Analysis
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max time kernel
122s -
max time network
143s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
17-06-2024 09:31
Static task
static1
Behavioral task
behavioral1
Sample
41d27d71597c9d1163fb58a816223962.exe
Resource
win7-20231129-en
General
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Target
41d27d71597c9d1163fb58a816223962.exe
-
Size
585KB
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MD5
41d27d71597c9d1163fb58a816223962
-
SHA1
2ae197a2724967fb0ae77ee0c20d95d354b9e5cb
-
SHA256
b4a76ec2287a65963ea978ae7911b8c42c3411a21c995463985599d975e9960c
-
SHA512
555aa48eaa46f83933e34c6e8ecaf79c8f1756fb9de79181e4132bc2d02c5789abba90458ad347a374f34fc829f83b36d6666f64a657bf7e99ca5cb9aac2e1a0
-
SSDEEP
12288:2aYEnxStMSe+LQMNQ7ZQhIyOQSNSY2CNZ+TB29JvNgRh:J/nxSiSCMNQFwt3Jx8gB29Jv2
Malware Config
Extracted
nanocore
1.2.2.0
2023endofyear.duckdns.org:15170
127.0.0.1:15170
68e7ea47-3f3c-4af7-9707-6d09d0468009
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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
2023-12-29T09:19:37.611227236Z
-
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
15170
-
default_group
GLOBAL
-
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
68e7ea47-3f3c-4af7-9707-6d09d0468009
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
2023endofyear.duckdns.org
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primary_dns_server
8.8.8.8
-
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
8000
Signatures
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Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
Processes:
powershell.exepowershell.exepid process 2708 powershell.exe 2524 powershell.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
41d27d71597c9d1163fb58a816223962.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\TCP Service = "C:\\Program Files (x86)\\TCP Service\\tcpsv.exe" 41d27d71597c9d1163fb58a816223962.exe -
Processes:
41d27d71597c9d1163fb58a816223962.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 41d27d71597c9d1163fb58a816223962.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
41d27d71597c9d1163fb58a816223962.exedescription pid process target process PID 3040 set thread context of 2592 3040 41d27d71597c9d1163fb58a816223962.exe 41d27d71597c9d1163fb58a816223962.exe -
Drops file in Program Files directory 2 IoCs
Processes:
41d27d71597c9d1163fb58a816223962.exedescription ioc process File created C:\Program Files (x86)\TCP Service\tcpsv.exe 41d27d71597c9d1163fb58a816223962.exe File opened for modification C:\Program Files (x86)\TCP Service\tcpsv.exe 41d27d71597c9d1163fb58a816223962.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exeschtasks.exepid process 2752 schtasks.exe 2320 schtasks.exe 3068 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
powershell.exepowershell.exe41d27d71597c9d1163fb58a816223962.exepid process 2708 powershell.exe 2524 powershell.exe 2592 41d27d71597c9d1163fb58a816223962.exe 2592 41d27d71597c9d1163fb58a816223962.exe 2592 41d27d71597c9d1163fb58a816223962.exe 2592 41d27d71597c9d1163fb58a816223962.exe 2592 41d27d71597c9d1163fb58a816223962.exe 2592 41d27d71597c9d1163fb58a816223962.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
41d27d71597c9d1163fb58a816223962.exepid process 2592 41d27d71597c9d1163fb58a816223962.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
powershell.exepowershell.exe41d27d71597c9d1163fb58a816223962.exedescription pid process Token: SeDebugPrivilege 2708 powershell.exe Token: SeDebugPrivilege 2524 powershell.exe Token: SeDebugPrivilege 2592 41d27d71597c9d1163fb58a816223962.exe -
Suspicious use of WriteProcessMemory 29 IoCs
Processes:
41d27d71597c9d1163fb58a816223962.exe41d27d71597c9d1163fb58a816223962.exedescription pid process target process PID 3040 wrote to memory of 2708 3040 41d27d71597c9d1163fb58a816223962.exe powershell.exe PID 3040 wrote to memory of 2708 3040 41d27d71597c9d1163fb58a816223962.exe powershell.exe PID 3040 wrote to memory of 2708 3040 41d27d71597c9d1163fb58a816223962.exe powershell.exe PID 3040 wrote to memory of 2708 3040 41d27d71597c9d1163fb58a816223962.exe powershell.exe PID 3040 wrote to memory of 2524 3040 41d27d71597c9d1163fb58a816223962.exe powershell.exe PID 3040 wrote to memory of 2524 3040 41d27d71597c9d1163fb58a816223962.exe powershell.exe PID 3040 wrote to memory of 2524 3040 41d27d71597c9d1163fb58a816223962.exe powershell.exe PID 3040 wrote to memory of 2524 3040 41d27d71597c9d1163fb58a816223962.exe powershell.exe PID 3040 wrote to memory of 3068 3040 41d27d71597c9d1163fb58a816223962.exe schtasks.exe PID 3040 wrote to memory of 3068 3040 41d27d71597c9d1163fb58a816223962.exe schtasks.exe PID 3040 wrote to memory of 3068 3040 41d27d71597c9d1163fb58a816223962.exe schtasks.exe PID 3040 wrote to memory of 3068 3040 41d27d71597c9d1163fb58a816223962.exe schtasks.exe PID 3040 wrote to memory of 2592 3040 41d27d71597c9d1163fb58a816223962.exe 41d27d71597c9d1163fb58a816223962.exe PID 3040 wrote to memory of 2592 3040 41d27d71597c9d1163fb58a816223962.exe 41d27d71597c9d1163fb58a816223962.exe PID 3040 wrote to memory of 2592 3040 41d27d71597c9d1163fb58a816223962.exe 41d27d71597c9d1163fb58a816223962.exe PID 3040 wrote to memory of 2592 3040 41d27d71597c9d1163fb58a816223962.exe 41d27d71597c9d1163fb58a816223962.exe PID 3040 wrote to memory of 2592 3040 41d27d71597c9d1163fb58a816223962.exe 41d27d71597c9d1163fb58a816223962.exe PID 3040 wrote to memory of 2592 3040 41d27d71597c9d1163fb58a816223962.exe 41d27d71597c9d1163fb58a816223962.exe PID 3040 wrote to memory of 2592 3040 41d27d71597c9d1163fb58a816223962.exe 41d27d71597c9d1163fb58a816223962.exe PID 3040 wrote to memory of 2592 3040 41d27d71597c9d1163fb58a816223962.exe 41d27d71597c9d1163fb58a816223962.exe PID 3040 wrote to memory of 2592 3040 41d27d71597c9d1163fb58a816223962.exe 41d27d71597c9d1163fb58a816223962.exe PID 2592 wrote to memory of 2752 2592 41d27d71597c9d1163fb58a816223962.exe schtasks.exe PID 2592 wrote to memory of 2752 2592 41d27d71597c9d1163fb58a816223962.exe schtasks.exe PID 2592 wrote to memory of 2752 2592 41d27d71597c9d1163fb58a816223962.exe schtasks.exe PID 2592 wrote to memory of 2752 2592 41d27d71597c9d1163fb58a816223962.exe schtasks.exe PID 2592 wrote to memory of 2320 2592 41d27d71597c9d1163fb58a816223962.exe schtasks.exe PID 2592 wrote to memory of 2320 2592 41d27d71597c9d1163fb58a816223962.exe schtasks.exe PID 2592 wrote to memory of 2320 2592 41d27d71597c9d1163fb58a816223962.exe schtasks.exe PID 2592 wrote to memory of 2320 2592 41d27d71597c9d1163fb58a816223962.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\41d27d71597c9d1163fb58a816223962.exe"C:\Users\Admin\AppData\Local\Temp\41d27d71597c9d1163fb58a816223962.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3040 -
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\41d27d71597c9d1163fb58a816223962.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2708 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\dsiayzgxX.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2524 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dsiayzgxX" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4366.tmp"2⤵
- Creates scheduled task(s)
PID:3068 -
C:\Users\Admin\AppData\Local\Temp\41d27d71597c9d1163fb58a816223962.exe"C:\Users\Admin\AppData\Local\Temp\41d27d71597c9d1163fb58a816223962.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
PID:2592 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "TCP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4588.tmp"3⤵
- Creates scheduled task(s)
PID:2752 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "TCP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp45F7.tmp"3⤵
- Creates scheduled task(s)
PID:2320
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp4366.tmpFilesize
1KB
MD5dd41a55e91d30abaebed8fb7813de17f
SHA180e80df50fde261dcad2ad1c538c40a3356b6839
SHA2567b7e970d4e04fa4812cf034406b8510e63296758f82bc24ec5c0a0c60bfd3376
SHA512b2ffb984220e4b6c93a714c9c1fb7d9ed6e707f7b4485d8042666edcec8a0f6310e1008155220781426fb9f03ad71a35921fa3f36583e01ec4d3a62a310f1afb
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C:\Users\Admin\AppData\Local\Temp\tmp4588.tmpFilesize
1KB
MD505589205dc8e59621292cc8574379849
SHA1560d6d90ca08f886d81f591e737aa7e8e8dd0b78
SHA256183ea387a9a8ff41d986ee844f36508ff674eaf86e287ea81ee4725454dde0fd
SHA5120ec8548b36e548c395797d96777a935c2ab1824dd0327a5eec04c0c118e444aff735b76579940685b09bbf69469bea9fc08c07aef3b6b63f1b72da446ca3d394
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C:\Users\Admin\AppData\Local\Temp\tmp45F7.tmpFilesize
1KB
MD593fc3117767507c9889abd12dc667d22
SHA11096e4cfa0c35756e3c3fb866c1e4c1e59115df9
SHA256684997dd4ce15031cec8f2f93933b1d41d7bf5cbbff655dd64377b07055c449a
SHA512e403348ee77bd3e7c45245dd5dae81c3ea130d5cf342f630982772ce5f75548b292013480e2831d68cf51349b64afde4589d4eec94b567d20f0a01e3b9549bdc
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-msFilesize
7KB
MD5e4e55e4e894caaaed4bd81b513b97086
SHA1709af8c3741ea24328bdc0fbd982d073f80f96d3
SHA256c953aa3ae83c48bd5f0752020f9100bc95d28f7d44d9bf0c0a09355e0f4c8eb2
SHA51245e46a5249699fbbbd1773da34933386ced437ef39da6e5c19771ee2c097a513add674405cb473421b5244ead920ed9dafff168bd997bb9bcfe6b6f0c229b5ab
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memory/2592-19-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
-
memory/2592-47-0x0000000002210000-0x000000000221E000-memory.dmpFilesize
56KB
-
memory/2592-56-0x00000000043C0000-0x00000000043D4000-memory.dmpFilesize
80KB
-
memory/2592-55-0x0000000004ED0000-0x0000000004EFE000-memory.dmpFilesize
184KB
-
memory/2592-54-0x00000000043A0000-0x00000000043AE000-memory.dmpFilesize
56KB
-
memory/2592-53-0x0000000004380000-0x0000000004394000-memory.dmpFilesize
80KB
-
memory/2592-25-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
-
memory/2592-28-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
-
memory/2592-30-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
-
memory/2592-29-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
-
memory/2592-52-0x0000000004370000-0x0000000004380000-memory.dmpFilesize
64KB
-
memory/2592-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmpFilesize
4KB
-
memory/2592-21-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
-
memory/2592-23-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
-
memory/2592-51-0x0000000002260000-0x0000000002274000-memory.dmpFilesize
80KB
-
memory/2592-50-0x0000000002250000-0x000000000225C000-memory.dmpFilesize
48KB
-
memory/2592-39-0x0000000000490000-0x000000000049A000-memory.dmpFilesize
40KB
-
memory/2592-40-0x00000000004A0000-0x00000000004AC000-memory.dmpFilesize
48KB
-
memory/2592-41-0x0000000000710000-0x000000000072E000-memory.dmpFilesize
120KB
-
memory/2592-42-0x0000000000B30000-0x0000000000B3A000-memory.dmpFilesize
40KB
-
memory/2592-45-0x0000000000B90000-0x0000000000BA2000-memory.dmpFilesize
72KB
-
memory/2592-46-0x0000000002160000-0x000000000217A000-memory.dmpFilesize
104KB
-
memory/2592-49-0x0000000002240000-0x000000000224E000-memory.dmpFilesize
56KB
-
memory/2592-48-0x0000000002230000-0x0000000002242000-memory.dmpFilesize
72KB
-
memory/3040-5-0x0000000000580000-0x000000000058C000-memory.dmpFilesize
48KB
-
memory/3040-1-0x0000000000BA0000-0x0000000000C38000-memory.dmpFilesize
608KB
-
memory/3040-2-0x0000000074BF0000-0x00000000752DE000-memory.dmpFilesize
6.9MB
-
memory/3040-31-0x0000000074BF0000-0x00000000752DE000-memory.dmpFilesize
6.9MB
-
memory/3040-0-0x0000000074BFE000-0x0000000074BFF000-memory.dmpFilesize
4KB
-
memory/3040-3-0x0000000000430000-0x0000000000444000-memory.dmpFilesize
80KB
-
memory/3040-4-0x0000000000530000-0x0000000000538000-memory.dmpFilesize
32KB
-
memory/3040-6-0x0000000004650000-0x00000000046CC000-memory.dmpFilesize
496KB