Analysis
- max time kernel
123s - max time network
152s - platform
windows10_x64 - resource
win10v20210408 - submitted
05/05/2021, 14:32
Static task
static1
Behavioral task
behavioral1
Sample
11fb001011bf92a4b8e0c6453e224718.exe
Resource
win7v20210410
0 signatures
0 seconds
General
- Target 11fb001011bf92a4b8e0c6453e224718.exe
- Size 1.1MB
- Sample210505-n8ze91axtj
- SHA256 f49ae8e59f9a7a9b39534eb42a7b5e5ded93ad8e59d5c9ae88fe2c69c2149ba2
- MD5 11fb001011bf92a4b8e0c6453e224718
- SHA1 d039c3bdd666a64a60007f0b357ce45a647d242b
- SHA512 dcf7ec87e8b4dad727dbbc089e7472bfd4606439cff2fa04ebc522a42ab3a56ff173cf0a295de8916f5efe0bb6681192936de4ac75cab47a74c021ebda5f21b2
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
-
nanocore
Version
-
1.2.2.0
C2
-
79.134.225.101:1012
-
nassiru1166sub.ddns.net:1012
Mutex
-
68bddc87-6a06-4cc3-b942-56e70898a810
Attributes
-
activate_away_mode
true
-
backup_connection_host
nassiru1166sub.ddns.net
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2021-02-14T09:00:39.079319436Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
1012
-
default_group
AaA
-
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
68bddc87-6a06-4cc3-b942-56e70898a810
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
79.134.225.101
-
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
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4024 set thread context of 1772 4024 11fb001011bf92a4b8e0c6453e224718.exe 81 - 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.
pid Process 3020 schtasks.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1772 RegSvcs.exe 1772 RegSvcs.exe 1772 RegSvcs.exe 1772 RegSvcs.exe 1772 RegSvcs.exe 1772 RegSvcs.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1772 RegSvcs.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1772 RegSvcs.exe - Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 4024 wrote to memory of 3020 4024 11fb001011bf92a4b8e0c6453e224718.exe 79 PID 4024 wrote to memory of 3020 4024 11fb001011bf92a4b8e0c6453e224718.exe 79 PID 4024 wrote to memory of 3020 4024 11fb001011bf92a4b8e0c6453e224718.exe 79 PID 4024 wrote to memory of 1772 4024 11fb001011bf92a4b8e0c6453e224718.exe 81 PID 4024 wrote to memory of 1772 4024 11fb001011bf92a4b8e0c6453e224718.exe 81 PID 4024 wrote to memory of 1772 4024 11fb001011bf92a4b8e0c6453e224718.exe 81 PID 4024 wrote to memory of 1772 4024 11fb001011bf92a4b8e0c6453e224718.exe 81 PID 4024 wrote to memory of 1772 4024 11fb001011bf92a4b8e0c6453e224718.exe 81 PID 4024 wrote to memory of 1772 4024 11fb001011bf92a4b8e0c6453e224718.exe 81 PID 4024 wrote to memory of 1772 4024 11fb001011bf92a4b8e0c6453e224718.exe 81 PID 4024 wrote to memory of 1772 4024 11fb001011bf92a4b8e0c6453e224718.exe 81
Processes
-
C:\Users\Admin\AppData\Local\Temp\11fb001011bf92a4b8e0c6453e224718.exe"C:\Users\Admin\AppData\Local\Temp\11fb001011bf92a4b8e0c6453e224718.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4024 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gPXZgesrUxOLvC" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDF83.tmp"2⤵
- Creates scheduled task(s)
PID:3020
-
-
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:1772
-
-
C:\Windows\Microsoft.Net\Framework64\v3.0\WPF\PresentationFontCache.exeC:\Windows\Microsoft.Net\Framework64\v3.0\WPF\PresentationFontCache.exe1⤵PID:2664