Analysis
-
max time kernel
133s -
max time network
143s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
05-08-2024 06:46
Static task
static1
Behavioral task
behavioral1
Sample
7Dh9pl21mjWDN3A.exe
Resource
win7-20240704-en
General
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Target
7Dh9pl21mjWDN3A.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+
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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
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set_critical_process
true
-
timeout_interval
5000
-
use_custom_dns_server
false
-
version
1.2.2.0
-
wan_timeout
8009
Signatures
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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.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
7Dh9pl21mjWDN3A.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation 7Dh9pl21mjWDN3A.exe -
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\WAN Subsystem = "C:\\Program Files (x86)\\WAN Subsystem\\wanss.exe" RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
7Dh9pl21mjWDN3A.exedescription pid process target process PID 2000 set thread context of 3020 2000 7Dh9pl21mjWDN3A.exe RegSvcs.exe -
Drops file in Program Files directory 2 IoCs
Processes:
RegSvcs.exedescription ioc process File opened for modification C:\Program Files (x86)\WAN Subsystem\wanss.exe RegSvcs.exe File created C:\Program Files (x86)\WAN Subsystem\wanss.exe RegSvcs.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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.exeRegSvcs.exeschtasks.exeschtasks.exe7Dh9pl21mjWDN3A.exepowershell.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegSvcs.exe 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 7Dh9pl21mjWDN3A.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.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 3016 schtasks.exe 3244 schtasks.exe 1308 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
Processes:
7Dh9pl21mjWDN3A.exepowershell.exeRegSvcs.exepid process 2000 7Dh9pl21mjWDN3A.exe 2000 7Dh9pl21mjWDN3A.exe 2000 7Dh9pl21mjWDN3A.exe 2000 7Dh9pl21mjWDN3A.exe 2000 7Dh9pl21mjWDN3A.exe 2000 7Dh9pl21mjWDN3A.exe 2000 7Dh9pl21mjWDN3A.exe 2000 7Dh9pl21mjWDN3A.exe 2000 7Dh9pl21mjWDN3A.exe 2320 powershell.exe 2320 powershell.exe 3020 RegSvcs.exe 3020 RegSvcs.exe 3020 RegSvcs.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
RegSvcs.exepid process 3020 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
7Dh9pl21mjWDN3A.exepowershell.exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 2000 7Dh9pl21mjWDN3A.exe Token: SeDebugPrivilege 2320 powershell.exe Token: SeDebugPrivilege 3020 RegSvcs.exe -
Suspicious use of WriteProcessMemory 23 IoCs
Processes:
7Dh9pl21mjWDN3A.exeRegSvcs.exedescription pid process target process PID 2000 wrote to memory of 2320 2000 7Dh9pl21mjWDN3A.exe powershell.exe PID 2000 wrote to memory of 2320 2000 7Dh9pl21mjWDN3A.exe powershell.exe PID 2000 wrote to memory of 2320 2000 7Dh9pl21mjWDN3A.exe powershell.exe PID 2000 wrote to memory of 3016 2000 7Dh9pl21mjWDN3A.exe schtasks.exe PID 2000 wrote to memory of 3016 2000 7Dh9pl21mjWDN3A.exe schtasks.exe PID 2000 wrote to memory of 3016 2000 7Dh9pl21mjWDN3A.exe schtasks.exe PID 2000 wrote to memory of 2844 2000 7Dh9pl21mjWDN3A.exe RegSvcs.exe PID 2000 wrote to memory of 2844 2000 7Dh9pl21mjWDN3A.exe RegSvcs.exe PID 2000 wrote to memory of 2844 2000 7Dh9pl21mjWDN3A.exe RegSvcs.exe PID 2000 wrote to memory of 3020 2000 7Dh9pl21mjWDN3A.exe RegSvcs.exe PID 2000 wrote to memory of 3020 2000 7Dh9pl21mjWDN3A.exe RegSvcs.exe PID 2000 wrote to memory of 3020 2000 7Dh9pl21mjWDN3A.exe RegSvcs.exe PID 2000 wrote to memory of 3020 2000 7Dh9pl21mjWDN3A.exe RegSvcs.exe PID 2000 wrote to memory of 3020 2000 7Dh9pl21mjWDN3A.exe RegSvcs.exe PID 2000 wrote to memory of 3020 2000 7Dh9pl21mjWDN3A.exe RegSvcs.exe PID 2000 wrote to memory of 3020 2000 7Dh9pl21mjWDN3A.exe RegSvcs.exe PID 2000 wrote to memory of 3020 2000 7Dh9pl21mjWDN3A.exe RegSvcs.exe PID 3020 wrote to memory of 3244 3020 RegSvcs.exe schtasks.exe PID 3020 wrote to memory of 3244 3020 RegSvcs.exe schtasks.exe PID 3020 wrote to memory of 3244 3020 RegSvcs.exe schtasks.exe PID 3020 wrote to memory of 1308 3020 RegSvcs.exe schtasks.exe PID 3020 wrote to memory of 1308 3020 RegSvcs.exe schtasks.exe PID 3020 wrote to memory of 1308 3020 RegSvcs.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\7Dh9pl21mjWDN3A.exe"C:\Users\Admin\AppData\Local\Temp\7Dh9pl21mjWDN3A.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2000 -
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:2320 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mzHFviYTm" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFCBF.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:3016 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵PID:2844
-
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:3020 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "WAN Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpFFAD.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:3244 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "WAN Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpFFEC.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1308
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
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
-
Filesize
1KB
MD58060a0211a6df52ac8692b075e24baaf
SHA1e0b781ca19823e3c4fb13097c201d593a7188c88
SHA25650488055cf2debee879ec84eef3417f751844e970eb9fc87d8deba3c7197122a
SHA51251e95ba0cb8aff9828282bd5146f86ab8312861dd0f25cbba27c375f6078e46fd4af7d8303f2778804b86895f19403af863636e6b2e4c8b2bce819f6795d3b74
-
Filesize
1KB
MD58cad1b41587ced0f1e74396794f31d58
SHA111054bf74fcf5e8e412768035e4dae43aa7b710f
SHA2563086d914f6b23268f8a12cb1a05516cd5465c2577e1d1e449f1b45c8e5e8f83c
SHA51299c2ef89029de51a866df932841684b7fc912df21e10e2dd0d09e400203bbdc6cba6319a31780b7bf8b286d2cea8ea3fc7d084348bf2f002ab4f5a34218ccbef
-
Filesize
1KB
MD502783aa0d9a1a2104300bdd910c9b6dc
SHA10c8409582f9e606183eca539cc493d82983a0fb0
SHA25659a13383f0495d96e868a7f41557d17f5afe15ce5548d7cc6c7501f6095f68fb
SHA51211ef8bceddd6c0dc0ecec3e5bfbabba4595368b8b9be01a38ccbeaa509b7f99960fea6bbd83a37ea9807f79a5db08cdba1ec8ac85443ffdc3c0f204760153854