Analysis
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max time kernel
61s -
max time network
152s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
26-02-2021 08:13
Static task
static1
Behavioral task
behavioral1
Sample
f7210e3233bcb64f07f95b0573e0a07b.exe
Resource
win7v20201028
General
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Target
f7210e3233bcb64f07f95b0573e0a07b.exe
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Size
670KB
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MD5
f7210e3233bcb64f07f95b0573e0a07b
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SHA1
302884f77354287317b2492c28d385a1403489db
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SHA256
054174519f7a336d5e8e5fe6596b07cd507c9e146cc437f5d3798b6cf243504e
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SHA512
62feea6301fb8dec7a648be66827237671a1ed8b2fc78feb67c4a0e47b6c6528056b113fdbd31bb53f31a5b0a130efcb21e9703294f224c609480821f02bd252
Malware Config
Extracted
nanocore
1.2.2.0
grace7705.ddns.net:7705
4b193573-4138-4219-99c3-ee230c07783f
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activate_away_mode
true
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backup_connection_host
grace7705.ddns.net
- backup_dns_server
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buffer_size
65535
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build_time
2020-11-30T04:32:39.205275236Z
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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
true
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connect_delay
4000
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connection_port
7705
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default_group
Hour Of Grace$$
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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
4b193573-4138-4219-99c3-ee230c07783f
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
grace7705.ddns.net
- primary_dns_server
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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
true
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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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Processes:
f7210e3233bcb64f07f95b0573e0a07b.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA f7210e3233bcb64f07f95b0573e0a07b.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
f7210e3233bcb64f07f95b0573e0a07b.exedescription pid process target process PID 1032 set thread context of 3340 1032 f7210e3233bcb64f07f95b0573e0a07b.exe f7210e3233bcb64f07f95b0573e0a07b.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 7 IoCs
Processes:
f7210e3233bcb64f07f95b0573e0a07b.exef7210e3233bcb64f07f95b0573e0a07b.exepid process 1032 f7210e3233bcb64f07f95b0573e0a07b.exe 3340 f7210e3233bcb64f07f95b0573e0a07b.exe 3340 f7210e3233bcb64f07f95b0573e0a07b.exe 3340 f7210e3233bcb64f07f95b0573e0a07b.exe 3340 f7210e3233bcb64f07f95b0573e0a07b.exe 3340 f7210e3233bcb64f07f95b0573e0a07b.exe 3340 f7210e3233bcb64f07f95b0573e0a07b.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
f7210e3233bcb64f07f95b0573e0a07b.exepid process 3340 f7210e3233bcb64f07f95b0573e0a07b.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
f7210e3233bcb64f07f95b0573e0a07b.exef7210e3233bcb64f07f95b0573e0a07b.exedescription pid process Token: SeDebugPrivilege 1032 f7210e3233bcb64f07f95b0573e0a07b.exe Token: SeDebugPrivilege 3340 f7210e3233bcb64f07f95b0573e0a07b.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
f7210e3233bcb64f07f95b0573e0a07b.exedescription pid process target process PID 1032 wrote to memory of 2644 1032 f7210e3233bcb64f07f95b0573e0a07b.exe schtasks.exe PID 1032 wrote to memory of 2644 1032 f7210e3233bcb64f07f95b0573e0a07b.exe schtasks.exe PID 1032 wrote to memory of 2644 1032 f7210e3233bcb64f07f95b0573e0a07b.exe schtasks.exe PID 1032 wrote to memory of 3340 1032 f7210e3233bcb64f07f95b0573e0a07b.exe f7210e3233bcb64f07f95b0573e0a07b.exe PID 1032 wrote to memory of 3340 1032 f7210e3233bcb64f07f95b0573e0a07b.exe f7210e3233bcb64f07f95b0573e0a07b.exe PID 1032 wrote to memory of 3340 1032 f7210e3233bcb64f07f95b0573e0a07b.exe f7210e3233bcb64f07f95b0573e0a07b.exe PID 1032 wrote to memory of 3340 1032 f7210e3233bcb64f07f95b0573e0a07b.exe f7210e3233bcb64f07f95b0573e0a07b.exe PID 1032 wrote to memory of 3340 1032 f7210e3233bcb64f07f95b0573e0a07b.exe f7210e3233bcb64f07f95b0573e0a07b.exe PID 1032 wrote to memory of 3340 1032 f7210e3233bcb64f07f95b0573e0a07b.exe f7210e3233bcb64f07f95b0573e0a07b.exe PID 1032 wrote to memory of 3340 1032 f7210e3233bcb64f07f95b0573e0a07b.exe f7210e3233bcb64f07f95b0573e0a07b.exe PID 1032 wrote to memory of 3340 1032 f7210e3233bcb64f07f95b0573e0a07b.exe f7210e3233bcb64f07f95b0573e0a07b.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\f7210e3233bcb64f07f95b0573e0a07b.exe"C:\Users\Admin\AppData\Local\Temp\f7210e3233bcb64f07f95b0573e0a07b.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1032 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LLzCWOr" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF497.tmp"2⤵
- Creates scheduled task(s)
PID:2644 -
C:\Users\Admin\AppData\Local\Temp\f7210e3233bcb64f07f95b0573e0a07b.exe"{path}"2⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:3340
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\f7210e3233bcb64f07f95b0573e0a07b.exe.logMD5
ef140ef600b2463c9e7dbf064a104046
SHA1c08fd1853877be95575ea2e860dd8cafef31f54c
SHA256ad8ae97fdeb174b20f02c7ddf9466981856d77d51133599b5954f48f78a1b616
SHA512bf16df0994080bdc832cb39a312e0095de57608256fcf0d04d589e0bdf3283f918fb0d6ec86ea28a4b1af6db12813c52a724028f02330ebc3a9d32a4fcda706c
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C:\Users\Admin\AppData\Local\Temp\tmpF497.tmpMD5
c6f490dc96d972bd149bbe38fd8ab5ce
SHA18e4cbec7fdca04e62136756eb94c1d91d9807ab9
SHA256f157d18a1a8b9d6622485c49f54ec4ec6944e38fca060782239c29a090b30527
SHA5128f2711701791d7dbaf20a0a5d113249038713cdf97cd530d9bac3a14b6d4cfde89a69b7694881e82775e1550e663276cf2ffa46262acfd01eb905c401bae1e21
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memory/1032-2-0x0000000000D60000-0x0000000000D61000-memory.dmpFilesize
4KB
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memory/1032-3-0x0000000000D61000-0x0000000000D62000-memory.dmpFilesize
4KB
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memory/2644-4-0x0000000000000000-mapping.dmp
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memory/3340-6-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/3340-7-0x000000000041E792-mapping.dmp
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memory/3340-9-0x0000000002D70000-0x0000000002D71000-memory.dmpFilesize
4KB