Analysis
-
max time kernel
121s -
max time network
130s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 01:36
General
-
Target
PO_OK120.scr
-
Size
819KB
-
MD5
a3da0503d87038ca6e6c02e56060ce3d
-
SHA1
b8c583973286d94a590e3d70fc41b76fbf854994
-
SHA256
ac5a853fbf0899cb5f628c1dfe1c153a13748c16fe009f5448d15a2fabcc8b65
-
SHA512
33e87fd19ebcaee7d4f521c55cecb5ba0c897d5ad327b46d47bb436fc4703b191024528b72283de07c10a0ca315a2e04a886b69a4cc6d2c3ed6e5cc6cd2e3e61
Malware Config
Signatures
-
AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
-
CoreEntity .NET Packer 1 IoCs
A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.
-
AgentTesla Payload 1 IoCs
-
ReZer0 packer 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
-
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
-
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
-
Suspicious behavior: EnumeratesProcesses 2 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\PO_OK120.scr"C:\Users\Admin\AppData\Local\Temp\PO_OK120.scr" /S1⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GOoAjxuZEogTsN" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2109.tmp"2⤵
- Creates scheduled task(s)
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\tmp2109.tmpFilesize
1KB
MD56d2e16f05e29d317438e9ff227a19321
SHA14c675cc00c985b267d97cabf9fb66ab84d4ab651
SHA2564326f6c43fcff28b2cbe875b41e57c6fd147e1036ee72d89b94dbb8c15248915
SHA512ae83299716c3a5c54d8971cbd118d482af5185535c639bb7ae8175f736de356c507b0126ec866cc531d2aeb404706c9e9c0f14b8f6739ad6f426944fb316e662
-
memory/1044-58-0x0000000000000000-mapping.dmp
-
memory/1444-54-0x0000000000BE0000-0x0000000000CB2000-memory.dmpFilesize
840KB
-
memory/1444-55-0x0000000075DE1000-0x0000000075DE3000-memory.dmpFilesize
8KB
-
memory/1444-56-0x0000000000370000-0x0000000000378000-memory.dmpFilesize
32KB
-
memory/1444-57-0x0000000000630000-0x0000000000684000-memory.dmpFilesize
336KB
-
memory/1444-60-0x0000000004EA0000-0x0000000004EEC000-memory.dmpFilesize
304KB