Analysis Overview
SHA256
28f1e799b00bed99d9777b6d48e7f20c9d2dd9386869ecea13ab68633600abfa
Threat Level: Known bad
The file 71523d4ed0a8d827f80c6d2e9ec825e0_NEAS was found to be: Known bad.
Malicious Activity Summary
ModiLoader, DBatLoader
ModiLoader Second Stage
Loads dropped DLL
UPX packed file
Executes dropped EXE
Checks computer location settings
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
2024-05-07 05:22
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 |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-07 05:22
Reported
2024-05-07 05:24
Platform
win7-20240221-en
Max time kernel
150s
Max time network
124s
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\71523d4ed0a8d827f80c6d2e9ec825e0_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\71523d4ed0a8d827f80c6d2e9ec825e0_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\71523d4ed0a8d827f80c6d2e9ec825e0_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\71523d4ed0a8d827f80c6d2e9ec825e0_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\71523d4ed0a8d827f80c6d2e9ec825e0_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 |
| 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-1-5-21-330940541-141609230-1670313778-1000\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 2804 set thread context of 2408 | N/A | C:\Users\Admin\AppData\Local\Temp\71523d4ed0a8d827f80c6d2e9ec825e0_NEAS.exe | C:\Users\Admin\AppData\Local\Temp\71523d4ed0a8d827f80c6d2e9ec825e0_NEAS.exe |
| PID 1476 set thread context of 2256 | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe |
| PID 1476 set thread context of 2848 | 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\71523d4ed0a8d827f80c6d2e9ec825e0_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\71523d4ed0a8d827f80c6d2e9ec825e0_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\71523d4ed0a8d827f80c6d2e9ec825e0_NEAS.exe
"C:\Users\Admin\AppData\Local\Temp\71523d4ed0a8d827f80c6d2e9ec825e0_NEAS.exe"
C:\Users\Admin\AppData\Local\Temp\71523d4ed0a8d827f80c6d2e9ec825e0_NEAS.exe
"C:\Users\Admin\AppData\Local\Temp\71523d4ed0a8d827f80c6d2e9ec825e0_NEAS.exe"
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\EDRHU.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/2804-0-0x0000000000400000-0x0000000000454000-memory.dmp
memory/2804-3-0x0000000000230000-0x0000000000231000-memory.dmp
memory/2804-15-0x0000000000260000-0x0000000000261000-memory.dmp
memory/2804-5-0x0000000000230000-0x0000000000231000-memory.dmp
memory/2804-87-0x0000000000400000-0x0000000000454000-memory.dmp
memory/2804-82-0x0000000000400000-0x0000000000454000-memory.dmp
memory/2804-81-0x0000000000400000-0x0000000000454000-memory.dmp
memory/2804-79-0x00000000003E0000-0x00000000003E2000-memory.dmp
memory/2804-106-0x0000000000400000-0x0000000000454000-memory.dmp
memory/2408-105-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2408-104-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2804-103-0x0000000000400000-0x0000000000454000-memory.dmp
memory/2408-102-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2408-100-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2408-98-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2408-96-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2408-94-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2408-92-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2804-78-0x0000000000400000-0x0000000000454000-memory.dmp
memory/2804-77-0x0000000000404000-0x0000000000405000-memory.dmp
memory/2804-69-0x00000000003C0000-0x00000000003C1000-memory.dmp
memory/2804-59-0x00000000003A0000-0x00000000003A1000-memory.dmp
memory/2804-39-0x0000000000360000-0x0000000000361000-memory.dmp
memory/2804-27-0x00000000002C0000-0x00000000002C1000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\EDRHU.bat
| MD5 | 4eb61ec7816c34ec8c125acadc57ec1b |
| SHA1 | b0015cc865c0bb1a027be663027d3829401a31cc |
| SHA256 | 08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff |
| SHA512 | f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1 |
memory/2408-147-0x0000000002D50000-0x0000000002DA4000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
| MD5 | ceab66967b8dd47b31ce516f1768fa74 |
| SHA1 | e552e8aca681cc9e74e85f0cb203f674c2787d7a |
| SHA256 | 3f39cb2f31f92e5c60d6bbad8b43fb5fb277b04d07d832d744c36db4e1dcaa1d |
| SHA512 | 31abf0d06efbca7e079a16593c8a0fa2ac3438bb0fe3b526ee94e0ecab1eb3fe86f6aeb7ada42459b2b89fd4e6685f8174d6eef4656d513384186cf854c3ccba |
memory/2408-146-0x0000000002D50000-0x0000000002DA4000-memory.dmp
memory/2408-145-0x0000000002D50000-0x0000000002DA4000-memory.dmp
memory/2408-151-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1476-209-0x0000000000400000-0x0000000000454000-memory.dmp
memory/2408-249-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2848-248-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2804-247-0x0000000000400000-0x0000000000454000-memory.dmp
memory/1476-243-0x0000000000400000-0x0000000000454000-memory.dmp
memory/1476-175-0x00000000003D0000-0x00000000003D1000-memory.dmp
memory/1476-164-0x00000000003B0000-0x00000000003B1000-memory.dmp
memory/1476-154-0x0000000000390000-0x0000000000391000-memory.dmp
memory/2256-258-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2848-259-0x0000000000400000-0x0000000000414000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-07 05:22
Reported
2024-05-07 05:25
Platform
win10v2004-20240226-en
Max time kernel
154s
Max time network
160s
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\71523d4ed0a8d827f80c6d2e9ec825e0_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 |
| 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 |
| 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 |
| 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 5076 set thread context of 2464 | N/A | C:\Users\Admin\AppData\Local\Temp\71523d4ed0a8d827f80c6d2e9ec825e0_NEAS.exe | C:\Users\Admin\AppData\Local\Temp\71523d4ed0a8d827f80c6d2e9ec825e0_NEAS.exe |
| PID 3976 set thread context of 3360 | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe | C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe |
| PID 3976 set thread context of 3588 | 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\71523d4ed0a8d827f80c6d2e9ec825e0_NEAS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\71523d4ed0a8d827f80c6d2e9ec825e0_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\71523d4ed0a8d827f80c6d2e9ec825e0_NEAS.exe
"C:\Users\Admin\AppData\Local\Temp\71523d4ed0a8d827f80c6d2e9ec825e0_NEAS.exe"
C:\Users\Admin\AppData\Local\Temp\71523d4ed0a8d827f80c6d2e9ec825e0_NEAS.exe
"C:\Users\Admin\AppData\Local\Temp\71523d4ed0a8d827f80c6d2e9ec825e0_NEAS.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\KRVHF.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"
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=3104 --field-trial-handle=3060,i,1774866140584649235,8085848018931772189,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| GB | 142.250.200.42:443 | tcp | |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 77.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 68.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 13.107.246.64:443 | tcp | |
| US | 8.8.8.8:53 | 172.210.232.199.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 | udp | |
| US | 8.8.8.8:53 | udp | |
| US | 8.8.8.8:53 | udp | |
| US | 8.8.8.8:53 | udp | |
| US | 8.8.8.8:53 | udp | |
| US | 8.8.8.8:53 | udp | |
| N/A | 52.111.243.31:443 | tcp | |
| US | 8.8.8.8:53 | udp | |
| US | 8.8.8.8:53 | udp | |
| US | 8.8.8.8:53 | udp | |
| US | 8.8.8.8:53 | udp | |
| US | 8.8.8.8:53 | udp | |
| US | 8.8.8.8:53 | 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 | 170.117.168.52.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 |
Files
memory/5076-0-0x0000000000400000-0x0000000000454000-memory.dmp
memory/5076-3-0x0000000002A50000-0x0000000002A52000-memory.dmp
memory/5076-6-0x0000000002A80000-0x0000000002A82000-memory.dmp
memory/5076-5-0x0000000002A70000-0x0000000002A72000-memory.dmp
memory/2464-9-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2464-10-0x0000000000400000-0x000000000040B000-memory.dmp
memory/2464-7-0x0000000000400000-0x000000000040B000-memory.dmp
memory/5076-13-0x0000000000400000-0x0000000000454000-memory.dmp
memory/5076-4-0x0000000002A60000-0x0000000002A62000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\KRVHF.txt
| MD5 | 4eb61ec7816c34ec8c125acadc57ec1b |
| SHA1 | b0015cc865c0bb1a027be663027d3829401a31cc |
| SHA256 | 08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff |
| SHA512 | f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1 |
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
| MD5 | 93307a8ca7644cd3ef83e305d1693ad8 |
| SHA1 | 3ecf8e8bb3ae8c76ad2b96c8f81931ff723b8e83 |
| SHA256 | 5266671d91a45df381edc79cd5726861a481117f634b1bffec573331eff9bc22 |
| SHA512 | 831e4569d928f0862fab76436cf942f26efbb55e4bc28e0048fb53361c586b3388e1639198679691a6d39d0a49fac831eba29c5ac356133e99bc9cc8eb0c7ca3 |
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
| MD5 | 39410f0bf0691434d77c08916d029d46 |
| SHA1 | dd10575b15aa729fc7e220ba4969508487983978 |
| SHA256 | 8d3a211c7053e62a669b291e4df3502f79142d57d9aa68d4bebe14436dd3a05d |
| SHA512 | 23d228013738309659d8d96f97e47b7af59ba95f106d5cd35be8e82d96b77ad05d7868efb8e5ed25c7170c3cf6386762ff39c7fda6c36de0c9382bc955d09b2f |
memory/3976-34-0x0000000000400000-0x0000000000454000-memory.dmp
memory/2464-38-0x0000000000400000-0x000000000040B000-memory.dmp
memory/3588-44-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3588-51-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3588-53-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2464-55-0x0000000000400000-0x000000000040B000-memory.dmp
memory/3588-54-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3588-52-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3976-49-0x0000000000400000-0x0000000000454000-memory.dmp
memory/3976-39-0x0000000000400000-0x0000000000454000-memory.dmp
memory/3588-58-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3360-57-0x0000000000400000-0x000000000040B000-memory.dmp