Analysis
-
max time kernel
145s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
-
submitted
17-05-2023 08:49
General
-
Target
vbc.exe
-
Size
267KB
-
MD5
9cf450fc0f69cccd0aa1e7059ff464c6
-
SHA1
b5eab54534e0465d243fd07cec0cfe9e2f1cd8b9
-
SHA256
bebd0c5009a5b0b0a06fbe0020bd6f083ed90509771dbf1f8010e19e527bf464
-
SHA512
d719450e3ae0ab4d7d8632cb566bdea00765e7b198f664af97323ec1a1f8898e20fd657402adb412bb4020d2c82335f6e3adf3b26402445a7a01c711b2a14ce1
-
SSDEEP
6144:PYa6CNNIp895RaWAYVpPq73EKdmQO9ND8YkY80qd5pq:PY8Nqp895Ra/aBq73boQO9l8YkLo
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.
-
Uses the VBS compiler for execution 1 TTPs
-
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).
-
Suspicious behavior: MapViewOfSection 1 IoCs
-
Suspicious use of AdjustPrivilegeToken 1 IoCs
-
Suspicious use of WriteProcessMemory 4 IoCs
-
outlook_office_path 1 IoCs
-
outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\vbc.exe"C:\Users\Admin\AppData\Local\Temp\vbc.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\vbc.exe"C:\Users\Admin\AppData\Local\Temp\vbc.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
5KB
MD5f7dadaebfec470c9004545feb704f34c
SHA14b362f96148f1fd18cb976b73397d8819931d019
SHA25689c8dbf2830d48d084724fa232c3255f65c1eaabed3a483810a3c8643a6844b1
SHA512f9f1143071ed63d03c03941de704bab83fd64cdc969dbc9aa3270a29ab5f80f74f4cf4fb69f08eac47027a1b9c6e8690f9e9c1d7dbca371cb0f61bf34ab8b60c
-
Filesize
12KB
-
Filesize
64KB
-
Filesize
584KB
-
Filesize
260KB
-
Filesize
260KB
-
Filesize
5.6MB
-
Filesize
408KB
-
Filesize
260KB
-
Filesize
64KB
-
Filesize
64KB
-
Filesize
260KB
-
Filesize
40KB
-
Filesize
320KB
-
Filesize
1.8MB
-
Filesize
64KB
-
Filesize
64KB
-
Filesize
64KB
-
Filesize
64KB