Analysis
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max time kernel
151s -
max time network
156s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 11:50
Static task
static1
Behavioral task
behavioral1
Sample
Doc_0143_07242020.exe
Resource
win7-20220414-en
General
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Target
Doc_0143_07242020.exe
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Size
748KB
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MD5
0c83a25f8931ce8ad0123bfee73d27c7
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SHA1
5b472e5343abf36a9699f5e126329b9c43ca717a
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SHA256
6fa0d2b187fff4aa38d7fe7690608068aa1469b0f2de4391947027553723b43b
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SHA512
2636b0262737e4b454f38798f4fe665a2a770b477967ee90bdf3dfed68e2605b4da5baf04f7783d86ed275dc135b77713e466420a016d637c0d409c170575b0d
Malware Config
Extracted
nanocore
1.2.2.0
izu2128.hopto.org:2128
185.244.29.131:2128
21d09d36-4d03-48fe-822f-6fed1c1e2bf0
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activate_away_mode
true
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backup_connection_host
185.244.29.131
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2020-04-12T02:43:07.896430936Z
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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
2128
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default_group
izu2128
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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
21d09d36-4d03-48fe-822f-6fed1c1e2bf0
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
izu2128.hopto.org
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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_0143_07242020.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\DSL Service = "C:\\Program Files (x86)\\DSL Service\\dslsvc.exe" Doc_0143_07242020.exe -
Processes:
Doc_0143_07242020.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Doc_0143_07242020.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Doc_0143_07242020.exedescription pid process target process PID 1828 set thread context of 1496 1828 Doc_0143_07242020.exe Doc_0143_07242020.exe -
Drops file in Program Files directory 2 IoCs
Processes:
Doc_0143_07242020.exedescription ioc process File created C:\Program Files (x86)\DSL Service\dslsvc.exe Doc_0143_07242020.exe File opened for modification C:\Program Files (x86)\DSL Service\dslsvc.exe Doc_0143_07242020.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_0143_07242020.exeDoc_0143_07242020.exeDoc_0143_07242020.exepid process 1828 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1496 Doc_0143_07242020.exe 1496 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe 1988 Doc_0143_07242020.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
Doc_0143_07242020.exepid process 1496 Doc_0143_07242020.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
Doc_0143_07242020.exepid process 1828 Doc_0143_07242020.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Doc_0143_07242020.exedescription pid process Token: SeDebugPrivilege 1496 Doc_0143_07242020.exe -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
Doc_0143_07242020.exeDoc_0143_07242020.exedescription pid process target process PID 1828 wrote to memory of 1496 1828 Doc_0143_07242020.exe Doc_0143_07242020.exe PID 1828 wrote to memory of 1496 1828 Doc_0143_07242020.exe Doc_0143_07242020.exe PID 1828 wrote to memory of 1496 1828 Doc_0143_07242020.exe Doc_0143_07242020.exe PID 1828 wrote to memory of 1496 1828 Doc_0143_07242020.exe Doc_0143_07242020.exe PID 1828 wrote to memory of 1988 1828 Doc_0143_07242020.exe Doc_0143_07242020.exe PID 1828 wrote to memory of 1988 1828 Doc_0143_07242020.exe Doc_0143_07242020.exe PID 1828 wrote to memory of 1988 1828 Doc_0143_07242020.exe Doc_0143_07242020.exe PID 1828 wrote to memory of 1988 1828 Doc_0143_07242020.exe Doc_0143_07242020.exe PID 1496 wrote to memory of 240 1496 Doc_0143_07242020.exe schtasks.exe PID 1496 wrote to memory of 240 1496 Doc_0143_07242020.exe schtasks.exe PID 1496 wrote to memory of 240 1496 Doc_0143_07242020.exe schtasks.exe PID 1496 wrote to memory of 240 1496 Doc_0143_07242020.exe schtasks.exe PID 1496 wrote to memory of 288 1496 Doc_0143_07242020.exe schtasks.exe PID 1496 wrote to memory of 288 1496 Doc_0143_07242020.exe schtasks.exe PID 1496 wrote to memory of 288 1496 Doc_0143_07242020.exe schtasks.exe PID 1496 wrote to memory of 288 1496 Doc_0143_07242020.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Doc_0143_07242020.exe"C:\Users\Admin\AppData\Local\Temp\Doc_0143_07242020.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_0143_07242020.exe"C:\Users\Admin\AppData\Local\Temp\Doc_0143_07242020.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
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "DSL Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp342B.tmp"3⤵
- Creates scheduled task(s)
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "DSL Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3813.tmp"3⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Doc_0143_07242020.exe"C:\Users\Admin\AppData\Local\Temp\Doc_0143_07242020.exe" 2 1496 70896832⤵
- 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\tmp342B.tmpFilesize
1KB
MD5482a11f6933dd0367a2db731febed8d4
SHA184d2d616b75914a5e86e88e32b8649f591e94f5d
SHA256bf423ee5572b1bb1b764c41ffbd7cb2b51b242f6cb7d166f4d08fd071119985d
SHA5124f60f691edaaf7697b9d0ec0664f37f6ac1fc7935599bbde9e2a02c7be046018eaf3a47ba30cc7545c70814f3570b0f953fe4978611d8e5b6017d1f11863f8b7
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C:\Users\Admin\AppData\Local\Temp\tmp3813.tmpFilesize
1KB
MD5f34c9976546ad9fc8624117687e1b732
SHA1df5de84989e77f019a10e10f2e8a44bca2dc620d
SHA256d524ed3f3648a50ab92cf755461af48ed0c973a3edfba3a4cd0fad3d2e833183
SHA512cd90ca19818bcdf0ec6ee9bafd47749e87ffb8f5c4711ef6c73483acf73399b2ab8c7b55f98303fcce409591647741ceb2ddd7b399ad62b2f5b18ed5378c8260
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memory/240-64-0x0000000000000000-mapping.dmp
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memory/288-66-0x0000000000000000-mapping.dmp
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memory/1496-55-0x000000000047D710-mapping.dmp
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memory/1496-57-0x0000000000330000-0x0000000000368000-memory.dmpFilesize
224KB
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memory/1496-60-0x0000000000330000-0x0000000000368000-memory.dmpFilesize
224KB
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memory/1496-63-0x0000000074C00000-0x00000000751AB000-memory.dmpFilesize
5.7MB
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memory/1828-54-0x0000000075741000-0x0000000075743000-memory.dmpFilesize
8KB
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memory/1828-58-0x0000000000400000-0x00000000004C1000-memory.dmpFilesize
772KB
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memory/1988-56-0x0000000000000000-mapping.dmp
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memory/1988-62-0x0000000000400000-0x00000000004C1000-memory.dmpFilesize
772KB