Analysis
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max time kernel
150s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20231127-en -
resource tags
arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system -
submitted
14/12/2023, 00:09
Behavioral task
behavioral1
Sample
64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629.exe
Resource
win10v2004-20231127-en
General
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Target
64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629.exe
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Size
1.6MB
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MD5
db7caaded0a72795a34470b0d50fadf3
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SHA1
a81b9870c0994ee3a07c34e5aa53b53bd910dcd1
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SHA256
64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629
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SHA512
300ce34b908f06969f2efa7305fd41c5b21029033a925be3e095bd72b736f80ca54e4d819372e7cd5a236c54dc3e8f7846c09ae6b5d34983df64646b569f8267
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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 64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629.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-1-5-21-2598572287-1024438387-935107970-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629.exe Key opened \REGISTRY\USER\S-1-5-21-2598572287-1024438387-935107970-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629.exe Key opened \REGISTRY\USER\S-1-5-21-2598572287-1024438387-935107970-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2598572287-1024438387-935107970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" 64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629.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 23 ipinfo.io 25 ipinfo.io -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\System32\GroupPolicy 64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini 64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol 64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI 64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629.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 2588 4492 WerFault.exe 85 -
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 64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629.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 436 schtasks.exe 1724 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4492 64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629.exe 4492 64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4492 wrote to memory of 436 4492 64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629.exe 86 PID 4492 wrote to memory of 436 4492 64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629.exe 86 PID 4492 wrote to memory of 436 4492 64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629.exe 86 PID 4492 wrote to memory of 1724 4492 64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629.exe 90 PID 4492 wrote to memory of 1724 4492 64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629.exe 90 PID 4492 wrote to memory of 1724 4492 64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629.exe 90 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2598572287-1024438387-935107970-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2598572287-1024438387-935107970-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629.exe"C:\Users\Admin\AppData\Local\Temp\64079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629.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:4492 -
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:436
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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:1724
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 16802⤵
- Program crash
PID:2588
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc1⤵PID:3848
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:2128
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4492 -ip 44921⤵PID:3584
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.6MB
MD5db7caaded0a72795a34470b0d50fadf3
SHA1a81b9870c0994ee3a07c34e5aa53b53bd910dcd1
SHA25664079f197ed2d44e9e1251b1333859fefe12845d748adfc07eb5af6da38fd629
SHA512300ce34b908f06969f2efa7305fd41c5b21029033a925be3e095bd72b736f80ca54e4d819372e7cd5a236c54dc3e8f7846c09ae6b5d34983df64646b569f8267
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Filesize
3KB
MD5479d509a566834a0ab23c7b26d4bb380
SHA115004d61b99e0380f2f1362c6272117c487548ef
SHA2565d9f48d3eb1cd15aa0e9d0dc6b5c69f87b0b64897b9244ebe9c4beff817bb0d8
SHA512a339eaf04ad282a62aca18225a308945964867da607cf575d0ab27fd6a43a5ab38e408c4bc92d6d1e7a5fe1584ca6d61d9d2ffdd2e778542d0a1c4ca1d85bb9b
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Filesize
92KB
MD5ce7f99b32cf0d8473697dfcf8fdcc1d7
SHA1001451a4f514f593a55bcf2c50a3a22a926a7231
SHA2568a57ebc2f09a2c28da6e9bfd41e48953d06c99dddc7103df08fefe90d446d350
SHA51220be27aec29b8666654a8ff2ec43738e2727073611fa085a26c672f36c04e42b0688b1c146b23c3d188a2f9a5483b9a057064ae7a293064caba2dbd55bf81767
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Filesize
116KB
MD5f70aa3fa04f0536280f872ad17973c3d
SHA150a7b889329a92de1b272d0ecf5fce87395d3123
SHA2568d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8
SHA51230675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84