Analysis Overview
SHA256
c221933a5677a0e06b62d770538ffd02d731b2832befa648ba2dae2a763de375
Threat Level: Known bad
The file c221933a5677a0e06b62d770538ffd02d731b2832befa648ba2dae2a763de375 was found to be: Known bad.
Malicious Activity Summary
Detected Djvu ransomware
Djvu Ransomware
Vidar
Vidar Stealer
Executes dropped EXE
Downloads MZ/PE file
Loads dropped DLL
Reads user/profile data of web browsers
Modifies file permissions
Accesses 2FA software files, possible credential harvesting
Adds Run key to start application
Looks up external IP address via web service
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Suspicious use of SetThreadContext
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Checks processor information in registry
Modifies system certificate store
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-04-24 06:51
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-04-24 06:51
Reported
2022-04-24 06:53
Platform
win10-20220414-en
Max time kernel
100s
Max time network
127s
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\c97ab8de-7adb-4ac6-8f56-578b2747201a\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\c97ab8de-7adb-4ac6-8f56-578b2747201a\build2.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\c97ab8de-7adb-4ac6-8f56-578b2747201a\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\c97ab8de-7adb-4ac6-8f56-578b2747201a\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\\47c4131a-2c71-4c03-8310-2da975aa5759\\c221933a5677a0e06b62d770538ffd02d731b2832befa648ba2dae2a763de375.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\c221933a5677a0e06b62d770538ffd02d731b2832befa648ba2dae2a763de375.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 2700 set thread context of 528 | N/A | C:\Users\Admin\AppData\Local\Temp\c221933a5677a0e06b62d770538ffd02d731b2832befa648ba2dae2a763de375.exe | C:\Users\Admin\AppData\Local\Temp\c221933a5677a0e06b62d770538ffd02d731b2832befa648ba2dae2a763de375.exe |
| PID 2560 set thread context of 3636 | N/A | C:\Users\Admin\AppData\Local\Temp\c221933a5677a0e06b62d770538ffd02d731b2832befa648ba2dae2a763de375.exe | C:\Users\Admin\AppData\Local\Temp\c221933a5677a0e06b62d770538ffd02d731b2832befa648ba2dae2a763de375.exe |
| PID 3524 set thread context of 3720 | N/A | C:\Users\Admin\AppData\Local\c97ab8de-7adb-4ac6-8f56-578b2747201a\build2.exe | C:\Users\Admin\AppData\Local\c97ab8de-7adb-4ac6-8f56-578b2747201a\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\c97ab8de-7adb-4ac6-8f56-578b2747201a\build2.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\c97ab8de-7adb-4ac6-8f56-578b2747201a\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\c221933a5677a0e06b62d770538ffd02d731b2832befa648ba2dae2a763de375.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\c221933a5677a0e06b62d770538ffd02d731b2832befa648ba2dae2a763de375.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\c221933a5677a0e06b62d770538ffd02d731b2832befa648ba2dae2a763de375.exe
"C:\Users\Admin\AppData\Local\Temp\c221933a5677a0e06b62d770538ffd02d731b2832befa648ba2dae2a763de375.exe"
C:\Users\Admin\AppData\Local\Temp\c221933a5677a0e06b62d770538ffd02d731b2832befa648ba2dae2a763de375.exe
"C:\Users\Admin\AppData\Local\Temp\c221933a5677a0e06b62d770538ffd02d731b2832befa648ba2dae2a763de375.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\47c4131a-2c71-4c03-8310-2da975aa5759" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\c221933a5677a0e06b62d770538ffd02d731b2832befa648ba2dae2a763de375.exe
"C:\Users\Admin\AppData\Local\Temp\c221933a5677a0e06b62d770538ffd02d731b2832befa648ba2dae2a763de375.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\c221933a5677a0e06b62d770538ffd02d731b2832befa648ba2dae2a763de375.exe
"C:\Users\Admin\AppData\Local\Temp\c221933a5677a0e06b62d770538ffd02d731b2832befa648ba2dae2a763de375.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\c97ab8de-7adb-4ac6-8f56-578b2747201a\build2.exe
"C:\Users\Admin\AppData\Local\c97ab8de-7adb-4ac6-8f56-578b2747201a\build2.exe"
C:\Users\Admin\AppData\Local\c97ab8de-7adb-4ac6-8f56-578b2747201a\build2.exe
"C:\Users\Admin\AppData\Local\c97ab8de-7adb-4ac6-8f56-578b2747201a\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 |
| MX | 189.164.252.30:80 | fuyt.org | tcp |
| BR | 179.180.156.219:80 | zerit.top | tcp |
| MX | 189.164.252.30:80 | 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 | 20.189.173.1:443 | tcp | |
| NL | 178.79.208.1:80 | tcp | |
| DE | 116.202.1.195:80 | 116.202.1.195 | tcp |
Files
memory/2700-120-0x00000000009B0000-0x0000000000A4F000-memory.dmp
memory/2700-121-0x00000000023F0000-0x000000000250B000-memory.dmp
memory/528-122-0x0000000000400000-0x0000000000537000-memory.dmp
memory/528-123-0x0000000000424141-mapping.dmp
memory/528-124-0x0000000000400000-0x0000000000537000-memory.dmp
memory/528-125-0x0000000000400000-0x0000000000537000-memory.dmp
memory/528-126-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1272-127-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\47c4131a-2c71-4c03-8310-2da975aa5759\c221933a5677a0e06b62d770538ffd02d731b2832befa648ba2dae2a763de375.exe
| MD5 | 658caafcc0cdd24aac49f10ea9611d79 |
| SHA1 | c5923fe9406dff918465927191790bf5e3bf1371 |
| SHA256 | c221933a5677a0e06b62d770538ffd02d731b2832befa648ba2dae2a763de375 |
| SHA512 | 33346fde5888c2005f4cc269fc54567678c8be921357153443090adb8e07fef26f1d6a8086cdb4e6e2263584936ecb9784f6447c1a00dd967d0eef01d2bdafa0 |
memory/2560-129-0x0000000000000000-mapping.dmp
memory/2560-132-0x00000000021D0000-0x000000000226E000-memory.dmp
memory/3636-133-0x0000000000424141-mapping.dmp
memory/3636-134-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3636-135-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
| MD5 | bb719bf3bf51a00f57cebb66b93e11d3 |
| SHA1 | b0a4e1bf8f95cecbaa5b5f72f9388f84502fab96 |
| SHA256 | 6c2f70c130068ba5ab61278c26185e71c6015bbf6b09b5e70f609c150adacdd4 |
| SHA512 | 52206b003bb4eb5c9e8bc22b0b2087312141f8f4d27827192a59ec242aaa59a4402764627b07c9652c9dedaf5cbc05568c7f215c9957988648a2579aabf69ebc |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
| MD5 | d9c694c2d95c6812aa0be903de46da96 |
| SHA1 | df1a733a9c6c27997c798ae4c5715cabe1ffa5e4 |
| SHA256 | f6f85bc0d1770803a206fbfb83c4cb888b3a24b494feac38baa3ea764cda37c0 |
| SHA512 | 97a2eddf197aa74d1d05241008ead092f836b561bc1ad1d731d91db23d6dcce7a65d3dc1609384a3ad3fd5c858bae6c3a4361588b5a965ebf233f14410864793 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
| MD5 | 00121f47b1457ea82df7f73b56088eb1 |
| SHA1 | b5bf20d47954386e2ae7dbcd1598aa1e3007436c |
| SHA256 | a06807d961bfe0da7f6b92cea43d2ce1658c7d86950108c4a88da7bbc7b5203a |
| SHA512 | 83f9de03ac873aaf4f03c703c0d1d844636d5ea4e0995db576cde5a6310517ddc2aa834c9755d651b790ef90a99de181ad1dc8103448ee7ae236b608a387d08a |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
| MD5 | ad8e032271f02af2a955ce10661cc3a8 |
| SHA1 | 967d1bd99bea34c3110cc75c0c0d8b8565eae9f9 |
| SHA256 | d5081bf75d530e9336a6da0f9142bc10f4d06368c365cf0e33f7c99b0f643ce8 |
| SHA512 | bc69dfb03284cf1b8d172ff55938f238b928a0c7846306d8232ab697f54c771a9acf8b0e04a85e149da87ea8cfd9395605d0d95afc30eae1793e91399aa7eef7 |
memory/3636-140-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3524-141-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\c97ab8de-7adb-4ac6-8f56-578b2747201a\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
C:\Users\Admin\AppData\Local\c97ab8de-7adb-4ac6-8f56-578b2747201a\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
memory/3524-144-0x0000000000726000-0x0000000000750000-memory.dmp
memory/3720-146-0x000000000042118A-mapping.dmp
memory/3720-145-0x0000000000400000-0x000000000044C000-memory.dmp
C:\Users\Admin\AppData\Local\c97ab8de-7adb-4ac6-8f56-578b2747201a\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
memory/3524-149-0x0000000000726000-0x0000000000750000-memory.dmp
memory/3524-150-0x00000000020B0000-0x00000000020F9000-memory.dmp
memory/3720-148-0x0000000000400000-0x000000000044C000-memory.dmp
memory/3720-151-0x0000000000400000-0x000000000044C000-memory.dmp
memory/3720-152-0x0000000000400000-0x000000000044C000-memory.dmp
\ProgramData\nss3.dll
| MD5 | bfac4e3c5908856ba17d41edcd455a51 |
| SHA1 | 8eec7e888767aa9e4cca8ff246eb2aacb9170428 |
| SHA256 | e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78 |
| SHA512 | 2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66 |
\ProgramData\mozglue.dll
| MD5 | 8f73c08a9660691143661bf7332c3c27 |
| SHA1 | 37fa65dd737c50fda710fdbde89e51374d0c204a |
| SHA256 | 3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd |
| SHA512 | 0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89 |