Analysis Overview
SHA256
95e0b0b73c40be7badf5b5d31cc4da1ffe87b582fa2fbcb8615367e99cd44366
Threat Level: Known bad
The file 5157d8d5c583eea41772fb99793e13f9d7e3c3c2b0eb2cd876c65d1835cc8d8f.zip was found to be: Known bad.
Malicious Activity Summary
AsyncRat
Async RAT payload
Executes dropped EXE
Checks computer location settings
Loads dropped DLL
Suspicious use of SetThreadContext
Enumerates physical storage devices
Unsigned PE
Delays execution with timeout.exe
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-02 13:14
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-02 13:14
Reported
2024-04-02 13:17
Platform
win7-20240319-en
Max time kernel
145s
Max time network
151s
Command Line
Signatures
AsyncRat
Async RAT payload
| 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\Local\Temp\pop3.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\start.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\svchos.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\5157d8d5c583eea41772fb99793e13f9d7e3c3c2b0eb2cd876c65d1835cc8d8f.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\5157d8d5c583eea41772fb99793e13f9d7e3c3c2b0eb2cd876c65d1835cc8d8f.exe | N/A |
| N/A | N/A | C:\Windows\system32\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\system32\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\system32\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\system32\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\system32\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2916 set thread context of 2764 | N/A | C:\Users\Admin\AppData\Local\Temp\pop3.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\timeout.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\start.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\start.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\start.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\svchos.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\start.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\svchos.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\svchos.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\5157d8d5c583eea41772fb99793e13f9d7e3c3c2b0eb2cd876c65d1835cc8d8f.exe
"C:\Users\Admin\AppData\Local\Temp\5157d8d5c583eea41772fb99793e13f9d7e3c3c2b0eb2cd876c65d1835cc8d8f.exe"
C:\Users\Admin\AppData\Local\Temp\pop3.exe
"C:\Users\Admin\AppData\Local\Temp\pop3.exe"
C:\Users\Admin\AppData\Local\Temp\start.exe
"C:\Users\Admin\AppData\Local\Temp\start.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 2916 -s 720
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchos" /tr '"C:\Users\Admin\AppData\Roaming\svchos.exe"' & exit
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp50EE.tmp.bat""
C:\Windows\SysWOW64\timeout.exe
timeout 3
C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "svchos" /tr '"C:\Users\Admin\AppData\Roaming\svchos.exe"'
C:\Users\Admin\AppData\Roaming\svchos.exe
"C:\Users\Admin\AppData\Roaming\svchos.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | blue.o7lab.me | udp |
| NL | 94.156.66.112:4449 | blue.o7lab.me | tcp |
| US | 8.8.8.8:53 | leetboy.dynuddns.net | udp |
| NL | 91.92.249.94:1339 | leetboy.dynuddns.net | tcp |
| NL | 94.156.66.112:4449 | blue.o7lab.me | tcp |
| NL | 91.92.249.94:1339 | leetboy.dynuddns.net | tcp |
| NL | 94.156.66.112:4449 | blue.o7lab.me | tcp |
| NL | 91.92.249.94:1339 | leetboy.dynuddns.net | tcp |
| NL | 94.156.66.112:4449 | blue.o7lab.me | tcp |
| NL | 91.92.249.94:1339 | leetboy.dynuddns.net | tcp |
| NL | 94.156.66.112:4449 | blue.o7lab.me | tcp |
| NL | 91.92.249.94:1339 | leetboy.dynuddns.net | tcp |
| NL | 94.156.66.112:4449 | blue.o7lab.me | tcp |
| US | 8.8.8.8:53 | leetboy.dynuddns.net | udp |
| NL | 91.92.249.94:1339 | leetboy.dynuddns.net | tcp |
Files
\Users\Admin\AppData\Local\Temp\pop3.exe
| MD5 | 8cd2675e19a8b1dccf0dbf082f42ab33 |
| SHA1 | 3b6a8a51f53d8ec6e773f2a28f80fb003311597b |
| SHA256 | 392ca70b63b6db8e0dc3aab0b6506169d5d9d2cad36598d037794be5a82bec09 |
| SHA512 | b4260fe93196d71f38ab386a17db0ac91a1116ef155771f789579d3150b4c74abb23f289bc042ced1fe7b905f1f1645435837223b3ca331d1e1d55c7eb4a5711 |
\Users\Admin\AppData\Local\Temp\start.exe
| MD5 | c1ade258f05c512e98ebc4d9d1165f8a |
| SHA1 | acf20f6a7dc7841ae06f801b887289fdc99e0488 |
| SHA256 | 447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759 |
| SHA512 | 5b652e0ef6293d7baeb7e9d8b79322ec65e98d748e1df492099fa6692d0bbc78f032df68e7028a28af06b5c27394456159351a6469fdaf777e6eb98609331076 |
memory/2916-13-0x0000000000C90000-0x0000000000C9C000-memory.dmp
memory/2916-15-0x000007FEF5890000-0x000007FEF627C000-memory.dmp
memory/1164-14-0x0000000000C10000-0x0000000000C26000-memory.dmp
memory/1164-16-0x0000000074220000-0x000000007490E000-memory.dmp
memory/2916-17-0x000000001B1B0000-0x000000001B230000-memory.dmp
memory/2916-18-0x00000000020A0000-0x000000000210A000-memory.dmp
memory/2764-19-0x0000000000400000-0x0000000000416000-memory.dmp
memory/2764-21-0x0000000000400000-0x0000000000416000-memory.dmp
memory/2764-23-0x0000000000400000-0x0000000000416000-memory.dmp
memory/2764-25-0x0000000000400000-0x0000000000416000-memory.dmp
memory/2764-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2764-28-0x0000000000400000-0x0000000000416000-memory.dmp
memory/2764-30-0x0000000000400000-0x0000000000416000-memory.dmp
memory/2764-32-0x0000000000400000-0x0000000000416000-memory.dmp
memory/2764-33-0x0000000074220000-0x000000007490E000-memory.dmp
memory/1164-38-0x0000000004AA0000-0x0000000004AE0000-memory.dmp
memory/2764-40-0x00000000005F0000-0x0000000000630000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp50EE.tmp.bat
| MD5 | 5f0ea4f1a80e9bd1ddbaa93f3d91c71f |
| SHA1 | 12e268a8c19708efe6c1636849b610a4f874c575 |
| SHA256 | 1d94fc6ac7c1d43e011431e4f5f3474fceaffe9f7d4901d65b74d5d170ba50ee |
| SHA512 | bb16ba9bf6f58e0753743e3904d18eae0ff0c6812d8b22a5ab8bc0b1d9f75c9922c45918001761b13b9bc829dde3f0c599c5d0caaeeb4d4fb7ceee153a11098c |
memory/2764-49-0x0000000077450000-0x0000000077451000-memory.dmp
memory/1164-51-0x0000000074220000-0x000000007490E000-memory.dmp
memory/1924-55-0x0000000000240000-0x0000000000256000-memory.dmp
memory/1924-56-0x0000000074220000-0x000000007490E000-memory.dmp
memory/2916-57-0x000007FEF5890000-0x000007FEF627C000-memory.dmp
memory/1924-58-0x0000000004730000-0x0000000004770000-memory.dmp
memory/2916-59-0x000000001B1B0000-0x000000001B230000-memory.dmp
memory/2764-60-0x0000000074220000-0x000000007490E000-memory.dmp
memory/2764-61-0x00000000005F0000-0x0000000000630000-memory.dmp
memory/1924-62-0x0000000074220000-0x000000007490E000-memory.dmp
memory/1924-63-0x0000000004730000-0x0000000004770000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-02 13:14
Reported
2024-04-02 13:17
Platform
win10v2004-20240226-en
Max time kernel
147s
Max time network
158s
Command Line
Signatures
AsyncRat
Async RAT payload
| Description | Indicator | Process | Target |
| 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-1-5-21-1904519900-954640453-4250331663-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\5157d8d5c583eea41772fb99793e13f9d7e3c3c2b0eb2cd876c65d1835cc8d8f.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\start.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\pop3.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\start.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\svchos.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 536 set thread context of 3808 | N/A | C:\Users\Admin\AppData\Local\Temp\pop3.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\timeout.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\start.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\svchos.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\svchos.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\5157d8d5c583eea41772fb99793e13f9d7e3c3c2b0eb2cd876c65d1835cc8d8f.exe
"C:\Users\Admin\AppData\Local\Temp\5157d8d5c583eea41772fb99793e13f9d7e3c3c2b0eb2cd876c65d1835cc8d8f.exe"
C:\Users\Admin\AppData\Local\Temp\pop3.exe
"C:\Users\Admin\AppData\Local\Temp\pop3.exe"
C:\Users\Admin\AppData\Local\Temp\start.exe
"C:\Users\Admin\AppData\Local\Temp\start.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchos" /tr '"C:\Users\Admin\AppData\Roaming\svchos.exe"' & exit
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp91D0.tmp.bat""
C:\Windows\SysWOW64\timeout.exe
timeout 3
C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "svchos" /tr '"C:\Users\Admin\AppData\Roaming\svchos.exe"'
C:\Users\Admin\AppData\Roaming\svchos.exe
"C:\Users\Admin\AppData\Roaming\svchos.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=1404 --field-trial-handle=3488,i,1267426273081718772,6254127258555406296,262144 --variations-seed-version /prefetch:8
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 | 172.210.232.199.in-addr.arpa | udp |
| NL | 52.142.223.178:80 | tcp | |
| US | 8.8.8.8:53 | 76.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | blue.o7lab.me | udp |
| NL | 94.156.66.112:4449 | blue.o7lab.me | tcp |
| US | 8.8.8.8:53 | leetboy.dynuddns.net | udp |
| NL | 91.92.249.94:1339 | leetboy.dynuddns.net | tcp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| NL | 94.156.66.112:4449 | blue.o7lab.me | tcp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 35.34.16.2.in-addr.arpa | udp |
| NL | 91.92.249.94:1339 | leetboy.dynuddns.net | tcp |
| NL | 94.156.66.112:4449 | blue.o7lab.me | tcp |
| US | 8.8.8.8:53 | 218.110.86.104.in-addr.arpa | udp |
| NL | 91.92.249.94:1339 | leetboy.dynuddns.net | tcp |
| NL | 94.156.66.112:4449 | blue.o7lab.me | tcp |
| US | 8.8.8.8:53 | 251.110.86.104.in-addr.arpa | udp |
| NL | 91.92.249.94:1339 | leetboy.dynuddns.net | tcp |
| NL | 94.156.66.112:4449 | blue.o7lab.me | tcp |
| NL | 91.92.249.94:1339 | leetboy.dynuddns.net | tcp |
| NL | 94.156.66.112:4449 | blue.o7lab.me | tcp |
| US | 8.8.8.8:53 | leetboy.dynuddns.net | udp |
| NL | 91.92.249.94:1339 | leetboy.dynuddns.net | tcp |
Files
C:\Users\Admin\AppData\Local\Temp\pop3.exe
| MD5 | 8cd2675e19a8b1dccf0dbf082f42ab33 |
| SHA1 | 3b6a8a51f53d8ec6e773f2a28f80fb003311597b |
| SHA256 | 392ca70b63b6db8e0dc3aab0b6506169d5d9d2cad36598d037794be5a82bec09 |
| SHA512 | b4260fe93196d71f38ab386a17db0ac91a1116ef155771f789579d3150b4c74abb23f289bc042ced1fe7b905f1f1645435837223b3ca331d1e1d55c7eb4a5711 |
C:\Users\Admin\AppData\Local\Temp\start.exe
| MD5 | c1ade258f05c512e98ebc4d9d1165f8a |
| SHA1 | acf20f6a7dc7841ae06f801b887289fdc99e0488 |
| SHA256 | 447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759 |
| SHA512 | 5b652e0ef6293d7baeb7e9d8b79322ec65e98d748e1df492099fa6692d0bbc78f032df68e7028a28af06b5c27394456159351a6469fdaf777e6eb98609331076 |
memory/536-22-0x000001C3B5070000-0x000001C3B507C000-memory.dmp
memory/4248-23-0x0000000000F00000-0x0000000000F16000-memory.dmp
memory/536-24-0x00007FFF051D0000-0x00007FFF05C91000-memory.dmp
memory/536-25-0x000001C3B6D70000-0x000001C3B6D80000-memory.dmp
memory/4248-26-0x0000000074880000-0x0000000075030000-memory.dmp
memory/536-27-0x000001C3D02E0000-0x000001C3D034A000-memory.dmp
memory/3808-28-0x0000000000400000-0x0000000000416000-memory.dmp
memory/3808-29-0x0000000074880000-0x0000000075030000-memory.dmp
memory/3808-30-0x00000000051A0000-0x00000000051B0000-memory.dmp
memory/536-31-0x00007FFF051D0000-0x00007FFF05C91000-memory.dmp
memory/4248-32-0x00000000059C0000-0x00000000059D0000-memory.dmp
memory/3808-33-0x00000000771F1000-0x00000000771F2000-memory.dmp
memory/4248-34-0x0000000005BD0000-0x0000000005C6C000-memory.dmp
memory/4248-39-0x0000000074880000-0x0000000075030000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp91D0.tmp.bat
| MD5 | 799380b82bcd2097f0b3ec01f168b027 |
| SHA1 | a2f7f745751869e748a72d5cbc8e8148d05c15d0 |
| SHA256 | 2d629508dfb8dc7efce22bdd72fb9f83cbabcdf7e0f0331026dc667aec4b9ab2 |
| SHA512 | 0d287881600fb00f92bfe3c6948a28373bb7e60b7c5beb51eb086d4cfc8203e9e650846442fe09a2ccad556d76c8c7a2426ae03ab9bd86235d2537feced6d0af |
memory/396-44-0x0000000074880000-0x0000000075030000-memory.dmp
memory/396-45-0x0000000005590000-0x0000000005B34000-memory.dmp
memory/396-46-0x0000000005180000-0x0000000005212000-memory.dmp
memory/396-47-0x0000000005220000-0x000000000522A000-memory.dmp
memory/3808-48-0x0000000074880000-0x0000000075030000-memory.dmp
memory/3808-49-0x00000000051A0000-0x00000000051B0000-memory.dmp
memory/396-50-0x0000000074880000-0x0000000075030000-memory.dmp
memory/396-51-0x0000000004A30000-0x0000000004A40000-memory.dmp