Analysis
- max time kernel
143s - max time network
143s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
07/08/2024, 10:01
General
- Target IMG_TENTATIVE_AUDIT_PLAN.exe
- Size 505KB
- Sample240807-l2ql5azfma
- SHA256 41e39c9347ae609ed82773dcf1c9a94848e6351dd1d93ca6d69225d684dba6d2
Malware Config
Extracted
-
snakekeylogger
-
https://api.telegram.org/bot7172509757:AAGTWM1LKs8B6DtC18DBKFCJaAVqnqiIdnw/sendMessage?chat_id=1105271645
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 2 IoCs
- Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
- Loads dropped DLL 7 IoCs
- 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
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Drops file in System32 directory 1 IoCs
- Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Program Files directory 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\IMG_TENTATIVE_AUDIT_PLAN.exe"C:\Users\Admin\AppData\Local\Temp\IMG_TENTATIVE_AUDIT_PLAN.exe"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\IMG_TENTATIVE_AUDIT_PLAN.exe"C:\Users\Admin\AppData\Local\Temp\IMG_TENTATIVE_AUDIT_PLAN.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
LangDLL.dll
System.dll
memory/1084-42-0x0000000037000000-0x00000000371C2000-memory.dmp
memory/1084-38-0x00000000361B0000-0x0000000036754000-memory.dmp
memory/1084-47-0x00000000372B0000-0x00000000372BA000-memory.dmp
memory/1084-34-0x00000000016F0000-0x0000000003824000-memory.dmp
memory/1084-35-0x0000000000490000-0x00000000016E4000-memory.dmp
memory/1084-46-0x00000000371F0000-0x0000000037282000-memory.dmp
memory/1084-37-0x0000000000490000-0x00000000004B6000-memory.dmp
memory/1084-44-0x00000000016F0000-0x0000000003824000-memory.dmp
memory/1084-39-0x0000000036100000-0x000000003619C000-memory.dmp
memory/1084-41-0x0000000036FB0000-0x0000000037000000-memory.dmp
memory/4736-31-0x0000000004A40000-0x0000000006B74000-memory.dmp
memory/4736-32-0x0000000077811000-0x0000000077931000-memory.dmp
memory/4736-36-0x0000000004A40000-0x0000000006B74000-memory.dmp
memory/4736-33-0x0000000074675000-0x0000000074676000-memory.dmp