972c8b3965b8720b1 |
| SHA256 | 90463f9f01174e6159130fa60deb0894493d9361c56d0c488eb8b98a135706a0 |
| SHA512 | 69593bbfc6e1301426e50b91c0bf2d29234e268070f5f31e17ddc8a7a47ecd5ba0d6e8f23e909f6907880e4578ceba2e43f5926125f653853b6dc3f4ffeec676 |
memory/4996-149-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3960-150-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\445b8b1b-d287-4d91-bd72-2ba76cac612b\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
C:\Users\Admin\AppData\Local\445b8b1b-d287-4d91-bd72-2ba76cac612b\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
memory/3960-153-0x0000000000788000-0x00000000007B3000-memory.dmp
memory/3656-154-0x0000000000000000-mapping.dmp
memory/3656-155-0x0000000000400000-0x000000000044C000-memory.dmp
C:\Users\Admin\AppData\Local\445b8b1b-d287-4d91-bd72-2ba76cac612b\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
memory/3656-158-0x0000000000400000-0x000000000044C000-memory.dmp
memory/3960-157-0x0000000000788000-0x00000000007B3000-memory.dmp
memory/3656-160-0x0000000000400000-0x000000000044C000-memory.dmp
memory/3960-159-0x0000000000700000-0x0000000000749000-memory.dmp
memory/3656-161-0x0000000000400000-0x000000000044C000-memory.dmp
C:\ProgramData\nss3.dll
| MD5 | bfac4e3c5908856ba17d41edcd455a51 |
| SHA1 | 8eec7e888767aa9e4cca8ff246eb2aacb9170428 |
| SHA256 | e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78 |
| SHA512 | 2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66 |
C:\ProgramData\mozglue.dll
| MD5 | 8f73c08a9660691143661bf7332c3c27 |
| SHA1 | 37fa65dd737c50fda710fdbde89e51374d0c204a |
| SHA256 | 3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd |
| SHA512 | 0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89 |