Analysis
-
max time kernel
117s -
max time network
26s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
06-08-2024 19:21
Static task
static1
Behavioral task
behavioral1
Sample
dc2533b0feef85c78e45c3e1fb49d0f0N.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
dc2533b0feef85c78e45c3e1fb49d0f0N.exe
Resource
win10v2004-20240802-en
General
-
Target
dc2533b0feef85c78e45c3e1fb49d0f0N.exe
-
Size
281KB
-
MD5
dc2533b0feef85c78e45c3e1fb49d0f0
-
SHA1
fa690783d8f1f704581d7c46c01b630aca361e4a
-
SHA256
90115d512cb84ffadc9a85aaddc077fb817fa37198a863928291e9780cfa763f
-
SHA512
c8c7354680c6fd9ffc5ff8211f264c15dca8b9a5e5afa92a9262abbcfedd2afeee20c32d0e970de5ac1358694b7c55a045aacfb6a4edee2e28d91612bbcc6795
-
SSDEEP
6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkfMs:boSeGUA5YZazpXUmZhZ6SQ
Malware Config
Extracted
nanocore
1.2.2.0
sysupdate24.ddns.net:45400
ae82ab7f-db07-49ee-9d2b-76075d76f37f
-
activate_away_mode
true
- backup_connection_host
- backup_dns_server
-
buffer_size
65535
-
build_time
2020-04-24T17:41:53.492468936Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
45400
-
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
ae82ab7f-db07-49ee-9d2b-76075d76f37f
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
sysupdate24.ddns.net
- 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
-
Executes dropped EXE 2 IoCs
Processes:
a1punf5t2of.exea1punf5t2of.exepid process 2748 a1punf5t2of.exe 2880 a1punf5t2of.exe -
Loads dropped DLL 2 IoCs
Processes:
dc2533b0feef85c78e45c3e1fb49d0f0N.exea1punf5t2of.exepid process 2692 dc2533b0feef85c78e45c3e1fb49d0f0N.exe 2748 a1punf5t2of.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
dc2533b0feef85c78e45c3e1fb49d0f0N.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" dc2533b0feef85c78e45c3e1fb49d0f0N.exe -
Processes:
a1punf5t2of.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA a1punf5t2of.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
a1punf5t2of.exedescription pid process target process PID 2748 set thread context of 2880 2748 a1punf5t2of.exe a1punf5t2of.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
dc2533b0feef85c78e45c3e1fb49d0f0N.exea1punf5t2of.exea1punf5t2of.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language dc2533b0feef85c78e45c3e1fb49d0f0N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a1punf5t2of.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a1punf5t2of.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
a1punf5t2of.exepid process 2880 a1punf5t2of.exe 2880 a1punf5t2of.exe 2880 a1punf5t2of.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
a1punf5t2of.exepid process 2880 a1punf5t2of.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
a1punf5t2of.exedescription pid process Token: SeDebugPrivilege 2880 a1punf5t2of.exe -
Suspicious use of WriteProcessMemory 19 IoCs
Processes:
dc2533b0feef85c78e45c3e1fb49d0f0N.exea1punf5t2of.exedescription pid process target process PID 2692 wrote to memory of 2748 2692 dc2533b0feef85c78e45c3e1fb49d0f0N.exe a1punf5t2of.exe PID 2692 wrote to memory of 2748 2692 dc2533b0feef85c78e45c3e1fb49d0f0N.exe a1punf5t2of.exe PID 2692 wrote to memory of 2748 2692 dc2533b0feef85c78e45c3e1fb49d0f0N.exe a1punf5t2of.exe PID 2692 wrote to memory of 2748 2692 dc2533b0feef85c78e45c3e1fb49d0f0N.exe a1punf5t2of.exe PID 2692 wrote to memory of 2748 2692 dc2533b0feef85c78e45c3e1fb49d0f0N.exe a1punf5t2of.exe PID 2692 wrote to memory of 2748 2692 dc2533b0feef85c78e45c3e1fb49d0f0N.exe a1punf5t2of.exe PID 2692 wrote to memory of 2748 2692 dc2533b0feef85c78e45c3e1fb49d0f0N.exe a1punf5t2of.exe PID 2748 wrote to memory of 2880 2748 a1punf5t2of.exe a1punf5t2of.exe PID 2748 wrote to memory of 2880 2748 a1punf5t2of.exe a1punf5t2of.exe PID 2748 wrote to memory of 2880 2748 a1punf5t2of.exe a1punf5t2of.exe PID 2748 wrote to memory of 2880 2748 a1punf5t2of.exe a1punf5t2of.exe PID 2748 wrote to memory of 2880 2748 a1punf5t2of.exe a1punf5t2of.exe PID 2748 wrote to memory of 2880 2748 a1punf5t2of.exe a1punf5t2of.exe PID 2748 wrote to memory of 2880 2748 a1punf5t2of.exe a1punf5t2of.exe PID 2748 wrote to memory of 2880 2748 a1punf5t2of.exe a1punf5t2of.exe PID 2748 wrote to memory of 2880 2748 a1punf5t2of.exe a1punf5t2of.exe PID 2748 wrote to memory of 2880 2748 a1punf5t2of.exe a1punf5t2of.exe PID 2748 wrote to memory of 2880 2748 a1punf5t2of.exe a1punf5t2of.exe PID 2748 wrote to memory of 2880 2748 a1punf5t2of.exe a1punf5t2of.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\dc2533b0feef85c78e45c3e1fb49d0f0N.exe"C:\Users\Admin\AppData\Local\Temp\dc2533b0feef85c78e45c3e1fb49d0f0N.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2692 -
C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2748 -
C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"3⤵
- Executes dropped EXE
- Checks whether UAC is enabled
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:2880
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
281KB
MD5714c9adef6a78cd2162ce047938c5cd2
SHA1b53c8579eb6fe7a86234044b94e60d15aa45ada5
SHA256bb7c1c7e72feaff1559dcba017cad3381d4c2e05850a8d2e515e1f1ab2e743c6
SHA51209da84a9cf19bf5ce0911f3c61864fc24903a32255272cc79e4ecb47a7af635c1bf3e2513508b05a0b161c1e355ce33dfd26e70f7692a1c9f60dc1128722dc2d