Analysis Overview
SHA256
2175a2cee5a73f3a5dc38b79d0b70726e6339ea03e6576f87690820ad3cdc207
Threat Level: Known bad
The file 2175a2cee5a73f3a5dc38b79d0b70726e6339ea03e6576f87690820ad3cdc207 was found to be: Known bad.
Malicious Activity Summary
Djvu Ransomware
Detected Djvu ransomware
Vidar
Executes dropped EXE
Downloads MZ/PE file
Modifies file permissions
Reads user/profile data of web browsers
Loads dropped DLL
Accesses 2FA software files, possible credential harvesting
Checks installed software on the system
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Looks up external IP address via web service
Suspicious use of SetThreadContext
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Delays execution with timeout.exe
Checks processor information in registry
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-12-01 01:38
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-12-01 01:38
Reported
2022-12-01 01:41
Platform
win10-20220812-en
Max time kernel
86s
Max time network
172s
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\4347532a-0348-4dbd-9639-3db7698b9ed1\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\4347532a-0348-4dbd-9639-3db7698b9ed1\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\4347532a-0348-4dbd-9639-3db7698b9ed1\build3.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\4347532a-0348-4dbd-9639-3db7698b9ed1\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\4347532a-0348-4dbd-9639-3db7698b9ed1\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-1-5-21-1099808672-3828198950-1535142148-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\968fac20-fda0-447d-a5d9-c6c252d17e95\\2175a2cee5a73f3a5dc38b79d0b70726e6339ea03e6576f87690820ad3cdc207.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\2175a2cee5a73f3a5dc38b79d0b70726e6339ea03e6576f87690820ad3cdc207.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 3872 set thread context of 5072 | N/A | C:\Users\Admin\AppData\Local\Temp\2175a2cee5a73f3a5dc38b79d0b70726e6339ea03e6576f87690820ad3cdc207.exe | C:\Users\Admin\AppData\Local\Temp\2175a2cee5a73f3a5dc38b79d0b70726e6339ea03e6576f87690820ad3cdc207.exe |
| PID 4360 set thread context of 4220 | N/A | C:\Users\Admin\AppData\Local\Temp\2175a2cee5a73f3a5dc38b79d0b70726e6339ea03e6576f87690820ad3cdc207.exe | C:\Users\Admin\AppData\Local\Temp\2175a2cee5a73f3a5dc38b79d0b70726e6339ea03e6576f87690820ad3cdc207.exe |
| PID 4760 set thread context of 524 | N/A | C:\Users\Admin\AppData\Local\4347532a-0348-4dbd-9639-3db7698b9ed1\build2.exe | C:\Users\Admin\AppData\Local\4347532a-0348-4dbd-9639-3db7698b9ed1\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\4347532a-0348-4dbd-9639-3db7698b9ed1\build2.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\4347532a-0348-4dbd-9639-3db7698b9ed1\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\2175a2cee5a73f3a5dc38b79d0b70726e6339ea03e6576f87690820ad3cdc207.exe
"C:\Users\Admin\AppData\Local\Temp\2175a2cee5a73f3a5dc38b79d0b70726e6339ea03e6576f87690820ad3cdc207.exe"
C:\Users\Admin\AppData\Local\Temp\2175a2cee5a73f3a5dc38b79d0b70726e6339ea03e6576f87690820ad3cdc207.exe
"C:\Users\Admin\AppData\Local\Temp\2175a2cee5a73f3a5dc38b79d0b70726e6339ea03e6576f87690820ad3cdc207.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\968fac20-fda0-447d-a5d9-c6c252d17e95" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\2175a2cee5a73f3a5dc38b79d0b70726e6339ea03e6576f87690820ad3cdc207.exe
"C:\Users\Admin\AppData\Local\Temp\2175a2cee5a73f3a5dc38b79d0b70726e6339ea03e6576f87690820ad3cdc207.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\2175a2cee5a73f3a5dc38b79d0b70726e6339ea03e6576f87690820ad3cdc207.exe
"C:\Users\Admin\AppData\Local\Temp\2175a2cee5a73f3a5dc38b79d0b70726e6339ea03e6576f87690820ad3cdc207.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\4347532a-0348-4dbd-9639-3db7698b9ed1\build2.exe
"C:\Users\Admin\AppData\Local\4347532a-0348-4dbd-9639-3db7698b9ed1\build2.exe"
C:\Users\Admin\AppData\Local\4347532a-0348-4dbd-9639-3db7698b9ed1\build2.exe
"C:\Users\Admin\AppData\Local\4347532a-0348-4dbd-9639-3db7698b9ed1\build2.exe"
C:\Users\Admin\AppData\Local\4347532a-0348-4dbd-9639-3db7698b9ed1\build3.exe
"C:\Users\Admin\AppData\Local\4347532a-0348-4dbd-9639-3db7698b9ed1\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\4347532a-0348-4dbd-9639-3db7698b9ed1\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 | 51.11.192.50:443 | tcp | |
| N/A | 8.8.8.8:53 | api.2ip.ua | udp |
| 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 | fresherlights.com | udp |
| N/A | 8.8.8.8:53 | uaery.top | udp |
| N/A | 190.140.74.43:80 | fresherlights.com | tcp |
| N/A | 46.195.100.42:80 | uaery.top | tcp |
| N/A | 190.140.74.43:80 | 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 | 116.203.0.170:80 | 116.203.0.170 | tcp |
| N/A | 93.184.220.29:80 | tcp |
Files
memory/3872-116-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/3872-117-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/3872-118-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/3872-119-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/3872-120-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/3872-121-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/3872-122-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/3872-123-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/3872-124-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/3872-125-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/3872-126-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/3872-127-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/3872-128-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/3872-129-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/3872-130-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/3872-131-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/3872-132-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/3872-133-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/3872-134-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/3872-135-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/3872-136-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/3872-138-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/3872-139-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/3872-140-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/3872-141-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/3872-142-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/3872-143-0x0000000000760000-0x00000000007FF000-memory.dmp
memory/3872-144-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/3872-145-0x00000000022A0000-0x00000000023BB000-memory.dmp
memory/3872-146-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-147-0x0000000000400000-0x0000000000537000-memory.dmp
memory/5072-148-0x0000000000424141-mapping.dmp
memory/5072-149-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-150-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-151-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-152-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-153-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-155-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-154-0x0000000000400000-0x0000000000537000-memory.dmp
memory/5072-156-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-157-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-158-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-159-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-160-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-161-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-163-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-162-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-164-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-165-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-166-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-167-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-169-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-168-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-170-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-171-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-172-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-173-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-174-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-175-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-176-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-177-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-178-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-179-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-180-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-181-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-182-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-183-0x00000000779A0000-0x0000000077B2E000-memory.dmp
memory/5072-198-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4672-204-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\968fac20-fda0-447d-a5d9-c6c252d17e95\2175a2cee5a73f3a5dc38b79d0b70726e6339ea03e6576f87690820ad3cdc207.exe
| MD5 | 11d46a22168dc69f4cb56293781b96f4 |
| SHA1 | 7a0e85e54feda8a4c98d757dd8bb6e62cdea6357 |
| SHA256 | 2175a2cee5a73f3a5dc38b79d0b70726e6339ea03e6576f87690820ad3cdc207 |
| SHA512 | 2118b3ca3e6a2904effd858a58ef2a95f0175696090bc91db58860dff597b982c456da6604913dc849dd02f662e9188d5661d3dca2ca7b0d24999738bd61ac89 |
memory/4360-230-0x0000000000000000-mapping.dmp
memory/5072-232-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4220-260-0x0000000000424141-mapping.dmp
memory/4220-307-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\4347532a-0348-4dbd-9639-3db7698b9ed1\build2.exe
| MD5 | b9212ded69fae1fa1fb5d6db46a9fb76 |
| SHA1 | 58face4245646b1cd379ee49f03a701eab1642be |
| SHA256 | 7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f |
| SHA512 | 09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342 |
memory/4760-349-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\4347532a-0348-4dbd-9639-3db7698b9ed1\build2.exe
| MD5 | b9212ded69fae1fa1fb5d6db46a9fb76 |
| SHA1 | 58face4245646b1cd379ee49f03a701eab1642be |
| SHA256 | 7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f |
| SHA512 | 09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342 |
memory/4760-382-0x00000000005B0000-0x00000000006FA000-memory.dmp
memory/524-384-0x00000000004231AC-mapping.dmp
C:\Users\Admin\AppData\Local\4347532a-0348-4dbd-9639-3db7698b9ed1\build2.exe
| MD5 | b9212ded69fae1fa1fb5d6db46a9fb76 |
| SHA1 | 58face4245646b1cd379ee49f03a701eab1642be |
| SHA256 | 7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f |
| SHA512 | 09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342 |
memory/4760-383-0x00000000005B0000-0x00000000006FA000-memory.dmp
memory/1368-388-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\4347532a-0348-4dbd-9639-3db7698b9ed1\build3.exe
| MD5 | 9ead10c08e72ae41921191f8db39bc16 |
| SHA1 | abe3bce01cd34afc88e2c838173f8c2bd0090ae1 |
| SHA256 | 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0 |
| SHA512 | aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a |
C:\Users\Admin\AppData\Local\4347532a-0348-4dbd-9639-3db7698b9ed1\build3.exe
| MD5 | 9ead10c08e72ae41921191f8db39bc16 |
| SHA1 | abe3bce01cd34afc88e2c838173f8c2bd0090ae1 |
| SHA256 | 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0 |
| SHA512 | aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a |
memory/524-422-0x0000000000400000-0x000000000045F000-memory.dmp
memory/4988-457-0x0000000000000000-mapping.dmp
\ProgramData\nss3.dll
| MD5 | 1cc453cdf74f31e4d913ff9c10acdde2 |
| SHA1 | 6e85eae544d6e965f15fa5c39700fa7202f3aafe |
| SHA256 | ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5 |
| SHA512 | dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571 |
\ProgramData\mozglue.dll
| MD5 | c8fd9be83bc728cc04beffafc2907fe9 |
| SHA1 | 95ab9f701e0024cedfbd312bcfe4e726744c4f2e |
| SHA256 | ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a |
| SHA512 | fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040 |
memory/4220-543-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3360-551-0x0000000000000000-mapping.dmp
memory/524-554-0x0000000000400000-0x000000000045F000-memory.dmp
memory/4048-558-0x0000000000000000-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/4708-614-0x0000000000000000-mapping.dmp