Analysis
- max time kernel
136s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
09/06/2023, 08:26
General
- Target 5acd030fa8d6773c21b19a4468727d05.exe
- Size 770KB
- Sample230609-kbvbysbf43
- SHA256 8ef00db9712f487dc2bd4329378cb38ba2d1706284658e5e77602cb180ca82d7
Malware Config
Extracted
-
azorult
-
http://bllsl4.shop/DBO3/index.php
Signatures
- Azorult
An information stealer that was first discovered in 2016, targeting browsing history and passwords.
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Checks QEMU agent file 2 TTPs 2 IoCs
Checks presence of QEMU agent, possibly to detect virtualization.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL 7 IoCs
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- 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 NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 behavior: MapViewOfSection 1 IoCs
- Suspicious use of WriteProcessMemory 10 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\5acd030fa8d6773c21b19a4468727d05.exe"C:\Users\Admin\AppData\Local\Temp\5acd030fa8d6773c21b19a4468727d05.exe"1⤵
- Checks QEMU agent file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\5acd030fa8d6773c21b19a4468727d05.exe"C:\Users\Admin\AppData\Local\Temp\5acd030fa8d6773c21b19a4468727d05.exe"2⤵
- Checks QEMU agent file
- Checks computer location settings
- Loads dropped DLL
- Accesses Microsoft Outlook profiles
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c C:\Windows\system32\timeout.exe 3 & del "5acd030fa8d6773c21b19a4468727d05.exe"3⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\timeout.exeC:\Windows\system32\timeout.exe 34⤵
- Delays execution with timeout.exe
-
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
mozglue.dll
msvcp140.dll
nss3.dll
vcruntime140.dll
vcruntime140.dll
System.dll
System.dll
System.dll
Vintertid.lnk
memory/1280-167-0x0000000001660000-0x0000000002934000-memory.dmp
memory/1280-166-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1280-168-0x0000000032940000-0x0000000032967000-memory.dmp
memory/1280-162-0x0000000001660000-0x0000000002934000-memory.dmp
memory/1280-158-0x0000000001660000-0x0000000002934000-memory.dmp
memory/1280-157-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1280-230-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1280-279-0x0000000001660000-0x0000000002934000-memory.dmp
memory/1280-280-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4444-156-0x0000000003370000-0x0000000004644000-memory.dmp
memory/4444-155-0x0000000003370000-0x0000000004644000-memory.dmp