Analysis Overview
SHA256
ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea
Threat Level: Known bad
The file ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea was found to be: Known bad.
Malicious Activity Summary
Djvu Ransomware
Detected Djvu ransomware
Modifies file permissions
Checks computer location settings
Looks up external IP address via web service
Adds Run key to start application
Suspicious use of SetThreadContext
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-22 05:01
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-22 05:01
Reported
2024-05-22 05:04
Platform
win11-20240508-en
Max time kernel
143s
Max time network
124s
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-1-5-21-3107365284-1576850094-161165143-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\f52ddfc3-99cd-4a49-ad72-d58b0bce7c4e\\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.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 2988 set thread context of 2984 | N/A | C:\Users\Admin\AppData\Local\Temp\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.exe | C:\Users\Admin\AppData\Local\Temp\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.exe |
| PID 2104 set thread context of 1180 | N/A | C:\Users\Admin\AppData\Local\Temp\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.exe | C:\Users\Admin\AppData\Local\Temp\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.exe
"C:\Users\Admin\AppData\Local\Temp\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.exe"
C:\Users\Admin\AppData\Local\Temp\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.exe
"C:\Users\Admin\AppData\Local\Temp\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\f52ddfc3-99cd-4a49-ad72-d58b0bce7c4e" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.exe
"C:\Users\Admin\AppData\Local\Temp\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.exe
"C:\Users\Admin\AppData\Local\Temp\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.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 | 67.169.217.172.in-addr.arpa | udp |
| US | 172.67.139.220:443 | api.2ip.ua | tcp |
| BR | 191.186.138.218:80 | sdfjhuz.com | tcp |
| CO | 190.147.2.86:80 | cajgtus.com | tcp |
| CO | 190.147.2.86:80 | cajgtus.com | tcp |
| CO | 190.147.2.86:80 | cajgtus.com | tcp |
| CO | 190.147.2.86:80 | cajgtus.com | tcp |
| CO | 190.147.2.86:80 | cajgtus.com | tcp |
| US | 52.111.229.43:443 | tcp |
Files
memory/2988-1-0x0000000004B40000-0x0000000004BDD000-memory.dmp
memory/2988-2-0x0000000004BE0000-0x0000000004CFB000-memory.dmp
memory/2984-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2984-6-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2984-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2984-3-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\f52ddfc3-99cd-4a49-ad72-d58b0bce7c4e\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.exe
| MD5 | 967be9af9f69700577c315c55b878f49 |
| SHA1 | 67a95ed7f485a44aee16acc3ed99e817e8b9be66 |
| SHA256 | ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea |
| SHA512 | 4ce1f72258d3072237588601666514ad5774a8bc11ff8b774f2a6e38b6bb23a71efd39ab7d700c498bf583eba15d238b415e17c62bb579de75aaef39eef183dd |
memory/2984-19-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1180-22-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | f3a585ec62bd97f4098a7498a9e1291d |
| SHA1 | d083569ea5d376ecff31f2518cb3a0f8a5c2c3b2 |
| SHA256 | 0caa95ed957e76584e72ac689ec9b12bbf27acad7ce80035975b75fcbacbe22d |
| SHA512 | d2d23c0101041459e31403568a35fd75db3eded561f158088be2c15416feb3595ee4f7e2bbbdb8b7375e318ffe714a34dcc8e768db40e265b8c60da20553ac41 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | cb35bd9d6c5a4fd50a9263018bbd9784 |
| SHA1 | efec24f93d2af7bd01969c36870ebc928fa6c790 |
| SHA256 | be648ee93df285417e494e28c01e3ab8f3d043845f4d3b397dfd137d187ed612 |
| SHA512 | ac26182fb167458da4b465b118720470859e8028db8d3d71ddbe0c5be0e46b9178c5f7ccb8b1252c38754e27da1af546f8d2f6e32e1bfcbeac0d510aa831bf11 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | a3862dfca80cfda4dacd1480e2cc3f8f |
| SHA1 | b7c457f0e8d5b1c6acbb54bc6c470b061d2ae3d9 |
| SHA256 | 91b4d9577668b332f69d33b68f2fc12ebddea4f5b8a48c565ca3b1fd30339048 |
| SHA512 | ea8d631e690e6ff2bc92cd77a43d4c8e92e16803fcef174bf19816895122d6a3d1541661648e67fd3573b9256d2c98c75efe31275a9854b29185b9c2c14cc8db |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
| MD5 | 8202a1cd02e7d69597995cabbe881a12 |
| SHA1 | 8858d9d934b7aa9330ee73de6c476acf19929ff6 |
| SHA256 | 58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5 |
| SHA512 | 97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9 |
memory/1180-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1180-28-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1180-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1180-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1180-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1180-35-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1180-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1180-37-0x0000000000400000-0x0000000000537000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-22 05:01
Reported
2024-05-22 05:04
Platform
win10v2004-20240508-en
Max time kernel
141s
Max time network
124s
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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.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-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\cd069696-693e-4b3d-802a-5d4530a07ce2\\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.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 5052 set thread context of 3124 | N/A | C:\Users\Admin\AppData\Local\Temp\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.exe | C:\Users\Admin\AppData\Local\Temp\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.exe |
| PID 880 set thread context of 2160 | N/A | C:\Users\Admin\AppData\Local\Temp\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.exe | C:\Users\Admin\AppData\Local\Temp\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.exe
"C:\Users\Admin\AppData\Local\Temp\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.exe"
C:\Users\Admin\AppData\Local\Temp\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.exe
"C:\Users\Admin\AppData\Local\Temp\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\cd069696-693e-4b3d-802a-5d4530a07ce2" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.exe
"C:\Users\Admin\AppData\Local\Temp\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.exe
"C:\Users\Admin\AppData\Local\Temp\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.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 | 97.17.167.52.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 | 82.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 220.139.67.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.169.217.172.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 |
| CO | 190.147.2.86:80 | cajgtus.com | tcp |
| BR | 191.186.138.218:80 | sdfjhuz.com | tcp |
| CO | 190.147.2.86:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 86.2.147.190.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 218.138.186.191.in-addr.arpa | udp |
| CO | 190.147.2.86:80 | cajgtus.com | tcp |
| CO | 190.147.2.86:80 | cajgtus.com | tcp |
| CO | 190.147.2.86:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 98.56.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.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 |
Files
memory/5052-1-0x0000000004980000-0x0000000004A1A000-memory.dmp
memory/5052-2-0x0000000004A20000-0x0000000004B3B000-memory.dmp
memory/3124-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3124-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3124-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3124-6-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\cd069696-693e-4b3d-802a-5d4530a07ce2\ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea.exe
| MD5 | 967be9af9f69700577c315c55b878f49 |
| SHA1 | 67a95ed7f485a44aee16acc3ed99e817e8b9be66 |
| SHA256 | ddfe99e9494e00eecf0e20fc856edbe7d1763131790c60e6d307ead14df3d1ea |
| SHA512 | 4ce1f72258d3072237588601666514ad5774a8bc11ff8b774f2a6e38b6bb23a71efd39ab7d700c498bf583eba15d238b415e17c62bb579de75aaef39eef183dd |
memory/3124-17-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2160-20-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | cb35bd9d6c5a4fd50a9263018bbd9784 |
| SHA1 | efec24f93d2af7bd01969c36870ebc928fa6c790 |
| SHA256 | be648ee93df285417e494e28c01e3ab8f3d043845f4d3b397dfd137d187ed612 |
| SHA512 | ac26182fb167458da4b465b118720470859e8028db8d3d71ddbe0c5be0e46b9178c5f7ccb8b1252c38754e27da1af546f8d2f6e32e1bfcbeac0d510aa831bf11 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 8bac3167e164942e74503d57a12b6d3e |
| SHA1 | 420229ffb5707fcff1f89d5bacaf1b64f504dad3 |
| SHA256 | 6637b6fc25a8f3a5162635f1d3d1c7dde3764f89454a1a37376a080e9a2d7ebf |
| SHA512 | 44261e1ea06e3102c7e87804ee25d146529fdf63b6803e5365e1294ddcae197b3d6cdf0b6faa69120adba133be5136bdae10e34bc61c4f953881abadcde6348f |
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 | 1d28c8fac4be2023e8b03739d5b76aa9 |
| SHA1 | c799e111fd442c5a6dc8f03d7913ac72e04ec181 |
| SHA256 | 68518de82c1a74cc471b5e9e2714eb991d28cf56f2f65474dddf6ae60e1173bf |
| SHA512 | 91578a8ae75493d47945e5a67bdd38e83bf9676e4e1dc325706171a625da2ee3c3594b6667bde98321bdb66cc9868d0418c1f68e3524145144ac3b1472ead16f |
memory/2160-25-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2160-26-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2160-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2160-30-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2160-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2160-33-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2160-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2160-35-0x0000000000400000-0x0000000000537000-memory.dmp