Analysis
- max time kernel
66s - max time network
150s - platform
windows10_x64 - resource
win10v200722 - submitted
20/10/2020, 08:29
General
- Target URGENT #RFQ.exe
- Size 498KB
- Sample201020-zyce9hdmen
- SHA256 74e146d632dc58d77431cad79741fa43deabd0b79a2fcd30ac319227de69f5e9
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
185.140.53.251:1995
-
3e0f6cb7-91e5-4697-a175-861899d38d2f
-
activate_away_mode
true
-
backup_connection_host
185.140.53.251
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2020-07-31T02:36:20.073292836Z
-
bypass_user_account_control
false
-
bypass_user_account_control_data
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
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
1995
- default_group
-
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
3e0f6cb7-91e5-4697-a175-861899d38d2f
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
185.140.53.251
-
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.
- 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
- Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\URGENT #RFQ.exe"C:\Users\Admin\AppData\Local\Temp\URGENT #RFQ.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\URGENT #RFQ.exe"{path}"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
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "IMAP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7502.tmp"3⤵
- Creates scheduled task(s)
-
-
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "IMAP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp75FD.tmp"3⤵
- Creates scheduled task(s)
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/3220-23-0x00000000054A0000-0x00000000054A5000-memory.dmp
memory/3220-31-0x0000000006BA0000-0x0000000006BA6000-memory.dmp
memory/3220-38-0x0000000006E20000-0x0000000006E21000-memory.dmp
memory/3220-9-0x0000000000400000-0x0000000000438000-memory.dmp
memory/3220-37-0x0000000006C40000-0x0000000006C4F000-memory.dmp
memory/3220-12-0x00000000738A0000-0x0000000073F8E000-memory.dmp
memory/3220-36-0x0000000006C00000-0x0000000006C29000-memory.dmp
memory/3220-35-0x0000000006BF0000-0x0000000006BFA000-memory.dmp
memory/3220-34-0x0000000006BD0000-0x0000000006BDF000-memory.dmp
memory/3220-33-0x0000000006BC0000-0x0000000006BC9000-memory.dmp
memory/3220-32-0x0000000006BB0000-0x0000000006BBD000-memory.dmp
memory/3220-24-0x00000000054B0000-0x00000000054C9000-memory.dmp
memory/3220-25-0x0000000006500000-0x0000000006503000-memory.dmp
memory/3220-26-0x0000000006510000-0x000000000651D000-memory.dmp
memory/3220-27-0x0000000006520000-0x0000000006535000-memory.dmp
memory/3220-28-0x0000000006B60000-0x0000000006B66000-memory.dmp
memory/3220-29-0x0000000006B80000-0x0000000006B8C000-memory.dmp
memory/3220-30-0x0000000006B90000-0x0000000006B97000-memory.dmp
memory/3488-7-0x0000000005790000-0x00000000057A6000-memory.dmp
memory/3488-0-0x00000000738A0000-0x0000000073F8E000-memory.dmp
memory/3488-1-0x0000000000AE0000-0x0000000000AE1000-memory.dmp
memory/3488-3-0x00000000059E0000-0x00000000059E1000-memory.dmp
memory/3488-4-0x0000000005580000-0x0000000005581000-memory.dmp
memory/3488-5-0x00000000054E0000-0x00000000054E1000-memory.dmp
memory/3488-6-0x00000000057C0000-0x00000000057C1000-memory.dmp
memory/3488-8-0x0000000007940000-0x00000000079A1000-memory.dmp