Analysis Overview
SHA256
f89042a6c9e20cc9c8ac9bcc741d49f810719d4c2f415f1dab9e2d9b080beb62
Threat Level: Known bad
The file f89042a6c9e20cc9c8ac9bcc741d49f810719d4c2f415f1dab9e2d9b080beb62 was found to be: Known bad.
Malicious Activity Summary
Detected Djvu ransomware
Djvu Ransomware
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
Vidar
Vidar Stealer
Executes dropped EXE
Downloads MZ/PE file
Modifies file permissions
Reads user/profile data of web browsers
Loads dropped DLL
Checks installed software on the system
Adds Run key to start application
Accesses cryptocurrency files/wallets, possible credential harvesting
Looks up external IP address via web service
Accesses 2FA software files, possible credential harvesting
Suspicious use of SetThreadContext
Enumerates physical storage devices
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Modifies system certificate store
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-04-23 16:30
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-04-23 16:30
Reported
2022-04-23 16:32
Platform
win10-20220414-en
Max time kernel
139s
Max time network
141s
Command Line
Signatures
Detected Djvu ransomware
| Description | Indicator | Process | Target |
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Djvu Ransomware
Vidar
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
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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Downloads MZ/PE file
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\74a36f39-d067-41c3-850d-4c44fe540ec3\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\74a36f39-d067-41c3-850d-4c44fe540ec3\build2.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\74a36f39-d067-41c3-850d-4c44fe540ec3\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\74a36f39-d067-41c3-850d-4c44fe540ec3\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\\009156dd-0006-4c6c-8392-c6ddeff2cdc8\\f89042a6c9e20cc9c8ac9bcc741d49f810719d4c2f415f1dab9e2d9b080beb62.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\f89042a6c9e20cc9c8ac9bcc741d49f810719d4c2f415f1dab9e2d9b080beb62.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 2932 set thread context of 3644 | N/A | C:\Users\Admin\AppData\Local\Temp\f89042a6c9e20cc9c8ac9bcc741d49f810719d4c2f415f1dab9e2d9b080beb62.exe | C:\Users\Admin\AppData\Local\Temp\f89042a6c9e20cc9c8ac9bcc741d49f810719d4c2f415f1dab9e2d9b080beb62.exe |
| PID 2512 set thread context of 2012 | N/A | C:\Users\Admin\AppData\Local\Temp\f89042a6c9e20cc9c8ac9bcc741d49f810719d4c2f415f1dab9e2d9b080beb62.exe | C:\Users\Admin\AppData\Local\Temp\f89042a6c9e20cc9c8ac9bcc741d49f810719d4c2f415f1dab9e2d9b080beb62.exe |
| PID 5088 set thread context of 1284 | N/A | C:\Users\Admin\AppData\Local\74a36f39-d067-41c3-850d-4c44fe540ec3\build2.exe | C:\Users\Admin\AppData\Local\74a36f39-d067-41c3-850d-4c44fe540ec3\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\74a36f39-d067-41c3-850d-4c44fe540ec3\build2.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\74a36f39-d067-41c3-850d-4c44fe540ec3\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\f89042a6c9e20cc9c8ac9bcc741d49f810719d4c2f415f1dab9e2d9b080beb62.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\f89042a6c9e20cc9c8ac9bcc741d49f810719d4c2f415f1dab9e2d9b080beb62.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\f89042a6c9e20cc9c8ac9bcc741d49f810719d4c2f415f1dab9e2d9b080beb62.exe
"C:\Users\Admin\AppData\Local\Temp\f89042a6c9e20cc9c8ac9bcc741d49f810719d4c2f415f1dab9e2d9b080beb62.exe"
C:\Users\Admin\AppData\Local\Temp\f89042a6c9e20cc9c8ac9bcc741d49f810719d4c2f415f1dab9e2d9b080beb62.exe
"C:\Users\Admin\AppData\Local\Temp\f89042a6c9e20cc9c8ac9bcc741d49f810719d4c2f415f1dab9e2d9b080beb62.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\009156dd-0006-4c6c-8392-c6ddeff2cdc8" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\f89042a6c9e20cc9c8ac9bcc741d49f810719d4c2f415f1dab9e2d9b080beb62.exe
"C:\Users\Admin\AppData\Local\Temp\f89042a6c9e20cc9c8ac9bcc741d49f810719d4c2f415f1dab9e2d9b080beb62.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\f89042a6c9e20cc9c8ac9bcc741d49f810719d4c2f415f1dab9e2d9b080beb62.exe
"C:\Users\Admin\AppData\Local\Temp\f89042a6c9e20cc9c8ac9bcc741d49f810719d4c2f415f1dab9e2d9b080beb62.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\74a36f39-d067-41c3-850d-4c44fe540ec3\build2.exe
"C:\Users\Admin\AppData\Local\74a36f39-d067-41c3-850d-4c44fe540ec3\build2.exe"
C:\Users\Admin\AppData\Local\74a36f39-d067-41c3-850d-4c44fe540ec3\build2.exe
"C:\Users\Admin\AppData\Local\74a36f39-d067-41c3-850d-4c44fe540ec3\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 | 116.121.62.237:80 | fuyt.org | tcp |
| KR | 211.40.39.251:80 | zerit.top | tcp |
| EG | 41.41.255.235:80 | zerit.top | tcp |
| KR | 116.121.62.237:80 | 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 | 8.238.20.126:80 | tcp | |
| DE | 116.202.1.195:80 | 116.202.1.195 | tcp |
Files
memory/3644-115-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3644-116-0x0000000000424141-mapping.dmp
memory/3644-117-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2932-118-0x0000000002220000-0x000000000233B000-memory.dmp
memory/3644-119-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3644-120-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4440-121-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\009156dd-0006-4c6c-8392-c6ddeff2cdc8\f89042a6c9e20cc9c8ac9bcc741d49f810719d4c2f415f1dab9e2d9b080beb62.exe
| MD5 | dbd24884d07cd3faeb827719541ea896 |
| SHA1 | 29a9d79968051f30f054274073849e357320da14 |
| SHA256 | f89042a6c9e20cc9c8ac9bcc741d49f810719d4c2f415f1dab9e2d9b080beb62 |
| SHA512 | 8e070e8b19c0395e1ef539dd245dd9a14ecfb86cc8a4af9da9edd204f9504a94cedf8ae26b0c0a7bca14c810db0fcaa27bf864d4edc0572279560a81d66a7396 |
memory/2512-123-0x0000000000000000-mapping.dmp
memory/2012-126-0x0000000000424141-mapping.dmp
memory/2012-127-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2012-128-0x0000000000400000-0x0000000000537000-memory.dmp
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 | 6b061e55fe1fde25ad866e9957332878 |
| SHA1 | 2fbd6bef8b8e6373d363505f3d5bc50286846372 |
| SHA256 | ac6e39d149f9a64a31aeb4f74b7133687843f5c12ba353fe15bb411597b96941 |
| SHA512 | 9651853e7b14daec453b6c4a1084c7ef5806bb91dec05e9606a781aec0f1b23af438159624a94f29502e0331eb4ed3273270d04cc3401d2970b1a36147c9dbe9 |
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 | ed8830651bda7dde5a3b2eeb7e620735 |
| SHA1 | 2f1b51c523608f0dddf78031d7f43f57b114a056 |
| SHA256 | 2020da41fe007ca581a6fca23bd8c288373911148678dc054313de456673944b |
| SHA512 | 2cf85939a093c240e21930d3167d933612936bcbc045321e383f47b86e2cf391a78bbf628b7c55056bdb70f42f38e8dcbb60c726fff5769af6d0e4defc486def |
memory/2012-133-0x0000000000400000-0x0000000000537000-memory.dmp
memory/5088-134-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\74a36f39-d067-41c3-850d-4c44fe540ec3\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
C:\Users\Admin\AppData\Local\74a36f39-d067-41c3-850d-4c44fe540ec3\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
memory/1284-139-0x000000000042118A-mapping.dmp
memory/1284-138-0x0000000000400000-0x000000000044C000-memory.dmp
C:\Users\Admin\AppData\Local\74a36f39-d067-41c3-850d-4c44fe540ec3\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
memory/1284-141-0x0000000000400000-0x000000000044C000-memory.dmp
memory/1284-142-0x0000000000400000-0x000000000044C000-memory.dmp
memory/1284-143-0x0000000000400000-0x000000000044C000-memory.dmp
\ProgramData\nss3.dll
| MD5 | bfac4e3c5908856ba17d41edcd455a51 |
| SHA1 | 8eec7e888767aa9e4cca8ff246eb2aacb9170428 |
| SHA256 | e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78 |
| SHA512 | 2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66 |
\ProgramData\mozglue.dll
| MD5 | 8f73c08a9660691143661bf7332c3c27 |
| SHA1 | 37fa65dd737c50fda710fdbde89e51374d0c204a |
| SHA256 | 3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd |
| SHA512 | 0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89 |