Analysis
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max time kernel
81s -
max time network
127s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 01:32
Static task
static1
Behavioral task
behavioral1
Sample
45676576545_pdf.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
45676576545_pdf.exe
Resource
win10v2004-20220414-en
General
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Target
45676576545_pdf.exe
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Size
491KB
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MD5
01bc7d05b6e6507b7017abee3579738a
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SHA1
147377bb8597a119fc318059335ae0f96687f844
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SHA256
8883f73f1e34a42362cd116db607dd2cbf33616249a68783ec6a0455b72d8bcb
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SHA512
97d413bddf67399c988f0a963dbbae7284e9343ea3ceeb1d8a96eb5a937daf8b61898351e12f5e95a29cba60741d8f0275f4b2988ef2eba26ef4feca79608dcf
Malware Config
Extracted
Protocol: smtp- Host:
smtp.yandex.ru - Port:
587 - Username:
[email protected] - Password:
princehero1234
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 1 IoCs
Processes:
resource yara_rule behavioral1/memory/1344-57-0x0000000000400000-0x000000000045A000-memory.dmp family_agenttesla -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
InstallUtil.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.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 4 checkip.amazonaws.com -
Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
Processes:
45676576545_pdf.exedescription ioc process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 45676576545_pdf.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum 45676576545_pdf.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
45676576545_pdf.exedescription pid process target process PID 1700 set thread context of 1344 1700 45676576545_pdf.exe InstallUtil.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
InstallUtil.exepid process 1344 InstallUtil.exe 1344 InstallUtil.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
45676576545_pdf.exepid process 1700 45676576545_pdf.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
InstallUtil.exedescription pid process Token: SeDebugPrivilege 1344 InstallUtil.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
InstallUtil.exepid process 1344 InstallUtil.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
45676576545_pdf.exedescription pid process target process PID 1700 wrote to memory of 1344 1700 45676576545_pdf.exe InstallUtil.exe PID 1700 wrote to memory of 1344 1700 45676576545_pdf.exe InstallUtil.exe PID 1700 wrote to memory of 1344 1700 45676576545_pdf.exe InstallUtil.exe PID 1700 wrote to memory of 1344 1700 45676576545_pdf.exe InstallUtil.exe PID 1700 wrote to memory of 1344 1700 45676576545_pdf.exe InstallUtil.exe PID 1700 wrote to memory of 1344 1700 45676576545_pdf.exe InstallUtil.exe PID 1700 wrote to memory of 1344 1700 45676576545_pdf.exe InstallUtil.exe PID 1700 wrote to memory of 1344 1700 45676576545_pdf.exe InstallUtil.exe -
outlook_office_path 1 IoCs
Processes:
InstallUtil.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe -
outlook_win_path 1 IoCs
Processes:
InstallUtil.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\45676576545_pdf.exe"C:\Users\Admin\AppData\Local\Temp\45676576545_pdf.exe"1⤵
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1700 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"C:\Windows\\\\Microsoft.NET\\\\Framework\\\\v4.0.30319\\\\InstallUtil.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1344
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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memory/1344-56-0x000000000045501E-mapping.dmp
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memory/1344-57-0x0000000000400000-0x000000000045A000-memory.dmpFilesize
360KB
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memory/1344-59-0x0000000075F21000-0x0000000075F23000-memory.dmpFilesize
8KB
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memory/1344-60-0x00000000005F0000-0x00000000005FA000-memory.dmpFilesize
40KB
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memory/1344-61-0x00000000002A5000-0x00000000002B6000-memory.dmpFilesize
68KB
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memory/1700-54-0x0000000001060000-0x00000000010E0000-memory.dmpFilesize
512KB
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memory/1700-55-0x00000000005A0000-0x00000000005FE000-memory.dmpFilesize
376KB
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memory/1700-58-0x0000000000600000-0x0000000000603000-memory.dmpFilesize
12KB