Analysis Overview
SHA256
6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7
Threat Level: Known bad
The file 6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7 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
2024-05-23 00:33
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-23 00:33
Reported
2024-05-23 00:36
Platform
win11-20240426-en
Max time kernel
149s
Max time network
150s
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-1-5-21-3062789476-783164490-2318012559-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\a0861954-190a-490e-8db4-c5bdae18bd9e\\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.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 3396 set thread context of 1164 | N/A | C:\Users\Admin\AppData\Local\Temp\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.exe | C:\Users\Admin\AppData\Local\Temp\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.exe |
| PID 4944 set thread context of 248 | N/A | C:\Users\Admin\AppData\Local\Temp\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.exe | C:\Users\Admin\AppData\Local\Temp\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.exe
"C:\Users\Admin\AppData\Local\Temp\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.exe"
C:\Users\Admin\AppData\Local\Temp\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.exe
"C:\Users\Admin\AppData\Local\Temp\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\a0861954-190a-490e-8db4-c5bdae18bd9e" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.exe
"C:\Users\Admin\AppData\Local\Temp\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.exe
"C:\Users\Admin\AppData\Local\Temp\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.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 | 24.65.21.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.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 |
| IR | 37.255.238.137:80 | cajgtus.com | tcp |
| CO | 190.159.30.35:80 | cajgtus.com | tcp |
| IR | 37.255.238.137:80 | cajgtus.com | tcp |
| IR | 37.255.238.137:80 | cajgtus.com | tcp |
| IR | 37.255.238.137:80 | cajgtus.com | tcp |
| IR | 37.255.238.137:80 | cajgtus.com | tcp |
Files
memory/3396-1-0x0000000004A10000-0x0000000004AAD000-memory.dmp
memory/1164-2-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3396-3-0x0000000004AB0000-0x0000000004BCB000-memory.dmp
memory/1164-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1164-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1164-6-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\a0861954-190a-490e-8db4-c5bdae18bd9e\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.exe
| MD5 | 646219d918509f10f82be9002ab95378 |
| SHA1 | 234aecb88c72e6f5225b682974d0f77053652e22 |
| SHA256 | 6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7 |
| SHA512 | 43fa079e53184cc9afaf94cf9286ff1e53de80f4aa543595477878d24cc902cd3c92d8d1c5575b90b54f8280e3da5ae16b38d39bd6cbaf7eb82991de2b4c7d7b |
memory/1164-21-0x0000000000400000-0x0000000000537000-memory.dmp
memory/248-24-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 0aa0a2b9744251bf808d53b479c0f56e |
| SHA1 | cab8629be656e8396576151077a8092c0a64fcd1 |
| SHA256 | b0b5623c234fa0a57f9b44397a7220569f082fffc6254f65489a0fd52760fdb3 |
| SHA512 | e16302ab1814795595a6a56a4c391c7b98c9ff1bd47fd6dd9667c2da698139a70230a1bd03668e6e95c8a1359b4cc35c9beb9e92b206a2a4ccee2ee08cd69f23 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 7575c39a544943a68ce6e709c586005a |
| SHA1 | 4874b30bd1d455b28a95c4e21c5aecd1ea043d7a |
| SHA256 | 4737de49245ace1ca1fdeaacd5feee9bbda88bc6f42c84a1ea7d316383792cf8 |
| SHA512 | abf3d85393725113e720cbe8980b369236511e3984e8cbfa795f19bb5d6e39822e80a835caeb498581797a74b349765ba1a27f26586a17a66ae1c88bd066a3d1 |
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 | fc96626f9bfe91785042b78186c12426 |
| SHA1 | fe811e05ea4a8034737c1a69e2832b1429d4a262 |
| SHA256 | d93e1890e9e4413fe6d17e172ba12161690769dcfba79e05d22e407a92686357 |
| SHA512 | f2ae6d705958b4dd125b9f556fab84b4c9d3055178f143f26bcdaff8b798a36f717e765d48fbe74187deebe28cf80972159a772e01969df48f73a976a82ece55 |
memory/248-31-0x0000000000400000-0x0000000000537000-memory.dmp
memory/248-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/248-33-0x0000000000400000-0x0000000000537000-memory.dmp
memory/248-35-0x0000000000400000-0x0000000000537000-memory.dmp
memory/248-38-0x0000000000400000-0x0000000000537000-memory.dmp
memory/248-37-0x0000000000400000-0x0000000000537000-memory.dmp
memory/248-39-0x0000000000400000-0x0000000000537000-memory.dmp
memory/248-41-0x0000000000400000-0x0000000000537000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-23 00:33
Reported
2024-05-23 00:36
Platform
win10v2004-20240508-en
Max time kernel
149s
Max time network
151s
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-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.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-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\0f569b10-d033-48de-b0ea-1403d94dc903\\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.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 2804 set thread context of 3764 | N/A | C:\Users\Admin\AppData\Local\Temp\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.exe | C:\Users\Admin\AppData\Local\Temp\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.exe |
| PID 4716 set thread context of 1152 | N/A | C:\Users\Admin\AppData\Local\Temp\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.exe | C:\Users\Admin\AppData\Local\Temp\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.exe
"C:\Users\Admin\AppData\Local\Temp\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.exe"
C:\Users\Admin\AppData\Local\Temp\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.exe
"C:\Users\Admin\AppData\Local\Temp\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\0f569b10-d033-48de-b0ea-1403d94dc903" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.exe
"C:\Users\Admin\AppData\Local\Temp\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.exe
"C:\Users\Admin\AppData\Local\Temp\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.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 | api.2ip.ua | udp |
| US | 104.21.65.24:443 | api.2ip.ua | tcp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 24.65.21.104.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 |
| US | 8.8.8.8:53 | sdfjhuz.com | udp |
| US | 8.8.8.8:53 | cajgtus.com | udp |
| AR | 200.122.37.247:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| AR | 200.114.83.251:80 | sdfjhuz.com | tcp |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 138.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 247.37.122.200.in-addr.arpa | udp |
| AR | 200.122.37.247:80 | cajgtus.com | tcp |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 251.83.114.200.in-addr.arpa | udp |
| AR | 200.122.37.247:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| AR | 200.122.37.247:80 | cajgtus.com | tcp |
| AR | 200.122.37.247:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.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 |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 13.179.89.13.in-addr.arpa | udp |
Files
memory/2804-1-0x0000000002ED0000-0x0000000002F6E000-memory.dmp
memory/3764-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3764-2-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3764-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2804-4-0x0000000004A50000-0x0000000004B6B000-memory.dmp
memory/3764-6-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\0f569b10-d033-48de-b0ea-1403d94dc903\6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7.exe
| MD5 | 646219d918509f10f82be9002ab95378 |
| SHA1 | 234aecb88c72e6f5225b682974d0f77053652e22 |
| SHA256 | 6901a20b62e5cb987eeca25432860c17f775a6b5540c3308feb2bf10a25451b7 |
| SHA512 | 43fa079e53184cc9afaf94cf9286ff1e53de80f4aa543595477878d24cc902cd3c92d8d1c5575b90b54f8280e3da5ae16b38d39bd6cbaf7eb82991de2b4c7d7b |
memory/3764-19-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1152-22-0x0000000000400000-0x0000000000537000-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 | 0524a5cedb48c47befb5e85a86a46f39 |
| SHA1 | a2aae060261ab0f257c5c38f03ed78b5f09407d1 |
| SHA256 | 752b009d8a8423b4a5670dbd2bb6b8db520099f7ff160b14dc4acb3429d69ccb |
| SHA512 | 4c0126b07cc1128d8f54e1dbd02b3c509d76040043062b2c069467de5ac5e794d9a99c74aef144620bd66f091ea02c4ea9688c91bb3c036d83a9eff0e696b0f3 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | 7575c39a544943a68ce6e709c586005a |
| SHA1 | 4874b30bd1d455b28a95c4e21c5aecd1ea043d7a |
| SHA256 | 4737de49245ace1ca1fdeaacd5feee9bbda88bc6f42c84a1ea7d316383792cf8 |
| SHA512 | abf3d85393725113e720cbe8980b369236511e3984e8cbfa795f19bb5d6e39822e80a835caeb498581797a74b349765ba1a27f26586a17a66ae1c88bd066a3d1 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | ece978a90c09f3d4d404e983e043b0a6 |
| SHA1 | 1e2c263ff661df3bd539a4068e3f1ffdac950bd1 |
| SHA256 | cc9f6574aac272553b92c6660147d5af46f0c076a26be8fd51fa2c323ffa6b10 |
| SHA512 | 62185ae669a07205972c0413acd02d1c04ef2d18b1bb9858f8a1c6372cc0c3b591b5f30ed400146b89acd77ca07c399d9e4173bfdc93d976f7b2d1d051236af4 |
memory/1152-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1152-30-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1152-31-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1152-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1152-37-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1152-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1152-38-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1152-39-0x0000000000400000-0x0000000000537000-memory.dmp