Analysis
- max time kernel
130s - max time network
173s - platform
windows7_x64 - resource
win7-en-20211208 - submitted
07/02/2022, 15:32
General
- Target payment approval.doc.exe
- Size 802KB
- Sample220207-synfxsdgcp
- SHA256 64ca21e0f140ac9b7b2900671a26625b7e45daa829fd16e9e92893bf31e835fe
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
derarawfile10.ddns.net:1187
-
212.192.246250:1187
-
c48b433d-6e7a-4320-ac18-2f1271be71c2
-
activate_away_mode
true
-
backup_connection_host
212.192.246250
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2021-10-24T01:22:01.779231836Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
1187
-
default_group
Default
-
enable_debug_mode
true
-
gc_threshold
1.048576e+07
-
keep_alive_timeout
30000
-
keyboard_logging
false
-
lan_timeout
2500
-
max_packet_size
1.048576e+07
-
mutex
c48b433d-6e7a-4320-ac18-2f1271be71c2
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
derarawfile10.ddns.net
-
primary_dns_server
8.8.8.8
-
request_elevation
true
-
restart_delay
5000
-
run_delay
0
-
run_on_startup
false
-
set_critical_process
true
-
timeout_interval
5000
-
use_custom_dns_server
false
-
version
1.2.2.0
-
wan_timeout
8000
Signatures
- NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
- suricata: ET MALWARE Possible NanoCore C2 60B
suricata: ET MALWARE Possible NanoCore C2 60B
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Program Files directory 2 IoCs
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\payment approval.doc.exe"C:\Users\Admin\AppData\Local\Temp\payment approval.doc.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\payment approval.doc.exe"C:\Users\Admin\AppData\Local\Temp\payment approval.doc.exe"2⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/760-67-0x0000000000340000-0x000000000034A000-memory.dmp
memory/760-79-0x00000000006B0000-0x00000000006BE000-memory.dmp
memory/760-81-0x0000000000960000-0x0000000000974000-memory.dmp
memory/760-80-0x0000000000CE0000-0x0000000000D0E000-memory.dmp
memory/760-68-0x0000000000350000-0x000000000036E000-memory.dmp
memory/760-59-0x0000000000400000-0x0000000000438000-memory.dmp
memory/760-60-0x0000000000400000-0x0000000000438000-memory.dmp
memory/760-61-0x0000000000400000-0x0000000000438000-memory.dmp
memory/760-62-0x0000000000400000-0x0000000000438000-memory.dmp
memory/760-63-0x0000000000400000-0x0000000000438000-memory.dmp
memory/760-64-0x0000000000400000-0x0000000000438000-memory.dmp
memory/760-69-0x00000000003B0000-0x00000000003BA000-memory.dmp
memory/760-78-0x00000000006A0000-0x00000000006B4000-memory.dmp
memory/760-77-0x0000000000690000-0x00000000006A0000-memory.dmp
memory/760-66-0x0000000004FD0000-0x0000000004FD1000-memory.dmp
memory/760-70-0x00000000003E0000-0x00000000003EC000-memory.dmp
memory/760-71-0x00000000004B0000-0x00000000004CA000-memory.dmp
memory/760-72-0x0000000000510000-0x000000000051E000-memory.dmp
memory/760-73-0x0000000000520000-0x0000000000532000-memory.dmp
memory/760-74-0x0000000000660000-0x000000000066E000-memory.dmp
memory/760-76-0x0000000000680000-0x0000000000694000-memory.dmp
memory/760-75-0x0000000000670000-0x000000000067C000-memory.dmp
memory/964-54-0x0000000000DB0000-0x0000000000E7E000-memory.dmp
memory/964-55-0x0000000075891000-0x0000000075893000-memory.dmp
memory/964-58-0x0000000005150000-0x00000000051F4000-memory.dmp
memory/964-57-0x0000000000470000-0x000000000047C000-memory.dmp
memory/964-56-0x0000000000C00000-0x0000000000C01000-memory.dmp