Analysis Overview
SHA256
32ff70c4f0a9d2aab2447b0a5646efb6ef674a21e3c2f349c054d1aa3e8c7c82
Threat Level: Known bad
The file df90303b419a6e98df4cf992845f0380_NEAS was found to be: Known bad.
Malicious Activity Summary
ModiLoader, DBatLoader
ModiLoader Second Stage
Loads dropped DLL
Executes dropped EXE
UPX packed file
Checks computer location settings
Adds Run key to start application
Suspicious use of SetThreadContext
Unsigned PE
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-07 16:41
Signatures
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-07 16:41
Reported
2024-05-07 16:43
Platform
win7-20240221-en
Max time kernel
149s
Max time network
123s
Command Line
Signatures
ModiLoader, DBatLoader
ModiLoader Second Stage
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\df90303b419a6e98df4cf992845f0380_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\df90303b419a6e98df4cf992845f0380_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\df90303b419a6e98df4cf992845f0380_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\df90303b419a6e98df4cf992845f0380_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\df90303b419a6e98df4cf992845f0380_NEAS.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
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| N/A | N/A | N/A | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe" | C:\Windows\SysWOW64\reg.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1888 set thread context of 2740 | N/A | C:\Users\Admin\AppData\Local\Temp\df90303b419a6e98df4cf992845f0380_NEAS.exe | C:\Users\Admin\AppData\Local\Temp\df90303b419a6e98df4cf992845f0380_NEAS.exe |
| PID 892 set thread context of 596 | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe |
| PID 892 set thread context of 988 | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\df90303b419a6e98df4cf992845f0380_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\df90303b419a6e98df4cf992845f0380_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\df90303b419a6e98df4cf992845f0380_NEAS.exe
"C:\Users\Admin\AppData\Local\Temp\df90303b419a6e98df4cf992845f0380_NEAS.exe"
C:\Users\Admin\AppData\Local\Temp\df90303b419a6e98df4cf992845f0380_NEAS.exe
"C:\Users\Admin\AppData\Local\Temp\df90303b419a6e98df4cf992845f0380_NEAS.exe"
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\JXYAK.bat" "
C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Win Pdf" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe" /f
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
Files
memory/1888-0-0x0000000000400000-0x0000000000453000-memory.dmp
memory/1888-15-0x0000000000260000-0x0000000000261000-memory.dmp
memory/1888-5-0x0000000000240000-0x0000000000241000-memory.dmp
memory/1888-3-0x0000000000240000-0x0000000000241000-memory.dmp
memory/1888-85-0x0000000000400000-0x0000000000453000-memory.dmp
memory/1888-82-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2740-102-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2740-100-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2740-98-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2740-96-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1888-104-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2740-108-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2740-107-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2740-106-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2740-94-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1888-93-0x0000000002600000-0x0000000002653000-memory.dmp
memory/1888-92-0x0000000000400000-0x0000000000453000-memory.dmp
memory/1888-81-0x0000000000400000-0x0000000000453000-memory.dmp
memory/1888-79-0x0000000000340000-0x0000000000342000-memory.dmp
memory/1888-78-0x0000000000400000-0x0000000000453000-memory.dmp
memory/1888-70-0x0000000000320000-0x0000000000321000-memory.dmp
memory/1888-60-0x0000000000300000-0x0000000000301000-memory.dmp
memory/1888-51-0x0000000000404000-0x0000000000405000-memory.dmp
memory/1888-39-0x00000000002B0000-0x00000000002B1000-memory.dmp
memory/1888-27-0x0000000000290000-0x0000000000291000-memory.dmp
memory/2740-111-0x0000000000400000-0x000000000040B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\JXYAK.bat
| MD5 | 4eb61ec7816c34ec8c125acadc57ec1b |
| SHA1 | b0015cc865c0bb1a027be663027d3829401a31cc |
| SHA256 | 08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff |
| SHA512 | f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1 |
\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
| MD5 | fe9c09de96abec344de3389366c12c1d |
| SHA1 | c004660b89e1247ae29489009e8a9bb9891b41e8 |
| SHA256 | 290d4eb88f4716760d3ead588b041ab5f94a59ac3b1bc6931641b5b31a64f4d1 |
| SHA512 | 96af91dbb2080d77acd83abd42e25b6a944f29bd4e88c9e35ba2d91e0bfc827490870ef0658cdac0176e57d08a10674a1357799f1f271ba6b8707d64b0368d15 |
memory/2740-148-0x0000000003310000-0x0000000003363000-memory.dmp
memory/2740-152-0x0000000003310000-0x0000000003363000-memory.dmp
memory/892-153-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2740-151-0x0000000003310000-0x0000000003363000-memory.dmp
memory/2740-150-0x0000000003310000-0x0000000003363000-memory.dmp
memory/892-158-0x0000000000230000-0x0000000000231000-memory.dmp
memory/892-179-0x00000000003D0000-0x00000000003D1000-memory.dmp
memory/892-168-0x0000000000250000-0x0000000000251000-memory.dmp
memory/892-249-0x0000000000400000-0x0000000000453000-memory.dmp
memory/988-247-0x0000000000400000-0x0000000000414000-memory.dmp
memory/892-246-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2740-254-0x0000000000400000-0x000000000040B000-memory.dmp
memory/988-262-0x0000000000400000-0x0000000000414000-memory.dmp
memory/596-263-0x0000000000400000-0x000000000040B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-07 16:41
Reported
2024-05-07 16:44
Platform
win10v2004-20240419-en
Max time kernel
149s
Max time network
149s
Command Line
Signatures
ModiLoader, DBatLoader
ModiLoader Second Stage
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-877519540-908060166-1852957295-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\df90303b419a6e98df4cf992845f0380_NEAS.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
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| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-877519540-908060166-1852957295-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe" | C:\Windows\SysWOW64\reg.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4632 set thread context of 456 | N/A | C:\Users\Admin\AppData\Local\Temp\df90303b419a6e98df4cf992845f0380_NEAS.exe | C:\Users\Admin\AppData\Local\Temp\df90303b419a6e98df4cf992845f0380_NEAS.exe |
| PID 4408 set thread context of 4344 | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe |
| PID 4408 set thread context of 4036 | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\df90303b419a6e98df4cf992845f0380_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\df90303b419a6e98df4cf992845f0380_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\df90303b419a6e98df4cf992845f0380_NEAS.exe
"C:\Users\Admin\AppData\Local\Temp\df90303b419a6e98df4cf992845f0380_NEAS.exe"
C:\Users\Admin\AppData\Local\Temp\df90303b419a6e98df4cf992845f0380_NEAS.exe
"C:\Users\Admin\AppData\Local\Temp\df90303b419a6e98df4cf992845f0380_NEAS.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\EYCNL.bat" "
C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Win Pdf" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe" /f
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
Network
| Country | Destination | Domain | Proto |
| 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 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.32.126.40.in-addr.arpa | udp |
| NL | 23.62.61.160:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 160.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 24.121.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.251.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | 23.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | 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 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | 93.65.42.20.in-addr.arpa | udp |
Files
memory/4632-0-0x0000000000400000-0x0000000000453000-memory.dmp
memory/456-3-0x0000000000400000-0x000000000040B000-memory.dmp
memory/4632-5-0x0000000002910000-0x0000000002912000-memory.dmp
memory/4632-4-0x0000000002900000-0x0000000002902000-memory.dmp
memory/4632-6-0x0000000002920000-0x0000000002922000-memory.dmp
memory/456-8-0x0000000000400000-0x000000000040B000-memory.dmp
memory/4632-10-0x0000000000400000-0x0000000000453000-memory.dmp
memory/456-11-0x0000000000400000-0x000000000040B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\EYCNL.txt
| MD5 | 4eb61ec7816c34ec8c125acadc57ec1b |
| SHA1 | b0015cc865c0bb1a027be663027d3829401a31cc |
| SHA256 | 08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff |
| SHA512 | f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1 |
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
| MD5 | 05e455195beb366fc1d556dd75e33899 |
| SHA1 | aaafed79613b77dc7aade548c0491f344004d3a1 |
| SHA256 | 52b6a2c27a3f190a77146cf2f71d7e1fb6afdd340a32b22528adefee294d042e |
| SHA512 | b7024566c0e51aa3c005f2a5bd62adaeddf1241d7f576a3c8479d443a9ead3e8bf5e9bf8bf34cfaa7a5f6e7ebeed72da4e636e092e741df9fdc6922110848356 |
memory/4408-34-0x0000000000400000-0x0000000000453000-memory.dmp
memory/4036-40-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4036-48-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4036-50-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4036-51-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4036-52-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4408-46-0x0000000000400000-0x0000000000453000-memory.dmp
memory/456-55-0x0000000000410000-0x00000000004D9000-memory.dmp
memory/456-57-0x0000000000400000-0x000000000040B000-memory.dmp
memory/4344-58-0x0000000000400000-0x000000000040B000-memory.dmp
memory/4036-59-0x0000000000400000-0x0000000000414000-memory.dmp