Analysis
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max time kernel
126s -
max time network
131s -
platform
windows10-1703_x64 -
resource
win10-20231020-en -
resource tags
arch:x64arch:x86image:win10-20231020-enlocale:en-usos:windows10-1703-x64system -
submitted
13/12/2023, 23:22
Behavioral task
behavioral1
Sample
6a8d0215a7bf8a9209a99043b37c4aebf297783bda9afe4fd6f9cf21fc5796a3.exe
Resource
win10-20231020-en
General
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Target
6a8d0215a7bf8a9209a99043b37c4aebf297783bda9afe4fd6f9cf21fc5796a3.exe
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Size
1.6MB
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MD5
7906e4a5942864c963dcff50b305b794
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SHA1
6111f7bed3b998cbacc86e0137e8ba06110073ba
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SHA256
6a8d0215a7bf8a9209a99043b37c4aebf297783bda9afe4fd6f9cf21fc5796a3
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SHA512
4def7613aee78caccbba9947a98253f1b04a87a1ad22eab7332eb90d9795f11a6ae34c60105b7cceb10573bbbfede9eb9bfc079c5f584b0caacedbc8dea33ecd
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SSDEEP
49152:80ceOGgUYYEmluRKYoFh4kGWusbQnIyDi1E1uonTKi/OjCCNG:1XOGgUYC4RKXFhrusbaDkE1u
Malware Config
Signatures
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Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\FANBooster131.lnk 6a8d0215a7bf8a9209a99043b37c4aebf297783bda9afe4fd6f9cf21fc5796a3.exe -
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-1-5-21-459651055-4136032345-1270294931-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 6a8d0215a7bf8a9209a99043b37c4aebf297783bda9afe4fd6f9cf21fc5796a3.exe Key opened \REGISTRY\USER\S-1-5-21-459651055-4136032345-1270294931-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 6a8d0215a7bf8a9209a99043b37c4aebf297783bda9afe4fd6f9cf21fc5796a3.exe Key opened \REGISTRY\USER\S-1-5-21-459651055-4136032345-1270294931-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 6a8d0215a7bf8a9209a99043b37c4aebf297783bda9afe4fd6f9cf21fc5796a3.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-459651055-4136032345-1270294931-1000\Software\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" 6a8d0215a7bf8a9209a99043b37c4aebf297783bda9afe4fd6f9cf21fc5796a3.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 4 ipinfo.io 5 ipinfo.io -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\System32\GroupPolicy 6a8d0215a7bf8a9209a99043b37c4aebf297783bda9afe4fd6f9cf21fc5796a3.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini 6a8d0215a7bf8a9209a99043b37c4aebf297783bda9afe4fd6f9cf21fc5796a3.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol 6a8d0215a7bf8a9209a99043b37c4aebf297783bda9afe4fd6f9cf21fc5796a3.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI 6a8d0215a7bf8a9209a99043b37c4aebf297783bda9afe4fd6f9cf21fc5796a3.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 4828 4564 WerFault.exe 70 -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 6a8d0215a7bf8a9209a99043b37c4aebf297783bda9afe4fd6f9cf21fc5796a3.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 6a8d0215a7bf8a9209a99043b37c4aebf297783bda9afe4fd6f9cf21fc5796a3.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4900 schtasks.exe 2088 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4564 6a8d0215a7bf8a9209a99043b37c4aebf297783bda9afe4fd6f9cf21fc5796a3.exe 4564 6a8d0215a7bf8a9209a99043b37c4aebf297783bda9afe4fd6f9cf21fc5796a3.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4564 wrote to memory of 4900 4564 6a8d0215a7bf8a9209a99043b37c4aebf297783bda9afe4fd6f9cf21fc5796a3.exe 71 PID 4564 wrote to memory of 4900 4564 6a8d0215a7bf8a9209a99043b37c4aebf297783bda9afe4fd6f9cf21fc5796a3.exe 71 PID 4564 wrote to memory of 4900 4564 6a8d0215a7bf8a9209a99043b37c4aebf297783bda9afe4fd6f9cf21fc5796a3.exe 71 PID 4564 wrote to memory of 2088 4564 6a8d0215a7bf8a9209a99043b37c4aebf297783bda9afe4fd6f9cf21fc5796a3.exe 75 PID 4564 wrote to memory of 2088 4564 6a8d0215a7bf8a9209a99043b37c4aebf297783bda9afe4fd6f9cf21fc5796a3.exe 75 PID 4564 wrote to memory of 2088 4564 6a8d0215a7bf8a9209a99043b37c4aebf297783bda9afe4fd6f9cf21fc5796a3.exe 75 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-459651055-4136032345-1270294931-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 6a8d0215a7bf8a9209a99043b37c4aebf297783bda9afe4fd6f9cf21fc5796a3.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-459651055-4136032345-1270294931-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 6a8d0215a7bf8a9209a99043b37c4aebf297783bda9afe4fd6f9cf21fc5796a3.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\6a8d0215a7bf8a9209a99043b37c4aebf297783bda9afe4fd6f9cf21fc5796a3.exe"C:\Users\Admin\AppData\Local\Temp\6a8d0215a7bf8a9209a99043b37c4aebf297783bda9afe4fd6f9cf21fc5796a3.exe"1⤵
- Drops startup file
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Drops file in System32 directory
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:4564 -
C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 HR" /sc HOURLY /rl HIGHEST2⤵
- Creates scheduled task(s)
PID:4900
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 LG" /sc ONLOGON /rl HIGHEST2⤵
- Creates scheduled task(s)
PID:2088
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4564 -s 15642⤵
- Program crash
PID:4828
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:4816
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\??\c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s fhsvc1⤵PID:2248
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.3MB
MD5ba26ad99a055ce8e3cc59a5b277959b5
SHA1dd92623e722287761d2b5a5d09f915e770d19611
SHA256e1c08a2fb6a550bcfe121255b419836ac85b068691ffb865e63e1e8257903f3b
SHA512dde7d0bd6bf4af44cc68b872ba8ec6dcc6aca6c263b36a3869cd221f42f80560074c843cb7ea390bcf31815d2f41eb9be5d128e149d3d7e8b4f7dbbc6e55a480
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Filesize
3KB
MD5ab12dd6915a6f92d541a5ffc8b9c4fb8
SHA1f2be770b8686bcfa649243309eb2ec2d7fe65d15
SHA25680d60b5982d837cae18a849e4ba4b99145d9c21dc6eb0080a01200b60d33fe14
SHA51245be32cbda8ceec2194627e4e2083fbf9b5645a1523bc45c92e8da0ff69bdcecfbf94c77251b3f8c1464efc5ddb8e6cab187d0d23fc42482e62d64964dcf10ef
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Filesize
92KB
MD55be96e311859379e2bf53d4ca9b3292c
SHA17da91b40529fcba8bc68442aa06ea9491fdbb824
SHA256c46a65bf3fc90038a2d876d103dbe658259594e90fddc223951cddb9ac9af99c
SHA512a39d3c2c45deb0509ffeab971b096a90748f0fa6e3f1bacea6f8c9dfcae985ad1b45d5d48306ce06d065e92063e8156fea44c0a87e9ca99bae6838fd53edb057