Analysis
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max time kernel
145s -
max time network
146s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
21-04-2021 06:02
Static task
static1
Behavioral task
behavioral1
Sample
KR033172A562700243.PDF.exe
Resource
win7v20210408
General
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Target
KR033172A562700243.PDF.exe
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Size
789KB
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MD5
5ca9ea11f89e982fc93ad12e656648a8
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SHA1
0d0bd9cb9549638218db8c3442a3047e25ffc9a9
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SHA256
9a0550bcf1c770a3febe17adb59aa91717654e4d660fca29bd7ccff14da6256f
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SHA512
cd4f2d1ba153dea1d28a12d9566fdf5bb183ba795584b7e6dc049cb5e4fb1c007fa6581c1cec77f0c0917b9050300dc54213fdc877ab5c69905237dd8dff8262
Malware Config
Extracted
netwire
194.156.90.31:5008
-
activex_autorun
false
- activex_key
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copy_executable
false
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delete_original
false
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host_id
APRL-WORK
- install_path
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keylogger_dir
%AppData%\Logs\
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lock_executable
false
- mutex
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offline_keylogger
true
-
password
Password
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registry_autorun
false
- startup_name
-
use_mutex
false
Signatures
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NetWire RAT payload 3 IoCs
Processes:
resource yara_rule behavioral2/memory/2772-126-0x0000000000400000-0x0000000000433000-memory.dmp netwire behavioral2/memory/2772-127-0x000000000040242D-mapping.dmp netwire behavioral2/memory/2772-128-0x0000000000400000-0x0000000000433000-memory.dmp netwire -
Suspicious use of SetThreadContext 1 IoCs
Processes:
KR033172A562700243.PDF.exedescription pid Process procid_target PID 512 set thread context of 2772 512 KR033172A562700243.PDF.exe 82 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
KR033172A562700243.PDF.exepid Process 512 KR033172A562700243.PDF.exe 512 KR033172A562700243.PDF.exe 512 KR033172A562700243.PDF.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
KR033172A562700243.PDF.exedescription pid Process Token: SeDebugPrivilege 512 KR033172A562700243.PDF.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
KR033172A562700243.PDF.exedescription pid Process procid_target PID 512 wrote to memory of 4016 512 KR033172A562700243.PDF.exe 79 PID 512 wrote to memory of 4016 512 KR033172A562700243.PDF.exe 79 PID 512 wrote to memory of 4016 512 KR033172A562700243.PDF.exe 79 PID 512 wrote to memory of 2728 512 KR033172A562700243.PDF.exe 81 PID 512 wrote to memory of 2728 512 KR033172A562700243.PDF.exe 81 PID 512 wrote to memory of 2728 512 KR033172A562700243.PDF.exe 81 PID 512 wrote to memory of 2772 512 KR033172A562700243.PDF.exe 82 PID 512 wrote to memory of 2772 512 KR033172A562700243.PDF.exe 82 PID 512 wrote to memory of 2772 512 KR033172A562700243.PDF.exe 82 PID 512 wrote to memory of 2772 512 KR033172A562700243.PDF.exe 82 PID 512 wrote to memory of 2772 512 KR033172A562700243.PDF.exe 82 PID 512 wrote to memory of 2772 512 KR033172A562700243.PDF.exe 82 PID 512 wrote to memory of 2772 512 KR033172A562700243.PDF.exe 82 PID 512 wrote to memory of 2772 512 KR033172A562700243.PDF.exe 82 PID 512 wrote to memory of 2772 512 KR033172A562700243.PDF.exe 82 PID 512 wrote to memory of 2772 512 KR033172A562700243.PDF.exe 82 PID 512 wrote to memory of 2772 512 KR033172A562700243.PDF.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\KR033172A562700243.PDF.exe"C:\Users\Admin\AppData\Local\Temp\KR033172A562700243.PDF.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:512 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qZYahesl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7EEA.tmp"2⤵
- Creates scheduled task(s)
PID:4016
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C:\Users\Admin\AppData\Local\Temp\KR033172A562700243.PDF.exe"{path}"2⤵PID:2728
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C:\Users\Admin\AppData\Local\Temp\KR033172A562700243.PDF.exe"{path}"2⤵PID:2772
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
0e6bc0c8be74ddebc8e30c44e7cac2fc
SHA10f5b45070bd18ad2fc87183a3f685e8937a6f753
SHA256a86f67266049224a7a5c1eb4be6489543db2848038df683c38e686f7002b13df
SHA51266282a7d2e39d74c0950e68f12286e249452378e3f5af30f15db519bb2d5bdc479ec59ead12c5c3f276eaaddd3285adf5a15081030f8de33c7fa5c7671c613bd