Analysis Overview
SHA256
662038a19b6074fd024a78fbe35bc7f039cb4a8feedec3ab9d51724d90fdd126
Threat Level: Known bad
The file 662038a19b6074fd024a78fbe35bc7f039cb4a8feedec3ab9d51724d90fdd126 was found to be: Known bad.
Malicious Activity Summary
Vidar
Djvu Ransomware
Detected Djvu ransomware
Vidar Stealer
Downloads MZ/PE file
Executes dropped EXE
Reads user/profile data of web browsers
Modifies file permissions
Checks computer location settings
Loads dropped DLL
Accesses cryptocurrency files/wallets, possible credential harvesting
Accesses 2FA software files, possible credential harvesting
Adds Run key to start application
Looks up external IP address via web service
Checks installed software on the system
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
2022-04-23 23:40
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-04-23 23:40
Reported
2022-04-23 23:43
Platform
win10v2004-20220414-en
Max time kernel
102s
Max time network
127s
Command Line
Signatures
Detected Djvu ransomware
| 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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
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\08852f6a-4bbc-4b37-a1e6-6d4d69b588c8\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\08852f6a-4bbc-4b37-a1e6-6d4d69b588c8\build2.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\662038a19b6074fd024a78fbe35bc7f039cb4a8feedec3ab9d51724d90fdd126.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\662038a19b6074fd024a78fbe35bc7f039cb4a8feedec3ab9d51724d90fdd126.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\08852f6a-4bbc-4b37-a1e6-6d4d69b588c8\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\08852f6a-4bbc-4b37-a1e6-6d4d69b588c8\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-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\3284a994-58fb-4fa3-b691-652e209a6606\\662038a19b6074fd024a78fbe35bc7f039cb4a8feedec3ab9d51724d90fdd126.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\662038a19b6074fd024a78fbe35bc7f039cb4a8feedec3ab9d51724d90fdd126.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 3852 set thread context of 4840 | N/A | C:\Users\Admin\AppData\Local\Temp\662038a19b6074fd024a78fbe35bc7f039cb4a8feedec3ab9d51724d90fdd126.exe | C:\Users\Admin\AppData\Local\Temp\662038a19b6074fd024a78fbe35bc7f039cb4a8feedec3ab9d51724d90fdd126.exe |
| PID 4500 set thread context of 3768 | N/A | C:\Users\Admin\AppData\Local\Temp\662038a19b6074fd024a78fbe35bc7f039cb4a8feedec3ab9d51724d90fdd126.exe | C:\Users\Admin\AppData\Local\Temp\662038a19b6074fd024a78fbe35bc7f039cb4a8feedec3ab9d51724d90fdd126.exe |
| PID 4908 set thread context of 3716 | N/A | C:\Users\Admin\AppData\Local\08852f6a-4bbc-4b37-a1e6-6d4d69b588c8\build2.exe | C:\Users\Admin\AppData\Local\08852f6a-4bbc-4b37-a1e6-6d4d69b588c8\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\08852f6a-4bbc-4b37-a1e6-6d4d69b588c8\build2.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\08852f6a-4bbc-4b37-a1e6-6d4d69b588c8\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\662038a19b6074fd024a78fbe35bc7f039cb4a8feedec3ab9d51724d90fdd126.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\662038a19b6074fd024a78fbe35bc7f039cb4a8feedec3ab9d51724d90fdd126.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\662038a19b6074fd024a78fbe35bc7f039cb4a8feedec3ab9d51724d90fdd126.exe
"C:\Users\Admin\AppData\Local\Temp\662038a19b6074fd024a78fbe35bc7f039cb4a8feedec3ab9d51724d90fdd126.exe"
C:\Users\Admin\AppData\Local\Temp\662038a19b6074fd024a78fbe35bc7f039cb4a8feedec3ab9d51724d90fdd126.exe
"C:\Users\Admin\AppData\Local\Temp\662038a19b6074fd024a78fbe35bc7f039cb4a8feedec3ab9d51724d90fdd126.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\3284a994-58fb-4fa3-b691-652e209a6606" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\662038a19b6074fd024a78fbe35bc7f039cb4a8feedec3ab9d51724d90fdd126.exe
"C:\Users\Admin\AppData\Local\Temp\662038a19b6074fd024a78fbe35bc7f039cb4a8feedec3ab9d51724d90fdd126.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\662038a19b6074fd024a78fbe35bc7f039cb4a8feedec3ab9d51724d90fdd126.exe
"C:\Users\Admin\AppData\Local\Temp\662038a19b6074fd024a78fbe35bc7f039cb4a8feedec3ab9d51724d90fdd126.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\08852f6a-4bbc-4b37-a1e6-6d4d69b588c8\build2.exe
"C:\Users\Admin\AppData\Local\08852f6a-4bbc-4b37-a1e6-6d4d69b588c8\build2.exe"
C:\Users\Admin\AppData\Local\08852f6a-4bbc-4b37-a1e6-6d4d69b588c8\build2.exe
"C:\Users\Admin\AppData\Local\08852f6a-4bbc-4b37-a1e6-6d4d69b588c8\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 |
| BR | 138.36.3.134:80 | fuyt.org | tcp |
| ER | 196.200.111.5:80 | zerit.top | tcp |
| BR | 138.36.3.134:80 | fuyt.org | tcp |
| NL | 104.110.191.140:80 | tcp | |
| IE | 20.50.80.209:443 | 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 |
| NL | 104.110.191.140:80 | tcp | |
| NL | 104.110.191.140:80 | tcp | |
| NL | 178.79.208.1:80 | tcp | |
| US | 93.184.220.29:80 | tcp | |
| DE | 116.202.1.195:80 | 116.202.1.195 | tcp |
Files
memory/3852-130-0x00000000021AE000-0x000000000223F000-memory.dmp
memory/4840-132-0x0000000000000000-mapping.dmp
memory/3852-131-0x0000000002240000-0x000000000235B000-memory.dmp
memory/4840-133-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4840-134-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4840-135-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4840-136-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2056-137-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\3284a994-58fb-4fa3-b691-652e209a6606\662038a19b6074fd024a78fbe35bc7f039cb4a8feedec3ab9d51724d90fdd126.exe
| MD5 | 51bdf4d26364965aa3f6b91a76ffd20e |
| SHA1 | 36fbb51bfa6ea62dd0566605c42ffe373ac42211 |
| SHA256 | 662038a19b6074fd024a78fbe35bc7f039cb4a8feedec3ab9d51724d90fdd126 |
| SHA512 | 7708bd989cb569c4de94bf2447758713103d0b1ebf5bc0e547d334a63ce7959130fb41bd787daf94102feff661678df3a0a93ac7296646525103b97bd5cbd103 |
memory/4500-139-0x0000000000000000-mapping.dmp
memory/3768-140-0x0000000000000000-mapping.dmp
memory/3768-142-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4500-143-0x00000000020F8000-0x0000000002189000-memory.dmp
memory/3768-144-0x0000000000400000-0x0000000000537000-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 | 3abbbd479e9ff32ee1472091ecca4b85 |
| SHA1 | 70e60a2949a631b82afac82e17464fc35a0febe8 |
| SHA256 | 890e4dabaa77f997426e3cd0de75596221237359cded9122b40cd3b324c2b9ee |
| SHA512 | c29898fba3b338acfefcd62755c5b8a81aaede7df1090ae5757cef8cd7955b55d1a6447c50e5c724c9aeb301c42d62979cc42599f81f6b9b93953d7850410a4b |
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 | afdcf5c36292e49b076f1d880922722d |
| SHA1 | df25d6127811f808b905b840b4398409f46712fa |
| SHA256 | cae452169f45f0e59ebb97d2b7e05d8628872a5554fb7fb0d2ae9718fb6b8e57 |
| SHA512 | f6a59a71998cc3d483b0195fcfd7854aeb771ef76c82ee418bdf89d52e19f6f9fd0d953845adaed8d70111e8f24d1769c09e54d4aae2745b39d9c03fe7ae19b5 |
memory/3768-149-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4908-150-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\08852f6a-4bbc-4b37-a1e6-6d4d69b588c8\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
C:\Users\Admin\AppData\Local\08852f6a-4bbc-4b37-a1e6-6d4d69b588c8\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
memory/3716-153-0x0000000000000000-mapping.dmp
memory/3716-154-0x0000000000400000-0x000000000044C000-memory.dmp
memory/3716-156-0x0000000000400000-0x000000000044C000-memory.dmp
memory/4908-157-0x0000000000728000-0x0000000000753000-memory.dmp
C:\Users\Admin\AppData\Local\08852f6a-4bbc-4b37-a1e6-6d4d69b588c8\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
memory/3716-158-0x0000000000400000-0x000000000044C000-memory.dmp
memory/4908-159-0x00000000005E0000-0x0000000000629000-memory.dmp
memory/3716-160-0x0000000000400000-0x000000000044C000-memory.dmp
memory/3716-161-0x0000000060900000-0x0000000060992000-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 |