Analysis
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max time kernel
147s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
15-07-2024 03:30
Static task
static1
Behavioral task
behavioral1
Sample
c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe
Resource
win10v2004-20240709-en
General
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Target
c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe
-
Size
695KB
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MD5
997fc0896e6e5c9fa7d33320359c9ac6
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SHA1
1f4a824be81df514942f7251fc649e14e694e16e
-
SHA256
c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e
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SHA512
e77677e3b8e24c253655e1b08cec5c611afada7c78d2937923ae3ac66ffd274fa1fa929bc4a597021d4f932a125bad30cab737082c915628fd61731279f888ba
-
SSDEEP
12288:hhoDWx2PQfZSnDx17GvT63GjmBiruwuWNP5qBmNsgLkjV1:heawM491Kv2GiHnuVkjD
Malware Config
Extracted
nanocore
1.2.2.0
newsddawork.3utilities.com:1620
maxlogs.webhop.me:1620
1fa46b72-10f9-4da3-bc15-84dde165706d
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activate_away_mode
true
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backup_connection_host
maxlogs.webhop.me
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2024-02-17T03:41:10.727034736Z
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bypass_user_account_control
true
- bypass_user_account_control_data
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clear_access_control
true
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clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
1620
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default_group
NewBin
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enable_debug_mode
true
-
gc_threshold
1.048576e+07
-
keep_alive_timeout
30000
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keyboard_logging
false
-
lan_timeout
2500
-
max_packet_size
1.048576e+07
-
mutex
1fa46b72-10f9-4da3-bc15-84dde165706d
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
newsddawork.3utilities.com
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primary_dns_server
8.8.8.8
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request_elevation
true
-
restart_delay
5000
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run_delay
0
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run_on_startup
false
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set_critical_process
true
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timeout_interval
5000
-
use_custom_dns_server
false
-
version
1.2.2.0
-
wan_timeout
8000
Signatures
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
MSBuild.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\NAT Subsystem = "C:\\Program Files (x86)\\NAT Subsystem\\natss.exe" MSBuild.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exedescription pid process target process PID 960 set thread context of 2152 960 c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe MSBuild.exe -
Drops file in Program Files directory 2 IoCs
Processes:
MSBuild.exedescription ioc process File created C:\Program Files (x86)\NAT Subsystem\natss.exe MSBuild.exe File opened for modification C:\Program Files (x86)\NAT Subsystem\natss.exe MSBuild.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
MSBuild.exepid process 2152 MSBuild.exe 2152 MSBuild.exe 2152 MSBuild.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
MSBuild.exepid process 2152 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
MSBuild.exedescription pid process Token: SeDebugPrivilege 2152 MSBuild.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exedescription pid process target process PID 960 wrote to memory of 2152 960 c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe MSBuild.exe PID 960 wrote to memory of 2152 960 c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe MSBuild.exe PID 960 wrote to memory of 2152 960 c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe MSBuild.exe PID 960 wrote to memory of 2152 960 c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe MSBuild.exe PID 960 wrote to memory of 2152 960 c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe MSBuild.exe PID 960 wrote to memory of 2152 960 c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe MSBuild.exe PID 960 wrote to memory of 2152 960 c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe MSBuild.exe PID 960 wrote to memory of 2152 960 c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe MSBuild.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe"C:\Users\Admin\AppData\Local\Temp\c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"2⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/960-10-0x0000000006490000-0x000000000649E000-memory.dmpFilesize
56KB
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memory/960-2-0x0000000005380000-0x0000000005924000-memory.dmpFilesize
5.6MB
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memory/960-11-0x00000000064B0000-0x000000000652A000-memory.dmpFilesize
488KB
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memory/960-3-0x0000000004E80000-0x0000000004F12000-memory.dmpFilesize
584KB
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memory/960-4-0x0000000004F50000-0x0000000004F5A000-memory.dmpFilesize
40KB
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memory/960-5-0x00000000743E0000-0x0000000074B90000-memory.dmpFilesize
7.7MB
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memory/960-6-0x0000000005930000-0x0000000005C84000-memory.dmpFilesize
3.3MB
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memory/960-7-0x00000000052A0000-0x00000000052B2000-memory.dmpFilesize
72KB
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memory/960-12-0x0000000009100000-0x000000000919C000-memory.dmpFilesize
624KB
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memory/960-9-0x0000000006C40000-0x0000000006C5A000-memory.dmpFilesize
104KB
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memory/960-0-0x00000000743EE000-0x00000000743EF000-memory.dmpFilesize
4KB
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memory/960-1-0x00000000003E0000-0x0000000000494000-memory.dmpFilesize
720KB
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memory/960-8-0x0000000006AC0000-0x0000000006AE2000-memory.dmpFilesize
136KB
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memory/960-15-0x00000000743E0000-0x0000000074B90000-memory.dmpFilesize
7.7MB
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memory/2152-13-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/2152-16-0x00000000743E0000-0x0000000074B90000-memory.dmpFilesize
7.7MB
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memory/2152-17-0x00000000743E0000-0x0000000074B90000-memory.dmpFilesize
7.7MB
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memory/2152-20-0x0000000005B60000-0x0000000005B6A000-memory.dmpFilesize
40KB
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memory/2152-21-0x0000000005B70000-0x0000000005B8E000-memory.dmpFilesize
120KB
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memory/2152-22-0x0000000006550000-0x000000000655A000-memory.dmpFilesize
40KB
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memory/2152-23-0x00000000743E0000-0x0000000074B90000-memory.dmpFilesize
7.7MB
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memory/2152-24-0x00000000743E0000-0x0000000074B90000-memory.dmpFilesize
7.7MB