Analysis Overview
SHA256
bb7b31ac0a920d74271e910ff619ad0d04867be4e1ff6b4643c0bb8513be3f7b
Threat Level: Known bad
The file cdf5fd113dde40d22ae10c54022558e0_NEIKI was found to be: Known bad.
Malicious Activity Summary
ModiLoader, DBatLoader
ModiLoader Second Stage
Loads dropped DLL
UPX packed file
Checks computer location settings
Executes dropped EXE
Adds Run key to start application
Suspicious use of SetThreadContext
Unsigned PE
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-08 13:54
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: behavioral2
Detonation Overview
Submitted
2024-05-08 13:54
Reported
2024-05-08 13:56
Platform
win10v2004-20240226-en
Max time kernel
152s
Max time network
159s
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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\cdf5fd113dde40d22ae10c54022558e0_NEIKI.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-1-5-21-3808065738-1666277613-1125846146-1000\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 2828 set thread context of 2232 | N/A | C:\Users\Admin\AppData\Local\Temp\cdf5fd113dde40d22ae10c54022558e0_NEIKI.exe | C:\Users\Admin\AppData\Local\Temp\cdf5fd113dde40d22ae10c54022558e0_NEIKI.exe |
| PID 3988 set thread context of 4812 | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe |
| PID 3988 set thread context of 4980 | 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\cdf5fd113dde40d22ae10c54022558e0_NEIKI.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cdf5fd113dde40d22ae10c54022558e0_NEIKI.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\cdf5fd113dde40d22ae10c54022558e0_NEIKI.exe
"C:\Users\Admin\AppData\Local\Temp\cdf5fd113dde40d22ae10c54022558e0_NEIKI.exe"
C:\Users\Admin\AppData\Local\Temp\cdf5fd113dde40d22ae10c54022558e0_NEIKI.exe
"C:\Users\Admin\AppData\Local\Temp\cdf5fd113dde40d22ae10c54022558e0_NEIKI.exe"
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4160 --field-trial-handle=2304,i,6987730730348465820,3913273227385401271,262144 --variations-seed-version /prefetch:8
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\WDEBK.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 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 13.107.253.64:443 | tcp | |
| US | 8.8.8.8:53 | 134.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | 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 |
| GB | 172.217.169.74:443 | tcp | |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.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 | billabong4102.no-ip.biz | udp |
| US | 8.8.8.8:53 | 29.243.111.52.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 | 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 | 14.173.189.20.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 |
Files
memory/2828-0-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2828-1-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2828-4-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2828-5-0x0000000002300000-0x0000000002302000-memory.dmp
memory/2828-6-0x0000000002330000-0x0000000002332000-memory.dmp
memory/2232-7-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2232-9-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2232-11-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2828-14-0x0000000000400000-0x0000000000453000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\WDEBK.txt
| MD5 | 4eb61ec7816c34ec8c125acadc57ec1b |
| SHA1 | b0015cc865c0bb1a027be663027d3829401a31cc |
| SHA256 | 08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff |
| SHA512 | f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1 |
memory/2232-21-0x0000000000400000-0x000000000040B000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
| MD5 | 807995eab5fa7467e7a65da6a48d3509 |
| SHA1 | 23a7c07f4b6e2ac879eb4104e73257e1556f9cb9 |
| SHA256 | 7764d2cee5b749537e727afd2cdb00bba87e0e97b37e8c8969fa867fd6e40645 |
| SHA512 | b9bb02bec2f0a929fd33d612b2d6c7515a6aa384036c37dab8ee46832e8cee378ef630d856635666bd75667f0cdcdedd77a333cabc07908d8118dc9b2183eb4f |
memory/3988-38-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2232-37-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2232-42-0x0000000000400000-0x000000000040B000-memory.dmp
memory/3988-43-0x0000000000400000-0x0000000000453000-memory.dmp
memory/3988-44-0x0000000000400000-0x0000000000453000-memory.dmp
memory/4980-47-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3988-53-0x0000000000400000-0x0000000000453000-memory.dmp
memory/4980-57-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4980-59-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4980-58-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4980-60-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2232-61-0x0000000000410000-0x00000000004D9000-memory.dmp
memory/2232-63-0x0000000000400000-0x000000000040B000-memory.dmp
memory/4812-64-0x0000000000400000-0x000000000040B000-memory.dmp
memory/4980-65-0x0000000000400000-0x0000000000414000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-08 13:54
Reported
2024-05-08 13:56
Platform
win7-20240419-en
Max time kernel
149s
Max time network
119s
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\cdf5fd113dde40d22ae10c54022558e0_NEIKI.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cdf5fd113dde40d22ae10c54022558e0_NEIKI.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cdf5fd113dde40d22ae10c54022558e0_NEIKI.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cdf5fd113dde40d22ae10c54022558e0_NEIKI.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cdf5fd113dde40d22ae10c54022558e0_NEIKI.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 |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\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 2068 set thread context of 2656 | N/A | C:\Users\Admin\AppData\Local\Temp\cdf5fd113dde40d22ae10c54022558e0_NEIKI.exe | C:\Users\Admin\AppData\Local\Temp\cdf5fd113dde40d22ae10c54022558e0_NEIKI.exe |
| PID 1940 set thread context of 768 | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe |
| PID 1940 set thread context of 1476 | 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\cdf5fd113dde40d22ae10c54022558e0_NEIKI.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cdf5fd113dde40d22ae10c54022558e0_NEIKI.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\cdf5fd113dde40d22ae10c54022558e0_NEIKI.exe
"C:\Users\Admin\AppData\Local\Temp\cdf5fd113dde40d22ae10c54022558e0_NEIKI.exe"
C:\Users\Admin\AppData\Local\Temp\cdf5fd113dde40d22ae10c54022558e0_NEIKI.exe
"C:\Users\Admin\AppData\Local\Temp\cdf5fd113dde40d22ae10c54022558e0_NEIKI.exe"
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\PTFDH.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/2068-0-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2068-3-0x0000000000240000-0x0000000000241000-memory.dmp
memory/2068-5-0x0000000000240000-0x0000000000241000-memory.dmp
memory/2068-15-0x0000000000260000-0x0000000000261000-memory.dmp
memory/2068-39-0x0000000000470000-0x0000000000471000-memory.dmp
memory/2068-27-0x0000000000280000-0x0000000000281000-memory.dmp
memory/2068-77-0x00000000004F0000-0x00000000004F2000-memory.dmp
memory/2068-69-0x00000000004D0000-0x00000000004D1000-memory.dmp
memory/2068-59-0x00000000004B0000-0x00000000004B1000-memory.dmp
memory/2068-88-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2068-87-0x0000000000404000-0x0000000000405000-memory.dmp
memory/2656-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2656-104-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2656-103-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2068-102-0x0000000000400000-0x0000000000453000-memory.dmp
memory/2656-101-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2656-98-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2068-95-0x00000000027D0000-0x0000000002823000-memory.dmp
memory/2656-93-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2656-89-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2656-91-0x0000000000400000-0x000000000040B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\PTFDH.bat
| MD5 | 4eb61ec7816c34ec8c125acadc57ec1b |
| SHA1 | b0015cc865c0bb1a027be663027d3829401a31cc |
| SHA256 | 08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff |
| SHA512 | f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1 |
\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
| MD5 | 5412663ddd1b59b1f728e50478a46c0b |
| SHA1 | e7d28a0300b2e3d4875846b5a971a31ea05a374c |
| SHA256 | a7e8ecdf4b395bf69ca1220c3fa35686e8ae8aeb04924bb0ceba557d17e83503 |
| SHA512 | d250a2b78a0cca7b788af3aa14749bdac3d6d7b7a5b244785f4c33f8ef5f531d18c4cbcf18028cbc734fb9f4812121fe00135e109b62b3d73023e7cfc4d24fa7 |
memory/2656-147-0x00000000026E0000-0x0000000002733000-memory.dmp
memory/2656-146-0x00000000026E0000-0x0000000002733000-memory.dmp
memory/2656-145-0x00000000026E0000-0x0000000002733000-memory.dmp
memory/2656-144-0x00000000026E0000-0x0000000002733000-memory.dmp
memory/2656-135-0x00000000026E0000-0x0000000002733000-memory.dmp
memory/1940-149-0x0000000000400000-0x0000000000453000-memory.dmp
memory/1940-154-0x0000000000230000-0x0000000000231000-memory.dmp
memory/1940-175-0x0000000000270000-0x0000000000271000-memory.dmp
memory/1940-227-0x0000000000400000-0x0000000000453000-memory.dmp
memory/1940-164-0x0000000000250000-0x0000000000251000-memory.dmp
memory/1476-243-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2656-253-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1940-250-0x0000000000400000-0x0000000000453000-memory.dmp
memory/1476-259-0x0000000000400000-0x0000000000414000-memory.dmp
memory/768-258-0x0000000000400000-0x000000000040B000-memory.dmp