Analysis
- max time kernel
104s - max time network
127s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
16/05/2023, 10:51
General
- Target PO No. SER-RUB-0523-01-NS.xlsx.exe
- Size 563KB
- Sample230516-mxt97aad37
- SHA256 db5a4b5c89e2984ac0be6e61a93dcd9ab7bb42d81ca6083b4388ae962ec6ea27
Malware Config
Extracted
-
snakekeylogger
-
https://api.telegram.org/bot6221660400:AAGb-WADrhdDFxd9kxzjtg3jdDw9-uvNVlM/sendMessage?chat_id=6200392710
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 2 IoCs
- StormKitty
StormKitty is an open source info stealer written in C#.
- StormKitty payload 1 IoCs
- 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.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 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 No. SER-RUB-0523-01-NS.xlsx.exe"C:\Users\Admin\AppData\Local\Temp\PO No. SER-RUB-0523-01-NS.xlsx.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\PO No. SER-RUB-0523-01-NS.xlsx.exe"C:\Users\Admin\AppData\Local\Temp\PO No. SER-RUB-0523-01-NS.xlsx.exe"2⤵
- Accesses Microsoft Outlook profiles
- 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
PO No. SER-RUB-0523-01-NS.xlsx.exe.log
memory/64-140-0x0000000000400000-0x0000000000426000-memory.dmp
memory/64-143-0x0000000004FF0000-0x0000000005000000-memory.dmp
memory/64-144-0x0000000004FF0000-0x0000000005000000-memory.dmp
memory/4896-133-0x0000000000490000-0x0000000000522000-memory.dmp
memory/4896-134-0x00000000053D0000-0x0000000005974000-memory.dmp
memory/4896-135-0x0000000004F00000-0x0000000004F92000-memory.dmp
memory/4896-136-0x0000000004EF0000-0x0000000004EFA000-memory.dmp
memory/4896-137-0x0000000005170000-0x0000000005180000-memory.dmp
memory/4896-138-0x0000000005170000-0x0000000005180000-memory.dmp
memory/4896-139-0x0000000006980000-0x0000000006A1C000-memory.dmp