Analysis
- max time kernel
145s - max time network
153s - platform
windows7_x64 - resource
win7-20220812-en - resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system - submitted
20/10/2022, 21:31
Static task
static1
Behavioral task
behavioral1
Sample
Revised Company_Handbook_pdf.exe
Resource
win7-20220812-en
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
Revised Company_Handbook_pdf.exe
Resource
win10v2004-20220812-en
11 signatures
150 seconds
General
- Target Revised Company_Handbook_pdf.exe
- Size 175KB
- Sample221020-1c14wsfef2
- SHA256 dccb778387d26b2364ceec6e9099f78f8da0f1f2c13d987eeb9fb51cc48e19d6
- MD5 1b7ef597519c9aceeb009466b95905c0
- SHA1 41fcca20ae3db9ef43caf468d1b7698cc6cb8feb
- SHA512 39693f1b222f0e55b2598263e79d1cb7a44ff545dedc8b2bc7017363a00a8a3b954d7d9c906c6568cc2decfd416e241cbdb1b48e1894bb10dfbb1159382807d2
- SSDEEP 3072:mbG7N2kDTHUpou/b9psmJOd9EtY/Myh1J6hcwaaHT1f8Et85GXXgZ9YO+dIm2eeq:mbE/HUbDEdgyR6rHTi69g7YRj2flo
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 1176 kcorpxneaj.exe - Loads dropped DLL 3 IoCs
pid Process 288 Revised Company_Handbook_pdf.exe 1176 kcorpxneaj.exe 1492 kcorpxneaj.exe - Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook kcorpxneaj.exe Key opened \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook kcorpxneaj.exe Key opened \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook kcorpxneaj.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1176 set thread context of 1492 1176 kcorpxneaj.exe 27 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1492 kcorpxneaj.exe - Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 288 wrote to memory of 1176 288 Revised Company_Handbook_pdf.exe 26 PID 288 wrote to memory of 1176 288 Revised Company_Handbook_pdf.exe 26 PID 288 wrote to memory of 1176 288 Revised Company_Handbook_pdf.exe 26 PID 288 wrote to memory of 1176 288 Revised Company_Handbook_pdf.exe 26 PID 1176 wrote to memory of 1492 1176 kcorpxneaj.exe 27 PID 1176 wrote to memory of 1492 1176 kcorpxneaj.exe 27 PID 1176 wrote to memory of 1492 1176 kcorpxneaj.exe 27 PID 1176 wrote to memory of 1492 1176 kcorpxneaj.exe 27 PID 1176 wrote to memory of 1492 1176 kcorpxneaj.exe 27 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook kcorpxneaj.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook kcorpxneaj.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\Revised Company_Handbook_pdf.exe"C:\Users\Admin\AppData\Local\Temp\Revised Company_Handbook_pdf.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:288 -
C:\Users\Admin\AppData\Local\Temp\kcorpxneaj.exe"C:\Users\Admin\AppData\Local\Temp\kcorpxneaj.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1176 -
C:\Users\Admin\AppData\Local\Temp\kcorpxneaj.exe"C:\Users\Admin\AppData\Local\Temp\kcorpxneaj.exe"3⤵
- Loads dropped DLL
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1492
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hdstsmp.f
- Size 104KB
- SHA256 438ff78eaf354d7680246e6a27b38e8912d87ee21f46b186a667ca8b042cc316
- MD5 bb5bfd8c62984f9465eac86bc2a6c148
- SHA1 5bcb764fffc85dd7f37c88265c612c8ef7e38302
- SHA512 bcbd216a47b53f2aaefa7e38fc1b22dd918dbdc16fed85cbcd56c1fb04a244a611c86df4970f933c707984d2de27902cd268db1c676ce0ecab0f31d2d4b7a8fa
- SSDEEP 3072:k+pBYfc0LqYfclcEKULZwJkrzwWbIVUOZB:tsc0O5uDaaHT
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\kcorpxneaj.exe
- Size 74KB
- SHA256 9e108a6d9bcc68087f63ee3432cb167fc73b95eadb9453a6a78bef995f3a1216
- MD5 ab0e54a3090817a83dbe173d7d951469
- SHA1 60a004b06eea152d2bef1594934bc8bed15f67ed
- SHA512 dd2439c654935354935b407cbc41fdb74ccb7a5c5fb6b17b3b156082537d9d171abdcb4c7363f20434d710e69bd8620df97fd307778ddb54136eff6c5be02c3c
- SSDEEP 1536:/Z47WEYxtX4N6pWJ9RdWr/YjcCzT9cbM4F4GVHPeKJ/zJ5sWRScdZD+6Ia:/n4N6pWJXqCzT9cbM46GtxzPZa6Ia
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\kcorpxneaj.exe
- Size 74KB
- SHA256 9e108a6d9bcc68087f63ee3432cb167fc73b95eadb9453a6a78bef995f3a1216
- MD5 ab0e54a3090817a83dbe173d7d951469
- SHA1 60a004b06eea152d2bef1594934bc8bed15f67ed
- SHA512 dd2439c654935354935b407cbc41fdb74ccb7a5c5fb6b17b3b156082537d9d171abdcb4c7363f20434d710e69bd8620df97fd307778ddb54136eff6c5be02c3c
- SSDEEP 1536:/Z47WEYxtX4N6pWJ9RdWr/YjcCzT9cbM4F4GVHPeKJ/zJ5sWRScdZD+6Ia:/n4N6pWJXqCzT9cbM46GtxzPZa6Ia
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\kcorpxneaj.exe
- Size 74KB
- SHA256 9e108a6d9bcc68087f63ee3432cb167fc73b95eadb9453a6a78bef995f3a1216
- MD5 ab0e54a3090817a83dbe173d7d951469
- SHA1 60a004b06eea152d2bef1594934bc8bed15f67ed
- SHA512 dd2439c654935354935b407cbc41fdb74ccb7a5c5fb6b17b3b156082537d9d171abdcb4c7363f20434d710e69bd8620df97fd307778ddb54136eff6c5be02c3c
- SSDEEP 1536:/Z47WEYxtX4N6pWJ9RdWr/YjcCzT9cbM4F4GVHPeKJ/zJ5sWRScdZD+6Ia:/n4N6pWJXqCzT9cbM46GtxzPZa6Ia
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\nyvqmavgta.on
- Size 4KB
- SHA256 52d67b4c898edc6de62fe58ce82a8fe7b2e77258a8407fe8a51f6d454d6e4f98
- MD5 97ff92ac0197e441f5d8928f2048e561
- SHA1 d8521053c0009c4ddf72b0789b47447b676fb0cf
- SHA512 f189d7e1f8bd9c32ac9342e346754be84cd61adf9fdc611407386dd407757b02867720ce00bb2fc94eac0fdf34c379b7e59cc3a2ac4012396335ee0183260465
- SSDEEP 96:B2p8Suqgta5hGqVRxV4h/syCt5kRX8NRKT0iC2Zd6yoC4BZ:8pOqgIq0vVyCtlK8qdhB4f
- MD5 SHA1 SHA512 SSDEEP
- Path \Users\Admin\AppData\Local\Temp\kcorpxneaj.exe
- Size 74KB
- SHA256 9e108a6d9bcc68087f63ee3432cb167fc73b95eadb9453a6a78bef995f3a1216
- MD5 ab0e54a3090817a83dbe173d7d951469
- SHA1 60a004b06eea152d2bef1594934bc8bed15f67ed
- SHA512 dd2439c654935354935b407cbc41fdb74ccb7a5c5fb6b17b3b156082537d9d171abdcb4c7363f20434d710e69bd8620df97fd307778ddb54136eff6c5be02c3c
- SSDEEP 1536:/Z47WEYxtX4N6pWJ9RdWr/YjcCzT9cbM4F4GVHPeKJ/zJ5sWRScdZD+6Ia:/n4N6pWJXqCzT9cbM46GtxzPZa6Ia
- MD5 SHA1 SHA512 SSDEEP
- Path \Users\Admin\AppData\Local\Temp\kcorpxneaj.exe
- Size 74KB
- SHA256 9e108a6d9bcc68087f63ee3432cb167fc73b95eadb9453a6a78bef995f3a1216
- MD5 ab0e54a3090817a83dbe173d7d951469
- SHA1 60a004b06eea152d2bef1594934bc8bed15f67ed
- SHA512 dd2439c654935354935b407cbc41fdb74ccb7a5c5fb6b17b3b156082537d9d171abdcb4c7363f20434d710e69bd8620df97fd307778ddb54136eff6c5be02c3c
- SSDEEP 1536:/Z47WEYxtX4N6pWJ9RdWr/YjcCzT9cbM4F4GVHPeKJ/zJ5sWRScdZD+6Ia:/n4N6pWJXqCzT9cbM46GtxzPZa6Ia
- MD5 SHA1 SHA512 SSDEEP