Analysis Overview
SHA256
17bed46aa95c958e6ad1908db25633d3cee12a8415cb360a25c97db6be75b87f
Threat Level: Known bad
The file 17bed46aa95c958e6ad1908db25633d3cee12a8415cb360a25c97db6be75b87f was found to be: Known bad.
Malicious Activity Summary
Djvu Ransomware
Detected Djvu ransomware
Vidar
Executes dropped EXE
Downloads MZ/PE file
Checks computer location settings
Modifies file permissions
Loads dropped DLL
Reads user/profile data of web browsers
Accesses 2FA software files, possible credential harvesting
Adds Run key to start application
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Looks up external IP address via web service
Suspicious use of SetThreadContext
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Checks processor information in registry
Creates scheduled task(s)
Delays execution with timeout.exe
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-11-30 08:25
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-11-30 08:25
Reported
2022-11-30 08:28
Platform
win10v2004-20220812-en
Max time kernel
151s
Max time network
155s
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\f924baf5-3721-407e-82d1-ab385aa8a602\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\f924baf5-3721-407e-82d1-ab385aa8a602\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\f924baf5-3721-407e-82d1-ab385aa8a602\build3.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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\17bed46aa95c958e6ad1908db25633d3cee12a8415cb360a25c97db6be75b87f.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\17bed46aa95c958e6ad1908db25633d3cee12a8415cb360a25c97db6be75b87f.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\f924baf5-3721-407e-82d1-ab385aa8a602\build2.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\f924baf5-3721-407e-82d1-ab385aa8a602\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\f924baf5-3721-407e-82d1-ab385aa8a602\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-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\a5a48e60-34af-4953-9cb3-12a1eb3a1b6b\\17bed46aa95c958e6ad1908db25633d3cee12a8415cb360a25c97db6be75b87f.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\17bed46aa95c958e6ad1908db25633d3cee12a8415cb360a25c97db6be75b87f.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 |
| 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 1272 set thread context of 1016 | N/A | C:\Users\Admin\AppData\Local\Temp\17bed46aa95c958e6ad1908db25633d3cee12a8415cb360a25c97db6be75b87f.exe | C:\Users\Admin\AppData\Local\Temp\17bed46aa95c958e6ad1908db25633d3cee12a8415cb360a25c97db6be75b87f.exe |
| PID 1856 set thread context of 3236 | N/A | C:\Users\Admin\AppData\Local\Temp\17bed46aa95c958e6ad1908db25633d3cee12a8415cb360a25c97db6be75b87f.exe | C:\Users\Admin\AppData\Local\Temp\17bed46aa95c958e6ad1908db25633d3cee12a8415cb360a25c97db6be75b87f.exe |
| PID 4432 set thread context of 1540 | N/A | C:\Users\Admin\AppData\Local\f924baf5-3721-407e-82d1-ab385aa8a602\build2.exe | C:\Users\Admin\AppData\Local\f924baf5-3721-407e-82d1-ab385aa8a602\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\f924baf5-3721-407e-82d1-ab385aa8a602\build2.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\f924baf5-3721-407e-82d1-ab385aa8a602\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\17bed46aa95c958e6ad1908db25633d3cee12a8415cb360a25c97db6be75b87f.exe
"C:\Users\Admin\AppData\Local\Temp\17bed46aa95c958e6ad1908db25633d3cee12a8415cb360a25c97db6be75b87f.exe"
C:\Users\Admin\AppData\Local\Temp\17bed46aa95c958e6ad1908db25633d3cee12a8415cb360a25c97db6be75b87f.exe
"C:\Users\Admin\AppData\Local\Temp\17bed46aa95c958e6ad1908db25633d3cee12a8415cb360a25c97db6be75b87f.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\a5a48e60-34af-4953-9cb3-12a1eb3a1b6b" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\17bed46aa95c958e6ad1908db25633d3cee12a8415cb360a25c97db6be75b87f.exe
"C:\Users\Admin\AppData\Local\Temp\17bed46aa95c958e6ad1908db25633d3cee12a8415cb360a25c97db6be75b87f.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\17bed46aa95c958e6ad1908db25633d3cee12a8415cb360a25c97db6be75b87f.exe
"C:\Users\Admin\AppData\Local\Temp\17bed46aa95c958e6ad1908db25633d3cee12a8415cb360a25c97db6be75b87f.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\f924baf5-3721-407e-82d1-ab385aa8a602\build2.exe
"C:\Users\Admin\AppData\Local\f924baf5-3721-407e-82d1-ab385aa8a602\build2.exe"
C:\Users\Admin\AppData\Local\f924baf5-3721-407e-82d1-ab385aa8a602\build2.exe
"C:\Users\Admin\AppData\Local\f924baf5-3721-407e-82d1-ab385aa8a602\build2.exe"
C:\Users\Admin\AppData\Local\f924baf5-3721-407e-82d1-ab385aa8a602\build3.exe
"C:\Users\Admin\AppData\Local\f924baf5-3721-407e-82d1-ab385aa8a602\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:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\f924baf5-3721-407e-82d1-ab385aa8a602\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 | 8.253.208.113:80 | tcp | |
| N/A | 8.238.20.254:80 | tcp | |
| N/A | 8.8.8.8:53 | api.2ip.ua | udp |
| N/A | 162.0.217.254:443 | api.2ip.ua | tcp |
| N/A | 8.253.208.113:80 | tcp | |
| N/A | 93.184.220.29:80 | tcp | |
| N/A | 93.184.221.240:80 | tcp | |
| N/A | 93.184.221.240:80 | tcp | |
| N/A | 8.238.20.254:80 | tcp | |
| N/A | 72.21.81.240:80 | tcp | |
| N/A | 52.242.97.97:443 | tcp | |
| N/A | 20.42.65.84:443 | tcp | |
| N/A | 8.8.8.8:53 | crl.comodoca.com | udp |
| N/A | 104.18.32.68:80 | crl.comodoca.com | tcp |
| N/A | 72.21.91.29:80 | tcp | |
| N/A | 172.64.155.188:80 | crl.comodoca.com | tcp |
| N/A | 8.238.20.254:80 | tcp | |
| N/A | 8.8.8.8:53 | 164.2.77.40.in-addr.arpa | udp |
| N/A | 8.253.208.113:80 | tcp | |
| N/A | 8.253.208.113:80 | tcp | |
| N/A | 8.8.8.8:53 | crl.usertrust.com | udp |
| N/A | 104.18.32.68:80 | crl.usertrust.com | tcp |
| N/A | 104.18.32.68:80 | crl.usertrust.com | tcp |
| N/A | 162.0.217.254:443 | api.2ip.ua | tcp |
| N/A | 172.64.155.188:80 | crl.usertrust.com | tcp |
| 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 | api.2ip.ua | udp |
| 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 | fresherlights.com | udp |
| N/A | 116.121.62.237:80 | uaery.top | tcp |
| N/A | 211.59.14.90:80 | fresherlights.com | tcp |
| N/A | 211.59.14.90:80 | fresherlights.com | tcp |
| N/A | 8.8.8.8:53 | t.me | udp |
| N/A | 149.154.167.99:443 | t.me | tcp |
| N/A | 88.198.94.71:80 | 88.198.94.71 | tcp |
Files
memory/1016-132-0x0000000000000000-mapping.dmp
memory/1016-133-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1272-135-0x0000000002154000-0x00000000021E5000-memory.dmp
memory/1016-134-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1272-136-0x00000000022A0000-0x00000000023BB000-memory.dmp
memory/1016-137-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1016-138-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3828-139-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\a5a48e60-34af-4953-9cb3-12a1eb3a1b6b\17bed46aa95c958e6ad1908db25633d3cee12a8415cb360a25c97db6be75b87f.exe
| MD5 | 4e6d4f865e894fac6c3eb21962e221eb |
| SHA1 | 9329d809914a22261b2300ad564b4b2d079fb62e |
| SHA256 | 17bed46aa95c958e6ad1908db25633d3cee12a8415cb360a25c97db6be75b87f |
| SHA512 | 46c909a6ee81fca1449bcd93a8716fb69de558520ae986c458cf36873fa21ef57f538f33df160d64d2c37503d40c8e15bf521a510a4a7d9f284bddc85ea13291 |
memory/1856-141-0x0000000000000000-mapping.dmp
memory/1016-142-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3236-143-0x0000000000000000-mapping.dmp
memory/3236-146-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3236-147-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1856-145-0x0000000002037000-0x00000000020C8000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
| MD5 | 916c512d221c683beeea9d5cb311b0b0 |
| SHA1 | bf0db4b1c4566275b629efb095b6ff8857b5748e |
| SHA256 | 64a36c1637d0a111152002a2c0385b0df9dd81b616b3f2073fbbe3f2975aa4d8 |
| SHA512 | af32cffea722438e9b17b08062dc2e209edc5417418964ead0b392bd502e1a647a8456b2ee2ea59faf69f93d0c6ea6f15949b6c30924db7da65b91cb18e8dc6c |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
| MD5 | ee808d52db7ff569b84f29541f71d071 |
| SHA1 | 66bdcb84c4d297668c812cd64b3368a999b8b606 |
| SHA256 | 3455060b7888c57c6b935d9532210008dc8cb1a4fbc20caf7b37203e8c6620c9 |
| SHA512 | 8d25c394b8a5dbd01174a499e679f00044eab7f02ff48ffbb7f1630d6438374b86c8417a2f0e20ae87c3e1dbdde1e37bb4796399790837c961eed70bbfe05490 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
| MD5 | 87f83c054bb0d1411fb552ffaf26cb16 |
| SHA1 | 30c735465835d8a80a4b798968de6caa74a50125 |
| SHA256 | 486fc3b6f05e952c74d2cbeb67ec6b06aedd02b840ba3f5a6dfe17ca12f1545a |
| SHA512 | 6730cbf1674fed0476d468cbbb8e4750dcb538ffd4ef059d571f221d32ac94c9ac9740b8ee9b33f5bc3010ccf49bed620de959dd078d5449c2d8492854385b04 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
| MD5 | 76e7d5bf61b2e80d159f88aa9798ce91 |
| SHA1 | 32a46de50c9c02b068e39cf49b78c7e2d5ace20d |
| SHA256 | 280fd6ae3ad21323199759814c4dd82329eb8f9847ed1fa2be145e83b4c88bf3 |
| SHA512 | 5efd8c64ac40ae006d2ce4509eb9e5f1448fb1156e914d303e8bc4dcfe1d94c57c7eae216b362877e7b644876656cc9e5c4cebfc905bab3f8b09cb1a051d69c4 |
memory/3236-153-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4432-154-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\f924baf5-3721-407e-82d1-ab385aa8a602\build2.exe
| MD5 | b9212ded69fae1fa1fb5d6db46a9fb76 |
| SHA1 | 58face4245646b1cd379ee49f03a701eab1642be |
| SHA256 | 7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f |
| SHA512 | 09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342 |
C:\Users\Admin\AppData\Local\f924baf5-3721-407e-82d1-ab385aa8a602\build2.exe
| MD5 | b9212ded69fae1fa1fb5d6db46a9fb76 |
| SHA1 | 58face4245646b1cd379ee49f03a701eab1642be |
| SHA256 | 7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f |
| SHA512 | 09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342 |
memory/1540-157-0x0000000000000000-mapping.dmp
memory/1540-158-0x0000000000400000-0x000000000045F000-memory.dmp
C:\Users\Admin\AppData\Local\f924baf5-3721-407e-82d1-ab385aa8a602\build2.exe
| MD5 | b9212ded69fae1fa1fb5d6db46a9fb76 |
| SHA1 | 58face4245646b1cd379ee49f03a701eab1642be |
| SHA256 | 7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f |
| SHA512 | 09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342 |
memory/4432-161-0x000000000051D000-0x000000000054A000-memory.dmp
memory/1540-162-0x0000000000400000-0x000000000045F000-memory.dmp
memory/4432-163-0x0000000002070000-0x00000000020BB000-memory.dmp
memory/1540-160-0x0000000000400000-0x000000000045F000-memory.dmp
memory/1540-164-0x0000000000400000-0x000000000045F000-memory.dmp
memory/4452-165-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\f924baf5-3721-407e-82d1-ab385aa8a602\build3.exe
| MD5 | 9ead10c08e72ae41921191f8db39bc16 |
| SHA1 | abe3bce01cd34afc88e2c838173f8c2bd0090ae1 |
| SHA256 | 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0 |
| SHA512 | aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a |
C:\Users\Admin\AppData\Local\f924baf5-3721-407e-82d1-ab385aa8a602\build3.exe
| MD5 | 9ead10c08e72ae41921191f8db39bc16 |
| SHA1 | abe3bce01cd34afc88e2c838173f8c2bd0090ae1 |
| SHA256 | 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0 |
| SHA512 | aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a |
memory/1148-168-0x0000000000000000-mapping.dmp
memory/3236-169-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1540-170-0x0000000061E00000-0x0000000061EF3000-memory.dmp
C:\ProgramData\nss3.dll
| MD5 | 1cc453cdf74f31e4d913ff9c10acdde2 |
| SHA1 | 6e85eae544d6e965f15fa5c39700fa7202f3aafe |
| SHA256 | ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5 |
| SHA512 | dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571 |
C:\ProgramData\mozglue.dll
| MD5 | c8fd9be83bc728cc04beffafc2907fe9 |
| SHA1 | 95ab9f701e0024cedfbd312bcfe4e726744c4f2e |
| SHA256 | ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a |
| SHA512 | fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040 |
memory/4440-190-0x0000000000000000-mapping.dmp
memory/1540-191-0x0000000000400000-0x000000000045F000-memory.dmp
memory/1472-192-0x0000000000000000-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/1316-195-0x0000000000000000-mapping.dmp