Analysis
- max time kernel
142s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20230703-en - resource tags
- submitted
04/07/2023, 06:24
General
- Target payment copy$10,200.exe
- Size 267KB
- Sample230704-g52rcabc83
- SHA256 7cd2ed629dd0e67f352edcb542ed9ed089b0e474a97701a4036a4c9b08b8f980
Malware Config
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Loads dropped DLL 1 IoCs
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- 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
- Adds Run key to start application 2 TTPs 1 IoCs
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- 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 3 IoCs
Processor information is often read in order to detect sandboxing environments.
- Enumerates system info in registry 2 TTPs 2 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k netsvcs -p1⤵
- Checks processor information in registry
- Enumerates system info in registry
-
C:\Users\Admin\AppData\Local\Temp\payment copy$10,200.exe"C:\Users\Admin\AppData\Local\Temp\payment copy$10,200.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\payment copy$10,200.exe"C:\Users\Admin\AppData\Local\Temp\payment copy$10,200.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
gqvbcvayag.dll
memory/2324-139-0x00000000022D0000-0x00000000022D2000-memory.dmp
memory/4612-150-0x0000000004970000-0x0000000004980000-memory.dmp
memory/4612-155-0x0000000004970000-0x0000000004980000-memory.dmp
memory/4612-142-0x0000000000400000-0x0000000000441000-memory.dmp
memory/4612-143-0x0000000004980000-0x0000000004F24000-memory.dmp
memory/4612-146-0x0000000000400000-0x0000000000441000-memory.dmp
memory/4612-147-0x0000000004970000-0x0000000004980000-memory.dmp
memory/4612-140-0x0000000000400000-0x0000000000441000-memory.dmp
memory/4612-151-0x0000000004970000-0x0000000004980000-memory.dmp
memory/4612-152-0x0000000004F90000-0x0000000004FF6000-memory.dmp
memory/4612-141-0x0000000000400000-0x0000000000441000-memory.dmp
memory/4612-156-0x0000000005CB0000-0x0000000005D00000-memory.dmp
memory/4612-157-0x0000000005D00000-0x0000000005EC2000-memory.dmp
memory/4612-158-0x0000000005EE0000-0x0000000005F72000-memory.dmp
memory/4612-159-0x0000000005FF0000-0x0000000005FFA000-memory.dmp
memory/4612-161-0x0000000004970000-0x0000000004980000-memory.dmp
memory/4612-162-0x0000000004970000-0x0000000004980000-memory.dmp
memory/4612-163-0x0000000004970000-0x0000000004980000-memory.dmp