Analysis Overview
SHA256
373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502
Threat Level: Known bad
The file 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502 was found to be: Known bad.
Malicious Activity Summary
Vidar
Djvu Ransomware
Detected Djvu ransomware
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
Vidar Stealer
Downloads MZ/PE file
Executes dropped EXE
Modifies file permissions
Reads user/profile data of web browsers
Checks computer location settings
Loads dropped DLL
Checks installed software on the system
Looks up external IP address via web service
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Accesses 2FA software files, possible credential harvesting
Suspicious use of SetThreadContext
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Modifies system certificate store
Checks processor information in registry
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-04-24 13:47
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-04-24 13:47
Reported
2022-04-24 13:50
Platform
win10v2004-20220414-en
Max time kernel
98s
Max time network
141s
Command Line
Signatures
Detected Djvu ransomware
| Description | Indicator | Process | Target |
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Djvu Ransomware
Vidar
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
Vidar Stealer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| 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\dfab126f-2125-4e1d-ae14-f9fad2aeb2ff\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\dfab126f-2125-4e1d-ae14-f9fad2aeb2ff\build2.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\dfab126f-2125-4e1d-ae14-f9fad2aeb2ff\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\dfab126f-2125-4e1d-ae14-f9fad2aeb2ff\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-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\047438fe-ecfd-43b2-a240-793dd157176e\\373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.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 3116 set thread context of 3308 | N/A | C:\Users\Admin\AppData\Local\Temp\373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe | C:\Users\Admin\AppData\Local\Temp\373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe |
| PID 5036 set thread context of 3060 | N/A | C:\Users\Admin\AppData\Local\Temp\373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe | C:\Users\Admin\AppData\Local\Temp\373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe |
| PID 3192 set thread context of 4156 | N/A | C:\Users\Admin\AppData\Local\dfab126f-2125-4e1d-ae14-f9fad2aeb2ff\build2.exe | C:\Users\Admin\AppData\Local\dfab126f-2125-4e1d-ae14-f9fad2aeb2ff\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\dfab126f-2125-4e1d-ae14-f9fad2aeb2ff\build2.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\dfab126f-2125-4e1d-ae14-f9fad2aeb2ff\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\373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.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\373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe
"C:\Users\Admin\AppData\Local\Temp\373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe"
C:\Users\Admin\AppData\Local\Temp\373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe
"C:\Users\Admin\AppData\Local\Temp\373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\047438fe-ecfd-43b2-a240-793dd157176e" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe
"C:\Users\Admin\AppData\Local\Temp\373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe
"C:\Users\Admin\AppData\Local\Temp\373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\dfab126f-2125-4e1d-ae14-f9fad2aeb2ff\build2.exe
"C:\Users\Admin\AppData\Local\dfab126f-2125-4e1d-ae14-f9fad2aeb2ff\build2.exe"
C:\Users\Admin\AppData\Local\dfab126f-2125-4e1d-ae14-f9fad2aeb2ff\build2.exe
"C:\Users\Admin\AppData\Local\dfab126f-2125-4e1d-ae14-f9fad2aeb2ff\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 | 20.189.173.14:443 | tcp | |
| US | 8.8.8.8:53 | crl.usertrust.com | udp |
| US | 172.64.155.188:80 | crl.usertrust.com | tcp |
| US | 8.8.8.8:53 | zerit.top | udp |
| US | 8.8.8.8:53 | fuyt.org | udp |
| KR | 116.121.62.237:80 | fuyt.org | tcp |
| DO | 148.0.88.95:80 | zerit.top | tcp |
| US | 104.18.32.68:80 | crl.usertrust.com | tcp |
| US | 8.8.8.8:53 | 96.108.152.52.in-addr.arpa | udp |
| SA | 51.211.223.151:80 | fuyt.org | tcp |
| PA | 190.140.74.43:80 | zerit.top | tcp |
| SA | 51.211.223.151:80 | fuyt.org | tcp |
| NL | 104.110.191.140:80 | 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 |
Files
memory/3308-130-0x0000000000000000-mapping.dmp
memory/3308-131-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3116-133-0x0000000002195000-0x0000000002226000-memory.dmp
memory/3308-132-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3116-134-0x0000000002230000-0x000000000234B000-memory.dmp
memory/3308-135-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3308-136-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2116-137-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\047438fe-ecfd-43b2-a240-793dd157176e\373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502.exe
| MD5 | 258db065e78278e7f5bf235ee54e96c2 |
| SHA1 | c2aa27c506115868507707c971f43ae3313c9c11 |
| SHA256 | 373ec048b42907a0c5a80262e265c093effeb1a932d2efc507b5f9a2ac4c4502 |
| SHA512 | 163ddaaad60458aed9d747aff241a38ece5d262b55687c43afd14635aeeb34e7e594b4494f08c9c5efbe0466f3aecc43fa5e49ffbf77d22abb5000f525afa9c5 |
memory/5036-139-0x0000000000000000-mapping.dmp
memory/3060-140-0x0000000000000000-mapping.dmp
memory/3060-142-0x0000000000400000-0x0000000000537000-memory.dmp
memory/5036-143-0x00000000009E1000-0x0000000000A72000-memory.dmp
memory/3060-144-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3060-145-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3192-146-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\dfab126f-2125-4e1d-ae14-f9fad2aeb2ff\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
C:\Users\Admin\AppData\Local\dfab126f-2125-4e1d-ae14-f9fad2aeb2ff\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
memory/3192-149-0x0000000000809000-0x0000000000833000-memory.dmp
memory/4156-150-0x0000000000000000-mapping.dmp
memory/4156-151-0x0000000000400000-0x000000000044C000-memory.dmp
C:\Users\Admin\AppData\Local\dfab126f-2125-4e1d-ae14-f9fad2aeb2ff\build2.exe
| MD5 | ad1b502b6714c0a374b055332018974b |
| SHA1 | 672f4e44475177ddcb1bfa73db3c5dee0f031bc2 |
| SHA256 | f2cfbc265125aca3cbf385120f7489e8044f444976ba43ee3a19e706257c9e95 |
| SHA512 | 0197d74e6eb9fa11d48e6939dbd091c6896908870a59fef1d40830e43caf2539fd03ac933d47eae4c3b0ec74e2bfb0ece7f44c4a525b075fe4235ca6086c355e |
memory/4156-154-0x0000000000400000-0x000000000044C000-memory.dmp
memory/3192-153-0x0000000000809000-0x0000000000833000-memory.dmp
memory/4156-156-0x0000000000400000-0x000000000044C000-memory.dmp
memory/3192-155-0x0000000002090000-0x00000000020D9000-memory.dmp
memory/4156-157-0x0000000000400000-0x000000000044C000-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 |