Analysis
-
max time kernel
142s -
max time network
146s -
platform
windows10-1703_x64 -
resource
win10-20231129-en -
resource tags
arch:x64arch:x86image:win10-20231129-enlocale:en-usos:windows10-1703-x64system -
submitted
13/12/2023, 21:42
Behavioral task
behavioral1
Sample
355970c20d63a13ce00677c8b810d4283a7aa3dff0d472b4c7d3245c0f689f25.exe
Resource
win10-20231129-en
General
-
Target
355970c20d63a13ce00677c8b810d4283a7aa3dff0d472b4c7d3245c0f689f25.exe
-
Size
1.6MB
-
MD5
f2bbbb51d468305f7b087877b64d9c26
-
SHA1
110788c713cafb7ecb0187960e84d3aa3dbdc562
-
SHA256
355970c20d63a13ce00677c8b810d4283a7aa3dff0d472b4c7d3245c0f689f25
-
SHA512
753d89de5608520693d11c6ed51e6efb6edbdcf3a4ce2c0510694bbc5e9a4ab25fbfda348766f005b3f6a8ad68847378389511113682518710d8ef2010d05862
-
SSDEEP
49152:80ceOGgUYYEmluRKYoFh4kGWusbQnIyDi1E1uonTKi/OjCCNG:1XOGgUYC4RKXFhrusbaDkE1u
Malware Config
Signatures
-
Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\FANBooster131.lnk 355970c20d63a13ce00677c8b810d4283a7aa3dff0d472b4c7d3245c0f689f25.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.
-
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3171942101-2809460380-3727589934-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 355970c20d63a13ce00677c8b810d4283a7aa3dff0d472b4c7d3245c0f689f25.exe Key opened \REGISTRY\USER\S-1-5-21-3171942101-2809460380-3727589934-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 355970c20d63a13ce00677c8b810d4283a7aa3dff0d472b4c7d3245c0f689f25.exe Key opened \REGISTRY\USER\S-1-5-21-3171942101-2809460380-3727589934-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 355970c20d63a13ce00677c8b810d4283a7aa3dff0d472b4c7d3245c0f689f25.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3171942101-2809460380-3727589934-1000\Software\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" 355970c20d63a13ce00677c8b810d4283a7aa3dff0d472b4c7d3245c0f689f25.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
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 355970c20d63a13ce00677c8b810d4283a7aa3dff0d472b4c7d3245c0f689f25.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini 355970c20d63a13ce00677c8b810d4283a7aa3dff0d472b4c7d3245c0f689f25.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol 355970c20d63a13ce00677c8b810d4283a7aa3dff0d472b4c7d3245c0f689f25.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI 355970c20d63a13ce00677c8b810d4283a7aa3dff0d472b4c7d3245c0f689f25.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Program crash 1 IoCs
pid pid_target Process procid_target 1432 1296 WerFault.exe 73 -
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 355970c20d63a13ce00677c8b810d4283a7aa3dff0d472b4c7d3245c0f689f25.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 355970c20d63a13ce00677c8b810d4283a7aa3dff0d472b4c7d3245c0f689f25.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 4904 schtasks.exe 1408 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1296 355970c20d63a13ce00677c8b810d4283a7aa3dff0d472b4c7d3245c0f689f25.exe 1296 355970c20d63a13ce00677c8b810d4283a7aa3dff0d472b4c7d3245c0f689f25.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1296 wrote to memory of 4904 1296 355970c20d63a13ce00677c8b810d4283a7aa3dff0d472b4c7d3245c0f689f25.exe 74 PID 1296 wrote to memory of 4904 1296 355970c20d63a13ce00677c8b810d4283a7aa3dff0d472b4c7d3245c0f689f25.exe 74 PID 1296 wrote to memory of 4904 1296 355970c20d63a13ce00677c8b810d4283a7aa3dff0d472b4c7d3245c0f689f25.exe 74 PID 1296 wrote to memory of 1408 1296 355970c20d63a13ce00677c8b810d4283a7aa3dff0d472b4c7d3245c0f689f25.exe 78 PID 1296 wrote to memory of 1408 1296 355970c20d63a13ce00677c8b810d4283a7aa3dff0d472b4c7d3245c0f689f25.exe 78 PID 1296 wrote to memory of 1408 1296 355970c20d63a13ce00677c8b810d4283a7aa3dff0d472b4c7d3245c0f689f25.exe 78 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3171942101-2809460380-3727589934-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 355970c20d63a13ce00677c8b810d4283a7aa3dff0d472b4c7d3245c0f689f25.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3171942101-2809460380-3727589934-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 355970c20d63a13ce00677c8b810d4283a7aa3dff0d472b4c7d3245c0f689f25.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\355970c20d63a13ce00677c8b810d4283a7aa3dff0d472b4c7d3245c0f689f25.exe"C:\Users\Admin\AppData\Local\Temp\355970c20d63a13ce00677c8b810d4283a7aa3dff0d472b4c7d3245c0f689f25.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:1296 -
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:4904
-
-
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:1408
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1296 -s 16442⤵
- Program crash
PID:1432
-
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:4824
-
\??\c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s fhsvc1⤵PID:1932
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
1.6MB
MD5f2bbbb51d468305f7b087877b64d9c26
SHA1110788c713cafb7ecb0187960e84d3aa3dbdc562
SHA256355970c20d63a13ce00677c8b810d4283a7aa3dff0d472b4c7d3245c0f689f25
SHA512753d89de5608520693d11c6ed51e6efb6edbdcf3a4ce2c0510694bbc5e9a4ab25fbfda348766f005b3f6a8ad68847378389511113682518710d8ef2010d05862
-
Filesize
3KB
MD5721349c4b26d4e0eb361ecb91f9615b7
SHA1adc5ea657db2c6d9bd04b1552b5d6ba2fa38299a
SHA256766a74f75eb564c9e017034735e4a4e0f8a27e474de99706b8fb08059a5bdfbc
SHA512207187599d04496722c7ed9333c5c91f369382e7d05f2478ec052ca1d1c28128cbd8ea1e99b0c3f15225891fa71f03d9f67541461eda116e35a91768c1cfd747
-
Filesize
92KB
MD5d540e45d4e0edb6aab5ed14cc52f1fa5
SHA10c9279b204416dfa86ee22993bd3325b5bc762b1
SHA256ddd7cbb13ec9dca8859d1a0f54d3f326c0097a8d2809636d96d2e4d9cfa86153
SHA5123dc3b50b4948f522f4746a0ef63cdc40995dad3a3ac901b277a37296a33eee2977121f7aa529d9ef7f0cb878c6e15fac6c5570f1e5f73e73b5379633bd0caf9f