Analysis
-
max time kernel
149s -
max time network
107s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
28-02-2021 07:18
Static task
static1
Behavioral task
behavioral1
Sample
4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe
Resource
win7v20201028
General
-
Target
4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe
-
Size
566KB
-
MD5
f26e9eb5914b78c8f295a4713939d4a9
-
SHA1
51997a3762efd15608e50abde8a687b17b481cc3
-
SHA256
4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965
-
SHA512
e51af7865aa4827fb4d525113a8d73373f3995a13194e21c70f792a68ed23c0f61090164670b68f16649b10fef54a2e3702ebe24810c32efca26e7d40c84dea9
Malware Config
Extracted
nanocore
1.2.2.0
:54984
127.0.0.1:54984
49c25f92-88ec-46d9-9a7c-8eb39880ba42
-
activate_away_mode
false
-
backup_connection_host
127.0.0.1
-
backup_dns_server
84.200.70.40
-
buffer_size
65535
-
build_time
2020-12-07T22:10:51.801964236Z
-
bypass_user_account_control
false
-
bypass_user_account_control_data
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
-
clear_access_control
false
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
54984
-
default_group
Default
-
enable_debug_mode
false
-
gc_threshold
1.048576e+07
-
keep_alive_timeout
30000
-
keyboard_logging
false
-
lan_timeout
2500
-
max_packet_size
1.048576e+07
-
mutex
49c25f92-88ec-46d9-9a7c-8eb39880ba42
-
mutex_timeout
5000
-
prevent_system_sleep
false
- primary_connection_host
-
primary_dns_server
84.200.69.80
-
request_elevation
false
-
restart_delay
5000
-
run_delay
0
-
run_on_startup
false
-
set_critical_process
false
-
timeout_interval
5000
-
use_custom_dns_server
false
-
version
1.2.2.0
-
wan_timeout
7973
Signatures
-
Loads dropped DLL 2 IoCs
Processes:
4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exepid process 4772 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe 4772 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WAN Service = "C:\\Program Files (x86)\\WAN Service\\wansv.exe" 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe -
Processes:
4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exedescription pid process target process PID 4772 set thread context of 4300 4772 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe -
Drops file in Program Files directory 2 IoCs
Processes:
4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exedescription ioc process File opened for modification C:\Program Files (x86)\WAN Service\wansv.exe 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe File created C:\Program Files (x86)\WAN Service\wansv.exe 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
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 11 IoCs
Processes:
4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exepid process 4772 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe 4772 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe 4772 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe 4772 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe 4772 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe 4772 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe 4772 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe 4772 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe 4300 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe 4300 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe 4300 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exepid process 4300 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exepid process 4772 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exedescription pid process Token: SeDebugPrivilege 4300 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe Token: SeDebugPrivilege 4300 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exedescription pid process target process PID 4772 wrote to memory of 4300 4772 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe PID 4772 wrote to memory of 4300 4772 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe PID 4772 wrote to memory of 4300 4772 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe PID 4772 wrote to memory of 4300 4772 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe PID 4300 wrote to memory of 1932 4300 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe schtasks.exe PID 4300 wrote to memory of 1932 4300 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe schtasks.exe PID 4300 wrote to memory of 1932 4300 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe schtasks.exe PID 4300 wrote to memory of 560 4300 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe schtasks.exe PID 4300 wrote to memory of 560 4300 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe schtasks.exe PID 4300 wrote to memory of 560 4300 4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe schtasks.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe"C:\Users\Admin\AppData\Local\Temp\4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.exe"C:\Users\Admin\AppData\Local\Temp\4b13202d3051cdb4a77aea1f199b80e923c6071dc064246ae518a4ca57091965.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
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "WAN Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp764F.tmp"3⤵
- Creates scheduled task(s)
-
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "WAN Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp76DC.tmp"3⤵
- Creates scheduled task(s)
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\tmp764F.tmpMD5
42720defdd16ddaf1eefae539842d62a
SHA19ace2b55a24537fe82b17c4782ecf9a4437f2701
SHA256903da32b8b842bf5c73f34da20626040385d20b52e6c05636126906edb8362e4
SHA512b851874c9a167b6899d00bdabfc79b1b1668ec5f43922d99c775c923c2a0e983536c02b92098da6181148537f7bca4ea0f7097c28aa389f669b8802bbc3cfb3b
-
C:\Users\Admin\AppData\Local\Temp\tmp76DC.tmpMD5
eb527779d4a920bac8c3c59e8f4b4b4c
SHA14c9c48fd4ab89a983c87d810577133dc281160b4
SHA25697a200adfccc855ed435941fe1453a6add1a66b8390d033279c2f1a6a64c26a2
SHA512a48c1ca2310a4bceacca90d3b8748fdecc0169738905e0bc62a665ab048c1ae6bb801dc99f0f04d85287993c27bfd0a4e7f59d27a1c233b6662d6ba3ca586da0
-
\Users\Admin\AppData\Local\Temp\hcjp9mqi.dllMD5
c207d9eae3465543976410bb2f578c33
SHA1297ab2ee38cba9cb764cb74872155fb15d984ca2
SHA2561fc080f97140182ebaac437235b0ee53a32658bf7b6aed2680cd5c93e5c7c6e3
SHA512a563f62882f75e93d2c69bdf2880d3394686d5286469bb452b4ce54cdf5de4fc57edd9659d033def921091d918ac97c83cd6baa4d9e89e669f4d607f6b85b760
-
\Users\Admin\AppData\Local\Temp\nsp6066.tmp\System.dllMD5
fccff8cb7a1067e23fd2e2b63971a8e1
SHA130e2a9e137c1223a78a0f7b0bf96a1c361976d91
SHA2566fcea34c8666b06368379c6c402b5321202c11b00889401c743fb96c516c679e
SHA512f4335e84e6f8d70e462a22f1c93d2998673a7616c868177cac3e8784a3be1d7d0bb96f2583fa0ed82f4f2b6b8f5d9b33521c279a42e055d80a94b4f3f1791e0c
-
memory/560-19-0x0000000000000000-mapping.dmp
-
memory/1932-17-0x0000000000000000-mapping.dmp
-
memory/4300-7-0x00000000023D0000-0x0000000002403000-memory.dmpFilesize
204KB
-
memory/4300-16-0x0000000005130000-0x0000000005131000-memory.dmpFilesize
4KB
-
memory/4300-11-0x0000000004FA0000-0x0000000004FA1000-memory.dmpFilesize
4KB
-
memory/4300-14-0x00000000049B4000-0x00000000049B5000-memory.dmpFilesize
4KB
-
memory/4300-12-0x00000000049B0000-0x00000000049B1000-memory.dmpFilesize
4KB
-
memory/4300-13-0x00000000049B2000-0x00000000049B3000-memory.dmpFilesize
4KB
-
memory/4300-15-0x00000000049B3000-0x00000000049B4000-memory.dmpFilesize
4KB
-
memory/4300-10-0x0000000004EC0000-0x0000000004EC1000-memory.dmpFilesize
4KB
-
memory/4300-9-0x00000000049C0000-0x00000000049C1000-memory.dmpFilesize
4KB
-
memory/4300-6-0x0000000000400000-0x0000000000449000-memory.dmpFilesize
292KB
-
memory/4300-5-0x00000000733E0000-0x0000000073ACE000-memory.dmpFilesize
6.9MB
-
memory/4300-4-0x000000000040188B-mapping.dmp
-
memory/4300-21-0x00000000058C0000-0x00000000058C5000-memory.dmpFilesize
20KB
-
memory/4300-22-0x0000000005950000-0x0000000005969000-memory.dmpFilesize
100KB
-
memory/4300-23-0x0000000005970000-0x0000000005973000-memory.dmpFilesize
12KB