Analysis
- max time kernel
106s - max time network
150s - platform
windows10_x64 - resource
win10-en-20211104 - submitted
15/11/2021, 06:22
General
- Target Payment Slip pdf.exe
- Size 787KB
- Sample211115-g4xe8secfp
- SHA256 4a87512a48ce1d4b32e3a86365697f92b16d6637c9df9cb48b217b218c199446
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
sirohmsgm.duckdns.org:333
-
840335b2-68f6-4cd0-aaf6-314a951bee56
-
activate_away_mode
true
- backup_connection_host
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2021-08-22T22:22:53.390172036Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
333
-
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
840335b2-68f6-4cd0-aaf6-314a951bee56
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
sirohmsgm.duckdns.org
-
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.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- 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 15 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 23 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Payment Slip pdf.exe"C:\Users\Admin\AppData\Local\Temp\Payment Slip pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\FpqfExYEqHC.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FpqfExYEqHC" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3AB3.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\Payment Slip pdf.exe"C:\Users\Admin\AppData\Local\Temp\Payment Slip pdf.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\Payment Slip pdf.exe"C:\Users\Admin\AppData\Local\Temp\Payment Slip pdf.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\Payment Slip pdf.exe"C:\Users\Admin\AppData\Local\Temp\Payment Slip pdf.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\Payment Slip pdf.exe"C:\Users\Admin\AppData\Local\Temp\Payment Slip pdf.exe"2⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/372-158-0x00000000065B0000-0x00000000065B6000-memory.dmp
memory/372-157-0x0000000006570000-0x0000000006585000-memory.dmp
memory/372-164-0x0000000006610000-0x000000000661F000-memory.dmp
memory/372-162-0x00000000065F0000-0x00000000065FD000-memory.dmp
memory/372-163-0x0000000006600000-0x0000000006609000-memory.dmp
memory/372-161-0x00000000065E0000-0x00000000065E7000-memory.dmp
memory/372-159-0x00000000065C0000-0x00000000065CC000-memory.dmp
memory/372-160-0x00000000065D0000-0x00000000065D6000-memory.dmp
memory/372-150-0x0000000005590000-0x0000000005595000-memory.dmp
memory/372-165-0x0000000006630000-0x000000000663A000-memory.dmp
memory/372-167-0x0000000006680000-0x000000000668F000-memory.dmp
memory/372-156-0x0000000006560000-0x000000000656D000-memory.dmp
memory/372-154-0x0000000004FC0000-0x0000000005052000-memory.dmp
memory/372-153-0x0000000005D00000-0x0000000005D03000-memory.dmp
memory/372-152-0x0000000005CD0000-0x0000000005CE9000-memory.dmp
memory/372-136-0x0000000000400000-0x0000000000438000-memory.dmp
memory/372-166-0x0000000006640000-0x0000000006669000-memory.dmp
memory/872-130-0x00000000002C0000-0x00000000002C1000-memory.dmp
memory/872-143-0x0000000006EC0000-0x0000000006EC1000-memory.dmp
memory/872-147-0x0000000007600000-0x0000000007601000-memory.dmp
memory/872-149-0x0000000002DE0000-0x0000000002DE1000-memory.dmp
memory/872-139-0x0000000004540000-0x0000000004541000-memory.dmp
memory/872-151-0x0000000007A30000-0x0000000007A31000-memory.dmp
memory/872-134-0x0000000006990000-0x0000000006991000-memory.dmp
memory/872-135-0x0000000006992000-0x0000000006993000-memory.dmp
memory/872-133-0x0000000006FD0000-0x0000000006FD1000-memory.dmp
memory/872-155-0x0000000007B80000-0x0000000007B81000-memory.dmp
memory/872-132-0x00000000068C0000-0x00000000068C1000-memory.dmp
memory/872-244-0x000000007EE10000-0x000000007EE11000-memory.dmp
memory/872-129-0x00000000002C0000-0x00000000002C1000-memory.dmp
memory/872-245-0x0000000006993000-0x0000000006994000-memory.dmp
memory/872-141-0x0000000006E50000-0x0000000006E51000-memory.dmp
memory/872-189-0x0000000008E50000-0x0000000008E51000-memory.dmp
memory/872-188-0x0000000008C70000-0x0000000008C71000-memory.dmp
memory/872-183-0x0000000008910000-0x0000000008911000-memory.dmp
memory/872-176-0x0000000008B30000-0x0000000008B63000-memory.dmp
memory/872-168-0x00000000002C0000-0x00000000002C1000-memory.dmp
memory/2744-121-0x00000000051A0000-0x00000000051A1000-memory.dmp
memory/2744-120-0x00000000055A0000-0x00000000055A1000-memory.dmp
memory/2744-122-0x00000000050A0000-0x000000000559E000-memory.dmp
memory/2744-123-0x0000000005240000-0x0000000005241000-memory.dmp
memory/2744-124-0x0000000005580000-0x0000000005587000-memory.dmp
memory/2744-125-0x0000000008A80000-0x0000000008A81000-memory.dmp
memory/2744-126-0x0000000008C20000-0x0000000008C70000-memory.dmp
memory/2744-118-0x0000000000890000-0x0000000000891000-memory.dmp