Analysis Overview
SHA256
076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea
Threat Level: Known bad
The file 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea was found to be: Known bad.
Malicious Activity Summary
Djvu Ransomware
Detected Djvu ransomware
Modifies file permissions
Checks computer location settings
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
2024-05-22 07:22
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-22 07:22
Reported
2024-05-22 07:25
Platform
win11-20240508-en
Max time kernel
146s
Max time network
152s
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-1-5-21-3001105534-2705918504-2956618779-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\a12f0297-dc30-493c-98ef-9c3b9cc87de1\\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.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 4108 set thread context of 4560 | N/A | C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe | C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe |
| PID 4512 set thread context of 2140 | N/A | C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe | C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe
"C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe"
C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe
"C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\a12f0297-dc30-493c-98ef-9c3b9cc87de1" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe
"C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe
"C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe" --Admin IsNotAutoStart IsNotTask
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | api.2ip.ua | udp |
| US | 104.21.65.24:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 4.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.169.217.172.in-addr.arpa | udp |
| US | 104.21.65.24:443 | api.2ip.ua | tcp |
| MX | 187.199.150.21:80 | cajgtus.com | tcp |
| MX | 201.119.122.3:80 | sdfjhuz.com | tcp |
| MX | 187.199.150.21:80 | cajgtus.com | tcp |
| MX | 187.199.150.21:80 | cajgtus.com | tcp |
| MX | 187.199.150.21:80 | cajgtus.com | tcp |
| MX | 187.199.150.21:80 | cajgtus.com | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
Files
memory/4108-1-0x0000000004A10000-0x0000000004AAB000-memory.dmp
memory/4108-2-0x0000000004BA0000-0x0000000004CBB000-memory.dmp
memory/4560-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4560-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4560-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4560-6-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\a12f0297-dc30-493c-98ef-9c3b9cc87de1\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe
| MD5 | 7830d0fbdc9b0db1b23c974ebb7ed843 |
| SHA1 | 5c7421146117885f5b0a340c68ff13186e10661a |
| SHA256 | 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea |
| SHA512 | 47def04f9f69c9003671a29be8efae5c581fa66c0f4a03f152113cefb336f64dcc24946dc31b95abd687a38403bdf274541cc0b2c1eaf6de3541423d3030adba |
memory/4560-19-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2140-22-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 195fc28150bef9b30510eed36fb325af |
| SHA1 | 1ea8a314d8af1d431b77d5280d1782e9a8e867c6 |
| SHA256 | 5c2e51ccf5767f80257a0a0bb66dee40957e5379431e15a118e7f1343ad1f6e0 |
| SHA512 | 537da7e46d8b5afc796c1908042088c583c5380fb729f3665845fe36286b3efeaec9fa26475e9c2263f55b1eca04bd7ae26088a9a85950b2b7f750fd24eadcfc |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 60902468d13929d598346330a2d1f55a |
| SHA1 | e75cbb6c4fc90aa77f21fd3289078115c8df9d3b |
| SHA256 | 01b7946d986c1b0cc8090006c3077ee15e941c13ef9ec56e4fc6abf90bdca1d3 |
| SHA512 | e94dadd92b59db6edd875df4ba3a9758ba1de284c0f7e198d00be424a842b5362b12b493f613455ec9280b749795fa40e16e3ca49a5d3ada5d6b080eaf167c09 |
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 | aedeadfe4862139e6c9447a70e7d55b0 |
| SHA1 | 2226b5369f19670eeb1920dc1d1f087dec346663 |
| SHA256 | 4ed7768238599a5bf697cc5554a16c251303b96db0c75ad42b42a8c7bc7e86ab |
| SHA512 | 3f57e62991596d47192fdeebb3af8cd487ca6821c3eee46c03e648fadce9ed1ffd092e5852e52cf69dea1070b386c4b75a7ef71ac6cda48775e1748ba8d984d8 |
memory/2140-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2140-28-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2140-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2140-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2140-35-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2140-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2140-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2140-37-0x0000000000400000-0x0000000000537000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-22 07:22
Reported
2024-05-22 07:25
Platform
win10v2004-20240508-en
Max time kernel
144s
Max time network
122s
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-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.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-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\282f3652-88c5-4524-af70-41d7fbee49f2\\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.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 4752 set thread context of 4344 | N/A | C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe | C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe |
| PID 5020 set thread context of 2896 | N/A | C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe | C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe
"C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe"
C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe
"C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\282f3652-88c5-4524-af70-41d7fbee49f2" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe
"C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe
"C:\Users\Admin\AppData\Local\Temp\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.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 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 220.139.67.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.169.217.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.32.126.40.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 | cajgtus.com | udp |
| KR | 220.82.134.210:80 | cajgtus.com | tcp |
| CO | 190.147.128.172:80 | sdfjhuz.com | tcp |
| KR | 220.82.134.210:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 172.128.147.190.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 210.134.82.220.in-addr.arpa | udp |
| KR | 220.82.134.210:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| KR | 220.82.134.210:80 | cajgtus.com | tcp |
| KR | 220.82.134.210:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.236.111.52.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 | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| NL | 23.62.61.72:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 72.61.62.23.in-addr.arpa | udp |
Files
memory/4752-1-0x00000000049A0000-0x0000000004A37000-memory.dmp
memory/4752-2-0x0000000004A90000-0x0000000004BAB000-memory.dmp
memory/4344-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4344-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4344-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4344-6-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\282f3652-88c5-4524-af70-41d7fbee49f2\076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea.exe
| MD5 | 7830d0fbdc9b0db1b23c974ebb7ed843 |
| SHA1 | 5c7421146117885f5b0a340c68ff13186e10661a |
| SHA256 | 076e064030e4ce341cba136045c03f79508afc9779635f68a6a9b48dea30ceea |
| SHA512 | 47def04f9f69c9003671a29be8efae5c581fa66c0f4a03f152113cefb336f64dcc24946dc31b95abd687a38403bdf274541cc0b2c1eaf6de3541423d3030adba |
memory/4344-17-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2896-20-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 45e68e0e7a284376f228ec8ed4c6bb22 |
| SHA1 | 33ed2f577c401babc28d8efa4bc264c49793868e |
| SHA256 | 5237ce4a48c12a1efe18bbd03673270a67ff775d30b557782c78dde4eb534524 |
| SHA512 | cc279dcb0089ea1a24f36cac9164b53d5cf8f35088ac701022ec785fd85b1e8c0e14c560f349bb1d30936f96436cff179b56c2e953e2fd917887673a01a268d4 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 195fc28150bef9b30510eed36fb325af |
| SHA1 | 1ea8a314d8af1d431b77d5280d1782e9a8e867c6 |
| SHA256 | 5c2e51ccf5767f80257a0a0bb66dee40957e5379431e15a118e7f1343ad1f6e0 |
| SHA512 | 537da7e46d8b5afc796c1908042088c583c5380fb729f3665845fe36286b3efeaec9fa26475e9c2263f55b1eca04bd7ae26088a9a85950b2b7f750fd24eadcfc |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | 2a35df2a26cb957c1f554a92fb342d42 |
| SHA1 | beb16f414119718363cd9bfcaae8d0ce359911bb |
| SHA256 | a6f38578bf438ab6b0e064bd5a134c4b3cae5703e54d864af6f5f630989ba211 |
| SHA512 | a528f29f6b0fa4690dc5ea71caa3f91ae001eee3da6ce4b29c7611e4e3f4674f569e7a8d3b5c54a84a8b4466761d417b4db26f87edba086a43c35a3efbc5e812 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | 8202a1cd02e7d69597995cabbe881a12 |
| SHA1 | 8858d9d934b7aa9330ee73de6c476acf19929ff6 |
| SHA256 | 58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5 |
| SHA512 | 97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9 |
memory/2896-25-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2896-26-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2896-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2896-30-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2896-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2896-33-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2896-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2896-35-0x0000000000400000-0x0000000000537000-memory.dmp