Analysis
- max time kernel
29s - max time network
32s - platform
windows7_x64 - resource
win7-20230220-en - resource tags
- submitted
13/04/2023, 04:37
General
- Target 84572342b63722bec9aa780e7290dd05.exe
- Size 7.0MB
- Sample230413-e8sxhahd39
- SHA256 71b1e17a2aa5eb3f0c6b51671ad2a1bc705042152c4ab74db3e15d4e5a68d0d8
Malware Config
Extracted
-
azorult
-
http://195.245.112.115/index.php
Signatures
- Azorult
An information stealer that was first discovered in 2016, targeting browsing history and passwords.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Deletes itself 1 IoCs
- Loads dropped DLL 16 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Delays execution with timeout.exe 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 22 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\84572342b63722bec9aa780e7290dd05.exe"C:\Users\Admin\AppData\Local\Temp\84572342b63722bec9aa780e7290dd05.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\84572342b63722bec9aa780e7290dd05.exeC:\Users\Admin\AppData\Local\Temp\84572342b63722bec9aa780e7290dd05.exe2⤵
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C:\Users\Admin\AppData\Local\Temp\84572342b63722bec9aa780e7290dd05.exeC:\Users\Admin\AppData\Local\Temp\84572342b63722bec9aa780e7290dd05.exe2⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c C:\Windows\system32\timeout.exe 3 & del "84572342b63722bec9aa780e7290dd05.exe"3⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exeC:\Windows\system32\timeout.exe 34⤵
- Delays execution with timeout.exe
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
api-ms-win-crt-convert-l1-1-0.dll
api-ms-win-crt-environment-l1-1-0.dll
api-ms-win-crt-filesystem-l1-1-0.dll
api-ms-win-crt-heap-l1-1-0.dll
api-ms-win-crt-locale-l1-1-0.dll
api-ms-win-crt-math-l1-1-0.dll
api-ms-win-crt-multibyte-l1-1-0.dll
api-ms-win-crt-runtime-l1-1-0.dll
api-ms-win-crt-stdio-l1-1-0.dll
api-ms-win-crt-string-l1-1-0.dll
api-ms-win-crt-time-l1-1-0.dll
api-ms-win-crt-utility-l1-1-0.dll
mozglue.dll
msvcp140.dll
nss3.dll
vcruntime140.dll
memory/656-60-0x0000000000400000-0x0000000000420000-memory.dmp
memory/656-197-0x0000000000400000-0x0000000000420000-memory.dmp
memory/656-67-0x0000000000400000-0x0000000000420000-memory.dmp
memory/656-65-0x0000000000400000-0x0000000000420000-memory.dmp
memory/656-64-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/656-63-0x0000000000400000-0x0000000000420000-memory.dmp
memory/656-68-0x0000000000400000-0x0000000000420000-memory.dmp
memory/656-61-0x0000000000400000-0x0000000000420000-memory.dmp
memory/656-62-0x0000000000400000-0x0000000000420000-memory.dmp
memory/656-59-0x0000000000400000-0x0000000000420000-memory.dmp
memory/1408-58-0x00000000047E0000-0x0000000004872000-memory.dmp
memory/1408-56-0x0000000004DE0000-0x0000000004E20000-memory.dmp
memory/1408-57-0x0000000000520000-0x0000000000540000-memory.dmp
memory/1408-55-0x00000000050E0000-0x0000000005222000-memory.dmp
memory/1408-54-0x0000000000940000-0x000000000104C000-memory.dmp