Analysis Overview
SHA256
56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525
Threat Level: Known bad
The file 56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525 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 use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-15 19:21
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-15 19:21
Reported
2024-04-15 19:23
Platform
win10v2004-20240412-en
Max time kernel
143s
Max time network
130s
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-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.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-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\8d376c37-2cac-475a-a0b6-4652508c9ca7\\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.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 1776 set thread context of 2364 | N/A | C:\Users\Admin\AppData\Local\Temp\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.exe | C:\Users\Admin\AppData\Local\Temp\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.exe |
| PID 2704 set thread context of 4060 | N/A | C:\Users\Admin\AppData\Local\Temp\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.exe | C:\Users\Admin\AppData\Local\Temp\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.exe
"C:\Users\Admin\AppData\Local\Temp\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.exe"
C:\Users\Admin\AppData\Local\Temp\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.exe
"C:\Users\Admin\AppData\Local\Temp\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\8d376c37-2cac-475a-a0b6-4652508c9ca7" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.exe
"C:\Users\Admin\AppData\Local\Temp\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.exe
"C:\Users\Admin\AppData\Local\Temp\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.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 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 138.32.126.40.in-addr.arpa | udp |
| 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 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 24.65.21.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 3.180.250.142.in-addr.arpa | udp |
| US | 104.21.65.24:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | sdfjhuz.com | udp |
| US | 8.8.8.8:53 | sajdfue.com | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.114.53.23.in-addr.arpa | udp |
| CL | 190.13.174.91:80 | sdfjhuz.com | tcp |
| MX | 148.230.249.9:80 | sajdfue.com | tcp |
| MX | 148.230.249.9:80 | sajdfue.com | tcp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.249.230.148.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 91.174.13.190.in-addr.arpa | udp |
| MX | 148.230.249.9:80 | sajdfue.com | tcp |
| MX | 148.230.249.9:80 | sajdfue.com | tcp |
| MX | 148.230.249.9:80 | sajdfue.com | tcp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 131.83.221.88.in-addr.arpa | udp |
Files
memory/1776-1-0x00000000049D0000-0x0000000004A6F000-memory.dmp
memory/1776-2-0x0000000004A70000-0x0000000004B8B000-memory.dmp
memory/2364-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2364-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2364-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2364-6-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\8d376c37-2cac-475a-a0b6-4652508c9ca7\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.exe
| MD5 | b1e4c479c6bfc09e7af5e586b47a5215 |
| SHA1 | a5fed6e61786e5042ffcea44250078f0bab868c5 |
| SHA256 | 56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525 |
| SHA512 | f1a46d9d8e1485ea37d29ede20fc2c2c7a7765b27f69e8d366956ca5f675bf7f69d9e0e3f5fb2a2bdc72b16499323a8c3908e2416fc26d9b572fc1fa643227e2 |
memory/2364-15-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2704-18-0x00000000049E0000-0x0000000004A7C000-memory.dmp
memory/4060-21-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4060-20-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4060-22-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 73b54c0286039b6816bae576296dcde1 |
| SHA1 | 6469d4989412faa90f12e80d323b4ea3c5ef1805 |
| SHA256 | d941ce0d238c69b04519eaa36101f47f1247c64cd2f183159ddacd90670b7325 |
| SHA512 | c81f618aa327feea57578248a14d876a8ff7bd91dea7617b75ce443a9eacd68515bd5228c32ab6b43cccb13a27346035d09f77f85845234858e7af59a8bb869f |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 3c6a98dff2c8e5d41183fb934602bccf |
| SHA1 | 389eea4f6c8b9a19dd6efd65b2c979feeb4262a7 |
| SHA256 | 8c5e90026091280487ae42d5c0f266528cacb6de18c7f3d693ecfdb547b06ac8 |
| SHA512 | fde8e5de812641dc896e8d8182dcf4244670e431f3310aba576f0f330a9d8a4221eb7513005e9755512d0c645cbf164c4c5f8872689d2e52a58b3f39668de8fd |
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 | de9de9bc2d926d063f2698043c43715b |
| SHA1 | 6f2677e481ac4b1af9d9ff7e2131e6638bf8105a |
| SHA256 | 3473a45716e6c0a5d9582dff84a36d301f3d48c5db5f1d50e5ff5efdf701f25e |
| SHA512 | 935a89d78a1e6d39944bbf33d11d6529aa947b9df9b7b85fb59e141612e331c2e9c4bfc53f49621f02114499a9d191ecc98e5a6ed10eeb2c37d86aa82a607456 |
memory/4060-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4060-28-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4060-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4060-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4060-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4060-35-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4060-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4060-37-0x0000000000400000-0x0000000000537000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-15 19:21
Reported
2024-04-15 19:23
Platform
win11-20240412-en
Max time kernel
146s
Max time network
157s
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-1-5-21-1734202354-1504186683-2192872036-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\21208da0-5cf5-478a-856b-e2a4cb001de4\\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.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 496 set thread context of 1204 | N/A | C:\Users\Admin\AppData\Local\Temp\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.exe | C:\Users\Admin\AppData\Local\Temp\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.exe |
| PID 4384 set thread context of 3916 | N/A | C:\Users\Admin\AppData\Local\Temp\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.exe | C:\Users\Admin\AppData\Local\Temp\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.exe
"C:\Users\Admin\AppData\Local\Temp\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.exe"
C:\Users\Admin\AppData\Local\Temp\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.exe
"C:\Users\Admin\AppData\Local\Temp\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\21208da0-5cf5-478a-856b-e2a4cb001de4" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.exe
"C:\Users\Admin\AppData\Local\Temp\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.exe
"C:\Users\Admin\AppData\Local\Temp\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.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 | 172.67.139.220:443 | api.2ip.ua | tcp |
| MX | 187.143.46.11:80 | sajdfue.com | tcp |
| JM | 63.143.98.185:80 | sdfjhuz.com | tcp |
| MX | 187.143.46.11:80 | sajdfue.com | tcp |
| MX | 187.143.46.11:80 | sajdfue.com | tcp |
| MX | 187.143.46.11:80 | sajdfue.com | tcp |
| MX | 187.143.46.11:80 | sajdfue.com | tcp |
Files
memory/496-1-0x0000000004BF0000-0x0000000004C84000-memory.dmp
memory/496-2-0x0000000004C90000-0x0000000004DAB000-memory.dmp
memory/1204-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1204-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1204-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1204-6-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\21208da0-5cf5-478a-856b-e2a4cb001de4\56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525.exe
| MD5 | b1e4c479c6bfc09e7af5e586b47a5215 |
| SHA1 | a5fed6e61786e5042ffcea44250078f0bab868c5 |
| SHA256 | 56f554a175f5888a9bfb3cc17e3f010f2617f1e5d087601cc08781110e794525 |
| SHA512 | f1a46d9d8e1485ea37d29ede20fc2c2c7a7765b27f69e8d366956ca5f675bf7f69d9e0e3f5fb2a2bdc72b16499323a8c3908e2416fc26d9b572fc1fa643227e2 |
memory/1204-17-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4384-20-0x0000000004AB0000-0x0000000004B43000-memory.dmp
memory/3916-22-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3916-23-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3916-24-0x0000000000400000-0x0000000000537000-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 | 993dfecfbdc32b7a445dcb0e01cce568 |
| SHA1 | 6ecda68d263e956bdefbc7c278f72753072ed859 |
| SHA256 | ef1b6364a91ec68caf63a578865a0e0841ecc578748b6538ffc9a3b4f4553591 |
| SHA512 | aa093a77247c1af4a86da5dc07a664a25da3c446b26a721b60b5e9f36219a14a2a860a94728c6237488cb8e615d93e1631e2dc2efc3a2079795fafd07ca90e4b |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 3c6a98dff2c8e5d41183fb934602bccf |
| SHA1 | 389eea4f6c8b9a19dd6efd65b2c979feeb4262a7 |
| SHA256 | 8c5e90026091280487ae42d5c0f266528cacb6de18c7f3d693ecfdb547b06ac8 |
| SHA512 | fde8e5de812641dc896e8d8182dcf4244670e431f3310aba576f0f330a9d8a4221eb7513005e9755512d0c645cbf164c4c5f8872689d2e52a58b3f39668de8fd |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | f11dea827f922440f712d952a9cc0913 |
| SHA1 | 99997fdcce6b9ddc9de1a2e6d033264dbcca7a5a |
| SHA256 | 713dddaa567c1afb2ed49cdba976a0a85fe4479b4b11a296d12793f3afac8080 |
| SHA512 | d72a67f26c57be73da43f0e499ca88bc338a78de2fff5d4c9f0e5e961c15ff47aa33c04beab11dcc6c68c387179f539dbd04fd4642be8a9acdfcc1e8114f7520 |
memory/3916-30-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3916-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3916-31-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3916-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3916-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3916-37-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3916-38-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3916-39-0x0000000000400000-0x0000000000537000-memory.dmp