Analysis
- max time kernel
152s - max time network
49s - platform
windows7_x64 - resource
win7-20220812-en - resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system - submitted
05/12/2022, 10:37
Static task
static1
Behavioral task
behavioral1
Sample
b8f8926ca34c228d4cf228098d20422c8774ba686e2ab23117e6c56784c36833.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
b8f8926ca34c228d4cf228098d20422c8774ba686e2ab23117e6c56784c36833.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target b8f8926ca34c228d4cf228098d20422c8774ba686e2ab23117e6c56784c36833.exe
- Size 180KB
- Sample221205-mntmasbd52
- SHA256 b8f8926ca34c228d4cf228098d20422c8774ba686e2ab23117e6c56784c36833
- MD5 51118c55e41910d00c5587d99cbc8317
- SHA1 3fad84f553119d5595fd341b085c43e9e19f6c48
- SHA512 8656991b53fe16ed0933d23102be0a20fae81588ac0d60efabb39f19a87acf36ac434e01477d2896cf057b81f787e0010aadd442b76e9034d3606154e76f6784
- SSDEEP 3072:hyHodVAXY71idPAaWELGzMshNXTDFE+7jF6XTrCk:hyHozAY+oXqFshNTDT756XTR
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" b8f8926ca34c228d4cf228098d20422c8774ba686e2ab23117e6c56784c36833.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" plsep.exe - Executes dropped EXE 1 IoCs
pid Process 960 plsep.exe - Loads dropped DLL 2 IoCs
pid Process 328 b8f8926ca34c228d4cf228098d20422c8774ba686e2ab23117e6c56784c36833.exe 328 b8f8926ca34c228d4cf228098d20422c8774ba686e2ab23117e6c56784c36833.exe - Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\plsep = "C:\\Users\\Admin\\plsep.exe /g" plsep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\plsep = "C:\\Users\\Admin\\plsep.exe /j" plsep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\plsep = "C:\\Users\\Admin\\plsep.exe /s" plsep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\plsep = "C:\\Users\\Admin\\plsep.exe /r" plsep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\plsep = "C:\\Users\\Admin\\plsep.exe /y" plsep.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ b8f8926ca34c228d4cf228098d20422c8774ba686e2ab23117e6c56784c36833.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\plsep = "C:\\Users\\Admin\\plsep.exe /c" plsep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\plsep = "C:\\Users\\Admin\\plsep.exe /z" plsep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\plsep = "C:\\Users\\Admin\\plsep.exe /n" plsep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\plsep = "C:\\Users\\Admin\\plsep.exe /m" plsep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\plsep = "C:\\Users\\Admin\\plsep.exe /v" plsep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\plsep = "C:\\Users\\Admin\\plsep.exe /u" plsep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\plsep = "C:\\Users\\Admin\\plsep.exe /t" plsep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\plsep = "C:\\Users\\Admin\\plsep.exe /x" plsep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\plsep = "C:\\Users\\Admin\\plsep.exe /d" plsep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\plsep = "C:\\Users\\Admin\\plsep.exe /q" plsep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\plsep = "C:\\Users\\Admin\\plsep.exe /f" plsep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\plsep = "C:\\Users\\Admin\\plsep.exe /i" plsep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\plsep = "C:\\Users\\Admin\\plsep.exe /o" plsep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\plsep = "C:\\Users\\Admin\\plsep.exe /a" plsep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\plsep = "C:\\Users\\Admin\\plsep.exe /p" plsep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\plsep = "C:\\Users\\Admin\\plsep.exe /w" plsep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\plsep = "C:\\Users\\Admin\\plsep.exe /l" plsep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\plsep = "C:\\Users\\Admin\\plsep.exe /h" plsep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\plsep = "C:\\Users\\Admin\\plsep.exe /e" plsep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\plsep = "C:\\Users\\Admin\\plsep.exe /b" plsep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\plsep = "C:\\Users\\Admin\\plsep.exe /k" b8f8926ca34c228d4cf228098d20422c8774ba686e2ab23117e6c56784c36833.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ plsep.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\plsep = "C:\\Users\\Admin\\plsep.exe /k" plsep.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 328 b8f8926ca34c228d4cf228098d20422c8774ba686e2ab23117e6c56784c36833.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe 960 plsep.exe - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 328 b8f8926ca34c228d4cf228098d20422c8774ba686e2ab23117e6c56784c36833.exe 960 plsep.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 328 wrote to memory of 960 328 b8f8926ca34c228d4cf228098d20422c8774ba686e2ab23117e6c56784c36833.exe 27 PID 328 wrote to memory of 960 328 b8f8926ca34c228d4cf228098d20422c8774ba686e2ab23117e6c56784c36833.exe 27 PID 328 wrote to memory of 960 328 b8f8926ca34c228d4cf228098d20422c8774ba686e2ab23117e6c56784c36833.exe 27 PID 328 wrote to memory of 960 328 b8f8926ca34c228d4cf228098d20422c8774ba686e2ab23117e6c56784c36833.exe 27
Processes
-
C:\Users\Admin\AppData\Local\Temp\b8f8926ca34c228d4cf228098d20422c8774ba686e2ab23117e6c56784c36833.exe"C:\Users\Admin\AppData\Local\Temp\b8f8926ca34c228d4cf228098d20422c8774ba686e2ab23117e6c56784c36833.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:328 -
C:\Users\Admin\plsep.exe"C:\Users\Admin\plsep.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:960
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\plsep.exe
- Size 180KB
- SHA256 39ceae4de485bbbd19c23999739d698ba9793c84a175fb3ff5baae480d924206
- MD5 df46b03dbf255156f64e2800c59dfeb1
- SHA1 34b69ace0e2c469dbbea3ef4d50594402f981c0e
- SHA512 53c3aab272e33a473e384070b9a85165239ab5a2f88e9120faedfd090e89ca5f29c7046ec9534d86eb491bc84e4049d27ccec9fc8e63c694cfaea600fc09c903
- SSDEEP 3072:hyTdTdVAXY71idPAaWELGzMshNXTDFE+7jF6XTrIS:hy5TzAY+oXqFshNTDT756XTh
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\plsep.exe
- Size 180KB
- SHA256 39ceae4de485bbbd19c23999739d698ba9793c84a175fb3ff5baae480d924206
- MD5 df46b03dbf255156f64e2800c59dfeb1
- SHA1 34b69ace0e2c469dbbea3ef4d50594402f981c0e
- SHA512 53c3aab272e33a473e384070b9a85165239ab5a2f88e9120faedfd090e89ca5f29c7046ec9534d86eb491bc84e4049d27ccec9fc8e63c694cfaea600fc09c903
- SSDEEP 3072:hyTdTdVAXY71idPAaWELGzMshNXTDFE+7jF6XTrIS:hy5TzAY+oXqFshNTDT756XTh
- MD5 SHA1 SHA512 SSDEEP
- Path \Users\Admin\plsep.exe
- Size 180KB
- SHA256 39ceae4de485bbbd19c23999739d698ba9793c84a175fb3ff5baae480d924206
- MD5 df46b03dbf255156f64e2800c59dfeb1
- SHA1 34b69ace0e2c469dbbea3ef4d50594402f981c0e
- SHA512 53c3aab272e33a473e384070b9a85165239ab5a2f88e9120faedfd090e89ca5f29c7046ec9534d86eb491bc84e4049d27ccec9fc8e63c694cfaea600fc09c903
- SSDEEP 3072:hyTdTdVAXY71idPAaWELGzMshNXTDFE+7jF6XTrIS:hy5TzAY+oXqFshNTDT756XTh
- MD5 SHA1 SHA512 SSDEEP
- Path \Users\Admin\plsep.exe
- Size 180KB
- SHA256 39ceae4de485bbbd19c23999739d698ba9793c84a175fb3ff5baae480d924206
- MD5 df46b03dbf255156f64e2800c59dfeb1
- SHA1 34b69ace0e2c469dbbea3ef4d50594402f981c0e
- SHA512 53c3aab272e33a473e384070b9a85165239ab5a2f88e9120faedfd090e89ca5f29c7046ec9534d86eb491bc84e4049d27ccec9fc8e63c694cfaea600fc09c903
- SSDEEP 3072:hyTdTdVAXY71idPAaWELGzMshNXTDFE+7jF6XTrIS:hy5TzAY+oXqFshNTDT756XTh
- MD5 SHA1 SHA512 SSDEEP