Analysis
-
max time kernel
148s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
12-10-2024 01:50
Static task
static1
Behavioral task
behavioral1
Sample
c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe
Resource
win7-20240903-en
General
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Target
c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe
-
Size
607KB
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MD5
3f6058dbb64084df7f3da0a1cb23a872
-
SHA1
632554f2fcc9074d8a243de7c420c5663efb956c
-
SHA256
c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2
-
SHA512
a685084608abe12faef64ce719a16688d7a7ce5b81c7a2f0a698fed892b11d4a9e3686b1de64ab3a0ca10bddcfe78b9afcfd76a9fd44768864d7c4c45de7d821
-
SSDEEP
12288:ypQS6Mb6fyFHdFWdRshjwHYiYaQaupo8AZzDNFyYpWqpQQ:yfjb6+DqCjjiDuqNZzDNFyYA0QQ
Malware Config
Extracted
nanocore
1.2.2.0
blv23728.ddns.net:6110
127.0.0.1:6110
7c49fc8b-b4e3-4ea2-a895-eda0223cb79d
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activate_away_mode
true
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backup_connection_host
127.0.0.1
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
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build_time
2024-07-11T09:55:17.304143036Z
-
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
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
6110
-
default_group
M3M3
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enable_debug_mode
true
-
gc_threshold
1.048576e+07
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keep_alive_timeout
30000
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keyboard_logging
false
-
lan_timeout
2500
-
max_packet_size
1.048576e+07
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mutex
7c49fc8b-b4e3-4ea2-a895-eda0223cb79d
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
blv23728.ddns.net
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primary_dns_server
8.8.8.8
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request_elevation
true
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restart_delay
5000
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run_delay
0
-
run_on_startup
false
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set_critical_process
true
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timeout_interval
5000
-
use_custom_dns_server
false
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version
1.2.2.0
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wan_timeout
8000
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:
c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exedescription ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\SMTP Subsystem = "C:\\Program Files (x86)\\SMTP Subsystem\\smtpss.exe" c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe -
Processes:
c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exedescription ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exedescription pid Process procid_target PID 1528 set thread context of 560 1528 c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe 92 -
Drops file in Program Files directory 2 IoCs
Processes:
c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exedescription ioc Process File created C:\Program Files (x86)\SMTP Subsystem\smtpss.exe c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe File opened for modification C:\Program Files (x86)\SMTP Subsystem\smtpss.exe c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.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 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
powershell.exeschtasks.exeschtasks.exec56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exec56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exedescription ioc Process 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 schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid Process 3640 schtasks.exe 760 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
powershell.exec56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exepid Process 1000 powershell.exe 1000 powershell.exe 560 c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe 560 c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe 560 c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe 560 c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe 560 c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe 560 c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exepid Process 560 c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
powershell.exec56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exedescription pid Process Token: SeDebugPrivilege 1000 powershell.exe Token: SeDebugPrivilege 560 c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exec56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exedescription pid Process procid_target PID 1528 wrote to memory of 1000 1528 c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe 90 PID 1528 wrote to memory of 1000 1528 c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe 90 PID 1528 wrote to memory of 1000 1528 c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe 90 PID 1528 wrote to memory of 560 1528 c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe 92 PID 1528 wrote to memory of 560 1528 c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe 92 PID 1528 wrote to memory of 560 1528 c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe 92 PID 1528 wrote to memory of 560 1528 c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe 92 PID 1528 wrote to memory of 560 1528 c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe 92 PID 1528 wrote to memory of 560 1528 c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe 92 PID 1528 wrote to memory of 560 1528 c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe 92 PID 1528 wrote to memory of 560 1528 c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe 92 PID 560 wrote to memory of 3640 560 c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe 93 PID 560 wrote to memory of 3640 560 c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe 93 PID 560 wrote to memory of 3640 560 c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe 93 PID 560 wrote to memory of 760 560 c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe 95 PID 560 wrote to memory of 760 560 c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe 95 PID 560 wrote to memory of 760 560 c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe 95
Processes
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C:\Users\Admin\AppData\Local\Temp\c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe"C:\Users\Admin\AppData\Local\Temp\c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1528 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1000
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C:\Users\Admin\AppData\Local\Temp\c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe"C:\Users\Admin\AppData\Local\Temp\c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2.exe"2⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- 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:560 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "SMTP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpF57C.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:3640
-
-
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "SMTP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpF790.tmp"3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:760
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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
MD5e6e9c81c2a40ac61b3a61c15cfd9c8c1
SHA188a30ff0174585a528c47161d3ae0305aeab8f82
SHA256becfce37d6beff6175f81b13fcf40fd8db124444dc56aaa830d25978092d914c
SHA5124440c7a6dc2073e04bb08ec4a215b2aa8dd6bd5db18b28dabb2375eb31d4725b1579cf8f87f53a3757bc1d03eb543f060c776c4e652d4567c2fb6ca79ebdf28c
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Filesize
1KB
MD50339b45ef206f4becc88be0d65e24b9e
SHA16503a1851f4ccd8c80a31f96bd7ae40d962c9fad
SHA2563d568a47a8944a47f4aed6982755ac7ff7dda469cc1c81c213ecaa5d89de1f83
SHA512c98f4513db34d50510dd986e0d812545c442bd5bef26932032b165759627fab4e00c95fe907ab3416a8a1042bfa77aa516c479f1ff7d1ec2f21ae66df8f72551