Analysis
- max time kernel
125s - max time network
149s - platform
windows10_x64 - resource
win10v20210410 - submitted
12/05/2021, 10:01
General
- Target INVOIC #CTR 110510H001347.exe
- Size 913KB
- Sample210512-e9pg2esp96
- SHA256 47fcfe4b9687b8ddc8ce16c961d78a9941fa483400898e43cb4b2b8f3863f6d5
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
79.134.225.17:2050
-
127.0.0.1:2050
-
faa60493-d519-4c8d-8ff8-8e7cd20e9967
-
activate_away_mode
true
-
backup_connection_host
127.0.0.1
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2021-02-19T18:34:39.325937936Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
2050
-
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
faa60493-d519-4c8d-8ff8-8e7cd20e9967
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
79.134.225.17
-
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
- 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 10 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\INVOIC #CTR 110510H001347.exe"C:\Users\Admin\AppData\Local\Temp\INVOIC #CTR 110510H001347.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\VwvbEzxTQmiw" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB94E.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\INVOIC #CTR 110510H001347.exe"C:\Users\Admin\AppData\Local\Temp\INVOIC #CTR 110510H001347.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
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Downloads
memory/1684-145-0x0000000006250000-0x0000000006257000-memory.dmp
memory/1684-140-0x0000000005BC0000-0x0000000005BC3000-memory.dmp
memory/1684-153-0x00000000064E0000-0x00000000064E1000-memory.dmp
memory/1684-152-0x0000000006300000-0x000000000630F000-memory.dmp
memory/1684-151-0x00000000062C0000-0x00000000062E9000-memory.dmp
memory/1684-150-0x00000000062B0000-0x00000000062BA000-memory.dmp
memory/1684-149-0x0000000006290000-0x000000000629F000-memory.dmp
memory/1684-148-0x0000000006280000-0x0000000006289000-memory.dmp
memory/1684-147-0x0000000006270000-0x000000000627D000-memory.dmp
memory/1684-138-0x0000000005140000-0x0000000005145000-memory.dmp
memory/1684-128-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1684-139-0x0000000005150000-0x0000000005169000-memory.dmp
memory/1684-136-0x0000000004D30000-0x000000000522E000-memory.dmp
memory/1684-143-0x0000000006220000-0x0000000006226000-memory.dmp
memory/1684-144-0x0000000006240000-0x000000000624C000-memory.dmp
memory/1684-146-0x0000000006260000-0x0000000006266000-memory.dmp
memory/1684-141-0x0000000005BD0000-0x0000000005BDD000-memory.dmp
memory/1684-142-0x00000000061F0000-0x0000000006205000-memory.dmp
memory/1808-119-0x000000000ADB0000-0x000000000ADB1000-memory.dmp
memory/1808-116-0x0000000007820000-0x000000000790C000-memory.dmp
memory/1808-114-0x0000000000920000-0x0000000000921000-memory.dmp
memory/1808-117-0x000000000AD10000-0x000000000AD11000-memory.dmp
memory/1808-118-0x000000000B2B0000-0x000000000B2B1000-memory.dmp
memory/1808-125-0x00000000011A0000-0x00000000011E5000-memory.dmp
memory/1808-124-0x0000000001310000-0x000000000139B000-memory.dmp
memory/1808-123-0x000000000AFD0000-0x000000000AFD4000-memory.dmp
memory/1808-122-0x000000000AEE0000-0x000000000AEE1000-memory.dmp
memory/1808-121-0x000000000AE70000-0x000000000AE71000-memory.dmp
memory/1808-120-0x0000000005390000-0x0000000005391000-memory.dmp