Analysis Overview
SHA256
d4ad02cface44c6e708711b1a7e6e4dba205358cc15be264255c0f562e97be0d
Threat Level: Known bad
The file d4ad02cface44c6e708711b1a7e6e4dba205358cc15be264255c0f562e97be0d was found to be: Known bad.
Malicious Activity Summary
Detected Djvu ransomware
Vidar
Djvu Ransomware
Downloads MZ/PE file
Executes dropped EXE
Modifies file permissions
Loads dropped DLL
Reads user/profile data of web browsers
Checks computer location settings
Accesses 2FA software files, possible credential harvesting
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
Suspicious use of SetThreadContext
Enumerates physical storage devices
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Checks processor information in registry
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-11-30 04:05
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-11-30 04:05
Reported
2022-11-30 04:07
Platform
win10v2004-20220812-en
Max time kernel
142s
Max time network
147s
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\3a631a09-a4e4-4798-96a4-d58882c4b808\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\3a631a09-a4e4-4798-96a4-d58882c4b808\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\3a631a09-a4e4-4798-96a4-d58882c4b808\build3.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\d4ad02cface44c6e708711b1a7e6e4dba205358cc15be264255c0f562e97be0d.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\d4ad02cface44c6e708711b1a7e6e4dba205358cc15be264255c0f562e97be0d.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\3a631a09-a4e4-4798-96a4-d58882c4b808\build2.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\3a631a09-a4e4-4798-96a4-d58882c4b808\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\3a631a09-a4e4-4798-96a4-d58882c4b808\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\\fd233f63-42a2-4622-abdd-9a5910156200\\d4ad02cface44c6e708711b1a7e6e4dba205358cc15be264255c0f562e97be0d.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\d4ad02cface44c6e708711b1a7e6e4dba205358cc15be264255c0f562e97be0d.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 |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2040 set thread context of 376 | N/A | C:\Users\Admin\AppData\Local\Temp\d4ad02cface44c6e708711b1a7e6e4dba205358cc15be264255c0f562e97be0d.exe | C:\Users\Admin\AppData\Local\Temp\d4ad02cface44c6e708711b1a7e6e4dba205358cc15be264255c0f562e97be0d.exe |
| PID 4472 set thread context of 3424 | N/A | C:\Users\Admin\AppData\Local\Temp\d4ad02cface44c6e708711b1a7e6e4dba205358cc15be264255c0f562e97be0d.exe | C:\Users\Admin\AppData\Local\Temp\d4ad02cface44c6e708711b1a7e6e4dba205358cc15be264255c0f562e97be0d.exe |
| PID 3808 set thread context of 3892 | N/A | C:\Users\Admin\AppData\Local\3a631a09-a4e4-4798-96a4-d58882c4b808\build2.exe | C:\Users\Admin\AppData\Local\3a631a09-a4e4-4798-96a4-d58882c4b808\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\3a631a09-a4e4-4798-96a4-d58882c4b808\build2.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\3a631a09-a4e4-4798-96a4-d58882c4b808\build2.exe | N/A |
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| 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\d4ad02cface44c6e708711b1a7e6e4dba205358cc15be264255c0f562e97be0d.exe
"C:\Users\Admin\AppData\Local\Temp\d4ad02cface44c6e708711b1a7e6e4dba205358cc15be264255c0f562e97be0d.exe"
C:\Users\Admin\AppData\Local\Temp\d4ad02cface44c6e708711b1a7e6e4dba205358cc15be264255c0f562e97be0d.exe
"C:\Users\Admin\AppData\Local\Temp\d4ad02cface44c6e708711b1a7e6e4dba205358cc15be264255c0f562e97be0d.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\fd233f63-42a2-4622-abdd-9a5910156200" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\d4ad02cface44c6e708711b1a7e6e4dba205358cc15be264255c0f562e97be0d.exe
"C:\Users\Admin\AppData\Local\Temp\d4ad02cface44c6e708711b1a7e6e4dba205358cc15be264255c0f562e97be0d.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\d4ad02cface44c6e708711b1a7e6e4dba205358cc15be264255c0f562e97be0d.exe
"C:\Users\Admin\AppData\Local\Temp\d4ad02cface44c6e708711b1a7e6e4dba205358cc15be264255c0f562e97be0d.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\3a631a09-a4e4-4798-96a4-d58882c4b808\build2.exe
"C:\Users\Admin\AppData\Local\3a631a09-a4e4-4798-96a4-d58882c4b808\build2.exe"
C:\Users\Admin\AppData\Local\3a631a09-a4e4-4798-96a4-d58882c4b808\build2.exe
"C:\Users\Admin\AppData\Local\3a631a09-a4e4-4798-96a4-d58882c4b808\build2.exe"
C:\Users\Admin\AppData\Local\3a631a09-a4e4-4798-96a4-d58882c4b808\build3.exe
"C:\Users\Admin\AppData\Local\3a631a09-a4e4-4798-96a4-d58882c4b808\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\3a631a09-a4e4-4798-96a4-d58882c4b808\build2.exe" & exit
C:\Windows\SysWOW64\timeout.exe
timeout /t 6
Network
| Country | Destination | Domain | Proto |
| N/A | 93.184.221.240:80 | 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 | 93.184.220.29:80 | tcp | |
| N/A | 93.184.220.29:80 | tcp | |
| N/A | 52.182.143.210:443 | 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 | 172.64.155.188:80 | crl.usertrust.com | tcp |
| N/A | 162.0.217.254:443 | api.2ip.ua | tcp |
| N/A | 20.190.160.17:443 | tcp | |
| N/A | 8.8.8.8:53 | uaery.top | udp |
| N/A | 8.8.8.8:53 | fresherlights.com | udp |
| N/A | 58.235.189.192:80 | uaery.top | tcp |
| N/A | 201.124.230.1:80 | fresherlights.com | tcp |
| N/A | 211.119.84.112:80 | fresherlights.com | tcp |
| N/A | 201.124.230.1:80 | 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/376-132-0x0000000000000000-mapping.dmp
memory/376-133-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2040-135-0x000000000215F000-0x00000000021F0000-memory.dmp
memory/376-134-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2040-136-0x0000000002280000-0x000000000239B000-memory.dmp
memory/376-137-0x0000000000400000-0x0000000000537000-memory.dmp
memory/376-138-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1400-139-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\fd233f63-42a2-4622-abdd-9a5910156200\d4ad02cface44c6e708711b1a7e6e4dba205358cc15be264255c0f562e97be0d.exe
| MD5 | 8f1ffbd841ae305c5297476d38aeabf3 |
| SHA1 | ef06b7fc7740d78662fda0b9e2b7179a4a8ac782 |
| SHA256 | d4ad02cface44c6e708711b1a7e6e4dba205358cc15be264255c0f562e97be0d |
| SHA512 | dda1f2ec523e640fcbb54e160bf2c0044bec6a2225cae315ec399e18c33a2732d285dc12ebcc32a99a151a2b7139ed8c92f7ec8d42862dbeab8fdaed46f783df |
memory/4472-141-0x0000000000000000-mapping.dmp
memory/376-142-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3424-143-0x0000000000000000-mapping.dmp
memory/3424-145-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4472-146-0x0000000002136000-0x00000000021C7000-memory.dmp
memory/3424-147-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3424-148-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3808-149-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\3a631a09-a4e4-4798-96a4-d58882c4b808\build2.exe
| MD5 | b9212ded69fae1fa1fb5d6db46a9fb76 |
| SHA1 | 58face4245646b1cd379ee49f03a701eab1642be |
| SHA256 | 7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f |
| SHA512 | 09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342 |
C:\Users\Admin\AppData\Local\3a631a09-a4e4-4798-96a4-d58882c4b808\build2.exe
| MD5 | b9212ded69fae1fa1fb5d6db46a9fb76 |
| SHA1 | 58face4245646b1cd379ee49f03a701eab1642be |
| SHA256 | 7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f |
| SHA512 | 09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342 |
memory/3892-152-0x0000000000000000-mapping.dmp
memory/3892-153-0x0000000000400000-0x000000000045F000-memory.dmp
memory/3892-155-0x0000000000400000-0x000000000045F000-memory.dmp
memory/3892-156-0x0000000000400000-0x000000000045F000-memory.dmp
C:\Users\Admin\AppData\Local\3a631a09-a4e4-4798-96a4-d58882c4b808\build2.exe
| MD5 | b9212ded69fae1fa1fb5d6db46a9fb76 |
| SHA1 | 58face4245646b1cd379ee49f03a701eab1642be |
| SHA256 | 7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f |
| SHA512 | 09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342 |
memory/3808-158-0x00000000005C0000-0x000000000060B000-memory.dmp
memory/3808-157-0x000000000076D000-0x0000000000799000-memory.dmp
memory/3568-159-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\3a631a09-a4e4-4798-96a4-d58882c4b808\build3.exe
| MD5 | 9ead10c08e72ae41921191f8db39bc16 |
| SHA1 | abe3bce01cd34afc88e2c838173f8c2bd0090ae1 |
| SHA256 | 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0 |
| SHA512 | aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a |
C:\Users\Admin\AppData\Local\3a631a09-a4e4-4798-96a4-d58882c4b808\build3.exe
| MD5 | 9ead10c08e72ae41921191f8db39bc16 |
| SHA1 | abe3bce01cd34afc88e2c838173f8c2bd0090ae1 |
| SHA256 | 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0 |
| SHA512 | aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a |
memory/3428-162-0x0000000000000000-mapping.dmp
memory/3892-163-0x0000000000400000-0x000000000045F000-memory.dmp
memory/3892-164-0x0000000061E00000-0x0000000061EF3000-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/5032-184-0x0000000000000000-mapping.dmp
memory/3892-185-0x0000000000400000-0x000000000045F000-memory.dmp
memory/856-186-0x0000000000000000-mapping.dmp