Analysis
- max time kernel
138s - max time network
149s - platform
windows10_x64 - resource
win10v20201028 - submitted
15/01/2021, 06:13
General
- Target Doc#6620200947535257653.exe
- Size 907KB
- Sample210115-sewlna35ee
- SHA256 cce24ef5bce0ff17a08ef75abb9b0b0d61c8c3af663a3f01d552a4288008a027
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
185.157.160.233:2212
-
annapro.linkpc.net:2212
-
5c958888-f81c-42a4-939d-31983a2cd9ba
-
activate_away_mode
true
-
backup_connection_host
annapro.linkpc.net
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2020-10-24T06:39:59.095270636Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
2212
-
default_group
wuzzy122
-
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
5c958888-f81c-42a4-939d-31983a2cd9ba
-
mutex_timeout
5000
-
prevent_system_sleep
true
-
primary_connection_host
185.157.160.233
-
primary_dns_server
8.8.8.8
-
request_elevation
true
-
restart_delay
5000
-
run_delay
0
-
run_on_startup
true
-
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.
- Suspicious use of SetThreadContext 1 IoCs
- 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 4 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Doc#6620200947535257653.exe"C:\Users\Admin\AppData\Local\Temp\Doc#6620200947535257653.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GEIFZWugmA" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF9A8.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/4360-25-0x00000000059F0000-0x00000000059F3000-memory.dmp
memory/4360-24-0x0000000006050000-0x0000000006069000-memory.dmp
memory/4360-23-0x00000000056E0000-0x00000000056E5000-memory.dmp
memory/4360-16-0x0000000073530000-0x0000000073C1E000-memory.dmp
memory/4360-14-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4716-7-0x0000000004B20000-0x0000000004B21000-memory.dmp
memory/4716-11-0x00000000057C0000-0x000000000582B000-memory.dmp
memory/4716-10-0x0000000004D70000-0x0000000004D82000-memory.dmp
memory/4716-9-0x0000000004D10000-0x0000000004D11000-memory.dmp
memory/4716-8-0x0000000004A30000-0x0000000004A31000-memory.dmp
memory/4716-2-0x0000000073530000-0x0000000073C1E000-memory.dmp
memory/4716-6-0x0000000005020000-0x0000000005021000-memory.dmp
memory/4716-5-0x0000000004A80000-0x0000000004A81000-memory.dmp
memory/4716-3-0x0000000000130000-0x0000000000131000-memory.dmp