Analysis
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max time kernel
143s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
04/01/2024, 16:23
Static task
static1
Behavioral task
behavioral1
Sample
41572cb943bcaed0ddcbefd88e77b860.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
41572cb943bcaed0ddcbefd88e77b860.exe
Resource
win10v2004-20231215-en
General
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Target
41572cb943bcaed0ddcbefd88e77b860.exe
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Size
598KB
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MD5
41572cb943bcaed0ddcbefd88e77b860
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SHA1
a78e19ac7fde3fddc42a816717351f3d9010b90f
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SHA256
398970d0c4754fa90d6f04c15fbf6d0bb88fb05d63dc4d7b919255ed774e3899
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SHA512
bd8700b44f6c2a5cfa09d0ae16e08482691c7f4b4b7d4f0c96e479da2cab5c7a8ff705a07cf9f3a7f614f97bd502e59ad6889c6e7fc103ad05c4ae990bd0330b
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SSDEEP
12288:2FdMZS02iNv4sUZYX+0jWMLVKvEgRFKklt+YLft3:A0S01usRXLVKvpRFK6t+KF
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.spamora.net - Port:
587 - Username:
[email protected] - Password:
Emotion22
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla payload 5 IoCs
resource yara_rule behavioral1/memory/2656-17-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/2656-15-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/2656-21-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/2656-26-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/2656-23-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla -
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 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
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 41572cb943bcaed0ddcbefd88e77b860.exe Key opened \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 41572cb943bcaed0ddcbefd88e77b860.exe Key opened \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 41572cb943bcaed0ddcbefd88e77b860.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Windows\CurrentVersion\Run\MLdAu = "C:\\Users\\Admin\\AppData\\Roaming\\MLdAu\\MLdAu.exe" 41572cb943bcaed0ddcbefd88e77b860.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1752 set thread context of 2656 1752 41572cb943bcaed0ddcbefd88e77b860.exe 31 -
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.
pid Process 2728 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1752 41572cb943bcaed0ddcbefd88e77b860.exe 1752 41572cb943bcaed0ddcbefd88e77b860.exe 2656 41572cb943bcaed0ddcbefd88e77b860.exe 2656 41572cb943bcaed0ddcbefd88e77b860.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1752 41572cb943bcaed0ddcbefd88e77b860.exe Token: SeDebugPrivilege 2656 41572cb943bcaed0ddcbefd88e77b860.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2656 41572cb943bcaed0ddcbefd88e77b860.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 1752 wrote to memory of 2728 1752 41572cb943bcaed0ddcbefd88e77b860.exe 28 PID 1752 wrote to memory of 2728 1752 41572cb943bcaed0ddcbefd88e77b860.exe 28 PID 1752 wrote to memory of 2728 1752 41572cb943bcaed0ddcbefd88e77b860.exe 28 PID 1752 wrote to memory of 2728 1752 41572cb943bcaed0ddcbefd88e77b860.exe 28 PID 1752 wrote to memory of 2896 1752 41572cb943bcaed0ddcbefd88e77b860.exe 30 PID 1752 wrote to memory of 2896 1752 41572cb943bcaed0ddcbefd88e77b860.exe 30 PID 1752 wrote to memory of 2896 1752 41572cb943bcaed0ddcbefd88e77b860.exe 30 PID 1752 wrote to memory of 2896 1752 41572cb943bcaed0ddcbefd88e77b860.exe 30 PID 1752 wrote to memory of 2656 1752 41572cb943bcaed0ddcbefd88e77b860.exe 31 PID 1752 wrote to memory of 2656 1752 41572cb943bcaed0ddcbefd88e77b860.exe 31 PID 1752 wrote to memory of 2656 1752 41572cb943bcaed0ddcbefd88e77b860.exe 31 PID 1752 wrote to memory of 2656 1752 41572cb943bcaed0ddcbefd88e77b860.exe 31 PID 1752 wrote to memory of 2656 1752 41572cb943bcaed0ddcbefd88e77b860.exe 31 PID 1752 wrote to memory of 2656 1752 41572cb943bcaed0ddcbefd88e77b860.exe 31 PID 1752 wrote to memory of 2656 1752 41572cb943bcaed0ddcbefd88e77b860.exe 31 PID 1752 wrote to memory of 2656 1752 41572cb943bcaed0ddcbefd88e77b860.exe 31 PID 1752 wrote to memory of 2656 1752 41572cb943bcaed0ddcbefd88e77b860.exe 31 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 41572cb943bcaed0ddcbefd88e77b860.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 41572cb943bcaed0ddcbefd88e77b860.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\41572cb943bcaed0ddcbefd88e77b860.exe"C:\Users\Admin\AppData\Local\Temp\41572cb943bcaed0ddcbefd88e77b860.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1752 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LWzgRtIdnvQN" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8EE7.tmp"2⤵
- Creates scheduled task(s)
PID:2728
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C:\Users\Admin\AppData\Local\Temp\41572cb943bcaed0ddcbefd88e77b860.exe"{path}"2⤵PID:2896
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C:\Users\Admin\AppData\Local\Temp\41572cb943bcaed0ddcbefd88e77b860.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:2656
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD58adf7df41362a11dd17aa9d30020ce7e
SHA1d0fa42fabc6fd4305a2cd8160e093e0c09fc3aa3
SHA256067f26d32c07364a28c949d9f9b536021933ff360da06ec6bafd8815d91624d9
SHA51286e4f42c2cfa86ecff29201bb06124ea88c9f6983326c690cc9ff8188403d1979048cde577ca43778c2ef705973c7ef7dd59ccff06efdf530f0dee19cc34ec0d