Analysis
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max time kernel
97s -
max time network
152s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
05-07-2022 13:09
Static task
static1
Behavioral task
behavioral1
Sample
CV.exe
Resource
win7-20220414-en
General
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Target
CV.exe
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Size
644KB
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MD5
657c89503e55e88a1e0c1390fee464a3
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SHA1
5c4382f2e661b25d190c7e57ebb22759715abf85
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SHA256
0b5b77eb2568ffc85d47fa2e1f2924d3e31e981c99c3d15b5123f3f70dcf3331
-
SHA512
f508f4401f9fad820cadf438ce3d19430b440b7db423fb40d53ac5c10e434b7522b8f409568f78b63fab2275baa149e95dc7127c2e5fb1dee929914d80cded3e
Malware Config
Extracted
nanocore
1.2.2.0
brewsterchristophe.hopto.org:5899
136.144.41.240:5899
11328c70-ca51-4fd0-b253-500cee871738
-
activate_away_mode
true
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backup_connection_host
136.144.41.240
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2022-03-27T23:04:39.086047636Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
5899
-
default_group
Default
-
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
11328c70-ca51-4fd0-b253-500cee871738
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
brewsterchristophe.hopto.org
-
primary_dns_server
8.8.8.8
-
request_elevation
true
-
restart_delay
5000
-
run_delay
0
-
run_on_startup
true
-
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
-
suricata: ET MALWARE Possible NanoCore C2 60B
suricata: ET MALWARE Possible NanoCore C2 60B
-
Processes:
CV.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA CV.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
CV.exedescription pid process target process PID 1560 set thread context of 960 1560 CV.exe CV.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
CV.exepid process 960 CV.exe 960 CV.exe 960 CV.exe 960 CV.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
CV.exepid process 960 CV.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
CV.exedescription pid process Token: SeDebugPrivilege 960 CV.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
CV.exedescription pid process target process PID 1560 wrote to memory of 960 1560 CV.exe CV.exe PID 1560 wrote to memory of 960 1560 CV.exe CV.exe PID 1560 wrote to memory of 960 1560 CV.exe CV.exe PID 1560 wrote to memory of 960 1560 CV.exe CV.exe PID 1560 wrote to memory of 960 1560 CV.exe CV.exe PID 1560 wrote to memory of 960 1560 CV.exe CV.exe PID 1560 wrote to memory of 960 1560 CV.exe CV.exe PID 1560 wrote to memory of 960 1560 CV.exe CV.exe PID 1560 wrote to memory of 960 1560 CV.exe CV.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\CV.exe"C:\Users\Admin\AppData\Local\Temp\CV.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\CV.exe"C:\Users\Admin\AppData\Local\Temp\CV.exe"2⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/960-73-0x00000000004A0000-0x00000000004AA000-memory.dmpFilesize
40KB
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memory/960-81-0x0000000004760000-0x000000000476C000-memory.dmpFilesize
48KB
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memory/960-87-0x0000000004BE0000-0x0000000004BF4000-memory.dmpFilesize
80KB
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memory/960-86-0x0000000004D20000-0x0000000004D4E000-memory.dmpFilesize
184KB
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memory/960-74-0x0000000000A60000-0x0000000000A7E000-memory.dmpFilesize
120KB
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memory/960-85-0x0000000004BC0000-0x0000000004BCE000-memory.dmpFilesize
56KB
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memory/960-60-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/960-61-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/960-63-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/960-64-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/960-66-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/960-75-0x0000000000630000-0x000000000063A000-memory.dmpFilesize
40KB
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memory/960-69-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/960-71-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/960-84-0x0000000004AB0000-0x0000000004AC4000-memory.dmpFilesize
80KB
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memory/960-83-0x0000000004780000-0x0000000004790000-memory.dmpFilesize
64KB
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memory/960-67-0x000000000041E792-mapping.dmp
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memory/960-76-0x0000000000A90000-0x0000000000AA2000-memory.dmpFilesize
72KB
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memory/960-77-0x00000000045D0000-0x00000000045EA000-memory.dmpFilesize
104KB
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memory/960-78-0x0000000001110000-0x000000000111E000-memory.dmpFilesize
56KB
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memory/960-79-0x0000000004600000-0x0000000004612000-memory.dmpFilesize
72KB
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memory/960-80-0x0000000004650000-0x000000000465E000-memory.dmpFilesize
56KB
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memory/960-82-0x0000000004770000-0x0000000004784000-memory.dmpFilesize
80KB
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memory/1560-55-0x00000000752B1000-0x00000000752B3000-memory.dmpFilesize
8KB
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memory/1560-58-0x00000000050B0000-0x000000000512E000-memory.dmpFilesize
504KB
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memory/1560-56-0x0000000000560000-0x0000000000580000-memory.dmpFilesize
128KB
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memory/1560-59-0x0000000004D50000-0x0000000004D8A000-memory.dmpFilesize
232KB
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memory/1560-57-0x00000000007D0000-0x00000000007DE000-memory.dmpFilesize
56KB
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memory/1560-54-0x0000000001120000-0x00000000011C6000-memory.dmpFilesize
664KB