Analysis Overview
SHA256
cd279e3337ba85a5802745ea67fd9388289ef899631cd97408355b8eda30c1d2
Threat Level: Known bad
The file cd279e3337ba85a5802745ea67fd9388289ef899631cd97408355b8eda30c1d2 was found to be: Known bad.
Malicious Activity Summary
Detected Djvu ransomware
Vidar
Djvu Ransomware
Downloads MZ/PE file
Executes dropped EXE
Reads user/profile data of web browsers
Checks computer location settings
Loads dropped DLL
Modifies file permissions
Looks up external IP address via web service
Checks installed software on the system
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
Checks processor information in registry
Delays execution with timeout.exe
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Creates scheduled task(s)
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-12-01 08:28
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-12-01 08:28
Reported
2022-12-01 08:30
Platform
win10v2004-20220812-en
Max time kernel
153s
Max time network
158s
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\9c65ea91-c68b-4d21-80e4-7976655e235c\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\9c65ea91-c68b-4d21-80e4-7976655e235c\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\9c65ea91-c68b-4d21-80e4-7976655e235c\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\cd279e3337ba85a5802745ea67fd9388289ef899631cd97408355b8eda30c1d2.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\cd279e3337ba85a5802745ea67fd9388289ef899631cd97408355b8eda30c1d2.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\9c65ea91-c68b-4d21-80e4-7976655e235c\build2.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\9c65ea91-c68b-4d21-80e4-7976655e235c\build2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\9c65ea91-c68b-4d21-80e4-7976655e235c\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\\1a430744-17c4-4eb5-be6e-0807a8afe447\\cd279e3337ba85a5802745ea67fd9388289ef899631cd97408355b8eda30c1d2.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\cd279e3337ba85a5802745ea67fd9388289ef899631cd97408355b8eda30c1d2.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 892 set thread context of 1936 | N/A | C:\Users\Admin\AppData\Local\Temp\cd279e3337ba85a5802745ea67fd9388289ef899631cd97408355b8eda30c1d2.exe | C:\Users\Admin\AppData\Local\Temp\cd279e3337ba85a5802745ea67fd9388289ef899631cd97408355b8eda30c1d2.exe |
| PID 4464 set thread context of 3988 | N/A | C:\Users\Admin\AppData\Local\Temp\cd279e3337ba85a5802745ea67fd9388289ef899631cd97408355b8eda30c1d2.exe | C:\Users\Admin\AppData\Local\Temp\cd279e3337ba85a5802745ea67fd9388289ef899631cd97408355b8eda30c1d2.exe |
| PID 4912 set thread context of 4840 | N/A | C:\Users\Admin\AppData\Local\9c65ea91-c68b-4d21-80e4-7976655e235c\build2.exe | C:\Users\Admin\AppData\Local\9c65ea91-c68b-4d21-80e4-7976655e235c\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\9c65ea91-c68b-4d21-80e4-7976655e235c\build2.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\9c65ea91-c68b-4d21-80e4-7976655e235c\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\cd279e3337ba85a5802745ea67fd9388289ef899631cd97408355b8eda30c1d2.exe
"C:\Users\Admin\AppData\Local\Temp\cd279e3337ba85a5802745ea67fd9388289ef899631cd97408355b8eda30c1d2.exe"
C:\Users\Admin\AppData\Local\Temp\cd279e3337ba85a5802745ea67fd9388289ef899631cd97408355b8eda30c1d2.exe
"C:\Users\Admin\AppData\Local\Temp\cd279e3337ba85a5802745ea67fd9388289ef899631cd97408355b8eda30c1d2.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\1a430744-17c4-4eb5-be6e-0807a8afe447" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\cd279e3337ba85a5802745ea67fd9388289ef899631cd97408355b8eda30c1d2.exe
"C:\Users\Admin\AppData\Local\Temp\cd279e3337ba85a5802745ea67fd9388289ef899631cd97408355b8eda30c1d2.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\cd279e3337ba85a5802745ea67fd9388289ef899631cd97408355b8eda30c1d2.exe
"C:\Users\Admin\AppData\Local\Temp\cd279e3337ba85a5802745ea67fd9388289ef899631cd97408355b8eda30c1d2.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\9c65ea91-c68b-4d21-80e4-7976655e235c\build2.exe
"C:\Users\Admin\AppData\Local\9c65ea91-c68b-4d21-80e4-7976655e235c\build2.exe"
C:\Users\Admin\AppData\Local\9c65ea91-c68b-4d21-80e4-7976655e235c\build2.exe
"C:\Users\Admin\AppData\Local\9c65ea91-c68b-4d21-80e4-7976655e235c\build2.exe"
C:\Users\Admin\AppData\Local\9c65ea91-c68b-4d21-80e4-7976655e235c\build3.exe
"C:\Users\Admin\AppData\Local\9c65ea91-c68b-4d21-80e4-7976655e235c\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\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"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\9c65ea91-c68b-4d21-80e4-7976655e235c\build2.exe" & exit
C:\Windows\SysWOW64\timeout.exe
timeout /t 6
Network
| Country | Destination | Domain | Proto |
| N/A | 209.197.3.8:80 | 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 | 209.197.3.8:80 | tcp | |
| N/A | 13.69.239.72:443 | 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 | fresherlights.com | udp |
| N/A | 109.102.255.230:80 | uaery.top | tcp |
| N/A | 8.8.8.8:53 | fresherlights.com | udp |
| N/A | 123.140.161.243:80 | fresherlights.com | tcp |
| N/A | 211.171.233.126:80 | uaery.top | tcp |
| N/A | 95.107.163.44:80 | fresherlights.com | tcp |
| N/A | 123.140.161.243:80 | 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 | 8.8.8.8:53 | crl.godaddy.com | udp |
| N/A | 192.124.249.31:80 | crl.godaddy.com | tcp |
| N/A | 116.203.0.170:80 | 116.203.0.170 | tcp |
| N/A | 192.124.249.36:80 | crl.godaddy.com | tcp |
Files
memory/892-132-0x0000000002236000-0x00000000022C8000-memory.dmp
memory/892-133-0x00000000022D0000-0x00000000023EB000-memory.dmp
memory/1936-134-0x0000000000000000-mapping.dmp
memory/1936-135-0x0000000000400000-0x0000000000537000-memory.dmp
memory/892-137-0x0000000002236000-0x00000000022C8000-memory.dmp
memory/1936-136-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1936-138-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1936-139-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4800-140-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\1a430744-17c4-4eb5-be6e-0807a8afe447\cd279e3337ba85a5802745ea67fd9388289ef899631cd97408355b8eda30c1d2.exe
| MD5 | a3edfa63fc85df0814ddc529b0257399 |
| SHA1 | 60481023332754c2b0bf8b599bebdf02e4b1daa6 |
| SHA256 | cd279e3337ba85a5802745ea67fd9388289ef899631cd97408355b8eda30c1d2 |
| SHA512 | f2d72072b2e7c4c02423309f386f27f7828475e55bb479c318fcdaad6ae39fc6b5dce9e7e273e74d10fdbc0b158698349ae30bd36c5950f2a607b0413cf7d27a |
memory/4464-142-0x0000000000000000-mapping.dmp
memory/1936-143-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3988-144-0x0000000000000000-mapping.dmp
memory/3988-147-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4464-146-0x00000000020E8000-0x000000000217A000-memory.dmp
memory/3988-148-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3988-149-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
| MD5 | 260d12dd54d4b8de7cad3bfd06727dde |
| SHA1 | 4e26af5b7e1948bddaa439dbbc0ced5f36840e66 |
| SHA256 | 5f50b63fb96ccafe0b77b33ae9cc2f7806f8fc75de9d947722be000dbfe4e706 |
| SHA512 | 42f69612f21a25f0db23aed4cb4c6650fe92a903efe5af03ed6d9bcd141662ca731f79e4e63c1d4b727b7ae767f44f235bc63c0428eb5d2c72024c9fdfbce149 |
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\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
| MD5 | 284262abf2b00e1acc982f321960b500 |
| SHA1 | 44acedb8af60b1a4b937c864af96ca24f90d06d6 |
| SHA256 | 7856088e2510f4ae38caf0cf841db6f13f944b7ff68cf794e92bb75c2468a289 |
| SHA512 | fa5f336c144ff7c7e989e4a94a9affa5bea710df18eeff825fdd4d2d7dff1037f34128b0d58b22ca87ae07fb483bd8d28be492494a1fdbd8377506c812da7a8d |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
| MD5 | 61ffe15234088bd43d27e9eb101ad1f6 |
| SHA1 | 80e8cf2dbbf66018e148cbab446cfc5e52eed1b2 |
| SHA256 | 1dc492a98f81cf0473e5ebc17c9284892b88c592b5194c31761a1ef1985c59b5 |
| SHA512 | f925dbd2d421bc596f344241ce915b69e8f9a5112f4b9d6e62c82a717493ce2422366395dea33dfce896704b940afd6366923a7a2eb476d10563bc76de15b61d |
memory/3988-154-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4912-155-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\9c65ea91-c68b-4d21-80e4-7976655e235c\build2.exe
| MD5 | b9212ded69fae1fa1fb5d6db46a9fb76 |
| SHA1 | 58face4245646b1cd379ee49f03a701eab1642be |
| SHA256 | 7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f |
| SHA512 | 09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342 |
C:\Users\Admin\AppData\Local\9c65ea91-c68b-4d21-80e4-7976655e235c\build2.exe
| MD5 | b9212ded69fae1fa1fb5d6db46a9fb76 |
| SHA1 | 58face4245646b1cd379ee49f03a701eab1642be |
| SHA256 | 7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f |
| SHA512 | 09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342 |
memory/4840-158-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\9c65ea91-c68b-4d21-80e4-7976655e235c\build2.exe
| MD5 | b9212ded69fae1fa1fb5d6db46a9fb76 |
| SHA1 | 58face4245646b1cd379ee49f03a701eab1642be |
| SHA256 | 7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f |
| SHA512 | 09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342 |
memory/4840-159-0x0000000000400000-0x000000000045F000-memory.dmp
memory/4840-162-0x0000000000400000-0x000000000045F000-memory.dmp
memory/4912-161-0x00000000006BD000-0x00000000006E9000-memory.dmp
memory/4912-164-0x0000000001F80000-0x0000000001FCB000-memory.dmp
memory/4840-163-0x0000000000400000-0x000000000045F000-memory.dmp
memory/4840-165-0x0000000000400000-0x000000000045F000-memory.dmp
C:\Users\Admin\AppData\Local\9c65ea91-c68b-4d21-80e4-7976655e235c\build3.exe
| MD5 | 9ead10c08e72ae41921191f8db39bc16 |
| SHA1 | abe3bce01cd34afc88e2c838173f8c2bd0090ae1 |
| SHA256 | 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0 |
| SHA512 | aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a |
memory/3632-166-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\9c65ea91-c68b-4d21-80e4-7976655e235c\build3.exe
| MD5 | 9ead10c08e72ae41921191f8db39bc16 |
| SHA1 | abe3bce01cd34afc88e2c838173f8c2bd0090ae1 |
| SHA256 | 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0 |
| SHA512 | aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a |
memory/4072-169-0x0000000000000000-mapping.dmp
memory/4840-170-0x0000000000400000-0x000000000045F000-memory.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/2836-173-0x0000000000000000-mapping.dmp
memory/4840-174-0x0000000061E00000-0x0000000061EF3000-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/1712-194-0x0000000000000000-mapping.dmp
memory/4840-195-0x0000000000400000-0x000000000045F000-memory.dmp
memory/1508-196-0x0000000000000000-mapping.dmp