Resubmissions
10-09-2022 07:46
220910-jlylpadeak 10Analysis
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max time kernel
76s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
10-09-2022 07:46
Static task
static1
Behavioral task
behavioral1
Sample
PURCHASE ORDER #07092022.exe
Resource
win7-20220812-en
General
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Target
PURCHASE ORDER #07092022.exe
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Size
269KB
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MD5
3d7909a4c69d7965f3ce0d9c9afb47e0
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SHA1
a4ef26b0768ea38c307d334269beebe4bfcd8026
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SHA256
1feec92d18902bbc841954145ee920e2dff92ed61759b17e451d8e59b95336ef
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SHA512
103e810968679629c373983834d440d8d4b1804b65cc5ece99e1e5bf8005ea56db1d2f369ba56ef3efe675b14cb1675d85b6955bf8f27b3a5be8b5ab17572a37
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SSDEEP
6144:YZyB96qbOLUTnHfJBng++++4+++++++0++++++++YmZL+:0vUOL+nzg++++4+++++++0+++++++
Malware Config
Extracted
nanocore
1.2.2.0
79.110.62.158:4089
127.0.0.1:4089
9afffa13-03db-4357-8000-31753020feef
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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
2022-06-21T14:39:46.685878836Z
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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
false
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connect_delay
4000
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connection_port
4089
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default_group
Default
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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
9afffa13-03db-4357-8000-31753020feef
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mutex_timeout
5033
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prevent_system_sleep
false
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primary_connection_host
79.110.62.158
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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
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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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
PURCHASE ORDER #07092022.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation PURCHASE ORDER #07092022.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
PURCHASE ORDER #07092022.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Nzriqimnh = "\"C:\\Users\\Admin\\AppData\\Roaming\\Mvlmnac\\Nzriqimnh.exe\"" PURCHASE ORDER #07092022.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
PURCHASE ORDER #07092022.exedescription pid process target process PID 4848 set thread context of 4876 4848 PURCHASE ORDER #07092022.exe MSBuild.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
powershell.exeMSBuild.exepid process 4452 powershell.exe 4452 powershell.exe 4876 MSBuild.exe 4876 MSBuild.exe 4876 MSBuild.exe 4876 MSBuild.exe 4876 MSBuild.exe 4876 MSBuild.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
MSBuild.exepid process 4876 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
PURCHASE ORDER #07092022.exepowershell.exeMSBuild.exedescription pid process Token: SeDebugPrivilege 4848 PURCHASE ORDER #07092022.exe Token: SeDebugPrivilege 4452 powershell.exe Token: SeDebugPrivilege 4876 MSBuild.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
PURCHASE ORDER #07092022.exedescription pid process target process PID 4848 wrote to memory of 4452 4848 PURCHASE ORDER #07092022.exe powershell.exe PID 4848 wrote to memory of 4452 4848 PURCHASE ORDER #07092022.exe powershell.exe PID 4848 wrote to memory of 4452 4848 PURCHASE ORDER #07092022.exe powershell.exe PID 4848 wrote to memory of 4876 4848 PURCHASE ORDER #07092022.exe MSBuild.exe PID 4848 wrote to memory of 4876 4848 PURCHASE ORDER #07092022.exe MSBuild.exe PID 4848 wrote to memory of 4876 4848 PURCHASE ORDER #07092022.exe MSBuild.exe PID 4848 wrote to memory of 4876 4848 PURCHASE ORDER #07092022.exe MSBuild.exe PID 4848 wrote to memory of 4876 4848 PURCHASE ORDER #07092022.exe MSBuild.exe PID 4848 wrote to memory of 4876 4848 PURCHASE ORDER #07092022.exe MSBuild.exe PID 4848 wrote to memory of 4876 4848 PURCHASE ORDER #07092022.exe MSBuild.exe PID 4848 wrote to memory of 4876 4848 PURCHASE ORDER #07092022.exe MSBuild.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER #07092022.exe"C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER #07092022.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMwAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/4452-140-0x0000000007FB0000-0x000000000862A000-memory.dmpFilesize
6.5MB
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memory/4452-136-0x0000000005BC0000-0x00000000061E8000-memory.dmpFilesize
6.2MB
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memory/4452-134-0x0000000000000000-mapping.dmp
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memory/4452-135-0x0000000003360000-0x0000000003396000-memory.dmpFilesize
216KB
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memory/4452-139-0x0000000006940000-0x000000000695E000-memory.dmpFilesize
120KB
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memory/4452-137-0x0000000006260000-0x00000000062C6000-memory.dmpFilesize
408KB
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memory/4452-141-0x0000000006E30000-0x0000000006E4A000-memory.dmpFilesize
104KB
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memory/4452-138-0x0000000006340000-0x00000000063A6000-memory.dmpFilesize
408KB
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memory/4848-132-0x00000000008C0000-0x000000000090A000-memory.dmpFilesize
296KB
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memory/4848-133-0x0000000005E40000-0x0000000005E62000-memory.dmpFilesize
136KB
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memory/4876-142-0x0000000000000000-mapping.dmp
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memory/4876-143-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/4876-144-0x00000000057A0000-0x0000000005D44000-memory.dmpFilesize
5.6MB
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memory/4876-145-0x0000000005140000-0x00000000051D2000-memory.dmpFilesize
584KB
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memory/4876-146-0x00000000051F0000-0x000000000528C000-memory.dmpFilesize
624KB
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memory/4876-147-0x0000000002C40000-0x0000000002C4A000-memory.dmpFilesize
40KB