Analysis Overview
SHA256
d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699
Threat Level: Known bad
The file d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699 was found to be: Known bad.
Malicious Activity Summary
Vidar
Djvu Ransomware
Detected Djvu ransomware
Executes dropped EXE
Downloads MZ/PE file
Modifies file permissions
Reads user/profile data of web browsers
Loads dropped DLL
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
Program crash
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Checks processor information in registry
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-10-11 14:34
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-10-11 14:34
Reported
2022-10-11 14:36
Platform
win10-20220901-en
Max time kernel
150s
Max time network
137s
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
Downloads MZ/PE file
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\017f357a-6503-40e1-9f87-055b7c9b6eb2\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\017f357a-6503-40e1-9f87-055b7c9b6eb2\build2.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\017f357a-6503-40e1-9f87-055b7c9b6eb2\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\017f357a-6503-40e1-9f87-055b7c9b6eb2\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-1-5-21-2368682536-4045190062-1465778271-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\f9048fc7-3ae8-4a68-9089-916e476bcad7\\d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.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 3520 set thread context of 3312 | N/A | C:\Users\Admin\AppData\Local\Temp\d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe | C:\Users\Admin\AppData\Local\Temp\d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe |
| PID 3244 set thread context of 2276 | N/A | C:\Users\Admin\AppData\Local\Temp\d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe | C:\Users\Admin\AppData\Local\Temp\d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe |
| PID 4844 set thread context of 3160 | N/A | C:\Users\Admin\AppData\Local\017f357a-6503-40e1-9f87-055b7c9b6eb2\build2.exe | C:\Users\Admin\AppData\Local\017f357a-6503-40e1-9f87-055b7c9b6eb2\build2.exe |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\017f357a-6503-40e1-9f87-055b7c9b6eb2\build2.exe |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\017f357a-6503-40e1-9f87-055b7c9b6eb2\build2.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\017f357a-6503-40e1-9f87-055b7c9b6eb2\build2.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe
"C:\Users\Admin\AppData\Local\Temp\d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe"
C:\Users\Admin\AppData\Local\Temp\d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe
"C:\Users\Admin\AppData\Local\Temp\d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\f9048fc7-3ae8-4a68-9089-916e476bcad7" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe
"C:\Users\Admin\AppData\Local\Temp\d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe
"C:\Users\Admin\AppData\Local\Temp\d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\017f357a-6503-40e1-9f87-055b7c9b6eb2\build2.exe
"C:\Users\Admin\AppData\Local\017f357a-6503-40e1-9f87-055b7c9b6eb2\build2.exe"
C:\Users\Admin\AppData\Local\017f357a-6503-40e1-9f87-055b7c9b6eb2\build2.exe
"C:\Users\Admin\AppData\Local\017f357a-6503-40e1-9f87-055b7c9b6eb2\build2.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3160 -s 1484
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | api.2ip.ua | udp |
| NL | 162.0.217.254:443 | api.2ip.ua | tcp |
| NL | 162.0.217.254:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | rgyui.top | udp |
| US | 8.8.8.8:53 | winnlinne.com | udp |
| KR | 115.88.24.203:80 | winnlinne.com | tcp |
| KR | 211.40.39.251:80 | rgyui.top | tcp |
| KR | 115.88.24.203:80 | winnlinne.com | tcp |
| KR | 115.88.24.203:80 | winnlinne.com | tcp |
| US | 8.8.8.8:53 | t.me | udp |
| NL | 149.154.167.99:443 | t.me | tcp |
| DE | 195.201.251.151:80 | 195.201.251.151 | tcp |
| US | 52.168.112.66:443 | tcp | |
| KR | 115.88.24.203:80 | winnlinne.com | tcp |
| KR | 115.88.24.203:80 | winnlinne.com | tcp |
Files
memory/3520-117-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3520-118-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3520-119-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3520-120-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3520-121-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3520-122-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3520-123-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3520-124-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3520-125-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3520-126-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3520-127-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3520-128-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3520-129-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3520-130-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3520-131-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3520-132-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3520-133-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3520-134-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3520-135-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3520-136-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3520-137-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3520-138-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3520-140-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3520-141-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3520-142-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3520-143-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3520-144-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-146-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3312-147-0x0000000000424141-mapping.dmp
memory/3520-145-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3520-149-0x00000000024F0000-0x000000000260B000-memory.dmp
memory/3312-148-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-151-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-150-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-152-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-153-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-154-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3312-155-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-156-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-157-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-158-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-159-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-160-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-161-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-162-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-164-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-163-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-165-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-166-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-167-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-168-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-169-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-171-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-172-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-173-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-174-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-175-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-170-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-176-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-177-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-178-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-179-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-180-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-181-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-182-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-183-0x0000000077B00000-0x0000000077C8E000-memory.dmp
memory/3312-208-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4532-219-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\f9048fc7-3ae8-4a68-9089-916e476bcad7\d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe
| MD5 | eb35897a35bb177b8604463adb69227d |
| SHA1 | 347ecca1055ef76d3e72e76d33090bfecd803c6a |
| SHA256 | d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699 |
| SHA512 | 9c6c45e98fa1944ef91f341394532d7123c445a5e4d7ce19315541295a47cca5772da562f65935f84676ce8e59e96a9c427a48e72937f801c91fe9d3bdc1c938 |
memory/3244-245-0x0000000000000000-mapping.dmp
memory/3312-247-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3244-275-0x0000000002250000-0x00000000022EB000-memory.dmp
memory/2276-276-0x0000000000424141-mapping.dmp
memory/2276-336-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
| MD5 | 13d5abfd9eb95701861883684733eb4b |
| SHA1 | 78efbea26633dc86f9accd648593b4e66c4b7579 |
| SHA256 | a749dbd45d92ab37631031e59f1752638fafb98b34487ee70608271f4c928b13 |
| SHA512 | 5eb93f5104511c98966b22b8cb7da8f6e81f47ead9eafdc4a14bea932901c39bbe78dfa6321d78e34816ea5499c17d475a0771ee0abeeddaec9aa7bc207484d5 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
| MD5 | 6f59ed058aa06aaf5ec6213b955aabd4 |
| SHA1 | baf7b828a563b8fb6111e4ce35e0055575ad80b4 |
| SHA256 | 2d82e2629fa2e08f28b43b15da43dff56c7f4b23b39d66109c7c61998e35b4d5 |
| SHA512 | 6b0f041dafb98b9eaf70ac0d20a98c56e1c42231c4a4ae6e11582b20d20bf8f96dfd7747739a10d77368994441adb0e181b356f8569697b1f22ab4fe931170ce |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
| MD5 | 0698dbc93ba7b6bef73ba316695f8317 |
| SHA1 | a444078ff1eb7c88f52cb4e324365926b491ed47 |
| SHA256 | 263292040d77903899257c1d21201dc64d6f8d6b5a1d945cd5b28d0124d7906c |
| SHA512 | ebacaa7009aebb88199cd70fd0bb3afe69ed300318cb633edd1c0404e42aef829617f589bcbad6cb7ab4bd0a8ae87f7df1435c786184ecc5de61c8fc6950a900 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
| MD5 | 57e8fe93c6ddf72a2935cc22f520b188 |
| SHA1 | 5703d0f57c10506bc6972db65aaf0843639b49bf |
| SHA256 | ba1982ccfc01323fe4dfbc1b49de1d8b378de30906fd60e7579cdccc4c6b4e13 |
| SHA512 | 82c27e413c597e56dbe96fff1d4c36e621a7760e74dabca4a6b82dfc3dbc69bd4104c3edcb27283f1336b34e385735188888195586d8a2dbcef5a309fec28843 |
memory/4844-356-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\017f357a-6503-40e1-9f87-055b7c9b6eb2\build2.exe
| MD5 | 5fd8c38657bb9393bb4736c880675223 |
| SHA1 | f3a03b2e75cef22262f6677e3832b6ad9327905c |
| SHA256 | 2a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6 |
| SHA512 | 43c82f6db716792a770a3573a9d20cb69a2421ccc2bb875e57f4270d92c9289ee684deda19e3232c50f4675aaf86de173f73376a00f927a8d9847f60b8b732fe |
C:\Users\Admin\AppData\Local\017f357a-6503-40e1-9f87-055b7c9b6eb2\build2.exe
| MD5 | 5fd8c38657bb9393bb4736c880675223 |
| SHA1 | f3a03b2e75cef22262f6677e3832b6ad9327905c |
| SHA256 | 2a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6 |
| SHA512 | 43c82f6db716792a770a3573a9d20cb69a2421ccc2bb875e57f4270d92c9289ee684deda19e3232c50f4675aaf86de173f73376a00f927a8d9847f60b8b732fe |
C:\Users\Admin\AppData\Local\017f357a-6503-40e1-9f87-055b7c9b6eb2\build2.exe
| MD5 | 5fd8c38657bb9393bb4736c880675223 |
| SHA1 | f3a03b2e75cef22262f6677e3832b6ad9327905c |
| SHA256 | 2a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6 |
| SHA512 | 43c82f6db716792a770a3573a9d20cb69a2421ccc2bb875e57f4270d92c9289ee684deda19e3232c50f4675aaf86de173f73376a00f927a8d9847f60b8b732fe |
memory/4844-392-0x00000000008AA000-0x00000000008D6000-memory.dmp
memory/3160-388-0x0000000000429CBD-mapping.dmp
memory/4844-394-0x0000000000820000-0x000000000086F000-memory.dmp
memory/3160-423-0x0000000000400000-0x0000000000463000-memory.dmp
memory/2276-460-0x0000000000400000-0x0000000000537000-memory.dmp
\ProgramData\nss3.dll
| MD5 | 1cc453cdf74f31e4d913ff9c10acdde2 |
| SHA1 | 6e85eae544d6e965f15fa5c39700fa7202f3aafe |
| SHA256 | ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5 |
| SHA512 | dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571 |
\ProgramData\mozglue.dll
| MD5 | c8fd9be83bc728cc04beffafc2907fe9 |
| SHA1 | 95ab9f701e0024cedfbd312bcfe4e726744c4f2e |
| SHA256 | ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a |
| SHA512 | fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040 |
memory/3160-495-0x0000000000400000-0x0000000000463000-memory.dmp