Analysis
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max time kernel
152s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
21-05-2022 01:41
Static task
static1
Behavioral task
behavioral1
Sample
Doc_1131_06082020.exe
Resource
win7-20220414-en
General
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Target
Doc_1131_06082020.exe
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Size
829KB
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MD5
d98b1bdbaed4370fbd8149ed8ed6ff0d
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SHA1
569c3f8953a41b67899da75fa08904f27570eaaf
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SHA256
035b8ce67efb5d796a066f6b2ae1448abdf6637810bc0a1cf6293680aa219dd3
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SHA512
197c18f694cba1f13798596c8048ce077c13fa26d46ba82673d30629f4d0166687308847a4a9c59198d586a37397168a3892bf8c703fe2fee64eef643a31903d
Malware Config
Extracted
nanocore
1.2.2.0
wazzy.ddns.net:1617
194.5.98.16:1617
b39853d2-3362-44ed-b077-ce4405004573
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activate_away_mode
true
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backup_connection_host
194.5.98.16
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2020-05-15T21:12:30.224380736Z
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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
1617
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default_group
ch
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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
b39853d2-3362-44ed-b077-ce4405004573
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
wazzy.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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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
Doc_1131_06082020.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\SCSI Subsystem = "C:\\Program Files (x86)\\SCSI Subsystem\\scsiss.exe" Doc_1131_06082020.exe -
Processes:
Doc_1131_06082020.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Doc_1131_06082020.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Doc_1131_06082020.exedescription pid process target process PID 3388 set thread context of 2472 3388 Doc_1131_06082020.exe Doc_1131_06082020.exe -
Drops file in Program Files directory 2 IoCs
Processes:
Doc_1131_06082020.exedescription ioc process File created C:\Program Files (x86)\SCSI Subsystem\scsiss.exe Doc_1131_06082020.exe File opened for modification C:\Program Files (x86)\SCSI Subsystem\scsiss.exe Doc_1131_06082020.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
Doc_1131_06082020.exeDoc_1131_06082020.exepid process 3388 Doc_1131_06082020.exe 3388 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe 4784 Doc_1131_06082020.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
Doc_1131_06082020.exepid process 2472 Doc_1131_06082020.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
Doc_1131_06082020.exepid process 3388 Doc_1131_06082020.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Doc_1131_06082020.exedescription pid process Token: SeDebugPrivilege 2472 Doc_1131_06082020.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
Doc_1131_06082020.exeDoc_1131_06082020.exedescription pid process target process PID 3388 wrote to memory of 2472 3388 Doc_1131_06082020.exe Doc_1131_06082020.exe PID 3388 wrote to memory of 2472 3388 Doc_1131_06082020.exe Doc_1131_06082020.exe PID 3388 wrote to memory of 2472 3388 Doc_1131_06082020.exe Doc_1131_06082020.exe PID 3388 wrote to memory of 4784 3388 Doc_1131_06082020.exe Doc_1131_06082020.exe PID 3388 wrote to memory of 4784 3388 Doc_1131_06082020.exe Doc_1131_06082020.exe PID 3388 wrote to memory of 4784 3388 Doc_1131_06082020.exe Doc_1131_06082020.exe PID 2472 wrote to memory of 2564 2472 Doc_1131_06082020.exe schtasks.exe PID 2472 wrote to memory of 2564 2472 Doc_1131_06082020.exe schtasks.exe PID 2472 wrote to memory of 2564 2472 Doc_1131_06082020.exe schtasks.exe PID 2472 wrote to memory of 680 2472 Doc_1131_06082020.exe schtasks.exe PID 2472 wrote to memory of 680 2472 Doc_1131_06082020.exe schtasks.exe PID 2472 wrote to memory of 680 2472 Doc_1131_06082020.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Doc_1131_06082020.exe"C:\Users\Admin\AppData\Local\Temp\Doc_1131_06082020.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Doc_1131_06082020.exe"C:\Users\Admin\AppData\Local\Temp\Doc_1131_06082020.exe"2⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "SCSI Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp77C5.tmp"3⤵
- Creates scheduled task(s)
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "SCSI Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp79F8.tmp"3⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Doc_1131_06082020.exe"C:\Users\Admin\AppData\Local\Temp\Doc_1131_06082020.exe" 2 2472 2405441872⤵
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp77C5.tmpFilesize
1KB
MD5b168eafe543b4da37d91a89f96d4add2
SHA14bae7b043fc7b1122c1c2c2a846a78853d72a26d
SHA256dbdc78996c2732dde1ee4d300d61cdec602e16b88a55834e75143ee4e6c9e6e4
SHA51293afdf23a3e12de2e1a704438245273422482c26d53cc2a6d46aa99475b60461c0f56f0e3ba95bf45c59db1267b73170ba7a5e50aef75080a51490ce19d6a0ec
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C:\Users\Admin\AppData\Local\Temp\tmp79F8.tmpFilesize
1KB
MD5bd110f9fc6c1a842f1d9b269010b0611
SHA1ef71c062902602faef9b66dcd1cfc9fe5baaf389
SHA2568135c4e4eeaa741f752c0ab8f4ee33e3bb8a0cac5923812234f2e5177d50eb5b
SHA512b8a7943a3126880b26407800bbdad5402c5b0e2aa106e7dbbb35d0cb145ca9de114401573a6aa66042a2e13674cfbcc2981d66b813f9b923fff5302210afba1f
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memory/680-139-0x0000000000000000-mapping.dmp
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memory/2472-130-0x0000000000000000-mapping.dmp
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memory/2472-132-0x0000000000970000-0x00000000009A8000-memory.dmpFilesize
224KB
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memory/2472-133-0x0000000000970000-0x00000000009A8000-memory.dmpFilesize
224KB
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memory/2472-136-0x0000000074940000-0x0000000074EF1000-memory.dmpFilesize
5.7MB
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memory/2564-137-0x0000000000000000-mapping.dmp
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memory/3388-134-0x0000000000400000-0x00000000004D5000-memory.dmpFilesize
852KB
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memory/4784-131-0x0000000000000000-mapping.dmp
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memory/4784-135-0x0000000000400000-0x00000000004D5000-memory.dmpFilesize
852KB