Analysis
- max time kernel
73s - max time network
151s - platform
windows10_x64 - resource
win10v20210408 - submitted
07/07/2021, 10:34
General
- Target payment slip.exe
- Size 1.2MB
- Sample210707-4fc9s95b76
- SHA256 f1e9fd8dc15cf4c038828e3e9e39c7b70c79c676ca8ca025fc93fca7da1602a2
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
erunski.duckdns.org:1515
-
eleks.ddns.net:1515
-
653f4857-4eb9-49d8-a84b-e61ab4af9c17
-
activate_away_mode
true
-
backup_connection_host
eleks.ddns.net
-
backup_dns_server
eleks.ddns.net
-
buffer_size
65535
-
build_time
2021-02-09T13:03:24.957608836Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
1515
-
default_group
GOLD
-
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
653f4857-4eb9-49d8-a84b-e61ab4af9c17
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
erunski.duckdns.org
-
primary_dns_server
erunski.duckdns.org
-
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 5 IoCs
- Suspicious use of WriteProcessMemory 20 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\payment slip.exe"C:\Users\Admin\AppData\Local\Temp\payment slip.exe"1⤵
- Suspicious use of SetThreadContext
- 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\Local\Temp\payment slip.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\UbBSjyGybpB.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UbBSjyGybpB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp56CB.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\UbBSjyGybpB.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\payment slip.exe"C:\Users\Admin\AppData\Local\Temp\payment slip.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/816-196-0x0000000007243000-0x0000000007244000-memory.dmp
memory/816-153-0x0000000007242000-0x0000000007243000-memory.dmp
memory/816-152-0x0000000007240000-0x0000000007241000-memory.dmp
memory/816-194-0x000000007F6A0000-0x000000007F6A1000-memory.dmp
memory/816-159-0x0000000008050000-0x0000000008051000-memory.dmp
memory/816-157-0x0000000007FB0000-0x0000000007FB1000-memory.dmp
memory/1440-155-0x0000000006C12000-0x0000000006C13000-memory.dmp
memory/1440-192-0x000000007EB90000-0x000000007EB91000-memory.dmp
memory/1440-154-0x0000000006C10000-0x0000000006C11000-memory.dmp
memory/1440-197-0x0000000006C13000-0x0000000006C14000-memory.dmp
memory/1620-166-0x0000000006240000-0x0000000006245000-memory.dmp
memory/1620-156-0x0000000005700000-0x000000000579C000-memory.dmp
memory/1620-138-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1620-170-0x0000000006410000-0x0000000006429000-memory.dmp
memory/1620-171-0x0000000006550000-0x0000000006553000-memory.dmp
memory/4296-128-0x0000000000CE0000-0x0000000000CE1000-memory.dmp
memory/4296-175-0x0000000007E00000-0x0000000007E01000-memory.dmp
memory/4296-149-0x0000000000EF0000-0x0000000000EF1000-memory.dmp
memory/4296-131-0x0000000006E10000-0x0000000006E11000-memory.dmp
memory/4296-195-0x0000000000EF3000-0x0000000000EF4000-memory.dmp
memory/4296-162-0x0000000006D70000-0x0000000006D71000-memory.dmp
memory/4296-168-0x0000000007580000-0x0000000007581000-memory.dmp
memory/4296-193-0x000000007E150000-0x000000007E151000-memory.dmp
memory/4296-178-0x0000000007CA0000-0x0000000007CA1000-memory.dmp
memory/4296-172-0x0000000006DE0000-0x0000000006DE1000-memory.dmp
memory/4296-150-0x0000000000EF2000-0x0000000000EF3000-memory.dmp
memory/4648-123-0x00000000096C0000-0x000000000976F000-memory.dmp
memory/4648-122-0x0000000004D40000-0x0000000004D4F000-memory.dmp
memory/4648-124-0x000000000BFA0000-0x000000000C01C000-memory.dmp
memory/4648-121-0x0000000004E60000-0x0000000004E61000-memory.dmp
memory/4648-114-0x00000000001C0000-0x00000000001C1000-memory.dmp
memory/4648-120-0x0000000004B10000-0x0000000004B11000-memory.dmp
memory/4648-119-0x0000000004CB0000-0x00000000051AE000-memory.dmp
memory/4648-118-0x0000000004C00000-0x0000000004C01000-memory.dmp
memory/4648-117-0x00000000051B0000-0x00000000051B1000-memory.dmp
memory/4648-116-0x0000000004B60000-0x0000000004B61000-memory.dmp