Analysis
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max time kernel
150s -
max time network
143s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
21-05-2022 01:32
Static task
static1
Behavioral task
behavioral1
Sample
PO 2763534615.exe
Resource
win7-20220414-en
General
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Target
PO 2763534615.exe
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Size
409KB
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MD5
a14645df9ec875f21afb08fea742a1df
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SHA1
6b70ceb58a91033948913a6d77154a9a842cc883
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SHA256
93bf34f3e42fb55786de7c65c2aa7f8340194e12708170e7f9a0bf0c42c2a72f
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SHA512
b673bb587c80422584ec03288fbc957204eb238749931a03d374e050f2bfde381a709b74232da4ee5943bb415505606775a1f798267cabf65d5867aea27c8ae8
Malware Config
Extracted
nanocore
1.2.2.0
flysky1400.ddns.net:3180
127.0.0.1:3180
f4f156f1-80ab-4a61-8d4a-cf70dde6562c
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activate_away_mode
true
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backup_connection_host
127.0.0.1
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2020-04-24T03:30:53.823630436Z
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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
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connect_delay
4000
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connection_port
3180
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default_group
hector
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enable_debug_mode
true
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gc_threshold
1.048576e+07
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keep_alive_timeout
30000
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keyboard_logging
false
-
lan_timeout
2500
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max_packet_size
1.048576e+07
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mutex
f4f156f1-80ab-4a61-8d4a-cf70dde6562c
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mutex_timeout
5000
-
prevent_system_sleep
false
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primary_connection_host
flysky1400.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
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run_on_startup
false
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set_critical_process
true
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timeout_interval
5000
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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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Executes dropped EXE 1 IoCs
Processes:
PO 2763534615.exepid process 5096 PO 2763534615.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
PO 2763534615.exePO 2763534615.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\TCP Service = "C:\\Program Files (x86)\\TCP Service\\tcpsvc.exe" PO 2763534615.exe Set value (str) \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\msword = "\"C:\\Users\\Admin\\AppData\\Roaming\\msword.exe\"" PO 2763534615.exe -
Processes:
PO 2763534615.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA PO 2763534615.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
PO 2763534615.exedescription pid process target process PID 2600 set thread context of 5096 2600 PO 2763534615.exe PO 2763534615.exe -
Drops file in Program Files directory 2 IoCs
Processes:
PO 2763534615.exedescription ioc process File created C:\Program Files (x86)\TCP Service\tcpsvc.exe PO 2763534615.exe File opened for modification C:\Program Files (x86)\TCP Service\tcpsvc.exe PO 2763534615.exe -
Suspicious behavior: EnumeratesProcesses 30 IoCs
Processes:
PO 2763534615.exePO 2763534615.exepid process 2600 PO 2763534615.exe 2600 PO 2763534615.exe 2600 PO 2763534615.exe 2600 PO 2763534615.exe 2600 PO 2763534615.exe 2600 PO 2763534615.exe 2600 PO 2763534615.exe 2600 PO 2763534615.exe 2600 PO 2763534615.exe 2600 PO 2763534615.exe 2600 PO 2763534615.exe 2600 PO 2763534615.exe 2600 PO 2763534615.exe 2600 PO 2763534615.exe 2600 PO 2763534615.exe 2600 PO 2763534615.exe 2600 PO 2763534615.exe 2600 PO 2763534615.exe 2600 PO 2763534615.exe 2600 PO 2763534615.exe 2600 PO 2763534615.exe 2600 PO 2763534615.exe 2600 PO 2763534615.exe 2600 PO 2763534615.exe 2600 PO 2763534615.exe 2600 PO 2763534615.exe 2600 PO 2763534615.exe 5096 PO 2763534615.exe 5096 PO 2763534615.exe 5096 PO 2763534615.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
PO 2763534615.exepid process 5096 PO 2763534615.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
PO 2763534615.exePO 2763534615.exedescription pid process Token: SeDebugPrivilege 2600 PO 2763534615.exe Token: SeDebugPrivilege 5096 PO 2763534615.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
PO 2763534615.exedescription pid process target process PID 2600 wrote to memory of 5096 2600 PO 2763534615.exe PO 2763534615.exe PID 2600 wrote to memory of 5096 2600 PO 2763534615.exe PO 2763534615.exe PID 2600 wrote to memory of 5096 2600 PO 2763534615.exe PO 2763534615.exe PID 2600 wrote to memory of 5096 2600 PO 2763534615.exe PO 2763534615.exe PID 2600 wrote to memory of 5096 2600 PO 2763534615.exe PO 2763534615.exe PID 2600 wrote to memory of 5096 2600 PO 2763534615.exe PO 2763534615.exe PID 2600 wrote to memory of 5096 2600 PO 2763534615.exe PO 2763534615.exe PID 2600 wrote to memory of 5096 2600 PO 2763534615.exe PO 2763534615.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\PO 2763534615.exe"C:\Users\Admin\AppData\Local\Temp\PO 2763534615.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2600 -
C:\Users\Admin\AppData\Local\Temp\PO 2763534615.exe"C:\Users\Admin\AppData\Local\Temp\PO 2763534615.exe"2⤵
- Executes dropped EXE
- 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
PID:5096
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\PO 2763534615.exeFilesize
409KB
MD5a14645df9ec875f21afb08fea742a1df
SHA16b70ceb58a91033948913a6d77154a9a842cc883
SHA25693bf34f3e42fb55786de7c65c2aa7f8340194e12708170e7f9a0bf0c42c2a72f
SHA512b673bb587c80422584ec03288fbc957204eb238749931a03d374e050f2bfde381a709b74232da4ee5943bb415505606775a1f798267cabf65d5867aea27c8ae8
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memory/2600-130-0x0000000000BF0000-0x0000000000C5C000-memory.dmpFilesize
432KB
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memory/2600-131-0x0000000005AB0000-0x0000000006054000-memory.dmpFilesize
5.6MB
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memory/2600-132-0x00000000055F0000-0x0000000005682000-memory.dmpFilesize
584KB
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memory/2600-133-0x00000000057A0000-0x00000000057AA000-memory.dmpFilesize
40KB
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memory/2600-134-0x0000000005920000-0x00000000059BC000-memory.dmpFilesize
624KB
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memory/5096-135-0x0000000000000000-mapping.dmp
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memory/5096-136-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB