Analysis Overview
SHA256
360795c21e87bdcb8e998176999340b08678e6274dc1d3bd2d841d5c64f1e8aa
Threat Level: Known bad
The file 5157d8d5c583eea41772fb99793e13f9d7e3c3c2b0eb2cd876c65d1835cc8d8f.zip was found to be: Known bad.
Malicious Activity Summary
AsyncRat
Async RAT payload
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Suspicious use of SetThreadContext
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Delays execution with timeout.exe
Creates scheduled task(s)
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-02 11:27
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-02 11:27
Reported
2024-04-02 11:30
Platform
win7-20240221-en
Max time kernel
143s
Max time network
148s
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\SysWOW64\cmd.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3040 set thread context of 2700 | 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\msbuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.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
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp35DF.tmp.bat""
C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "svchos" /tr '"C:\Users\Admin\AppData\Roaming\svchos.exe"'
C:\Windows\SysWOW64\timeout.exe
timeout 3
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 |
| 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 |
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/3040-13-0x00000000008F0000-0x00000000008FC000-memory.dmp
memory/2144-14-0x00000000009C0000-0x00000000009D6000-memory.dmp
memory/3040-15-0x000007FEF5C70000-0x000007FEF665C000-memory.dmp
memory/2144-16-0x00000000747C0000-0x0000000074EAE000-memory.dmp
memory/3040-17-0x000000001B350000-0x000000001B3D0000-memory.dmp
memory/3040-18-0x00000000006D0000-0x000000000073A000-memory.dmp
memory/2548-19-0x0000000000400000-0x0000000000416000-memory.dmp
memory/2548-21-0x0000000000400000-0x0000000000416000-memory.dmp
memory/2548-25-0x0000000000400000-0x0000000000416000-memory.dmp
memory/2548-23-0x0000000000400000-0x0000000000416000-memory.dmp
memory/2700-36-0x0000000000400000-0x0000000000416000-memory.dmp
memory/2700-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2700-39-0x0000000000400000-0x0000000000416000-memory.dmp
memory/3040-38-0x000007FEF5C70000-0x000007FEF665C000-memory.dmp
memory/2700-41-0x0000000000400000-0x0000000000416000-memory.dmp
memory/2700-42-0x00000000747C0000-0x0000000074EAE000-memory.dmp
memory/2700-43-0x0000000004CB0000-0x0000000004CF0000-memory.dmp
memory/2144-44-0x0000000000980000-0x00000000009C0000-memory.dmp
memory/2700-45-0x0000000077B10000-0x0000000077B11000-memory.dmp
memory/2144-55-0x00000000747C0000-0x0000000074EAE000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp35DF.tmp.bat
| MD5 | 243d7a1f9e26bb0287f93f639f88edf9 |
| SHA1 | 7adff0b796ccfc3cdb70aa6cf0e1c1ee173dfd22 |
| SHA256 | 09323dc20ed1d5465513490acd5e067851814cb7bb750d83ba5e92470a90995e |
| SHA512 | 0a68a4428e889dccc5a0d1986ba6eff1a0980f4b267a66350d2696d906112e0080c3a0c1904d24d88974a403dc29f4e2f4e543e8c3ca0271f1adeb9d239cae2f |
memory/764-60-0x00000000747C0000-0x0000000074EAE000-memory.dmp
memory/764-59-0x0000000000190000-0x00000000001A6000-memory.dmp
memory/764-61-0x0000000004300000-0x0000000004340000-memory.dmp
memory/2700-62-0x00000000747C0000-0x0000000074EAE000-memory.dmp
memory/2700-63-0x0000000004CB0000-0x0000000004CF0000-memory.dmp
memory/764-64-0x00000000747C0000-0x0000000074EAE000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-02 11:27
Reported
2024-04-02 11:30
Platform
win10v2004-20240226-en
Max time kernel
147s
Max time network
155s
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 3244 set thread context of 2492 | 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:\Users\Admin\AppData\Local\Temp\start.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.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\tmp8B29.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=3276 --field-trial-handle=2588,i,14229658658073991926,6938034815163866135,262144 --variations-seed-version /prefetch:8
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 | 0.205.248.87.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 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 13.107.246.64:443 | tcp | |
| US | 8.8.8.8:53 | 24.66.18.2.in-addr.arpa | udp |
| 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 | 202.110.86.104.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 | 172.210.232.199.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 | chromewebstore.googleapis.com | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| GB | 142.250.187.202:443 | chromewebstore.googleapis.com | 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 | 202.187.250.142.in-addr.arpa | udp |
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/3244-21-0x0000020570F60000-0x0000020570F6C000-memory.dmp
memory/3244-23-0x00007FFB6F160000-0x00007FFB6FC21000-memory.dmp
memory/3244-25-0x0000020572C90000-0x0000020572CA0000-memory.dmp
memory/3532-24-0x0000000000660000-0x0000000000676000-memory.dmp
memory/3532-26-0x0000000074BC0000-0x0000000075370000-memory.dmp
memory/3244-27-0x0000020573520000-0x000002057358A000-memory.dmp
memory/3532-28-0x0000000004F40000-0x0000000004F50000-memory.dmp
memory/2492-29-0x0000000000400000-0x0000000000416000-memory.dmp
memory/2492-30-0x0000000074BC0000-0x0000000075370000-memory.dmp
memory/2492-31-0x0000000004CD0000-0x0000000004CE0000-memory.dmp
memory/3532-32-0x0000000005330000-0x00000000053CC000-memory.dmp
memory/3244-33-0x00007FFB6F160000-0x00007FFB6FC21000-memory.dmp
memory/2492-34-0x0000000077C01000-0x0000000077C02000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp8B29.tmp.bat
| MD5 | a375bd7e7381af0e299f6208f26ec47c |
| SHA1 | b09abe076d4c38ce62fc305b732ed4c147129b5c |
| SHA256 | 325abe593c04e978773f0fd07546dfcdb566806804cd13fe5a24b5a131782e36 |
| SHA512 | 72499f9266aa9b178fca5334a7cc861dcb2aa5f8252cb67fad1111a7eb7f781046be2d9c7d5f7f65df7d9cb5bf5361006408271f81d03f582044795aa35480c9 |
memory/3532-40-0x0000000074BC0000-0x0000000075370000-memory.dmp
memory/1624-44-0x0000000074BC0000-0x0000000075370000-memory.dmp
memory/1624-45-0x00000000054A0000-0x0000000005A44000-memory.dmp
memory/1624-46-0x00000000050D0000-0x0000000005162000-memory.dmp
memory/1624-47-0x0000000005080000-0x000000000508A000-memory.dmp
memory/2492-48-0x0000000074BC0000-0x0000000075370000-memory.dmp
memory/2492-49-0x0000000004CD0000-0x0000000004CE0000-memory.dmp
memory/1624-50-0x0000000074BC0000-0x0000000075370000-memory.dmp
memory/1624-51-0x0000000004BA0000-0x0000000004BB0000-memory.dmp