Analysis Overview
SHA256
1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4
Threat Level: Known bad
The file 1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4 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
Unsigned PE
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-21 23:21
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-21 23:21
Reported
2024-05-21 23:23
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-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.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\\ff887327-1ffb-479f-9842-c0756065586a\\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.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 1552 set thread context of 3468 | N/A | C:\Users\Admin\AppData\Local\Temp\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.exe | C:\Users\Admin\AppData\Local\Temp\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.exe |
| PID 896 set thread context of 1944 | N/A | C:\Users\Admin\AppData\Local\Temp\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.exe | C:\Users\Admin\AppData\Local\Temp\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.exe
"C:\Users\Admin\AppData\Local\Temp\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.exe"
C:\Users\Admin\AppData\Local\Temp\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.exe
"C:\Users\Admin\AppData\Local\Temp\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\ff887327-1ffb-479f-9842-c0756065586a" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.exe
"C:\Users\Admin\AppData\Local\Temp\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.exe
"C:\Users\Admin\AppData\Local\Temp\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.exe" --Admin IsNotAutoStart IsNotTask
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 154.239.44.20.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 | 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 | 67.169.217.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | sdfjhuz.com | udp |
| US | 8.8.8.8:53 | cajgtus.com | udp |
| CO | 186.112.12.192:80 | cajgtus.com | tcp |
| AE | 94.207.16.210:80 | sdfjhuz.com | tcp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| CO | 186.112.12.192:80 | cajgtus.com | tcp |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 133.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 192.12.112.186.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 210.16.207.94.in-addr.arpa | udp |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| CO | 186.112.12.192:80 | cajgtus.com | tcp |
| CO | 186.112.12.192:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| CO | 186.112.12.192:80 | cajgtus.com | tcp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.236.111.52.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 |
Files
memory/1552-1-0x0000000002550000-0x00000000025F0000-memory.dmp
memory/1552-2-0x00000000041C0000-0x00000000042DB000-memory.dmp
memory/3468-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3468-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3468-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3468-6-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\ff887327-1ffb-479f-9842-c0756065586a\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.exe
| MD5 | f47c11ca7e97297d5bdbb85910a2f9f2 |
| SHA1 | 8d5d7e9d38bf7dc9c1510aa656a9468e289a80ba |
| SHA256 | 1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4 |
| SHA512 | 5954c8ebc830da9e2f83830ec991d4118de2e5c03287b4e4c7cf536932fc5385cd2ffa963c95c033cf88addcdf77a941b87e234fb7be496ffb5f435d01a026dc |
memory/3468-21-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1944-24-0x0000000000400000-0x0000000000537000-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 | 4fb32d87bc4f6dd4f68fe0a74854d1e9 |
| SHA1 | 65bebb80171d0ee0a608e7ffe4601fb5c6935a8c |
| SHA256 | 76854207c83af670b66db7e1c7ba30d6a8aef983d73cef35db64d79bb28b69bd |
| SHA512 | 9c15edd09a58073f57f6e16849347699e5efcb0148e1d4a527570442d5937f5b25bcab2fb06414ff4c55f8bf144a351e3479e9a34145fc4dea2b55727bbe4c6e |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | a1d955617a4d146e70544d0d9a0390ca |
| SHA1 | 5ffdc4453b23e24a7cb0e634b26864c169f5257b |
| SHA256 | 8dbff2c0018158256912d87dd495a68c351303a319f50f204a930317e867aeb3 |
| SHA512 | 0bffbc27638b12cc04f335de8c4f3c74df01ae55b56f389f8d046d797b4c62d31bbff057ea75ce32f67cdd3b878fd0aad3eb62e983f814296e1b94de3c6ba810 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | e748938d1288d0f9bc18dbd053bd0c0a |
| SHA1 | 6849f1bdd08e78770990218197fd67a9aa00020f |
| SHA256 | d9f647c7ec20d7107caaf6bacab2efc879612ba95ff9e3cdf02c5d60b9e27ad5 |
| SHA512 | 73df71f941d7160529b42362ef4203c129209cfe2355efc640c6e97c67db4d245df39051324cd7d4687c5679950ac80cc0cd4ac8cd048e52f5c34c4fd3aaac77 |
memory/1944-31-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1944-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1944-33-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1944-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1944-38-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1944-39-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1944-40-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1944-41-0x0000000000400000-0x0000000000537000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-21 23:21
Reported
2024-05-21 23:23
Platform
win11-20240508-en
Max time kernel
146s
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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| 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-1-5-21-2457560273-69882387-977367775-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\f4aacaef-38c3-462b-b575-fc68d4f06b00\\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.exe\" --AutoStart" | C:\Users\Admin\AppData\Local\Temp\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.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 760 set thread context of 2464 | N/A | C:\Users\Admin\AppData\Local\Temp\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.exe | C:\Users\Admin\AppData\Local\Temp\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.exe |
| PID 2296 set thread context of 3392 | N/A | C:\Users\Admin\AppData\Local\Temp\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.exe | C:\Users\Admin\AppData\Local\Temp\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.exe
"C:\Users\Admin\AppData\Local\Temp\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.exe"
C:\Users\Admin\AppData\Local\Temp\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.exe
"C:\Users\Admin\AppData\Local\Temp\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.exe"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\f4aacaef-38c3-462b-b575-fc68d4f06b00" /deny *S-1-1-0:(OI)(CI)(DE,DC)
C:\Users\Admin\AppData\Local\Temp\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.exe
"C:\Users\Admin\AppData\Local\Temp\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.exe" --Admin IsNotAutoStart IsNotTask
C:\Users\Admin\AppData\Local\Temp\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.exe
"C:\Users\Admin\AppData\Local\Temp\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.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 |
| BA | 109.175.29.39:80 | cajgtus.com | tcp |
| AE | 94.207.16.210:80 | sdfjhuz.com | tcp |
| BA | 109.175.29.39:80 | cajgtus.com | tcp |
| BA | 109.175.29.39:80 | cajgtus.com | tcp |
| BA | 109.175.29.39:80 | cajgtus.com | tcp |
| BA | 109.175.29.39:80 | cajgtus.com | tcp |
| US | 52.111.227.11:443 | tcp |
Files
memory/760-2-0x0000000004290000-0x00000000043AB000-memory.dmp
memory/760-1-0x0000000002780000-0x0000000002822000-memory.dmp
memory/2464-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2464-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2464-6-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2464-5-0x0000000000400000-0x0000000000537000-memory.dmp
C:\Users\Admin\AppData\Local\f4aacaef-38c3-462b-b575-fc68d4f06b00\1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4.exe
| MD5 | f47c11ca7e97297d5bdbb85910a2f9f2 |
| SHA1 | 8d5d7e9d38bf7dc9c1510aa656a9468e289a80ba |
| SHA256 | 1e9040d11c5155b96e7b35abb77b23968e9d27c513d3e7b2ff6b2824830169d4 |
| SHA512 | 5954c8ebc830da9e2f83830ec991d4118de2e5c03287b4e4c7cf536932fc5385cd2ffa963c95c033cf88addcdf77a941b87e234fb7be496ffb5f435d01a026dc |
memory/2464-21-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3392-24-0x0000000000400000-0x0000000000537000-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 | b7857e37b7600fe6b4d458ad10556918 |
| SHA1 | 830a3fb30dc3bec25c33d62b792e1f2fd817f844 |
| SHA256 | eb5e0e20f7f5ecdba741bd7710bd152c4e31dd0948cf320174f8fb028161342b |
| SHA512 | 518da64c33882496e97eff6c1b0b351cad011880d7421f437a664b6307aa9faf106cc77816458da0ec728378d61b3d21363772936ca324651cc9ac0d71dceafb |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | a1d955617a4d146e70544d0d9a0390ca |
| SHA1 | 5ffdc4453b23e24a7cb0e634b26864c169f5257b |
| SHA256 | 8dbff2c0018158256912d87dd495a68c351303a319f50f204a930317e867aeb3 |
| SHA512 | 0bffbc27638b12cc04f335de8c4f3c74df01ae55b56f389f8d046d797b4c62d31bbff057ea75ce32f67cdd3b878fd0aad3eb62e983f814296e1b94de3c6ba810 |
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
| MD5 | b083b6155ba664106a544a7b97589fbc |
| SHA1 | 3dfe36da7c4befa1707c5d92014d3b89f4690c0d |
| SHA256 | 13f4acfb454144dcc5ef9f61db3710b22fec54c071a1ddd7fbc7e68264851c59 |
| SHA512 | 8bfb7d2ed3e92009f292c6f5a2cd8bf9264eba3280b1e7d0477495a4b435785335f4f02034671aafd190590e90455a71ca65983fefd83d5055be56791d2fee65 |
memory/3392-31-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3392-32-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3392-33-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3392-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3392-38-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3392-39-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3392-40-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3392-41-0x0000000000400000-0x0000000000537000-memory.dmp