Analysis
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max time kernel
119s -
max time network
124s -
platform
windows10_x64 -
resource
win10-en-20211104 -
submitted
01-12-2021 07:40
Static task
static1
Behavioral task
behavioral1
Sample
eb5c3f8a581a2bbe778a586697a9b341.exe
Resource
win7-en-20211014
Behavioral task
behavioral2
Sample
eb5c3f8a581a2bbe778a586697a9b341.exe
Resource
win10-en-20211104
General
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Target
eb5c3f8a581a2bbe778a586697a9b341.exe
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Size
870KB
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MD5
eb5c3f8a581a2bbe778a586697a9b341
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SHA1
4d54306bc2410cece081f1db159665962df9a8da
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SHA256
4c65f92cd878c051338bda2ff251c8714d6b7ae2bcea06e73bc954661e993571
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SHA512
2878804b5beb838661d983dd7e4ccf48a872a512b4d6260159b3de2fd85d00149869d30a26677500b51b13af6485180441acbdba0a0c7a981c8efb07d4752fc0
Malware Config
Extracted
Protocol: smtp- Host:
mail.thts.vn - Port:
25 - Username:
[email protected] - Password:
123luongngan1989
Extracted
matiex
Protocol: smtp- Host:
mail.thts.vn - Port:
25 - Username:
[email protected] - Password:
123luongngan1989
Signatures
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Matiex Main Payload 3 IoCs
Processes:
resource yara_rule behavioral2/memory/2252-127-0x0000000000400000-0x0000000000472000-memory.dmp family_matiex behavioral2/memory/2252-128-0x000000000046DCFE-mapping.dmp family_matiex behavioral2/memory/2252-135-0x0000000005020000-0x000000000551E000-memory.dmp family_matiex -
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
eb5c3f8a581a2bbe778a586697a9b341.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 eb5c3f8a581a2bbe778a586697a9b341.exe Key opened \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 eb5c3f8a581a2bbe778a586697a9b341.exe Key opened \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 eb5c3f8a581a2bbe778a586697a9b341.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 33 freegeoip.app 29 checkip.dyndns.org 32 freegeoip.app -
Suspicious use of SetThreadContext 1 IoCs
Processes:
eb5c3f8a581a2bbe778a586697a9b341.exedescription pid process target process PID 2588 set thread context of 2252 2588 eb5c3f8a581a2bbe778a586697a9b341.exe eb5c3f8a581a2bbe778a586697a9b341.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
eb5c3f8a581a2bbe778a586697a9b341.exepid process 2252 eb5c3f8a581a2bbe778a586697a9b341.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
eb5c3f8a581a2bbe778a586697a9b341.exedescription pid process Token: SeDebugPrivilege 2252 eb5c3f8a581a2bbe778a586697a9b341.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
eb5c3f8a581a2bbe778a586697a9b341.exepid process 2252 eb5c3f8a581a2bbe778a586697a9b341.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
eb5c3f8a581a2bbe778a586697a9b341.exedescription pid process target process PID 2588 wrote to memory of 2252 2588 eb5c3f8a581a2bbe778a586697a9b341.exe eb5c3f8a581a2bbe778a586697a9b341.exe PID 2588 wrote to memory of 2252 2588 eb5c3f8a581a2bbe778a586697a9b341.exe eb5c3f8a581a2bbe778a586697a9b341.exe PID 2588 wrote to memory of 2252 2588 eb5c3f8a581a2bbe778a586697a9b341.exe eb5c3f8a581a2bbe778a586697a9b341.exe PID 2588 wrote to memory of 2252 2588 eb5c3f8a581a2bbe778a586697a9b341.exe eb5c3f8a581a2bbe778a586697a9b341.exe PID 2588 wrote to memory of 2252 2588 eb5c3f8a581a2bbe778a586697a9b341.exe eb5c3f8a581a2bbe778a586697a9b341.exe PID 2588 wrote to memory of 2252 2588 eb5c3f8a581a2bbe778a586697a9b341.exe eb5c3f8a581a2bbe778a586697a9b341.exe PID 2588 wrote to memory of 2252 2588 eb5c3f8a581a2bbe778a586697a9b341.exe eb5c3f8a581a2bbe778a586697a9b341.exe PID 2588 wrote to memory of 2252 2588 eb5c3f8a581a2bbe778a586697a9b341.exe eb5c3f8a581a2bbe778a586697a9b341.exe -
outlook_office_path 1 IoCs
Processes:
eb5c3f8a581a2bbe778a586697a9b341.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 eb5c3f8a581a2bbe778a586697a9b341.exe -
outlook_win_path 1 IoCs
Processes:
eb5c3f8a581a2bbe778a586697a9b341.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 eb5c3f8a581a2bbe778a586697a9b341.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\eb5c3f8a581a2bbe778a586697a9b341.exe"C:\Users\Admin\AppData\Local\Temp\eb5c3f8a581a2bbe778a586697a9b341.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\eb5c3f8a581a2bbe778a586697a9b341.exe"C:\Users\Admin\AppData\Local\Temp\eb5c3f8a581a2bbe778a586697a9b341.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\eb5c3f8a581a2bbe778a586697a9b341.exe.logMD5
0c2899d7c6746f42d5bbe088c777f94c
SHA1622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1
SHA2565b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458
SHA512ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078
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memory/2252-127-0x0000000000400000-0x0000000000472000-memory.dmpFilesize
456KB
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memory/2252-138-0x0000000006CC0000-0x0000000006CC1000-memory.dmpFilesize
4KB
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memory/2252-135-0x0000000005020000-0x000000000551E000-memory.dmpFilesize
5.0MB
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memory/2252-134-0x0000000005090000-0x0000000005091000-memory.dmpFilesize
4KB
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memory/2252-128-0x000000000046DCFE-mapping.dmp
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memory/2588-122-0x00000000032B0000-0x0000000003342000-memory.dmpFilesize
584KB
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memory/2588-126-0x00000000092A0000-0x0000000009353000-memory.dmpFilesize
716KB
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memory/2588-125-0x0000000009060000-0x0000000009061000-memory.dmpFilesize
4KB
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memory/2588-124-0x0000000005BC0000-0x0000000005BD1000-memory.dmpFilesize
68KB
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memory/2588-123-0x00000000059E0000-0x00000000059E1000-memory.dmpFilesize
4KB
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memory/2588-118-0x0000000000F70000-0x0000000000F71000-memory.dmpFilesize
4KB
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memory/2588-121-0x00000000058F0000-0x00000000058F1000-memory.dmpFilesize
4KB
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memory/2588-120-0x0000000005F40000-0x0000000005F41000-memory.dmpFilesize
4KB