Analysis Overview
SHA256
ba59878f82c80a6d90f304303a59389159f5c95e98920ef2f9d43b8585b3a7e7
Threat Level: Known bad
The file a99ac28401808fa033018d6986b63b90_NEAS was found to be: Known bad.
Malicious Activity Summary
ModiLoader, DBatLoader
ModiLoader Second Stage
Executes dropped EXE
Loads dropped DLL
Checks computer location settings
UPX packed file
Adds Run key to start application
Suspicious use of SetThreadContext
Enumerates physical storage devices
Unsigned PE
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 13:45
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 13:45
Reported
2024-05-07 13:48
Platform
win7-20240221-en
Max time kernel
149s
Max time network
128s
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\a99ac28401808fa033018d6986b63b90_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a99ac28401808fa033018d6986b63b90_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a99ac28401808fa033018d6986b63b90_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a99ac28401808fa033018d6986b63b90_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a99ac28401808fa033018d6986b63b90_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 |
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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-1-5-21-330940541-141609230-1670313778-1000\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 2256 set thread context of 560 | N/A | C:\Users\Admin\AppData\Local\Temp\a99ac28401808fa033018d6986b63b90_NEAS.exe | C:\Users\Admin\AppData\Local\Temp\a99ac28401808fa033018d6986b63b90_NEAS.exe |
| PID 1300 set thread context of 920 | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe |
| PID 1300 set thread context of 2200 | 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\a99ac28401808fa033018d6986b63b90_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a99ac28401808fa033018d6986b63b90_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\a99ac28401808fa033018d6986b63b90_NEAS.exe
"C:\Users\Admin\AppData\Local\Temp\a99ac28401808fa033018d6986b63b90_NEAS.exe"
C:\Users\Admin\AppData\Local\Temp\a99ac28401808fa033018d6986b63b90_NEAS.exe
"C:\Users\Admin\AppData\Local\Temp\a99ac28401808fa033018d6986b63b90_NEAS.exe"
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\UIJEC.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/2256-0-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2256-15-0x00000000002D0000-0x00000000002D1000-memory.dmp
memory/2256-5-0x0000000000230000-0x0000000000231000-memory.dmp
memory/2256-85-0x0000000000400000-0x0000000000453000-memory.dmp
memory/560-103-0x0000000000400000-0x000000000040B000-memory.dmp
memory/560-105-0x0000000000400000-0x000000000040B000-memory.dmp
memory/560-111-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2256-110-0x0000000000400000-0x0000000000453000-memory.dmp
memory/560-108-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2256-107-0x0000000000400000-0x0000000000453000-memory.dmp
memory/560-101-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/560-99-0x0000000000400000-0x000000000040B000-memory.dmp
memory/560-97-0x0000000000400000-0x000000000040B000-memory.dmp
memory/560-95-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2256-93-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2256-84-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2256-83-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2256-81-0x00000000003B0000-0x00000000003B2000-memory.dmp
memory/2256-80-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2256-79-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2256-71-0x0000000000390000-0x0000000000391000-memory.dmp
memory/2256-61-0x0000000000360000-0x0000000000361000-memory.dmp
memory/2256-54-0x0000000000404000-0x0000000000405000-memory.dmp
memory/2256-40-0x0000000000310000-0x0000000000311000-memory.dmp
memory/2256-28-0x00000000002F0000-0x00000000002F1000-memory.dmp
memory/2256-25-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2256-3-0x0000000000230000-0x0000000000231000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\UIJEC.bat
| MD5 | 4eb61ec7816c34ec8c125acadc57ec1b |
| SHA1 | b0015cc865c0bb1a027be663027d3829401a31cc |
| SHA256 | 08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff |
| SHA512 | f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1 |
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
| MD5 | 2974260e7439d4f34a3a5d6ca048318a |
| SHA1 | 162324584fec9b4dd1a19ccf943a6944116b00e4 |
| SHA256 | 305b141efe374d7b329cd257e3047f702c6406302f6b4e169273d74abfc3be47 |
| SHA512 | a3c5aed83093321fc94961ad133954d95257866a2c1a95fa4e41937b6e917d0b5f65a556e04bc72999c2ce2630ed0c6dd301cefebd68e80b777cda56e13277aa |
memory/1300-155-0x0000000000400000-0x0000000000453000-memory.dmp
memory/560-153-0x0000000002C60000-0x0000000002CB3000-memory.dmp
memory/560-152-0x0000000002C60000-0x0000000002CB3000-memory.dmp
memory/560-151-0x0000000002C60000-0x0000000002CB3000-memory.dmp
memory/560-138-0x0000000002C60000-0x0000000002CB3000-memory.dmp
memory/560-158-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1300-182-0x0000000000280000-0x0000000000281000-memory.dmp
memory/560-257-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1300-253-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2200-251-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1300-219-0x0000000000400000-0x0000000000453000-memory.dmp
memory/1300-171-0x0000000000260000-0x0000000000261000-memory.dmp
memory/1300-161-0x00000000001C0000-0x00000000001C1000-memory.dmp
memory/920-265-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2200-266-0x0000000000400000-0x0000000000414000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-07 13:45
Reported
2024-05-07 13:47
Platform
win10v2004-20240426-en
Max time kernel
149s
Max time network
150s
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-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\a99ac28401808fa033018d6986b63b90_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 |
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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-1-5-21-3906287020-2915474608-1755617787-1000\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 1160 set thread context of 640 | N/A | C:\Users\Admin\AppData\Local\Temp\a99ac28401808fa033018d6986b63b90_NEAS.exe | C:\Users\Admin\AppData\Local\Temp\a99ac28401808fa033018d6986b63b90_NEAS.exe |
| PID 2300 set thread context of 3680 | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe |
| PID 2300 set thread context of 5428 | 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\a99ac28401808fa033018d6986b63b90_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a99ac28401808fa033018d6986b63b90_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\a99ac28401808fa033018d6986b63b90_NEAS.exe
"C:\Users\Admin\AppData\Local\Temp\a99ac28401808fa033018d6986b63b90_NEAS.exe"
C:\Users\Admin\AppData\Local\Temp\a99ac28401808fa033018d6986b63b90_NEAS.exe
"C:\Users\Admin\AppData\Local\Temp\a99ac28401808fa033018d6986b63b90_NEAS.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\OCDXU.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 | 232.168.11.51.in-addr.arpa | udp |
| 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 | 240.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| NL | 23.62.61.129:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 129.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | 28.118.140.52.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 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 142.53.16.96.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 | 249.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | 26.35.223.20.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 | 11.227.111.52.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 | 8.8.8.8:53 | 57.169.31.20.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 | 8.173.189.20.in-addr.arpa | udp |
Files
memory/1160-0-0x0000000000400000-0x0000000000453000-memory.dmp
memory/640-3-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1160-6-0x0000000002A30000-0x0000000002A32000-memory.dmp
memory/1160-5-0x00000000021D0000-0x00000000021D2000-memory.dmp
memory/1160-4-0x00000000021C0000-0x00000000021C2000-memory.dmp
memory/640-9-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1160-10-0x0000000000400000-0x0000000000453000-memory.dmp
memory/640-11-0x0000000000400000-0x000000000040B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\OCDXU.txt
| MD5 | 4eb61ec7816c34ec8c125acadc57ec1b |
| SHA1 | b0015cc865c0bb1a027be663027d3829401a31cc |
| SHA256 | 08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff |
| SHA512 | f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1 |
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
| MD5 | 14670e9e0ec2e2ea4f131133bd45f156 |
| SHA1 | 5fc1426c68df2be2f10b8df97f10258390428f19 |
| SHA256 | e5ab6080e99017417934b12d123456843785ac2495daf543d1e97c04dbadcac1 |
| SHA512 | bb74ec020bf10708942bcf7433673ef1ee9367f0d38906188c48a90767316ac92d982fa03c633c17146fccc49ca9876f3fa84a2f95fa7860eccfc0eed1656d9e |
memory/2300-35-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2300-43-0x0000000000400000-0x0000000000453000-memory.dmp
memory/5428-41-0x0000000000400000-0x0000000000414000-memory.dmp
memory/5428-51-0x0000000000400000-0x0000000000414000-memory.dmp
memory/5428-52-0x0000000000400000-0x0000000000414000-memory.dmp
memory/5428-53-0x0000000000400000-0x0000000000414000-memory.dmp
memory/640-54-0x0000000000410000-0x00000000004D9000-memory.dmp
memory/640-55-0x0000000000400000-0x000000000040B000-memory.dmp
memory/5428-49-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3680-56-0x0000000000400000-0x000000000040B000-memory.dmp
memory/5428-57-0x0000000000400000-0x0000000000414000-memory.dmp