Analysis
- max time kernel
133s - max time network
118s - platform
windows10_x64 - resource
win10-en-20211014 - submitted
14/11/2021, 14:58
General
- Target PO 14086 & 14117.exe
- Size 780KB
- Sample211114-sb77taged8
- SHA256 9ffff542424c27e44cd1c0ae15166fbd66f2802dd41728b55ebbf0f812d10952
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.yandex.com
-
Port
587
-
Username
-
Password
suzanaynadex
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 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
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: RenamesItself 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\PO 14086 & 14117.exe"C:\Users\Admin\AppData\Local\Temp\PO 14086 & 14117.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\PO 14086 & 14117.exe"C:\Users\Admin\AppData\Local\Temp\PO 14086 & 14117.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1496-124-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1496-136-0x00000000055E1000-0x00000000055E2000-memory.dmp
memory/1496-133-0x00000000062F0000-0x00000000062F1000-memory.dmp
memory/1496-132-0x0000000005760000-0x0000000005761000-memory.dmp
memory/1496-131-0x00000000055E0000-0x00000000055E1000-memory.dmp
memory/3960-119-0x0000000004E40000-0x0000000004E41000-memory.dmp
memory/3960-123-0x0000000008730000-0x0000000008783000-memory.dmp
memory/3960-122-0x0000000008590000-0x0000000008591000-memory.dmp
memory/3960-121-0x0000000005490000-0x0000000005495000-memory.dmp
memory/3960-120-0x0000000002760000-0x0000000002761000-memory.dmp
memory/3960-115-0x00000000003B0000-0x00000000003B1000-memory.dmp
memory/3960-118-0x0000000002780000-0x0000000002781000-memory.dmp
memory/3960-117-0x00000000054A0000-0x00000000054A1000-memory.dmp