Analysis
-
max time kernel
206s -
max time network
105s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
24-11-2022 00:23
Static task
static1
Behavioral task
behavioral1
Sample
3edfca92f937a2516599fba8ee3a9671a3d887b10eb9670f5fc0d1371a439075.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
3edfca92f937a2516599fba8ee3a9671a3d887b10eb9670f5fc0d1371a439075.exe
Resource
win10v2004-20221111-en
General
-
Target
3edfca92f937a2516599fba8ee3a9671a3d887b10eb9670f5fc0d1371a439075.exe
-
Size
112KB
-
MD5
37fd36aef8ff9bea1bd247ab639ae300
-
SHA1
75c1d23397b3503e9a88b7bf2c3e0b5d5bc1ce0c
-
SHA256
3edfca92f937a2516599fba8ee3a9671a3d887b10eb9670f5fc0d1371a439075
-
SHA512
bb20419bc0e4ec13511eb60db6674c19776b1b7037bc8de2442e79fb60606cf4002bc5c5efbe2a2a034057225fdd129e400f8280a6365fa3234b8a98d4277e1d
-
SSDEEP
1536:HfwdiIigE6eXTzQ+64OM2OMATZgJ6rMhe6rWhA3KaHmKq7I8kIi/uz:odQ6eXo+TrMhe6rM7rxz
Malware Config
Signatures
-
Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
Processes:
3edfca92f937a2516599fba8ee3a9671a3d887b10eb9670f5fc0d1371a439075.exeyiicev.exedescription ioc process Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 3edfca92f937a2516599fba8ee3a9671a3d887b10eb9670f5fc0d1371a439075.exe Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" yiicev.exe -
Executes dropped EXE 1 IoCs
Processes:
yiicev.exepid process 760 yiicev.exe -
Loads dropped DLL 2 IoCs
Processes:
3edfca92f937a2516599fba8ee3a9671a3d887b10eb9670f5fc0d1371a439075.exepid process 1716 3edfca92f937a2516599fba8ee3a9671a3d887b10eb9670f5fc0d1371a439075.exe 1716 3edfca92f937a2516599fba8ee3a9671a3d887b10eb9670f5fc0d1371a439075.exe -
Adds Run key to start application 2 TTPs 29 IoCs
Processes:
yiicev.exe3edfca92f937a2516599fba8ee3a9671a3d887b10eb9670f5fc0d1371a439075.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\ yiicev.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiicev = "C:\\Users\\Admin\\yiicev.exe /w" yiicev.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiicev = "C:\\Users\\Admin\\yiicev.exe /i" yiicev.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiicev = "C:\\Users\\Admin\\yiicev.exe /r" yiicev.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiicev = "C:\\Users\\Admin\\yiicev.exe /o" yiicev.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiicev = "C:\\Users\\Admin\\yiicev.exe /g" 3edfca92f937a2516599fba8ee3a9671a3d887b10eb9670f5fc0d1371a439075.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiicev = "C:\\Users\\Admin\\yiicev.exe /t" yiicev.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiicev = "C:\\Users\\Admin\\yiicev.exe /v" yiicev.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiicev = "C:\\Users\\Admin\\yiicev.exe /k" yiicev.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiicev = "C:\\Users\\Admin\\yiicev.exe /l" yiicev.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiicev = "C:\\Users\\Admin\\yiicev.exe /y" yiicev.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiicev = "C:\\Users\\Admin\\yiicev.exe /e" yiicev.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiicev = "C:\\Users\\Admin\\yiicev.exe /c" yiicev.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiicev = "C:\\Users\\Admin\\yiicev.exe /m" yiicev.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiicev = "C:\\Users\\Admin\\yiicev.exe /f" yiicev.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiicev = "C:\\Users\\Admin\\yiicev.exe /p" yiicev.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiicev = "C:\\Users\\Admin\\yiicev.exe /z" yiicev.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiicev = "C:\\Users\\Admin\\yiicev.exe /j" yiicev.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiicev = "C:\\Users\\Admin\\yiicev.exe /d" yiicev.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiicev = "C:\\Users\\Admin\\yiicev.exe /b" yiicev.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 3edfca92f937a2516599fba8ee3a9671a3d887b10eb9670f5fc0d1371a439075.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiicev = "C:\\Users\\Admin\\yiicev.exe /q" yiicev.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiicev = "C:\\Users\\Admin\\yiicev.exe /s" yiicev.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiicev = "C:\\Users\\Admin\\yiicev.exe /x" yiicev.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiicev = "C:\\Users\\Admin\\yiicev.exe /h" yiicev.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiicev = "C:\\Users\\Admin\\yiicev.exe /u" yiicev.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiicev = "C:\\Users\\Admin\\yiicev.exe /a" yiicev.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiicev = "C:\\Users\\Admin\\yiicev.exe /n" yiicev.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiicev = "C:\\Users\\Admin\\yiicev.exe /g" yiicev.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
3edfca92f937a2516599fba8ee3a9671a3d887b10eb9670f5fc0d1371a439075.exeyiicev.exepid process 1716 3edfca92f937a2516599fba8ee3a9671a3d887b10eb9670f5fc0d1371a439075.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe 760 yiicev.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
3edfca92f937a2516599fba8ee3a9671a3d887b10eb9670f5fc0d1371a439075.exeyiicev.exepid process 1716 3edfca92f937a2516599fba8ee3a9671a3d887b10eb9670f5fc0d1371a439075.exe 760 yiicev.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
3edfca92f937a2516599fba8ee3a9671a3d887b10eb9670f5fc0d1371a439075.exedescription pid process target process PID 1716 wrote to memory of 760 1716 3edfca92f937a2516599fba8ee3a9671a3d887b10eb9670f5fc0d1371a439075.exe yiicev.exe PID 1716 wrote to memory of 760 1716 3edfca92f937a2516599fba8ee3a9671a3d887b10eb9670f5fc0d1371a439075.exe yiicev.exe PID 1716 wrote to memory of 760 1716 3edfca92f937a2516599fba8ee3a9671a3d887b10eb9670f5fc0d1371a439075.exe yiicev.exe PID 1716 wrote to memory of 760 1716 3edfca92f937a2516599fba8ee3a9671a3d887b10eb9670f5fc0d1371a439075.exe yiicev.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\3edfca92f937a2516599fba8ee3a9671a3d887b10eb9670f5fc0d1371a439075.exe"C:\Users\Admin\AppData\Local\Temp\3edfca92f937a2516599fba8ee3a9671a3d887b10eb9670f5fc0d1371a439075.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1716 -
C:\Users\Admin\yiicev.exe"C:\Users\Admin\yiicev.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:760
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
112KB
MD51ccc09fe8d965264af8fc5e100801f47
SHA1cd633400405e636de947c0e56934a5dd17e37aec
SHA2569a148d8329d63afc7c3eae285ed391c671ea7d211f82c72c4d9d4f2c7181ff9c
SHA512def9b754746e13a87b5304c36914dcca56c8bf5195654d67e2684b96abe0cf2195e1e1d4075f45ea28fc6ec8f18102cdae5caa6438e1cad69c97f4739305d491
-
Filesize
112KB
MD51ccc09fe8d965264af8fc5e100801f47
SHA1cd633400405e636de947c0e56934a5dd17e37aec
SHA2569a148d8329d63afc7c3eae285ed391c671ea7d211f82c72c4d9d4f2c7181ff9c
SHA512def9b754746e13a87b5304c36914dcca56c8bf5195654d67e2684b96abe0cf2195e1e1d4075f45ea28fc6ec8f18102cdae5caa6438e1cad69c97f4739305d491
-
Filesize
112KB
MD51ccc09fe8d965264af8fc5e100801f47
SHA1cd633400405e636de947c0e56934a5dd17e37aec
SHA2569a148d8329d63afc7c3eae285ed391c671ea7d211f82c72c4d9d4f2c7181ff9c
SHA512def9b754746e13a87b5304c36914dcca56c8bf5195654d67e2684b96abe0cf2195e1e1d4075f45ea28fc6ec8f18102cdae5caa6438e1cad69c97f4739305d491
-
Filesize
112KB
MD51ccc09fe8d965264af8fc5e100801f47
SHA1cd633400405e636de947c0e56934a5dd17e37aec
SHA2569a148d8329d63afc7c3eae285ed391c671ea7d211f82c72c4d9d4f2c7181ff9c
SHA512def9b754746e13a87b5304c36914dcca56c8bf5195654d67e2684b96abe0cf2195e1e1d4075f45ea28fc6ec8f18102cdae5caa6438e1cad69c97f4739305d491