Analysis
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max time kernel
122s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20231020-en -
resource tags
arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system -
submitted
04/12/2023, 17:08
Static task
static1
Behavioral task
behavioral1
Sample
340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe
Resource
win7-20231020-en
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\UDP Service = "C:\\Program Files (x86)\\UDP Service\\udpsvc.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 1700 set thread context of 2100 1700 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 28 -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files (x86)\UDP Service\udpsvc.exe 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe File opened for modification C:\Program Files (x86)\UDP Service\udpsvc.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 2776 schtasks.exe 2704 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2100 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 2100 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 2100 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 2100 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2100 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2100 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 1700 wrote to memory of 2100 1700 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 28 PID 1700 wrote to memory of 2100 1700 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 28 PID 1700 wrote to memory of 2100 1700 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 28 PID 1700 wrote to memory of 2100 1700 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 28 PID 1700 wrote to memory of 2100 1700 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 28 PID 1700 wrote to memory of 2100 1700 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 28 PID 1700 wrote to memory of 2100 1700 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 28 PID 1700 wrote to memory of 2100 1700 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 28 PID 1700 wrote to memory of 2100 1700 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 28 PID 2100 wrote to memory of 2776 2100 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 29 PID 2100 wrote to memory of 2776 2100 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 29 PID 2100 wrote to memory of 2776 2100 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 29 PID 2100 wrote to memory of 2776 2100 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 29 PID 2100 wrote to memory of 2704 2100 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 31 PID 2100 wrote to memory of 2704 2100 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 31 PID 2100 wrote to memory of 2704 2100 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 31 PID 2100 wrote to memory of 2704 2100 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe 31
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:1700 -
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:2100 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "UDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpAD9D.tmp"3⤵
- Creates scheduled task(s)
PID:2776
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "UDP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpAEB7.tmp"3⤵
- Creates scheduled task(s)
PID:2704
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD503f5b9ec9db6068a5562292b3012ed49
SHA1304033e8fde3f437b9a0a2c60671574f042e8799
SHA2568422cf40de0753ca59d6a62f065b5b53b48602577db47da313ae28f6c783f37d
SHA512c0fc6adfe0a354677d1e5d91b466b3a6dbd2d912deb49a0707bc9d41e3915953701877a20a8a9da3a0655eec57ee98a5430817ec51af706706232cda543b13f0
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Filesize
1KB
MD51b87aeb30b82c980d66a27dcaf6b6b3c
SHA1ca5cc8e61a39be38ebe6b295b1b39b012808222e
SHA256bd1b0eab0a2e61816941ca6060e9c63a10184038c8e7b67ef1fbb4bd533481c6
SHA5127c0f8744fe569c358d1941acca93079f3d8fb5fa60b6499642659e83da5666200e13b2db728675d5b75c6cfb63f2c88eab7792036ae6ab0dca1913d25c6cfe7f