Analysis Overview
SHA256
05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5
Threat Level: Known bad
The file 05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5 was found to be: Known bad.
Malicious Activity Summary
Detected Djvu ransomware
Vidar
Djvu Ransomware
Vidar Stealer
Downloads MZ/PE file
Executes dropped EXE
Modifies file permissions
Loads dropped DLL
Reads user/profile data of web browsers
Checks computer location settings
Looks up external IP address via web service
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Checks installed software on the system
Accesses 2FA software files, possible credential harvesting
Suspicious use of SetThreadContext
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Modifies system certificate store
Checks processor information in registry
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-04-23 15:45
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-04-23 15:45
Reported
2022-04-23 15:48
Platform
win10v2004-20220414-en
Max time kernel
100s
Max time network
124s
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
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 |
| N/A | N/A | N/A | N/A |
| 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\ec31b4cf-a227-4b76-9804-6ede721a8f41\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\ec31b4cf-a227-4b76-9804-6ede721a8f41\build2.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\ec31b4cf-a227-4b76-9804-6ede721a8f41\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\ec31b4cf-a227-4b76-9804-6ede721a8f41\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-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\97ac2bc0-6841-4295-a0bd-302916eac883\\05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.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 828 set thread context of 2400 | N/A | C:\Users\Admin\AppData\Local\Temp\05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe | C:\Users\Admin\AppData\Local\Temp\05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe |
| PID 4192 set thread context of 2200 | N/A | C:\Users\Admin\AppData\Local\Temp\05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe | C:\Users\Admin\AppData\Local\Temp\05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe |
| PID 3284 set thread context of 5036 | N/A | C:\Users\Admin\AppData\Local\ec31b4cf-a227-4b76-9804-6ede721a8f41\build2.exe | C:\Users\Admin\AppData\Local\ec31b4cf-a227-4b76-9804-6ede721a8f41\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\ec31b4cf-a227-4b76-9804-6ede721a8f41\build2.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\ec31b4cf-a227-4b76-9804-6ede721a8f41\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\05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.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\05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe
"C:\Users\Admin\AppData\Local\Temp\05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe"
C:\Users\Admin\AppData\Local\Temp\05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe
"C:\Users\Admin\AppData\Local\Temp\05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\97ac2bc0-6841-4295-a0bd-302916eac883" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe
"C:\Users\Admin\AppData\Local\Temp\05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe
"C:\Users\Admin\AppData\Local\Temp\05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\ec31b4cf-a227-4b76-9804-6ede721a8f41\build2.exe
"C:\Users\Admin\AppData\Local\ec31b4cf-a227-4b76-9804-6ede721a8f41\build2.exe"
C:\Users\Admin\AppData\Local\ec31b4cf-a227-4b76-9804-6ede721a8f41\build2.exe
"C:\Users\Admin\AppData\Local\ec31b4cf-a227-4b76-9804-6ede721a8f41\build2.exe"
Network
| Country | Destination | Domain | Proto |
| NL | 104.110.191.133:80 | tcp | |
| NL | 104.110.191.133:80 | tcp | |
| 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 |
| MX | 201.124.224.61:80 | fuyt.org | tcp |
| SA | 51.211.223.151:80 | zerit.top | tcp |
| MX | 201.124.224.61:80 | 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 | 104.208.16.90:443 | tcp | |
| US | 93.184.221.240:80 | tcp | |
| US | 93.184.221.240:80 | tcp | |
| US | 93.184.221.240:80 | tcp |
Files
memory/2400-130-0x0000000000000000-mapping.dmp
memory/2400-131-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2400-133-0x0000000000400000-0x0000000000537000-memory.dmp
memory/828-132-0x0000000000992000-0x0000000000A24000-memory.dmp
memory/828-134-0x0000000000AF0000-0x0000000000C0B000-memory.dmp
memory/2400-135-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2400-136-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3408-137-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\97ac2bc0-6841-4295-a0bd-302916eac883\05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe
| MD5 | cda5bcf41b89380575ca3fa7ac6c6f50 |
| SHA1 | bbf533e3484c22f39149d5fb78abf40df549c586 |
| SHA256 | 05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5 |
| SHA512 | 1134cd91e1fb6c0d30c454bf51f204a51070dc5dc8ee3308d76fa2a4e89ad7c988336629d606805ce8c22faf85573da6b25900b1540a074b230afec3ce3b3f61 |
memory/4192-139-0x0000000000000000-mapping.dmp
memory/2200-140-0x0000000000000000-mapping.dmp
memory/4192-143-0x0000000000979000-0x0000000000A0B000-memory.dmp
memory/2200-142-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2200-144-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2200-145-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
| MD5 | 94a7637a99f032c8438234ed4bec1c16 |
| SHA1 | aa4478210e04c6770b6c2fff0a318c613a6a0f69 |
| SHA256 | e3cbea8ea0eeee03bae9874f0473d4f3c394179e4c5e2851802892afeda5048a |
| SHA512 | d81c7d77bcaafc7c706e4b4fb8f2f34143ce1d03763bca73062b1f8e6a02075ff10a88da0e4b7a161b342e28df3b2aaa584a320960bab77aa8c71df9c2a69e19 |
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\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
| MD5 | ae80420644f9d17a1ceb04dfe52b4551 |
| SHA1 | aca7052dea384b8d31813c11839d16dcef04a4b5 |
| SHA256 | 8893c680c876c7e9a453e301b2763e4310c2fc165bcb8e6cf23ae117f6cff476 |
| SHA512 | 3f742909f7dc09e109f0eec4c245f3be76121dfdab494252eba5edb1907402cf7867cdc7595c529d3445a1676750aebbf9aba4df760ad58645aaf3d897a82a6d |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
| MD5 | 1195e0626369a9d55157d658565abd04 |
| SHA1 | 0448c4d56462ee5ece695e99ca6e44be9dff8e7a |
| SHA256 | 670955e05f2e4e50a9ed074db84022143dc5786e578cdd18028785366e5d29ac |
| SHA512 | 1b9120ab77c44401bc63c15ea462a3f5ad8d5c58fb05609cfe4fb9d41416949077fa42f55e6e7673591c082a673a5af305d3bb94c103f58e6cc29fc7ce7f78c9 |
memory/3284-150-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\ec31b4cf-a227-4b76-9804-6ede721a8f41\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
C:\Users\Admin\AppData\Local\ec31b4cf-a227-4b76-9804-6ede721a8f41\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
memory/3284-153-0x0000000000518000-0x0000000000542000-memory.dmp
memory/5036-154-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\ec31b4cf-a227-4b76-9804-6ede721a8f41\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
memory/5036-155-0x0000000000400000-0x000000000044C000-memory.dmp
memory/5036-158-0x0000000000400000-0x000000000044C000-memory.dmp
memory/3284-159-0x00000000020B0000-0x00000000020F9000-memory.dmp
memory/5036-160-0x0000000000400000-0x000000000044C000-memory.dmp
memory/3284-157-0x0000000000518000-0x0000000000542000-memory.dmp
memory/5036-161-0x0000000000400000-0x000000000044C000-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 |