Analysis Overview
SHA256
9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651
Threat Level: Known bad
The file 9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651 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
Enumerates physical storage devices
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-16 02:25
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-16 02:25
Reported
2024-04-16 02:28
Platform
win10v2004-20240412-en
Max time kernel
147s
Max time network
154s
Command Line
Signatures
Detected Djvu ransomware
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Djvu Ransomware
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3198953144-1466794930-246379610-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.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-1-5-21-3198953144-1466794930-246379610-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\9297c677-de07-47c4-8c93-629a13a84af4\\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.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 2044 set thread context of 788 | N/A | C:\Users\Admin\AppData\Local\Temp\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.exe | C:\Users\Admin\AppData\Local\Temp\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.exe |
| PID 4908 set thread context of 4544 | N/A | C:\Users\Admin\AppData\Local\Temp\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.exe | C:\Users\Admin\AppData\Local\Temp\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.exe
"C:\Users\Admin\AppData\Local\Temp\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.exe"
C:\Users\Admin\AppData\Local\Temp\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.exe
"C:\Users\Admin\AppData\Local\Temp\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\9297c677-de07-47c4-8c93-629a13a84af4" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.exe
"C:\Users\Admin\AppData\Local\Temp\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.exe
"C:\Users\Admin\AppData\Local\Temp\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.exe" --Admin IsNotAutoStart IsNotTask
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 76.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| 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 | 21.114.53.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 220.139.67.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 3.180.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 172.67.139.220:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | sdfjhuz.com | udp |
| US | 8.8.8.8:53 | sajdfue.com | udp |
| LY | 102.218.198.12:80 | sajdfue.com | tcp |
| CO | 181.55.190.201:80 | sdfjhuz.com | tcp |
| LY | 102.218.198.12:80 | sajdfue.com | tcp |
| US | 8.8.8.8:53 | 12.198.218.102.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 201.190.55.181.in-addr.arpa | udp |
| LY | 102.218.198.12:80 | sajdfue.com | tcp |
| LY | 102.218.198.12:80 | sajdfue.com | tcp |
| LY | 102.218.198.12:80 | sajdfue.com | tcp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 29.243.111.52.in-addr.arpa | udp |
Files
memory/2044-1-0x0000000004B00000-0x0000000004B9C000-memory.dmp
memory/2044-2-0x0000000004BA0000-0x0000000004CBB000-memory.dmp
memory/788-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/788-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/788-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/788-6-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\9297c677-de07-47c4-8c93-629a13a84af4\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.exe
| MD5 | 6067c1f7658f5862dcce964ae8a9b049 |
| SHA1 | de1c58620017ed7f4c11b5cf00321aa203425b2f |
| SHA256 | 9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651 |
| SHA512 | 5c863b1977ac2e742638d96b9933222b475338b8f79501edd35fded93790ef4f8391896d70f1aa3197a317a3821c06f654af05804e01f23d47c1208a873cf138 |
memory/788-15-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4908-18-0x0000000004A30000-0x0000000004AC3000-memory.dmp
memory/4544-20-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4544-21-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4544-22-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | a796999c503d181cf67725ed32be3bfe |
| SHA1 | 61bed07e1ca6dd7325b65653307671f95cd943bc |
| SHA256 | 54a3267f8825a4819df16f5448a9829081f9030088a02fa981222b43ec0fb392 |
| SHA512 | 5856964f0d0b6624577ce69751eab308994ef106eaf1de54fa4544caf362f4fbb94f99ceb4f9865746d01a9edce3dcdd685ad3767d761bdbf591ab20ec88081e |
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 | eff8dce19955c6fb01ccfd0708a873ad |
| SHA1 | 7aec9eab87eadc8089697dfaa13ef53502f3e5d6 |
| SHA256 | 1887e6641c2edc0f74eff7a0541ad57bb8aa15cc3d45f33326c059bdfb126546 |
| SHA512 | da4d75a8958a653abdbdbf58b557069db4bec3311b72230439e4f180e78736ee5358efd7c0da75373b49bed30438cc65f5776f4935cffd17d2bdaa5fbc50ce21 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 6871b34be2256b7e34f1f01de14e0290 |
| SHA1 | b30a4c79500987d1d932dce9e6457b241263df73 |
| SHA256 | 9b9a7bfd8d11848c451dcadc2eea8fd5d14c9f76af5473f7cbc8648248649952 |
| SHA512 | 8ab70305f7a83dcb63bc2b609a345965e705e4c2be19ecaa5b5b4a648f21c7ea039d6c1a97b1b7d6322b79a925b19159322a9f83f13a07886fbec7500bb45c18 |
memory/4544-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4544-28-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4544-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4544-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4544-35-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4544-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4544-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4544-37-0x0000000000400000-0x0000000000537000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-16 02:25
Reported
2024-04-16 02:28
Platform
win11-20240412-en
Max time kernel
149s
Max time network
158s
Command Line
Signatures
Detected Djvu ransomware
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
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-1-5-21-243033537-3771492294-1461557691-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\0f63bfa3-f7b3-48cd-9836-665c8b5b173a\\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.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 1032 set thread context of 940 | N/A | C:\Users\Admin\AppData\Local\Temp\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.exe | C:\Users\Admin\AppData\Local\Temp\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.exe |
| PID 4704 set thread context of 2304 | N/A | C:\Users\Admin\AppData\Local\Temp\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.exe | C:\Users\Admin\AppData\Local\Temp\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.exe
"C:\Users\Admin\AppData\Local\Temp\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.exe"
C:\Users\Admin\AppData\Local\Temp\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.exe
"C:\Users\Admin\AppData\Local\Temp\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\0f63bfa3-f7b3-48cd-9836-665c8b5b173a" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.exe
"C:\Users\Admin\AppData\Local\Temp\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.exe
"C:\Users\Admin\AppData\Local\Temp\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.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 | 172.67.139.220:443 | api.2ip.ua | tcp |
| ZA | 169.1.51.101:80 | sajdfue.com | tcp |
| AR | 186.13.17.220:80 | sdfjhuz.com | tcp |
| ZA | 169.1.51.101:80 | sajdfue.com | tcp |
| ZA | 169.1.51.101:80 | sajdfue.com | tcp |
| ZA | 169.1.51.101:80 | sajdfue.com | tcp |
| ZA | 169.1.51.101:80 | sajdfue.com | tcp |
Files
memory/1032-1-0x0000000004C20000-0x0000000004CBD000-memory.dmp
memory/1032-2-0x0000000004CC0000-0x0000000004DDB000-memory.dmp
memory/940-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/940-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/940-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/940-6-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\0f63bfa3-f7b3-48cd-9836-665c8b5b173a\9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651.exe
| MD5 | 6067c1f7658f5862dcce964ae8a9b049 |
| SHA1 | de1c58620017ed7f4c11b5cf00321aa203425b2f |
| SHA256 | 9e539d4a2fd02d296f715429a74074fe98d363e0332a41de4e03bcb445d28651 |
| SHA512 | 5c863b1977ac2e742638d96b9933222b475338b8f79501edd35fded93790ef4f8391896d70f1aa3197a317a3821c06f654af05804e01f23d47c1208a873cf138 |
memory/940-17-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4704-21-0x0000000004AE0000-0x0000000004B74000-memory.dmp
memory/2304-22-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2304-23-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2304-24-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | a796999c503d181cf67725ed32be3bfe |
| SHA1 | 61bed07e1ca6dd7325b65653307671f95cd943bc |
| SHA256 | 54a3267f8825a4819df16f5448a9829081f9030088a02fa981222b43ec0fb392 |
| SHA512 | 5856964f0d0b6624577ce69751eab308994ef106eaf1de54fa4544caf362f4fbb94f99ceb4f9865746d01a9edce3dcdd685ad3767d761bdbf591ab20ec88081e |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | dd5f4bac57a7606f516313488ecef873 |
| SHA1 | 6b7851751edb738632d7eb5aaf6c7f909205da4b |
| SHA256 | 82aa3bd0e46e145590efbdc5916c42c0492f18022b71cba1c3d0470445619168 |
| SHA512 | 3e8d9f1f1d076c596cea8bc750c031a976d059cb007f81075b07ec8ec9c1560d6b8d1148be6638a367c720e537b175fdee481cc71502f3d6f4832ef6f6bc714d |
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 | a30642c639ac8507ccadc9c528d21cf3 |
| SHA1 | a1769303d52b21f6dd6eaec90438814fa9fb3d40 |
| SHA256 | be70ea33e19cdc215c2a02246aecea11251de83bb8b6e4d04eeac211b6c40840 |
| SHA512 | d010fc0c07dd1395bc39fbd2cb965223bd062555e9bb6d864ae7b99db593205815dfcad85093da3cd335153a52cabf113aa525b418b54a8fbb380aaf6f14b1f8 |
memory/2304-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2304-30-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2304-31-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2304-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2304-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2304-37-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2304-38-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2304-39-0x0000000000400000-0x0000000000537000-memory.dmp