Analysis Overview
SHA256
d70f9a4709972224ff184c4ba98c4d69154a709c70d5cf1285e947fdc78c69a7
Threat Level: Known bad
The file d70f9a4709972224ff184c4ba98c4d69154a709c70d5cf1285e947fdc78c69a7 was found to be: Known bad.
Malicious Activity Summary
Djvu Ransomware
Detected Djvu ransomware
Vidar
Vidar Stealer
Downloads MZ/PE file
Executes dropped EXE
Reads user/profile data of web browsers
Loads dropped DLL
Modifies file permissions
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Looks up external IP address via web service
Checks installed software on the system
Accesses 2FA software files, possible credential harvesting
Suspicious use of SetThreadContext
Enumerates physical storage devices
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Checks processor information in registry
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-04-24 04:22
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-04-24 04:22
Reported
2022-04-24 04:25
Platform
win10-20220414-en
Max time kernel
121s
Max time network
141s
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 |
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Downloads MZ/PE file
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\315b9804-17e9-424b-ac5d-5637f0f70f08\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\315b9804-17e9-424b-ac5d-5637f0f70f08\build2.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\315b9804-17e9-424b-ac5d-5637f0f70f08\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\315b9804-17e9-424b-ac5d-5637f0f70f08\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-1-5-21-3578829114-180201921-3281645608-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\b9fc1833-4d6e-42bc-af4c-35f8737ad3f9\\d70f9a4709972224ff184c4ba98c4d69154a709c70d5cf1285e947fdc78c69a7.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\d70f9a4709972224ff184c4ba98c4d69154a709c70d5cf1285e947fdc78c69a7.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 3192 set thread context of 3252 | N/A | C:\Users\Admin\AppData\Local\Temp\d70f9a4709972224ff184c4ba98c4d69154a709c70d5cf1285e947fdc78c69a7.exe | C:\Users\Admin\AppData\Local\Temp\d70f9a4709972224ff184c4ba98c4d69154a709c70d5cf1285e947fdc78c69a7.exe |
| PID 2248 set thread context of 3824 | N/A | C:\Users\Admin\AppData\Local\Temp\d70f9a4709972224ff184c4ba98c4d69154a709c70d5cf1285e947fdc78c69a7.exe | C:\Users\Admin\AppData\Local\Temp\d70f9a4709972224ff184c4ba98c4d69154a709c70d5cf1285e947fdc78c69a7.exe |
| PID 2540 set thread context of 3596 | N/A | C:\Users\Admin\AppData\Local\315b9804-17e9-424b-ac5d-5637f0f70f08\build2.exe | C:\Users\Admin\AppData\Local\315b9804-17e9-424b-ac5d-5637f0f70f08\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\315b9804-17e9-424b-ac5d-5637f0f70f08\build2.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\315b9804-17e9-424b-ac5d-5637f0f70f08\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\d70f9a4709972224ff184c4ba98c4d69154a709c70d5cf1285e947fdc78c69a7.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\d70f9a4709972224ff184c4ba98c4d69154a709c70d5cf1285e947fdc78c69a7.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\d70f9a4709972224ff184c4ba98c4d69154a709c70d5cf1285e947fdc78c69a7.exe
"C:\Users\Admin\AppData\Local\Temp\d70f9a4709972224ff184c4ba98c4d69154a709c70d5cf1285e947fdc78c69a7.exe"
C:\Users\Admin\AppData\Local\Temp\d70f9a4709972224ff184c4ba98c4d69154a709c70d5cf1285e947fdc78c69a7.exe
"C:\Users\Admin\AppData\Local\Temp\d70f9a4709972224ff184c4ba98c4d69154a709c70d5cf1285e947fdc78c69a7.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\b9fc1833-4d6e-42bc-af4c-35f8737ad3f9" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\d70f9a4709972224ff184c4ba98c4d69154a709c70d5cf1285e947fdc78c69a7.exe
"C:\Users\Admin\AppData\Local\Temp\d70f9a4709972224ff184c4ba98c4d69154a709c70d5cf1285e947fdc78c69a7.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\d70f9a4709972224ff184c4ba98c4d69154a709c70d5cf1285e947fdc78c69a7.exe
"C:\Users\Admin\AppData\Local\Temp\d70f9a4709972224ff184c4ba98c4d69154a709c70d5cf1285e947fdc78c69a7.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\315b9804-17e9-424b-ac5d-5637f0f70f08\build2.exe
"C:\Users\Admin\AppData\Local\315b9804-17e9-424b-ac5d-5637f0f70f08\build2.exe"
C:\Users\Admin\AppData\Local\315b9804-17e9-424b-ac5d-5637f0f70f08\build2.exe
"C:\Users\Admin\AppData\Local\315b9804-17e9-424b-ac5d-5637f0f70f08\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 | 61.98.7.132:80 | fuyt.org | tcp |
| AR | 186.182.55.44:80 | zerit.top | tcp |
| KR | 61.98.7.132:80 | fuyt.org | tcp |
| US | 52.182.143.210:443 | tcp | |
| NL | 104.110.191.133:80 | 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/3252-118-0x0000000000424141-mapping.dmp
memory/3252-117-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3252-119-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3192-120-0x00000000009E0000-0x0000000000AFB000-memory.dmp
memory/3252-121-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3252-122-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3344-123-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\b9fc1833-4d6e-42bc-af4c-35f8737ad3f9\d70f9a4709972224ff184c4ba98c4d69154a709c70d5cf1285e947fdc78c69a7.exe
| MD5 | d5546ad159867e4b7cd788af914f495b |
| SHA1 | dfbb44ea6bd18a15808daf5534d620353b5352b6 |
| SHA256 | d70f9a4709972224ff184c4ba98c4d69154a709c70d5cf1285e947fdc78c69a7 |
| SHA512 | 87c1fe378d32caebdfd2668446ac90f94614e28d561f24d6695a8d9850d1e13040fbce4db58fb0ec2f4045660819afaf23ac5c2e36f75c1e36453ffed22b09ec |
memory/2248-125-0x0000000000000000-mapping.dmp
memory/3824-128-0x0000000000424141-mapping.dmp
memory/3824-129-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3824-130-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3824-131-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2540-132-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\315b9804-17e9-424b-ac5d-5637f0f70f08\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
C:\Users\Admin\AppData\Local\315b9804-17e9-424b-ac5d-5637f0f70f08\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
memory/2540-135-0x0000000000736000-0x0000000000760000-memory.dmp
memory/3596-136-0x0000000000400000-0x000000000044C000-memory.dmp
C:\Users\Admin\AppData\Local\315b9804-17e9-424b-ac5d-5637f0f70f08\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
memory/2540-140-0x0000000000736000-0x0000000000760000-memory.dmp
memory/3596-139-0x0000000000400000-0x000000000044C000-memory.dmp
memory/2540-141-0x00000000006D0000-0x0000000000719000-memory.dmp
memory/3596-137-0x000000000042118A-mapping.dmp
memory/3596-142-0x0000000000400000-0x000000000044C000-memory.dmp
memory/3596-143-0x0000000000400000-0x000000000044C000-memory.dmp
\ProgramData\nss3.dll
| MD5 | bfac4e3c5908856ba17d41edcd455a51 |
| SHA1 | 8eec7e888767aa9e4cca8ff246eb2aacb9170428 |
| SHA256 | e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78 |
| SHA512 | 2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66 |
\ProgramData\mozglue.dll
| MD5 | 8f73c08a9660691143661bf7332c3c27 |
| SHA1 | 37fa65dd737c50fda710fdbde89e51374d0c204a |
| SHA256 | 3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd |
| SHA512 | 0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89 |