Analysis
- max time kernel
149s - max time network
149s - platform
windows10_x64 - resource
win10v20201028 - submitted
09/11/2020, 20:45
General
- Target 29138cb2b30e6f05bcb0144617f9f563.exe
- Size 418KB
- Sample201109-kfr4yf8b1a
- SHA256 d91e63352fd7d6d2d9f0f547cead82dff81cf5586540d65429a7b9e1fa13a15f
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
jventure.duckdns.org:4098
-
drbenz.duckdns.org:4098
-
e8322bca-f0f5-41f6-8930-9c7ab3544bce
-
activate_away_mode
true
-
backup_connection_host
drbenz.duckdns.org
- backup_dns_server
-
buffer_size
65535
-
build_time
2020-03-20T15:41:56.916296036Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
true
-
clear_zone_identifier
true
-
connect_delay
4000
-
connection_port
4098
-
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
e8322bca-f0f5-41f6-8930-9c7ab3544bce
-
mutex_timeout
5000
-
prevent_system_sleep
true
-
primary_connection_host
jventure.duckdns.org
- primary_dns_server
-
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.
- ServiceHost packer 1 IoCs
Detects ServiceHost packer used for .NET malware
- rezer0 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- 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 10 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\29138cb2b30e6f05bcb0144617f9f563.exe"C:\Users\Admin\AppData\Local\Temp\29138cb2b30e6f05bcb0144617f9f563.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\yvXgVGYGPgA" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3691.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\29138cb2b30e6f05bcb0144617f9f563.exe"{path}"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\29138cb2b30e6f05bcb0144617f9f563.exe"{path}"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\29138cb2b30e6f05bcb0144617f9f563.exe"{path}"2⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/580-5-0x00000000018A0000-0x00000000018AC000-memory.dmp
memory/580-4-0x0000000007F60000-0x0000000007F61000-memory.dmp
memory/580-0-0x0000000073F80000-0x000000007466E000-memory.dmp
memory/580-6-0x00000000080A0000-0x00000000080A1000-memory.dmp
memory/580-7-0x00000000089E0000-0x0000000008A1A000-memory.dmp
memory/580-1-0x0000000000D20000-0x0000000000D21000-memory.dmp
memory/580-3-0x0000000008380000-0x0000000008381000-memory.dmp
memory/3472-10-0x0000000000400000-0x0000000000438000-memory.dmp
memory/3472-13-0x0000000073F80000-0x000000007466E000-memory.dmp
memory/3472-19-0x0000000005370000-0x0000000005371000-memory.dmp
memory/3472-20-0x0000000005770000-0x0000000005775000-memory.dmp
memory/3472-21-0x0000000005800000-0x0000000005819000-memory.dmp
memory/3472-22-0x0000000005840000-0x0000000005843000-memory.dmp