Analysis
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max time kernel
146s -
max time network
148s -
platform
windows11-21h2_x64 -
resource
win11-20240709-en -
resource tags
arch:x64arch:x86image:win11-20240709-enlocale:en-usos:windows11-21h2-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
-
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
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
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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
-
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
-
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
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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\DHCP Subsystem = "C:\\Program Files (x86)\\DHCP Subsystem\\dhcpss.exe" MSBuild.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exedescription pid process target process PID 644 set thread context of 2004 644 c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe MSBuild.exe -
Drops file in Program Files directory 2 IoCs
Processes:
MSBuild.exedescription ioc process File created C:\Program Files (x86)\DHCP Subsystem\dhcpss.exe MSBuild.exe File opened for modification C:\Program Files (x86)\DHCP Subsystem\dhcpss.exe MSBuild.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exeMSBuild.exepid process 644 c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe 644 c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe 2004 MSBuild.exe 2004 MSBuild.exe 2004 MSBuild.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
MSBuild.exepid process 2004 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exeMSBuild.exedescription pid process Token: SeDebugPrivilege 644 c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe Token: SeDebugPrivilege 2004 MSBuild.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exedescription pid process target process PID 644 wrote to memory of 4912 644 c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe MSBuild.exe PID 644 wrote to memory of 4912 644 c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe MSBuild.exe PID 644 wrote to memory of 4912 644 c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe MSBuild.exe PID 644 wrote to memory of 2004 644 c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe MSBuild.exe PID 644 wrote to memory of 2004 644 c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe MSBuild.exe PID 644 wrote to memory of 2004 644 c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe MSBuild.exe PID 644 wrote to memory of 2004 644 c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe MSBuild.exe PID 644 wrote to memory of 2004 644 c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe MSBuild.exe PID 644 wrote to memory of 2004 644 c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe MSBuild.exe PID 644 wrote to memory of 2004 644 c556eda3dbf9f7739263f46057b3073ba7c76f3028dacef54fb5a8715950551e.exe MSBuild.exe PID 644 wrote to memory of 2004 644 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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- 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⤵
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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/644-10-0x0000000006D20000-0x0000000006D2E000-memory.dmpFilesize
56KB
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memory/644-2-0x0000000005420000-0x00000000059C6000-memory.dmpFilesize
5.6MB
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memory/644-11-0x0000000006D40000-0x0000000006DBA000-memory.dmpFilesize
488KB
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memory/644-3-0x0000000004F20000-0x0000000004FB2000-memory.dmpFilesize
584KB
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memory/644-4-0x0000000004FD0000-0x0000000004FDA000-memory.dmpFilesize
40KB
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memory/644-5-0x0000000074B70000-0x0000000075321000-memory.dmpFilesize
7.7MB
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memory/644-6-0x00000000059D0000-0x0000000005D27000-memory.dmpFilesize
3.3MB
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memory/644-7-0x00000000053F0000-0x0000000005402000-memory.dmpFilesize
72KB
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memory/644-12-0x00000000094A0000-0x000000000953C000-memory.dmpFilesize
624KB
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memory/644-9-0x0000000006CE0000-0x0000000006CFA000-memory.dmpFilesize
104KB
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memory/644-0-0x0000000074B7E000-0x0000000074B7F000-memory.dmpFilesize
4KB
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memory/644-1-0x00000000003C0000-0x0000000000474000-memory.dmpFilesize
720KB
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memory/644-8-0x0000000006B60000-0x0000000006B82000-memory.dmpFilesize
136KB
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memory/644-16-0x0000000074B70000-0x0000000075321000-memory.dmpFilesize
7.7MB
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memory/2004-15-0x0000000074B70000-0x0000000075321000-memory.dmpFilesize
7.7MB
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memory/2004-13-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/2004-17-0x0000000074B70000-0x0000000075321000-memory.dmpFilesize
7.7MB
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memory/2004-20-0x0000000005920000-0x000000000592A000-memory.dmpFilesize
40KB
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memory/2004-21-0x0000000005AF0000-0x0000000005B0E000-memory.dmpFilesize
120KB
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memory/2004-22-0x0000000006600000-0x000000000660A000-memory.dmpFilesize
40KB
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memory/2004-23-0x0000000074B70000-0x0000000075321000-memory.dmpFilesize
7.7MB
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memory/2004-24-0x0000000074B70000-0x0000000075321000-memory.dmpFilesize
7.7MB