Analysis
- max time kernel
59s - max time network
160s - platform
windows10_x64 - resource
win10v20210408 - submitted
02/08/2021, 07:56
General
- Target 8fa8f52dfc55d341300eff8e4c44ba33.exe
- Size 1.3MB
- Sample210802-89karx83b6
- SHA256 2c7da7ff43c90ae620fd5135c2ed34c7e644a9a1098bfb69f1dc6b8ab6410c9a
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
hhjhtggfr.duckdns.org:8234
-
dertrefg.duckdns.org:8234
-
6a1c2465-7ac5-4f1d-acc5-ef04fcf454c9
-
activate_away_mode
true
-
backup_connection_host
dertrefg.duckdns.org
-
backup_dns_server
dertrefg.duckdns.org
-
buffer_size
65535
-
build_time
2021-03-26T23:25:40.118592436Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
8234
-
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
6a1c2465-7ac5-4f1d-acc5-ef04fcf454c9
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
hhjhtggfr.duckdns.org
-
primary_dns_server
hhjhtggfr.duckdns.org
-
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
- 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 6 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\8fa8f52dfc55d341300eff8e4c44ba33.exe"C:\Users\Admin\AppData\Local\Temp\8fa8f52dfc55d341300eff8e4c44ba33.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\8fa8f52dfc55d341300eff8e4c44ba33.exe"C:\Users\Admin\AppData\Local\Temp\8fa8f52dfc55d341300eff8e4c44ba33.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/928-142-0x0000000006A60000-0x0000000006A66000-memory.dmp
memory/928-141-0x0000000006A50000-0x0000000006A57000-memory.dmp
memory/928-149-0x0000000006CD0000-0x0000000006CD1000-memory.dmp
memory/928-148-0x0000000006B00000-0x0000000006B0F000-memory.dmp
memory/928-136-0x0000000005480000-0x0000000005481000-memory.dmp
memory/928-147-0x0000000006AC0000-0x0000000006AE9000-memory.dmp
memory/928-146-0x0000000006AB0000-0x0000000006ABA000-memory.dmp
memory/928-135-0x0000000005990000-0x0000000005993000-memory.dmp
memory/928-124-0x0000000000400000-0x0000000000438000-memory.dmp
memory/928-144-0x0000000006A80000-0x0000000006A89000-memory.dmp
memory/928-133-0x0000000005800000-0x0000000005805000-memory.dmp
memory/928-143-0x0000000006A70000-0x0000000006A7D000-memory.dmp
memory/928-145-0x0000000006A90000-0x0000000006A9F000-memory.dmp
memory/928-134-0x0000000005810000-0x0000000005829000-memory.dmp
memory/928-137-0x0000000006290000-0x000000000629D000-memory.dmp
memory/928-138-0x00000000069F0000-0x0000000006A05000-memory.dmp
memory/928-139-0x0000000006A30000-0x0000000006A36000-memory.dmp
memory/928-140-0x0000000006A40000-0x0000000006A4C000-memory.dmp
memory/3128-120-0x0000000004F60000-0x0000000004F61000-memory.dmp
memory/3128-114-0x0000000000120000-0x0000000000121000-memory.dmp
memory/3128-117-0x0000000004C30000-0x0000000004C31000-memory.dmp
memory/3128-116-0x0000000005090000-0x0000000005091000-memory.dmp
memory/3128-123-0x0000000005040000-0x0000000005074000-memory.dmp
memory/3128-122-0x000000000AEA0000-0x000000000AF42000-memory.dmp
memory/3128-121-0x00000000046F0000-0x00000000046FD000-memory.dmp
memory/3128-119-0x0000000004BD0000-0x0000000004BD1000-memory.dmp
memory/3128-118-0x0000000004B90000-0x000000000508E000-memory.dmp