Analysis
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max time kernel
118s -
max time network
126s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
17-05-2024 14:41
Static task
static1
Behavioral task
behavioral1
Sample
LYUoz7EXa2f53y3.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
LYUoz7EXa2f53y3.exe
Resource
win10v2004-20240426-en
General
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Target
LYUoz7EXa2f53y3.exe
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Size
864KB
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MD5
1274d72e82a4a389f9bd063c4b025bc0
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SHA1
42bcb1cbe89361be9d538dffd2b71429ad7070cf
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SHA256
641fe8dbcfc7cf68d594eda921ce75269e4d3bb74a02b7116facb091020f0806
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SHA512
9699256cd3b4bea5a0230536639a00ae3ee41b6ff3cea851a31bf49d3a33af30a85a21921edd58321d85d3f19fce2b6a9eb95e2231f24da5b0df2e2d4d6ee0cc
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SSDEEP
24576:plv9Wc7NBpneCf6vw3j+7Tx3B4mNJA9fyRvZsAALCvoR:plv9Wc7/peCf6vkjkTn4ky9VLmC
Malware Config
Extracted
Protocol: smtp- Host:
mail.mytravelexplorer.com - Port:
587 - Username:
[email protected] - Password:
43K+H2..0_g^
Signatures
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MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
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MassLogger Main payload 5 IoCs
Processes:
resource yara_rule behavioral1/memory/2908-18-0x0000000000400000-0x00000000004A8000-memory.dmp family_masslogger behavioral1/memory/2908-21-0x0000000000400000-0x00000000004A8000-memory.dmp family_masslogger behavioral1/memory/2908-16-0x0000000000400000-0x00000000004A8000-memory.dmp family_masslogger behavioral1/memory/2908-13-0x0000000000400000-0x00000000004A8000-memory.dmp family_masslogger behavioral1/memory/2908-12-0x0000000000400000-0x00000000004A8000-memory.dmp family_masslogger -
ReZer0 packer 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
Processes:
resource yara_rule behavioral1/memory/2032-5-0x0000000005870000-0x000000000591E000-memory.dmp rezer0 -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
LYUoz7EXa2f53y3.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Control Panel\International\Geo\Nation LYUoz7EXa2f53y3.exe -
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 15 IoCs
Processes:
LYUoz7EXa2f53y3.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 LYUoz7EXa2f53y3.exe Key opened \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 LYUoz7EXa2f53y3.exe Key created \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 LYUoz7EXa2f53y3.exe Key created \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook LYUoz7EXa2f53y3.exe Key queried \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook LYUoz7EXa2f53y3.exe Key queried \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook LYUoz7EXa2f53y3.exe Key queried \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook LYUoz7EXa2f53y3.exe Key queried \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 LYUoz7EXa2f53y3.exe Key queried \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 LYUoz7EXa2f53y3.exe Key opened \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 LYUoz7EXa2f53y3.exe Key created \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 LYUoz7EXa2f53y3.exe Key created \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook LYUoz7EXa2f53y3.exe Key created \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook LYUoz7EXa2f53y3.exe Key created \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 LYUoz7EXa2f53y3.exe Key queried \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 LYUoz7EXa2f53y3.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 2 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
LYUoz7EXa2f53y3.exedescription pid process target process PID 2032 set thread context of 2908 2032 LYUoz7EXa2f53y3.exe LYUoz7EXa2f53y3.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
LYUoz7EXa2f53y3.exepid process 2908 LYUoz7EXa2f53y3.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
LYUoz7EXa2f53y3.exepid process 2908 LYUoz7EXa2f53y3.exe 2908 LYUoz7EXa2f53y3.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
LYUoz7EXa2f53y3.exedescription pid process Token: SeDebugPrivilege 2908 LYUoz7EXa2f53y3.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
LYUoz7EXa2f53y3.exepid process 2908 LYUoz7EXa2f53y3.exe -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
LYUoz7EXa2f53y3.exedescription pid process target process PID 2032 wrote to memory of 2100 2032 LYUoz7EXa2f53y3.exe schtasks.exe PID 2032 wrote to memory of 2100 2032 LYUoz7EXa2f53y3.exe schtasks.exe PID 2032 wrote to memory of 2100 2032 LYUoz7EXa2f53y3.exe schtasks.exe PID 2032 wrote to memory of 2100 2032 LYUoz7EXa2f53y3.exe schtasks.exe PID 2032 wrote to memory of 2908 2032 LYUoz7EXa2f53y3.exe LYUoz7EXa2f53y3.exe PID 2032 wrote to memory of 2908 2032 LYUoz7EXa2f53y3.exe LYUoz7EXa2f53y3.exe PID 2032 wrote to memory of 2908 2032 LYUoz7EXa2f53y3.exe LYUoz7EXa2f53y3.exe PID 2032 wrote to memory of 2908 2032 LYUoz7EXa2f53y3.exe LYUoz7EXa2f53y3.exe PID 2032 wrote to memory of 2908 2032 LYUoz7EXa2f53y3.exe LYUoz7EXa2f53y3.exe PID 2032 wrote to memory of 2908 2032 LYUoz7EXa2f53y3.exe LYUoz7EXa2f53y3.exe PID 2032 wrote to memory of 2908 2032 LYUoz7EXa2f53y3.exe LYUoz7EXa2f53y3.exe PID 2032 wrote to memory of 2908 2032 LYUoz7EXa2f53y3.exe LYUoz7EXa2f53y3.exe PID 2032 wrote to memory of 2908 2032 LYUoz7EXa2f53y3.exe LYUoz7EXa2f53y3.exe -
outlook_office_path 1 IoCs
Processes:
LYUoz7EXa2f53y3.exedescription ioc process Key queried \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 LYUoz7EXa2f53y3.exe -
outlook_win_path 1 IoCs
Processes:
LYUoz7EXa2f53y3.exedescription ioc process Key queried \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 LYUoz7EXa2f53y3.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\LYUoz7EXa2f53y3.exe"C:\Users\Admin\AppData\Local\Temp\LYUoz7EXa2f53y3.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2032 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DiExUVCDQV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4CAA.tmp"2⤵
- Creates scheduled task(s)
PID:2100 -
C:\Users\Admin\AppData\Local\Temp\LYUoz7EXa2f53y3.exe"{path}"2⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:2908
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp4CAA.tmpFilesize
1KB
MD50a23950b15603f656ce2b87fc7e18538
SHA13103a8c3f22a1976a61b53a2b3fcba3c44f73577
SHA2563f05f922f9e9ef66a346c2e7ed28b7d672d79a2793f7abfd9b73591510e498af
SHA512fa56e2a0e685b6e0b7af66a5f00f338f9bf7b1d65d007f132c8777bdba3750b9a8c78a92260d2ba3f0de4f37b5945dc6c2094015cba97b1f9b6125cea3a73add
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memory/2032-23-0x0000000074730000-0x0000000074E1E000-memory.dmpFilesize
6.9MB
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memory/2032-1-0x0000000001260000-0x000000000133E000-memory.dmpFilesize
888KB
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memory/2032-2-0x0000000000200000-0x0000000000212000-memory.dmpFilesize
72KB
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memory/2032-3-0x000000007473E000-0x000000007473F000-memory.dmpFilesize
4KB
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memory/2032-4-0x0000000074730000-0x0000000074E1E000-memory.dmpFilesize
6.9MB
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memory/2032-5-0x0000000005870000-0x000000000591E000-memory.dmpFilesize
696KB
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memory/2032-6-0x0000000074730000-0x0000000074E1E000-memory.dmpFilesize
6.9MB
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memory/2032-0-0x000000007473E000-0x000000007473F000-memory.dmpFilesize
4KB
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memory/2908-10-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
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memory/2908-21-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
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memory/2908-16-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
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memory/2908-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmpFilesize
4KB
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memory/2908-13-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
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memory/2908-12-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
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memory/2908-11-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
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memory/2908-22-0x00000000006B0000-0x00000000006F4000-memory.dmpFilesize
272KB
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memory/2908-18-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
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memory/2908-41-0x0000000000E80000-0x0000000000E94000-memory.dmpFilesize
80KB