Analysis Overview
SHA256
5edcdd9d58d5d7537c9b2bb19fcc4878e181bbf19ef1da1212d61b2f15baafc6
Threat Level: Known bad
The file 5edcdd9d58d5d7537c9b2bb19fcc4878e181bbf19ef1da1212d61b2f15baafc6 was found to be: Known bad.
Malicious Activity Summary
Djvu Ransomware
Vidar
Detected Djvu ransomware
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
Looks up external IP address via web service
Accesses 2FA software files, possible credential harvesting
Checks installed software on the system
Adds Run key to start application
Suspicious use of SetThreadContext
Enumerates physical storage devices
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Delays execution with timeout.exe
Checks processor information in registry
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2023-01-07 21:00
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2023-01-07 21:00
Reported
2023-01-07 21:03
Platform
win10v2004-20221111-en
Max time kernel
72s
Max time network
129s
Command Line
Signatures
Detected Djvu ransomware
| Description | Indicator | Process | Target |
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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\9cb42bf8-3997-4312-a763-996896d776da\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\9cb42bf8-3997-4312-a763-996896d776da\build3.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\9cb42bf8-3997-4312-a763-996896d776da\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\9cb42bf8-3997-4312-a763-996896d776da\build2.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\5edcdd9d58d5d7537c9b2bb19fcc4878e181bbf19ef1da1212d61b2f15baafc6.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\5edcdd9d58d5d7537c9b2bb19fcc4878e181bbf19ef1da1212d61b2f15baafc6.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\9cb42bf8-3997-4312-a763-996896d776da\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\9cb42bf8-3997-4312-a763-996896d776da\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-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\cb6874ad-d8b2-4c71-8c11-4c25f5ef9f4f\\5edcdd9d58d5d7537c9b2bb19fcc4878e181bbf19ef1da1212d61b2f15baafc6.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\5edcdd9d58d5d7537c9b2bb19fcc4878e181bbf19ef1da1212d61b2f15baafc6.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 4584 set thread context of 3912 | N/A | C:\Users\Admin\AppData\Local\Temp\5edcdd9d58d5d7537c9b2bb19fcc4878e181bbf19ef1da1212d61b2f15baafc6.exe | C:\Users\Admin\AppData\Local\Temp\5edcdd9d58d5d7537c9b2bb19fcc4878e181bbf19ef1da1212d61b2f15baafc6.exe |
| PID 1872 set thread context of 2848 | N/A | C:\Users\Admin\AppData\Local\Temp\5edcdd9d58d5d7537c9b2bb19fcc4878e181bbf19ef1da1212d61b2f15baafc6.exe | C:\Users\Admin\AppData\Local\Temp\5edcdd9d58d5d7537c9b2bb19fcc4878e181bbf19ef1da1212d61b2f15baafc6.exe |
| PID 4292 set thread context of 3068 | N/A | C:\Users\Admin\AppData\Local\9cb42bf8-3997-4312-a763-996896d776da\build2.exe | C:\Users\Admin\AppData\Local\9cb42bf8-3997-4312-a763-996896d776da\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\9cb42bf8-3997-4312-a763-996896d776da\build2.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\9cb42bf8-3997-4312-a763-996896d776da\build2.exe | N/A |
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\timeout.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\5edcdd9d58d5d7537c9b2bb19fcc4878e181bbf19ef1da1212d61b2f15baafc6.exe
"C:\Users\Admin\AppData\Local\Temp\5edcdd9d58d5d7537c9b2bb19fcc4878e181bbf19ef1da1212d61b2f15baafc6.exe"
C:\Users\Admin\AppData\Local\Temp\5edcdd9d58d5d7537c9b2bb19fcc4878e181bbf19ef1da1212d61b2f15baafc6.exe
"C:\Users\Admin\AppData\Local\Temp\5edcdd9d58d5d7537c9b2bb19fcc4878e181bbf19ef1da1212d61b2f15baafc6.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\cb6874ad-d8b2-4c71-8c11-4c25f5ef9f4f" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\5edcdd9d58d5d7537c9b2bb19fcc4878e181bbf19ef1da1212d61b2f15baafc6.exe
"C:\Users\Admin\AppData\Local\Temp\5edcdd9d58d5d7537c9b2bb19fcc4878e181bbf19ef1da1212d61b2f15baafc6.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\5edcdd9d58d5d7537c9b2bb19fcc4878e181bbf19ef1da1212d61b2f15baafc6.exe
"C:\Users\Admin\AppData\Local\Temp\5edcdd9d58d5d7537c9b2bb19fcc4878e181bbf19ef1da1212d61b2f15baafc6.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\9cb42bf8-3997-4312-a763-996896d776da\build2.exe
"C:\Users\Admin\AppData\Local\9cb42bf8-3997-4312-a763-996896d776da\build2.exe"
C:\Users\Admin\AppData\Local\9cb42bf8-3997-4312-a763-996896d776da\build3.exe
"C:\Users\Admin\AppData\Local\9cb42bf8-3997-4312-a763-996896d776da\build3.exe"
C:\Windows\SysWOW64\schtasks.exe
/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
C:\Users\Admin\AppData\Local\9cb42bf8-3997-4312-a763-996896d776da\build2.exe
"C:\Users\Admin\AppData\Local\9cb42bf8-3997-4312-a763-996896d776da\build2.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\9cb42bf8-3997-4312-a763-996896d776da\build2.exe" & exit
C:\Windows\SysWOW64\timeout.exe
timeout /t 6
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Windows\SysWOW64\schtasks.exe
/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
Network
| Country | Destination | Domain | Proto |
| N/A | 8.8.8.8:53 | api.2ip.ua | udp |
| N/A | 162.0.217.254:443 | api.2ip.ua | tcp |
| N/A | 162.0.217.254:443 | api.2ip.ua | tcp |
| N/A | 8.8.8.8:53 | uaery.top | udp |
| N/A | 8.8.8.8:53 | spaceris.com | udp |
| N/A | 222.236.49.124:80 | uaery.top | tcp |
| N/A | 222.236.49.123:80 | spaceris.com | tcp |
| N/A | 222.236.49.123:80 | spaceris.com | tcp |
| N/A | 8.8.8.8:53 | t.me | udp |
| N/A | 149.154.167.99:443 | t.me | tcp |
| N/A | 94.130.190.48:80 | 94.130.190.48 | tcp |
| N/A | 20.50.73.10:443 | tcp | |
| N/A | 104.80.225.205:443 | tcp |
Files
memory/3912-132-0x0000000000000000-mapping.dmp
memory/3912-133-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4584-135-0x0000000004D4D000-0x0000000004DDF000-memory.dmp
memory/4584-136-0x0000000004DE0000-0x0000000004EFB000-memory.dmp
memory/3912-137-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3912-134-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3912-138-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2100-139-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\cb6874ad-d8b2-4c71-8c11-4c25f5ef9f4f\5edcdd9d58d5d7537c9b2bb19fcc4878e181bbf19ef1da1212d61b2f15baafc6.exe
| MD5 | b048fdcacd3b012c7e16766ee15367bd |
| SHA1 | 74517d902669fa788f5a7177f44b6cdcbf09fd81 |
| SHA256 | 5edcdd9d58d5d7537c9b2bb19fcc4878e181bbf19ef1da1212d61b2f15baafc6 |
| SHA512 | 608d3cc0a31f9356695e6de8462f6c75b43e2f4caa8b70fea41e2b34516a92ffb8a4d4b6535d867c563528469d1a556560a87dc782db02391f28fe3c21ad0e87 |
memory/1872-141-0x0000000000000000-mapping.dmp
memory/3912-142-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2848-143-0x0000000000000000-mapping.dmp
memory/1872-146-0x0000000004C95000-0x0000000004D27000-memory.dmp
memory/2848-145-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2848-147-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
| MD5 | 411cd537dcecbf901759b8e6c1bdb076 |
| SHA1 | 655df9870867a1760ad1a2c967b330c61767437a |
| SHA256 | aa9e441c6cf813efd9ba76fe4ae52d884a5c7d222ed221903c42f09bc14eb7db |
| SHA512 | ea780f875c86f8694f67d236a0af066b952862356edb681375e6c387103a91ce085345359f8fe83dd630d310ee6b7637512e5868951c4c257daa411ab9c03e71 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
| MD5 | e642e1fd2cfa94c96ea3a2ad684f6d15 |
| SHA1 | 3b176ff398e327abd0eddc2e77ee53b464faaadb |
| SHA256 | d4e2c0409bad888ab7bf370a928605ec6b5540499f736cead3c2ff3b78577b1e |
| SHA512 | df55e9b21085c5cb893c0b271103e8967ff40859671b8a5c5d0740e8c33a396dd7c1b276359c6a0632ab8781e323886cca8b6fd7328dbbe609aeac9ae2b34c0d |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
| MD5 | 7c56401cb6bd1ae402e06f0fe35f81c4 |
| SHA1 | b82bbb9fa39266796cafcd308ef4300fc92e3399 |
| SHA256 | 0c58c7bc18d38a3096da6f3575f1c6f8d79b69382d8e89bb5fca917d3cdb7f65 |
| SHA512 | 2ea607c2dc04c8ef34ecb4c4bd297e0f0882b179303565863d1745172322133b78186fa04334e82c135e25fd717719ceec917f49682a4eac37034ea87bb2b6f3 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
| MD5 | 8b76e3a6e09b06cecd83321048e02186 |
| SHA1 | 8d41ebbed8a9da002c3833f76f899ff0e36a746c |
| SHA256 | ebd490f7f3c702eb0093f47d76eaa3217bfcb2b15bef95046b9b322a5c5936ba |
| SHA512 | d1da84460fe6e8783782e48c4c408e28e93692de756f4bf81983eaa39c74efdd913d88d6b9d7dd9db236a2958dd46debe6a13112ad1bade99ee62f00e9707c64 |
memory/2848-152-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4292-153-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\9cb42bf8-3997-4312-a763-996896d776da\build2.exe
| MD5 | 8c14bb1505244971374a88f37a4ec22a |
| SHA1 | cebd478fd7ca3956c983fb3e33e2cbb7c54fa4d0 |
| SHA256 | f333289bf29805ee697908ecb974aeb81206b471252ec2e51f382d53ac35d962 |
| SHA512 | 5e08686f2cbc783716442004d39ee11a4fabec7aaa92f33f758df7861ed0730c211551ecb85dd9dc93c2b83983fc4df08bcfeeb38c9e51bd3dcd138b10cf103e |
C:\Users\Admin\AppData\Local\9cb42bf8-3997-4312-a763-996896d776da\build2.exe
| MD5 | 8c14bb1505244971374a88f37a4ec22a |
| SHA1 | cebd478fd7ca3956c983fb3e33e2cbb7c54fa4d0 |
| SHA256 | f333289bf29805ee697908ecb974aeb81206b471252ec2e51f382d53ac35d962 |
| SHA512 | 5e08686f2cbc783716442004d39ee11a4fabec7aaa92f33f758df7861ed0730c211551ecb85dd9dc93c2b83983fc4df08bcfeeb38c9e51bd3dcd138b10cf103e |
C:\Users\Admin\AppData\Local\9cb42bf8-3997-4312-a763-996896d776da\build3.exe
| MD5 | 9ead10c08e72ae41921191f8db39bc16 |
| SHA1 | abe3bce01cd34afc88e2c838173f8c2bd0090ae1 |
| SHA256 | 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0 |
| SHA512 | aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a |
memory/1372-156-0x0000000000000000-mapping.dmp
memory/2684-159-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\9cb42bf8-3997-4312-a763-996896d776da\build3.exe
| MD5 | 9ead10c08e72ae41921191f8db39bc16 |
| SHA1 | abe3bce01cd34afc88e2c838173f8c2bd0090ae1 |
| SHA256 | 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0 |
| SHA512 | aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a |
memory/3068-160-0x0000000000000000-mapping.dmp
memory/3068-161-0x0000000000400000-0x0000000000460000-memory.dmp
memory/3068-163-0x0000000000400000-0x0000000000460000-memory.dmp
C:\Users\Admin\AppData\Local\9cb42bf8-3997-4312-a763-996896d776da\build2.exe
| MD5 | 8c14bb1505244971374a88f37a4ec22a |
| SHA1 | cebd478fd7ca3956c983fb3e33e2cbb7c54fa4d0 |
| SHA256 | f333289bf29805ee697908ecb974aeb81206b471252ec2e51f382d53ac35d962 |
| SHA512 | 5e08686f2cbc783716442004d39ee11a4fabec7aaa92f33f758df7861ed0730c211551ecb85dd9dc93c2b83983fc4df08bcfeeb38c9e51bd3dcd138b10cf103e |
memory/4292-165-0x00000000005C8000-0x00000000005F6000-memory.dmp
memory/3068-164-0x0000000000400000-0x0000000000460000-memory.dmp
memory/4292-166-0x00000000020C0000-0x000000000210C000-memory.dmp
memory/3068-167-0x0000000000400000-0x0000000000460000-memory.dmp
memory/2848-168-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3068-169-0x00000000509B0000-0x0000000050A42000-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 |
memory/3068-190-0x0000000000400000-0x0000000000460000-memory.dmp
memory/4244-191-0x0000000000000000-mapping.dmp
memory/3068-192-0x0000000000400000-0x0000000000460000-memory.dmp
memory/1040-193-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
| MD5 | 9ead10c08e72ae41921191f8db39bc16 |
| SHA1 | abe3bce01cd34afc88e2c838173f8c2bd0090ae1 |
| SHA256 | 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0 |
| SHA512 | aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a |
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
| MD5 | 9ead10c08e72ae41921191f8db39bc16 |
| SHA1 | abe3bce01cd34afc88e2c838173f8c2bd0090ae1 |
| SHA256 | 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0 |
| SHA512 | aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a |
memory/3408-196-0x0000000000000000-mapping.dmp