Analysis
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max time kernel
144s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20231130-en -
resource tags
arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system -
submitted
04/12/2023, 01:31
Static task
static1
General
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Target
340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe
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Size
595KB
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MD5
0c9f292df5bb12a2384a0fd2d62a363c
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SHA1
ccc4c864a64a4a1945eef4d36a1b3ce208173880
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SHA256
340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df
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SHA512
9cde74dc3cf0ffd48639f977cbde0caf9b7917431409a181567842760db425b515819961f3912ea9495f8f7c45d999026da50017333e1db9f70f8b6ee2b7a873
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SSDEEP
12288:I45+po2sccCAQVStw6wYyBeMSIUJwS+RTbfl+RRiXp2kxtK9Wd:L+pJsbCmyp0JwSjRxkxtK9u
Malware Config
Extracted
nanocore
1.2.2.0
btldinc7.sytes.net:4510
127.0.0.1:4510
8dca47d1-e2ac-4cf4-9dae-489155036caa
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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
2023-09-14T23:25:11.588272936Z
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bypass_user_account_control
false
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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
4510
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default_group
btld
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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
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lan_timeout
2500
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max_packet_size
1.048576e+07
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mutex
8dca47d1-e2ac-4cf4-9dae-489155036caa
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
btldinc7.sytes.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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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\NAT Service = "C:\\Program Files (x86)\\NAT Service\\natsv.exe" 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4432 set thread context of 1200 4432 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 91 -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files (x86)\NAT Service\natsv.exe 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe File opened for modification C:\Program Files (x86)\NAT Service\natsv.exe 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 692 schtasks.exe 5016 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1200 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 1200 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 1200 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1200 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1200 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 4432 wrote to memory of 1200 4432 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 91 PID 4432 wrote to memory of 1200 4432 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 91 PID 4432 wrote to memory of 1200 4432 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 91 PID 4432 wrote to memory of 1200 4432 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 91 PID 4432 wrote to memory of 1200 4432 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 91 PID 4432 wrote to memory of 1200 4432 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 91 PID 4432 wrote to memory of 1200 4432 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 91 PID 4432 wrote to memory of 1200 4432 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 91 PID 1200 wrote to memory of 692 1200 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 92 PID 1200 wrote to memory of 692 1200 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 92 PID 1200 wrote to memory of 692 1200 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 92 PID 1200 wrote to memory of 5016 1200 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 94 PID 1200 wrote to memory of 5016 1200 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 94 PID 1200 wrote to memory of 5016 1200 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 94
Processes
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C:\Users\Admin\AppData\Local\Temp\340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe"C:\Users\Admin\AppData\Local\Temp\340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4432 -
C:\Users\Admin\AppData\Local\Temp\340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe"C:\Users\Admin\AppData\Local\Temp\340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.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:1200 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "NAT Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp85AB.tmp"3⤵
- Creates scheduled task(s)
PID:692
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "NAT Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8609.tmp"3⤵
- Creates scheduled task(s)
PID:5016
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe.log
Filesize2KB
MD593d52c1bc7c38d958583ebbd3dc09cd4
SHA14c5ee6f9c9ae190c9a0cccb91fa2257ddcb8b0d5
SHA2562905f3a06dd8907ddbcbe64389cffcc8a5273d1822e25f8bea385bdd01653c76
SHA512dfc55c3247d7734c5a531fb5a3de689e8bb823e82c14ad6cab16923d50d51e03e5e86165a7d65b3059a66b67968b611368b010a6d9f755916b01ef7b67c5228e
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Filesize
1KB
MD503f5b9ec9db6068a5562292b3012ed49
SHA1304033e8fde3f437b9a0a2c60671574f042e8799
SHA2568422cf40de0753ca59d6a62f065b5b53b48602577db47da313ae28f6c783f37d
SHA512c0fc6adfe0a354677d1e5d91b466b3a6dbd2d912deb49a0707bc9d41e3915953701877a20a8a9da3a0655eec57ee98a5430817ec51af706706232cda543b13f0
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Filesize
1KB
MD5cd8e69b89899eb65a199cc8019e502ad
SHA119ae04c02d02e2828e4513de66734c383660d1a5
SHA256cf1a9b78745b0f788fea2f579f1e3a82efc7425edb1f35abb8dd8e1cbaaf03ef
SHA5129a2bf35fc687ec6ac81ad3fe16f82f104ad880be6b36afc7297264de09d50e85d9d3376ed9378d56b08ef94ca700b886cc40768587fc623c7fb6117265bd7033