Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
12-09-2022 08:03
Static task
static1
Behavioral task
behavioral1
Sample
8576609ec13f27b0481917747aaefbf3.exe
Resource
win7-20220901-en
General
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Target
8576609ec13f27b0481917747aaefbf3.exe
-
Size
317KB
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MD5
8576609ec13f27b0481917747aaefbf3
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SHA1
d3c229e3f3c330d8f43c267852b6157cf0871cc3
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SHA256
da08e1b296f69bb0b0a8c04c134fe850783c092342da54a3fb28f2d55c6efcce
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SHA512
5df58994094fc0d5601bd87eadaa99010fb33e96ccc7ad7b4e01732a6565fe3f87c96bd658e3a40093e35b1b45ec3ef64c53a82c6a7ff744268d58da68abcabb
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SSDEEP
6144:DJ1Rp3Y2NFlrTUNJPfORc6P30tHOemJshORvOvkM0DwrTcs0iCQQmqECSS+:Nyy2PKHPeOemJpRM0DwrTcsm/3SS+
Malware Config
Extracted
nanocore
1.2.2.0
systen32.ddns.net:54980
office365update.duckdns.org:54980
41b88ccb-be7c-4bd4-ae12-8d3a967819f0
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activate_away_mode
true
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backup_connection_host
office365update.duckdns.org
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2018-09-17T20:29:45.244980036Z
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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
54980
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default_group
****|*****
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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
41b88ccb-be7c-4bd4-ae12-8d3a967819f0
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mutex_timeout
5000
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prevent_system_sleep
true
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primary_connection_host
systen32.ddns.net
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primary_dns_server
8.8.8.8
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request_elevation
true
-
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
-
timeout_interval
5000
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use_custom_dns_server
false
-
version
1.2.2.0
-
wan_timeout
8000
Signatures
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Suspicious use of SetThreadContext 1 IoCs
Processes:
8576609ec13f27b0481917747aaefbf3.exedescription pid process target process PID 4584 set thread context of 4576 4584 8576609ec13f27b0481917747aaefbf3.exe MSBuild.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
8576609ec13f27b0481917747aaefbf3.exeMSBuild.exepid process 4584 8576609ec13f27b0481917747aaefbf3.exe 4584 8576609ec13f27b0481917747aaefbf3.exe 4576 MSBuild.exe 4576 MSBuild.exe 4576 MSBuild.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
MSBuild.exepid process 4576 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
8576609ec13f27b0481917747aaefbf3.exeMSBuild.exedescription pid process Token: SeDebugPrivilege 4584 8576609ec13f27b0481917747aaefbf3.exe Token: SeDebugPrivilege 4576 MSBuild.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
8576609ec13f27b0481917747aaefbf3.exedescription pid process target process PID 4584 wrote to memory of 4512 4584 8576609ec13f27b0481917747aaefbf3.exe MSBuild.exe PID 4584 wrote to memory of 4512 4584 8576609ec13f27b0481917747aaefbf3.exe MSBuild.exe PID 4584 wrote to memory of 4512 4584 8576609ec13f27b0481917747aaefbf3.exe MSBuild.exe PID 4584 wrote to memory of 4576 4584 8576609ec13f27b0481917747aaefbf3.exe MSBuild.exe PID 4584 wrote to memory of 4576 4584 8576609ec13f27b0481917747aaefbf3.exe MSBuild.exe PID 4584 wrote to memory of 4576 4584 8576609ec13f27b0481917747aaefbf3.exe MSBuild.exe PID 4584 wrote to memory of 4576 4584 8576609ec13f27b0481917747aaefbf3.exe MSBuild.exe PID 4584 wrote to memory of 4576 4584 8576609ec13f27b0481917747aaefbf3.exe MSBuild.exe PID 4584 wrote to memory of 4576 4584 8576609ec13f27b0481917747aaefbf3.exe MSBuild.exe PID 4584 wrote to memory of 4576 4584 8576609ec13f27b0481917747aaefbf3.exe MSBuild.exe PID 4584 wrote to memory of 4576 4584 8576609ec13f27b0481917747aaefbf3.exe MSBuild.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\8576609ec13f27b0481917747aaefbf3.exe"C:\Users\Admin\AppData\Local\Temp\8576609ec13f27b0481917747aaefbf3.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"2⤵
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/4512-134-0x0000000000000000-mapping.dmp
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memory/4576-135-0x0000000000000000-mapping.dmp
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memory/4576-136-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/4576-138-0x0000000074850000-0x0000000074E01000-memory.dmpFilesize
5.7MB
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memory/4576-139-0x0000000074850000-0x0000000074E01000-memory.dmpFilesize
5.7MB
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memory/4584-132-0x0000000074850000-0x0000000074E01000-memory.dmpFilesize
5.7MB
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memory/4584-133-0x0000000074850000-0x0000000074E01000-memory.dmpFilesize
5.7MB
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memory/4584-137-0x0000000074850000-0x0000000074E01000-memory.dmpFilesize
5.7MB