Analysis
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max time kernel
145s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
20-05-2022 23:47
Static task
static1
Behavioral task
behavioral1
Sample
22021Item_list_sheet#7292020_PDF.exe
Resource
win7-20220414-en
General
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Target
22021Item_list_sheet#7292020_PDF.exe
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Size
728KB
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MD5
e989518eabe414ef4b959eb7de190e7c
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SHA1
babf737fe0bdc53992f6a5e0ee5d761dd21fb89a
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SHA256
ccd0bc8e90dc66863f6aab4a7d41e633ffb0799acf61e400c0e8f2568279c696
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SHA512
16f5f78f5860e8196b1674ae7a4f790b503a567888eb7a8644b259d525e8ff9d458f7bd744f853a5e612d8a925639098c751b17bdc1a3b451594a9067c574267
Malware Config
Extracted
nanocore
1.2.2.0
79.134.225.71:1990
5fd0d027-cda9-482d-9afc-936cf207303c
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activate_away_mode
true
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backup_connection_host
79.134.225.71
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2020-05-10T12:21:42.299711836Z
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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
1990
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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
5fd0d027-cda9-482d-9afc-936cf207303c
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
79.134.225.71
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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:
22021Item_list_sheet#7292020_PDF.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\TCP Service = "C:\\Program Files (x86)\\TCP Service\\tcpsvc.exe" 22021Item_list_sheet#7292020_PDF.exe -
Processes:
22021Item_list_sheet#7292020_PDF.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 22021Item_list_sheet#7292020_PDF.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
22021Item_list_sheet#7292020_PDF.exedescription pid process target process PID 1488 set thread context of 4708 1488 22021Item_list_sheet#7292020_PDF.exe 22021Item_list_sheet#7292020_PDF.exe -
Drops file in Program Files directory 2 IoCs
Processes:
22021Item_list_sheet#7292020_PDF.exedescription ioc process File created C:\Program Files (x86)\TCP Service\tcpsvc.exe 22021Item_list_sheet#7292020_PDF.exe File opened for modification C:\Program Files (x86)\TCP Service\tcpsvc.exe 22021Item_list_sheet#7292020_PDF.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 9 IoCs
Processes:
22021Item_list_sheet#7292020_PDF.exe22021Item_list_sheet#7292020_PDF.exepid process 1488 22021Item_list_sheet#7292020_PDF.exe 1488 22021Item_list_sheet#7292020_PDF.exe 1488 22021Item_list_sheet#7292020_PDF.exe 1488 22021Item_list_sheet#7292020_PDF.exe 1488 22021Item_list_sheet#7292020_PDF.exe 1488 22021Item_list_sheet#7292020_PDF.exe 4708 22021Item_list_sheet#7292020_PDF.exe 4708 22021Item_list_sheet#7292020_PDF.exe 4708 22021Item_list_sheet#7292020_PDF.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
22021Item_list_sheet#7292020_PDF.exepid process 4708 22021Item_list_sheet#7292020_PDF.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
22021Item_list_sheet#7292020_PDF.exe22021Item_list_sheet#7292020_PDF.exedescription pid process Token: SeDebugPrivilege 1488 22021Item_list_sheet#7292020_PDF.exe Token: SeDebugPrivilege 4708 22021Item_list_sheet#7292020_PDF.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
22021Item_list_sheet#7292020_PDF.exe22021Item_list_sheet#7292020_PDF.exedescription pid process target process PID 1488 wrote to memory of 4708 1488 22021Item_list_sheet#7292020_PDF.exe 22021Item_list_sheet#7292020_PDF.exe PID 1488 wrote to memory of 4708 1488 22021Item_list_sheet#7292020_PDF.exe 22021Item_list_sheet#7292020_PDF.exe PID 1488 wrote to memory of 4708 1488 22021Item_list_sheet#7292020_PDF.exe 22021Item_list_sheet#7292020_PDF.exe PID 1488 wrote to memory of 4708 1488 22021Item_list_sheet#7292020_PDF.exe 22021Item_list_sheet#7292020_PDF.exe PID 1488 wrote to memory of 4708 1488 22021Item_list_sheet#7292020_PDF.exe 22021Item_list_sheet#7292020_PDF.exe PID 1488 wrote to memory of 4708 1488 22021Item_list_sheet#7292020_PDF.exe 22021Item_list_sheet#7292020_PDF.exe PID 1488 wrote to memory of 4708 1488 22021Item_list_sheet#7292020_PDF.exe 22021Item_list_sheet#7292020_PDF.exe PID 1488 wrote to memory of 4708 1488 22021Item_list_sheet#7292020_PDF.exe 22021Item_list_sheet#7292020_PDF.exe PID 4708 wrote to memory of 848 4708 22021Item_list_sheet#7292020_PDF.exe schtasks.exe PID 4708 wrote to memory of 848 4708 22021Item_list_sheet#7292020_PDF.exe schtasks.exe PID 4708 wrote to memory of 848 4708 22021Item_list_sheet#7292020_PDF.exe schtasks.exe PID 4708 wrote to memory of 4596 4708 22021Item_list_sheet#7292020_PDF.exe schtasks.exe PID 4708 wrote to memory of 4596 4708 22021Item_list_sheet#7292020_PDF.exe schtasks.exe PID 4708 wrote to memory of 4596 4708 22021Item_list_sheet#7292020_PDF.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\22021Item_list_sheet#7292020_PDF.exe"C:\Users\Admin\AppData\Local\Temp\22021Item_list_sheet#7292020_PDF.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\22021Item_list_sheet#7292020_PDF.exe"{path}"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 "TCP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp2DE6.tmp"3⤵
- Creates scheduled task(s)
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C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "TCP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp49AC.tmp"3⤵
- Creates scheduled task(s)
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\22021Item_list_sheet#7292020_PDF.exe.logFilesize
611B
MD5bceb1b24038a079a8046db250ce33039
SHA195d2a21b00e5c127f023d2950afe052d2acba572
SHA256d5237a1aac346aaff3cedaca0a567afa529b84a21676e4c7017c9f87cfb32d57
SHA512182dc30cd1e600da9b7ea1ca12860fd82237b04de293899d19ab7edb8b2bcdb37e30d387bbdbb54acdbecdb8200f5a39d417abd91d2b4c11fd126a9e4d0f050e
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C:\Users\Admin\AppData\Local\Temp\tmp2DE6.tmpFilesize
1KB
MD5cc82d5f0e6ca65b3ec003db76ca541ac
SHA123c4203f4d8870d5415d6ff20bff4908f0858c63
SHA2569c80dd14fa43eae7b36e96799958d354db1adb59e1ffedc9cb7fe5b41a2c9e56
SHA51267f63e8bc7e782e372da2ff1de43d7471119677c9a36be304b0458a5d6f95f9cb3a51ef89d7ef50e90c183f1d2a774eff37c321902ac381a344c3bbb6db1da03
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C:\Users\Admin\AppData\Local\Temp\tmp49AC.tmpFilesize
1KB
MD59db6095f31f8b4ae8173fe11424a8dfe
SHA14b0655ae95def24a41710ca137649d93bfa49407
SHA2569911b4513e44521c90c020ddcddea1ddc58095055a72ec638b593bf9ee23aa72
SHA5125bee977264545a30a2d53e674f54a4066d4529dc9162d46911b9cac957052cdc1ea7c8d60f9c57d3f33db6cb964b1e6bb2347d0e0e2af0a32ac98938c02ffc1c
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memory/848-138-0x0000000000000000-mapping.dmp
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memory/1488-130-0x0000000000BA0000-0x0000000000C5C000-memory.dmpFilesize
752KB
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memory/1488-131-0x0000000007E10000-0x0000000007EAC000-memory.dmpFilesize
624KB
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memory/1488-132-0x0000000007F50000-0x0000000007FE2000-memory.dmpFilesize
584KB
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memory/4596-140-0x0000000000000000-mapping.dmp
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memory/4708-133-0x0000000000000000-mapping.dmp
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memory/4708-134-0x0000000000400000-0x0000000000438000-memory.dmpFilesize
224KB
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memory/4708-136-0x00000000057F0000-0x0000000005D94000-memory.dmpFilesize
5.6MB
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memory/4708-137-0x0000000005200000-0x000000000520A000-memory.dmpFilesize
40KB