Analysis Overview
SHA256
ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35
Threat Level: Known bad
The file ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35 was found to be: Known bad.
Malicious Activity Summary
Detected Djvu ransomware
Djvu Ransomware
Checks computer location settings
Modifies file permissions
Adds Run key to start application
Looks up external IP address via web service
Suspicious use of SetThreadContext
Unsigned PE
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-22 12:52
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-22 12:52
Reported
2024-05-22 12:54
Platform
win10v2004-20240508-en
Max time kernel
142s
Max time network
128s
Command Line
Signatures
Detected Djvu ransomware
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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Djvu Ransomware
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe | N/A |
Modifies file permissions
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\ef894ec3-4bd5-4bbe-a198-847e25555038\\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe | N/A |
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 2568 set thread context of 3876 | N/A | C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe | C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe |
| PID 3772 set thread context of 2084 | N/A | C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe | C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
"C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe"
C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
"C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\ef894ec3-4bd5-4bbe-a198-847e25555038" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
"C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
"C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe" --Admin IsNotAutoStart IsNotTask
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3440,i,11266875042087428226,16669718873272757238,262144 --variations-seed-version --mojo-platform-channel-handle=4084 /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | api.2ip.ua | udp |
| US | 188.114.96.2:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.96.114.188.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.169.217.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.159.190.20.in-addr.arpa | udp |
| US | 188.114.96.2:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | sdfjhuz.com | udp |
| US | 8.8.8.8:53 | cajgtus.com | udp |
| IR | 217.219.131.81:80 | cajgtus.com | tcp |
| MX | 187.134.55.166:80 | sdfjhuz.com | tcp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| IR | 217.219.131.81:80 | cajgtus.com | tcp |
| NL | 23.62.61.99:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 81.131.219.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 166.55.134.187.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 99.61.62.23.in-addr.arpa | udp |
| IR | 217.219.131.81:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| IR | 217.219.131.81:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| IR | 217.219.131.81:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
Files
memory/2568-1-0x0000000004920000-0x00000000049B7000-memory.dmp
memory/2568-2-0x0000000004A00000-0x0000000004B1B000-memory.dmp
memory/3876-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3876-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3876-6-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3876-5-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\ef894ec3-4bd5-4bbe-a198-847e25555038\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
| MD5 | 3b8a963e6b19ad273243a1a31c8daca5 |
| SHA1 | a1e84e3b6d68892d95427fb0d2602982b0ed3763 |
| SHA256 | ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35 |
| SHA512 | c7560121fa534a6945eca35a395e57683157ce2942e9bfebc69bad16013c2c864e3bf2b8f7b39a6dbdfa4a00d6d63cefbec785b6cdaa844123c97b44999f6561 |
memory/3876-17-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2084-20-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2084-22-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | 8202a1cd02e7d69597995cabbe881a12 |
| SHA1 | 8858d9d934b7aa9330ee73de6c476acf19929ff6 |
| SHA256 | 58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5 |
| SHA512 | 97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | df09d9f4a71a7a949e5be0aecd420ec1 |
| SHA1 | 2eef08b902c38c6481d76738f252216431cfdf36 |
| SHA256 | 33d1d1238799d8ec9257f449e7ea08827ad3b5df4237e767d5df8b433e0f8294 |
| SHA512 | e54d964b6a9be2f37acd47b7795c9dc1fb711d9078c406159f1048453f39127876e514ed3f3b1508fa7d43142f2aca4f79d2d1f3abc28ad69b89ad0016430f8d |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 6728aea2631b86a76c237508d8ba9b55 |
| SHA1 | 7a670f95cac088313f7558869162fe01c6dc0ec9 |
| SHA256 | e1dd7380c6df33cd5702b032e0e359029d3ef7630f06ceb42cfdc154fd0baf7b |
| SHA512 | 533080cd1ec40b8530cad5c9914e0a5156d225f7392283ed2607eda4f1db4a6930002274060ed9130a6f634222c2e15818e16a50579cfe7f5274d028d31212f5 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 7d3de5a292193702226d0d863ee59f71 |
| SHA1 | 1f32d6ce7d346a70e372a3b207c66c5fd38a9d6c |
| SHA256 | 3621bddbfef513a7e863c6a68d126b40873d89c19c1db3f367642116b0eb6146 |
| SHA512 | a186859759f809a5aaf528cc22ecc6da696212e9eeae492a917ef3758d95623991371c4461da9384eb9618b40b32350cb52f5fc7734206d17e6fc8ae7b2e8c1e |
memory/2084-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2084-28-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2084-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2084-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2084-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2084-35-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2084-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2084-37-0x0000000000400000-0x0000000000537000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-22 12:52
Reported
2024-05-22 12:54
Platform
win11-20240419-en
Max time kernel
143s
Max time network
126s
Command Line
Signatures
Detected Djvu ransomware
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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Djvu Ransomware
Modifies file permissions
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\525d689b-2da8-4a8a-b3f6-6eb7b61f15b8\\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe | N/A |
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 4644 set thread context of 3772 | N/A | C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe | C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe |
| PID 3376 set thread context of 244 | N/A | C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe | C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
"C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe"
C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
"C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\525d689b-2da8-4a8a-b3f6-6eb7b61f15b8" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
"C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
"C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe" --Admin IsNotAutoStart IsNotTask
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | api.2ip.ua | udp |
| US | 172.67.139.220:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | 220.139.67.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 82.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.169.217.172.in-addr.arpa | udp |
| US | 172.67.139.220:443 | api.2ip.ua | tcp |
| AR | 190.220.21.28:80 | cajgtus.com | tcp |
| KR | 211.202.224.10:80 | sdfjhuz.com | tcp |
| AR | 190.220.21.28:80 | cajgtus.com | tcp |
| AR | 190.220.21.28:80 | cajgtus.com | tcp |
| AR | 190.220.21.28:80 | cajgtus.com | tcp |
| AR | 190.220.21.28:80 | cajgtus.com | tcp |
Files
memory/3772-1-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4644-4-0x0000000004B50000-0x0000000004C6B000-memory.dmp
memory/3772-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3772-6-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3772-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4644-2-0x0000000004A90000-0x0000000004B23000-memory.dmp
C:\Users\Admin\AppData\Local\525d689b-2da8-4a8a-b3f6-6eb7b61f15b8\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
| MD5 | 3b8a963e6b19ad273243a1a31c8daca5 |
| SHA1 | a1e84e3b6d68892d95427fb0d2602982b0ed3763 |
| SHA256 | ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35 |
| SHA512 | c7560121fa534a6945eca35a395e57683157ce2942e9bfebc69bad16013c2c864e3bf2b8f7b39a6dbdfa4a00d6d63cefbec785b6cdaa844123c97b44999f6561 |
memory/3772-19-0x0000000000400000-0x0000000000537000-memory.dmp
memory/244-22-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | 2045d2c5f81d672f1d8b315193109961 |
| SHA1 | b2b494cb45dbc7895190d6193d7ab3c53b9b53b5 |
| SHA256 | d0067e894fc747589f9ebe45d752a683a186f5bdceca89217729186c86c248a0 |
| SHA512 | e912812158d7c77ad18bd0a178d317e50d57e63e880ccf67264c6dd0e9803eeeff0371d59806263d760deea3265fe604b944e6e5ae6c737359e5b11d9fb22d31 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | 8202a1cd02e7d69597995cabbe881a12 |
| SHA1 | 8858d9d934b7aa9330ee73de6c476acf19929ff6 |
| SHA256 | 58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5 |
| SHA512 | 97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 6728aea2631b86a76c237508d8ba9b55 |
| SHA1 | 7a670f95cac088313f7558869162fe01c6dc0ec9 |
| SHA256 | e1dd7380c6df33cd5702b032e0e359029d3ef7630f06ceb42cfdc154fd0baf7b |
| SHA512 | 533080cd1ec40b8530cad5c9914e0a5156d225f7392283ed2607eda4f1db4a6930002274060ed9130a6f634222c2e15818e16a50579cfe7f5274d028d31212f5 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 60f44c80825b67cd60f132b9dea9ea73 |
| SHA1 | 6f2a102b6356463ed58b65d8a9c224e69883811c |
| SHA256 | e48e917811f7cfb740ae8982cac2409325771f0c1389053d1a620f927ad906b9 |
| SHA512 | 62006d2709e10a4faab225993ef027f1ff3cad3dd3982d1c7165afd1903061cddd07dfda7102ba2fcf7811c0fed6a25ef11cbf7e849b5b4dc67b0815d78ed883 |
memory/244-28-0x0000000000400000-0x0000000000537000-memory.dmp
memory/244-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/244-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/244-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/244-35-0x0000000000400000-0x0000000000537000-memory.dmp
memory/244-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/244-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/244-37-0x0000000000400000-0x0000000000537000-memory.dmp