Analysis
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max time kernel
140s -
max time network
129s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
resource tags
arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system -
submitted
02-05-2024 06:18
Static task
static1
Behavioral task
behavioral1
Sample
MxELZ3saa9aQNufK.exe
Resource
win7-20240221-en
General
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Target
MxELZ3saa9aQNufK.exe
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Size
617KB
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MD5
035d33a4798c4baca26c4e1c29730004
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SHA1
105c51e37e962271334462f1bd440f8e4e3ad9ee
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SHA256
8d87d1e973d1ee16d747824541196d5df60298f4a8b0e24cf0ad684bb69b779c
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SHA512
f612ef1c177658827ed18ea2629dacff9188efbb413b4d883421deb76f625fbc44b23f2aefecd9527ff5c8f3e7513da3b9b5ed687f2914a3777679849917a583
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SSDEEP
12288:shPg0W3O7y3G369OUyYUf9Q83zlQRFtwi2YLqwzdkbRNSHxSrSlrTSW90FxG0ol:NOeW36FKv3+R3yb
Malware Config
Extracted
matiex
Protocol: smtp- Host:
srvc13.turhost.com - Port:
587 - Username:
[email protected] - Password:
italik2015
Signatures
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Matiex Main payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/220-16-0x0000000000400000-0x0000000000472000-memory.dmp family_matiex -
Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
Processes:
MxELZ3saa9aQNufK.exedescription ioc process Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions MxELZ3saa9aQNufK.exe -
Looks for VMWare Tools registry key 2 TTPs 1 IoCs
Processes:
MxELZ3saa9aQNufK.exedescription ioc process Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Tools MxELZ3saa9aQNufK.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
MxELZ3saa9aQNufK.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion MxELZ3saa9aQNufK.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion MxELZ3saa9aQNufK.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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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:
MxELZ3saa9aQNufK.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2818691465-3043947619-2475182763-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MxELZ3saa9aQNufK.exe Key opened \REGISTRY\USER\S-1-5-21-2818691465-3043947619-2475182763-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MxELZ3saa9aQNufK.exe Key opened \REGISTRY\USER\S-1-5-21-2818691465-3043947619-2475182763-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MxELZ3saa9aQNufK.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 64 freegeoip.app 65 freegeoip.app 49 checkip.dyndns.org -
Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
Processes:
MxELZ3saa9aQNufK.exedescription ioc process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 MxELZ3saa9aQNufK.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum MxELZ3saa9aQNufK.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
MxELZ3saa9aQNufK.exedescription pid process target process PID 1468 set thread context of 220 1468 MxELZ3saa9aQNufK.exe MxELZ3saa9aQNufK.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 2312 220 WerFault.exe MxELZ3saa9aQNufK.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
MxELZ3saa9aQNufK.exepid process 1468 MxELZ3saa9aQNufK.exe 1468 MxELZ3saa9aQNufK.exe 1468 MxELZ3saa9aQNufK.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
MxELZ3saa9aQNufK.exeMxELZ3saa9aQNufK.exedescription pid process Token: SeDebugPrivilege 1468 MxELZ3saa9aQNufK.exe Token: SeDebugPrivilege 220 MxELZ3saa9aQNufK.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
MxELZ3saa9aQNufK.exedescription pid process target process PID 1468 wrote to memory of 220 1468 MxELZ3saa9aQNufK.exe MxELZ3saa9aQNufK.exe PID 1468 wrote to memory of 220 1468 MxELZ3saa9aQNufK.exe MxELZ3saa9aQNufK.exe PID 1468 wrote to memory of 220 1468 MxELZ3saa9aQNufK.exe MxELZ3saa9aQNufK.exe PID 1468 wrote to memory of 220 1468 MxELZ3saa9aQNufK.exe MxELZ3saa9aQNufK.exe PID 1468 wrote to memory of 220 1468 MxELZ3saa9aQNufK.exe MxELZ3saa9aQNufK.exe PID 1468 wrote to memory of 220 1468 MxELZ3saa9aQNufK.exe MxELZ3saa9aQNufK.exe PID 1468 wrote to memory of 220 1468 MxELZ3saa9aQNufK.exe MxELZ3saa9aQNufK.exe PID 1468 wrote to memory of 220 1468 MxELZ3saa9aQNufK.exe MxELZ3saa9aQNufK.exe -
outlook_office_path 1 IoCs
Processes:
MxELZ3saa9aQNufK.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2818691465-3043947619-2475182763-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MxELZ3saa9aQNufK.exe -
outlook_win_path 1 IoCs
Processes:
MxELZ3saa9aQNufK.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2818691465-3043947619-2475182763-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MxELZ3saa9aQNufK.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\MxELZ3saa9aQNufK.exe"C:\Users\Admin\AppData\Local\Temp\MxELZ3saa9aQNufK.exe"1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\MxELZ3saa9aQNufK.exe"C:\Users\Admin\AppData\Local\Temp\MxELZ3saa9aQNufK.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 220 -s 20203⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 220 -ip 2201⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\MxELZ3saa9aQNufK.exe.logFilesize
1KB
MD539c80e11c25478a5d6863f9ec7c44834
SHA1f29c08656792b274ef6da35b0071fa93e45ca940
SHA2567a0cb24b4ab253688e19c863fa1d2da3c640228fa53e7aacc78b22fb7a6c4c99
SHA5128095d6f3d95d783d37aee06e7d2d3b15a80e5898ee9029c65c8ba609ca19ba10719c0f0e7206a7a1e1b739339921c7268f5e9f473869d5a1f0c4d8fb82fea18a
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memory/220-16-0x0000000000400000-0x0000000000472000-memory.dmpFilesize
456KB
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memory/220-22-0x0000000075370000-0x0000000075B20000-memory.dmpFilesize
7.7MB
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memory/220-21-0x0000000075370000-0x0000000075B20000-memory.dmpFilesize
7.7MB
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memory/220-20-0x0000000075370000-0x0000000075B20000-memory.dmpFilesize
7.7MB
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memory/1468-10-0x000000007537E000-0x000000007537F000-memory.dmpFilesize
4KB
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memory/1468-14-0x0000000006BF0000-0x0000000006C66000-memory.dmpFilesize
472KB
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memory/1468-7-0x0000000005A50000-0x0000000005A5A000-memory.dmpFilesize
40KB
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memory/1468-8-0x0000000005C40000-0x0000000005C96000-memory.dmpFilesize
344KB
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memory/1468-9-0x0000000005BF0000-0x0000000005C08000-memory.dmpFilesize
96KB
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memory/1468-0-0x000000007537E000-0x000000007537F000-memory.dmpFilesize
4KB
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memory/1468-11-0x0000000075370000-0x0000000075B20000-memory.dmpFilesize
7.7MB
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memory/1468-12-0x0000000006B80000-0x0000000006BE8000-memory.dmpFilesize
416KB
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memory/1468-13-0x00000000060E0000-0x00000000060E6000-memory.dmpFilesize
24KB
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memory/1468-6-0x0000000075370000-0x0000000075B20000-memory.dmpFilesize
7.7MB
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memory/1468-15-0x0000000006CE0000-0x0000000006D46000-memory.dmpFilesize
408KB
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memory/1468-5-0x0000000005B40000-0x0000000005BD2000-memory.dmpFilesize
584KB
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memory/1468-4-0x00000000060F0000-0x0000000006694000-memory.dmpFilesize
5.6MB
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memory/1468-19-0x0000000075370000-0x0000000075B20000-memory.dmpFilesize
7.7MB
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memory/1468-3-0x0000000005AA0000-0x0000000005B3C000-memory.dmpFilesize
624KB
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memory/1468-2-0x0000000005640000-0x00000000056BC000-memory.dmpFilesize
496KB
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memory/1468-1-0x0000000000C40000-0x0000000000CE2000-memory.dmpFilesize
648KB