Analysis
- max time kernel
150s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
31/01/2024, 10:45
General
- Target Fukuan Fuben_ China Construction Bank.pdf.scr
- Size 1.8MB
- Sample240131-mtr1naade4
- SHA256 26aef2d6e3ee8e83977b783b991fe4a56a5c3196ca14fc9efbc66591b9746604
Malware Config
Extracted
-
remcos
-
RemoteHost
-
172.96.14.67:9785
-
audio_folder
MicRecords
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
1
-
copy_file
remcos.exe
-
copy_folder
Remcos
-
delete_file
false
-
hide_file
false
-
hide_keylog_file
false
-
install_flag
false
-
keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-6W5HVR
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
- Remcos
Remcos is a closed-source remote control and surveillance software.
- ModiLoader Second Stage 1 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Fukuan Fuben_ China Construction Bank.pdf.scr"C:\Users\Admin\AppData\Local\Temp\Fukuan Fuben_ China Construction Bank.pdf.scr" /S1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\colorcpl.exeC:\Windows\System32\colorcpl.exe2⤵
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
memory/1012-20-0x0000000001000000-0x0000000002000000-memory.dmp
memory/1012-18-0x0000000001000000-0x0000000002000000-memory.dmp
memory/1012-25-0x0000000001000000-0x0000000002000000-memory.dmp
memory/1012-24-0x0000000001000000-0x0000000002000000-memory.dmp
memory/1012-23-0x0000000001000000-0x0000000002000000-memory.dmp
memory/1012-11-0x0000000001000000-0x0000000002000000-memory.dmp
memory/1012-12-0x0000000001000000-0x0000000002000000-memory.dmp
memory/1012-13-0x0000000001000000-0x0000000002000000-memory.dmp
memory/1012-22-0x0000000001000000-0x0000000002000000-memory.dmp
memory/1012-14-0x0000000001000000-0x0000000002000000-memory.dmp
memory/1012-17-0x0000000001000000-0x0000000002000000-memory.dmp
memory/1012-19-0x0000000001000000-0x0000000002000000-memory.dmp
memory/1012-21-0x0000000001000000-0x0000000002000000-memory.dmp
memory/3036-0-0x00000000023A0000-0x00000000023A1000-memory.dmp
memory/3036-1-0x00000000040E0000-0x00000000050E0000-memory.dmp
memory/3036-6-0x00000000023A0000-0x00000000023A1000-memory.dmp
memory/3036-4-0x0000000000400000-0x00000000005D2000-memory.dmp
memory/3036-2-0x00000000040E0000-0x00000000050E0000-memory.dmp