Analysis
-
max time kernel
46s -
max time network
151s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
06-08-2024 01:02
Static task
static1
Behavioral task
behavioral1
Sample
0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe
Resource
win7-20240704-en
General
-
Target
0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe
-
Size
670KB
-
MD5
b40a08e60b9b7a3504d142c07ba18f2f
-
SHA1
786e1981e4109f32da5b5c93221a3b9e8669046a
-
SHA256
0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3
-
SHA512
7beea84ee5405da69039fd36819f73e8165d1eebdaa8df97552495556969d9a1b7c57cc81c566c91c006ab1a288e828dde1dd7c0dca819c9e05f47bbe19a1876
-
SSDEEP
12288:/nxa/zmcDXmuUMtKeYSsz0NEFx8HnzNN6YZ/g5DO0lD9GIbzH:/nxaakuMsetszEELwnzTFG5flD9rL
Malware Config
Extracted
nanocore
1.2.2.0
december2n.duckdns.org:65140
december2nd.ddns.net:65140
5e26ab75-1b3f-4c8b-a159-3a61aeef3310
-
activate_away_mode
false
-
backup_connection_host
december2nd.ddns.net
- backup_dns_server
-
buffer_size
65538
-
build_time
2024-05-07T02:47:09.586481736Z
-
bypass_user_account_control
false
-
bypass_user_account_control_data
PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTE2Ij8+DQo8VGFzayB2ZXJzaW9uPSIxLjIiIHhtbG5zPSJodHRwOi8vc2NoZW1hcy5taWNyb3NvZnQuY29tL3dpbmRvd3MvMjAwNC8wMi9taXQvdGFzayI+DQogIDxSZWdpc3RyYXRpb25JbmZvIC8+DQogIDxUcmlnZ2VycyAvPg0KICA8UHJpbmNpcGFscz4NCiAgICA8UHJpbmNpcGFsIGlkPSJBdXRob3IiPg0KICAgICAgPExvZ29uVHlwZT5JbnRlcmFjdGl2ZVRva2VuPC9Mb2dvblR5cGU+DQogICAgICA8UnVuTGV2ZWw+SGlnaGVzdEF2YWlsYWJsZTwvUnVuTGV2ZWw+DQogICAgPC9QcmluY2lwYWw+DQogIDwvUHJpbmNpcGFscz4NCiAgPFNldHRpbmdzPg0KICAgIDxNdWx0aXBsZUluc3RhbmNlc1BvbGljeT5QYXJhbGxlbDwvTXVsdGlwbGVJbnN0YW5jZXNQb2xpY3k+DQogICAgPERpc2FsbG93U3RhcnRJZk9uQmF0dGVyaWVzPmZhbHNlPC9EaXNhbGxvd1N0YXJ0SWZPbkJhdHRlcmllcz4NCiAgICA8U3RvcElmR29pbmdPbkJhdHRlcmllcz5mYWxzZTwvU3RvcElmR29pbmdPbkJhdHRlcmllcz4NCiAgICA8QWxsb3dIYXJkVGVybWluYXRlPnRydWU8L0FsbG93SGFyZFRlcm1pbmF0ZT4NCiAgICA8U3RhcnRXaGVuQXZhaWxhYmxlPmZhbHNlPC9TdGFydFdoZW5BdmFpbGFibGU+DQogICAgPFJ1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+ZmFsc2U8L1J1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+DQogICAgPElkbGVTZXR0aW5ncz4NCiAgICAgIDxTdG9wT25JZGxlRW5kPmZhbHNlPC9TdG9wT25JZGxlRW5kPg0KICAgICAgPFJlc3RhcnRPbklkbGU+ZmFsc2U8L1Jlc3RhcnRPbklkbGU+DQogICAgPC9JZGxlU2V0dGluZ3M+DQogICAgPEFsbG93U3RhcnRPbkRlbWFuZD50cnVlPC9BbGxvd1N0YXJ0T25EZW1hbmQ+DQogICAgPEVuYWJsZWQ+dHJ1ZTwvRW5hYmxlZD4NCiAgICA8SGlkZGVuPmZhbHNlPC9IaWRkZW4+DQogICAgPFJ1bk9ubHlJZklkbGU+ZmFsc2U8L1J1bk9ubHlJZklkbGU+DQogICAgPFdha2VUb1J1bj5mYWxzZTwvV2FrZVRvUnVuPg0KICAgIDxFeGVjdXRpb25UaW1lTGltaXQ+UFQwUzwvRXhlY3V0aW9uVGltZUxpbWl0Pg0KICAgIDxQcmlvcml0eT40PC9Qcmlvcml0eT4NCiAgPC9TZXR0aW5ncz4NCiAgPEFjdGlvbnMgQ29udGV4dD0iQXV0aG9yIj4NCiAgICA8RXhlYz4NCiAgICAgIDxDb21tYW5kPiIjRVhFQ1VUQUJMRVBBVEgiPC9Db21tYW5kPg0KICAgICAgPEFyZ3VtZW50cz4kKEFyZzApPC9Bcmd1bWVudHM+DQogICAgPC9FeGVjPg0KICA8L0FjdGlvbnM+DQo8L1Rhc2s+
-
clear_access_control
false
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
65140
-
default_group
NO GREE
-
enable_debug_mode
true
-
gc_threshold
1.0485772e+07
-
keep_alive_timeout
30000
-
keyboard_logging
false
-
lan_timeout
2500
-
max_packet_size
1.0485772e+07
-
mutex
5e26ab75-1b3f-4c8b-a159-3a61aeef3310
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
december2n.duckdns.org
- primary_dns_server
-
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
8009
Signatures
-
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
-
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
RegSvcs.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\SMTP Monitor = "C:\\Program Files (x86)\\SMTP Monitor\\smtpmon.exe" RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exedescription pid process target process PID 2172 set thread context of 2784 2172 0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe RegSvcs.exe -
Drops file in Program Files directory 2 IoCs
Processes:
RegSvcs.exedescription ioc process File created C:\Program Files (x86)\SMTP Monitor\smtpmon.exe RegSvcs.exe File opened for modification C:\Program Files (x86)\SMTP Monitor\smtpmon.exe RegSvcs.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
System Location Discovery: System Language Discovery 1 TTPs 6 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
schtasks.exeschtasks.exe0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exepowershell.exeschtasks.exeRegSvcs.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegSvcs.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exeschtasks.exepid process 2736 schtasks.exe 2648 schtasks.exe 1716 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
Processes:
0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exepowershell.exeRegSvcs.exepid process 2172 0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe 2172 0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe 2172 0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe 2172 0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe 2172 0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe 2172 0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe 2172 0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe 2428 powershell.exe 2784 RegSvcs.exe 2784 RegSvcs.exe 2784 RegSvcs.exe 2784 RegSvcs.exe 2784 RegSvcs.exe 2784 RegSvcs.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
RegSvcs.exepid process 2784 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exepowershell.exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 2172 0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe Token: SeDebugPrivilege 2428 powershell.exe Token: SeDebugPrivilege 2784 RegSvcs.exe -
Suspicious use of WriteProcessMemory 28 IoCs
Processes:
0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exeRegSvcs.exedescription pid process target process PID 2172 wrote to memory of 2428 2172 0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe powershell.exe PID 2172 wrote to memory of 2428 2172 0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe powershell.exe PID 2172 wrote to memory of 2428 2172 0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe powershell.exe PID 2172 wrote to memory of 2428 2172 0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe powershell.exe PID 2172 wrote to memory of 2736 2172 0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe schtasks.exe PID 2172 wrote to memory of 2736 2172 0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe schtasks.exe PID 2172 wrote to memory of 2736 2172 0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe schtasks.exe PID 2172 wrote to memory of 2736 2172 0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe schtasks.exe PID 2172 wrote to memory of 2784 2172 0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe RegSvcs.exe PID 2172 wrote to memory of 2784 2172 0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe RegSvcs.exe PID 2172 wrote to memory of 2784 2172 0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe RegSvcs.exe PID 2172 wrote to memory of 2784 2172 0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe RegSvcs.exe PID 2172 wrote to memory of 2784 2172 0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe RegSvcs.exe PID 2172 wrote to memory of 2784 2172 0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe RegSvcs.exe PID 2172 wrote to memory of 2784 2172 0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe RegSvcs.exe PID 2172 wrote to memory of 2784 2172 0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe RegSvcs.exe PID 2172 wrote to memory of 2784 2172 0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe RegSvcs.exe PID 2172 wrote to memory of 2784 2172 0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe RegSvcs.exe PID 2172 wrote to memory of 2784 2172 0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe RegSvcs.exe PID 2172 wrote to memory of 2784 2172 0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe RegSvcs.exe PID 2784 wrote to memory of 2648 2784 RegSvcs.exe schtasks.exe PID 2784 wrote to memory of 2648 2784 RegSvcs.exe schtasks.exe PID 2784 wrote to memory of 2648 2784 RegSvcs.exe schtasks.exe PID 2784 wrote to memory of 2648 2784 RegSvcs.exe schtasks.exe PID 2784 wrote to memory of 1716 2784 RegSvcs.exe schtasks.exe PID 2784 wrote to memory of 1716 2784 RegSvcs.exe schtasks.exe PID 2784 wrote to memory of 1716 2784 RegSvcs.exe schtasks.exe PID 2784 wrote to memory of 1716 2784 RegSvcs.exe schtasks.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe"C:\Users\Admin\AppData\Local\Temp\0211ec291040f1e5ada7c762b20df963381cae88923e3f103d588a382d3a19f3.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2172 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\mzHFviYTm.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2428 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mzHFviYTm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9702.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2736 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Adds Run key to start application
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2784 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "SMTP Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9CCC.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2648 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "SMTP Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9DE6.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1716
Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
1KB
MD5ba5781b53705240622b3f15a67c15263
SHA14606475b77bdb44c43c8d4411162ce8e97421ed0
SHA25603e9cc181ac116f97a9efc35c2b8d841add66edaf5c51e2e3998e7c6abe33c55
SHA512bb57e8ddc24a43e92d176c8bcd822297c1e3bd6ce15a0a88e2f06d990ac15e7ea145377bdf265a90474a98ef23e529cd34c2eca47e99cb323db1d16371988522
-
Filesize
1KB
MD58cad1b41587ced0f1e74396794f31d58
SHA111054bf74fcf5e8e412768035e4dae43aa7b710f
SHA2563086d914f6b23268f8a12cb1a05516cd5465c2577e1d1e449f1b45c8e5e8f83c
SHA51299c2ef89029de51a866df932841684b7fc912df21e10e2dd0d09e400203bbdc6cba6319a31780b7bf8b286d2cea8ea3fc7d084348bf2f002ab4f5a34218ccbef
-
Filesize
1KB
MD5ffa9e95100598072ca693c672478895f
SHA1518514c3112c51b2b21d36d3262bec72e83d025d
SHA2561e45d509d390405f93e9f3b64ff497e61cf9bf791c015dde4499184b7a681eb3
SHA512010d14ae46a23cef14cf1de9a06c8e6ff26ca86c10ebdd3d5f16f4ffbeacc3df7ca18fafda097e00bf747fb997c5c4f9d62646e47a3b501da7c630689c28d6df