Analysis
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max time kernel
145s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20231130-en -
resource tags
arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system -
submitted
13/12/2023, 23:39
Behavioral task
behavioral1
Sample
b80b3b02eff98ed43046ba29dc807b81e03aea420010388aff38e2d4c1c6d7a0.exe
Resource
win10v2004-20231130-en
General
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Target
b80b3b02eff98ed43046ba29dc807b81e03aea420010388aff38e2d4c1c6d7a0.exe
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Size
1.6MB
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MD5
e6da143d8d6021028c3c2c5911b1ab92
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SHA1
f32cd9d2d40b0faf66951d7425677bbc1ec70944
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SHA256
b80b3b02eff98ed43046ba29dc807b81e03aea420010388aff38e2d4c1c6d7a0
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SHA512
1f24d9d617e70241d4d42a8a4d2425f2a00ef6576d86995e5c541999fd0023d71e99b8bdc177caa3f6eebce48d4470ef8ca6dd4d42e2dddbbb29868e36a90d5f
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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 b80b3b02eff98ed43046ba29dc807b81e03aea420010388aff38e2d4c1c6d7a0.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-1-5-21-3936660601-1848837011-2142350499-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 b80b3b02eff98ed43046ba29dc807b81e03aea420010388aff38e2d4c1c6d7a0.exe Key opened \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 b80b3b02eff98ed43046ba29dc807b81e03aea420010388aff38e2d4c1c6d7a0.exe Key opened \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 b80b3b02eff98ed43046ba29dc807b81e03aea420010388aff38e2d4c1c6d7a0.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" b80b3b02eff98ed43046ba29dc807b81e03aea420010388aff38e2d4c1c6d7a0.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 26 ipinfo.io 25 ipinfo.io -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\System32\GroupPolicy b80b3b02eff98ed43046ba29dc807b81e03aea420010388aff38e2d4c1c6d7a0.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini b80b3b02eff98ed43046ba29dc807b81e03aea420010388aff38e2d4c1c6d7a0.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol b80b3b02eff98ed43046ba29dc807b81e03aea420010388aff38e2d4c1c6d7a0.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI b80b3b02eff98ed43046ba29dc807b81e03aea420010388aff38e2d4c1c6d7a0.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 5068 1904 WerFault.exe 58 -
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 b80b3b02eff98ed43046ba29dc807b81e03aea420010388aff38e2d4c1c6d7a0.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString b80b3b02eff98ed43046ba29dc807b81e03aea420010388aff38e2d4c1c6d7a0.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 3420 schtasks.exe 4652 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1904 b80b3b02eff98ed43046ba29dc807b81e03aea420010388aff38e2d4c1c6d7a0.exe 1904 b80b3b02eff98ed43046ba29dc807b81e03aea420010388aff38e2d4c1c6d7a0.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeManageVolumePrivilege 2612 svchost.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1904 wrote to memory of 4652 1904 b80b3b02eff98ed43046ba29dc807b81e03aea420010388aff38e2d4c1c6d7a0.exe 87 PID 1904 wrote to memory of 4652 1904 b80b3b02eff98ed43046ba29dc807b81e03aea420010388aff38e2d4c1c6d7a0.exe 87 PID 1904 wrote to memory of 4652 1904 b80b3b02eff98ed43046ba29dc807b81e03aea420010388aff38e2d4c1c6d7a0.exe 87 PID 1904 wrote to memory of 3420 1904 b80b3b02eff98ed43046ba29dc807b81e03aea420010388aff38e2d4c1c6d7a0.exe 91 PID 1904 wrote to memory of 3420 1904 b80b3b02eff98ed43046ba29dc807b81e03aea420010388aff38e2d4c1c6d7a0.exe 91 PID 1904 wrote to memory of 3420 1904 b80b3b02eff98ed43046ba29dc807b81e03aea420010388aff38e2d4c1c6d7a0.exe 91 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 b80b3b02eff98ed43046ba29dc807b81e03aea420010388aff38e2d4c1c6d7a0.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 b80b3b02eff98ed43046ba29dc807b81e03aea420010388aff38e2d4c1c6d7a0.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b80b3b02eff98ed43046ba29dc807b81e03aea420010388aff38e2d4c1c6d7a0.exe"C:\Users\Admin\AppData\Local\Temp\b80b3b02eff98ed43046ba29dc807b81e03aea420010388aff38e2d4c1c6d7a0.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:1904 -
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:4652
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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:3420
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1904 -s 16922⤵
- Program crash
PID:5068
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:1392
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc1⤵PID:4932
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1904 -ip 19041⤵PID:4980
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C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe1⤵PID:4496
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k UnistackSvcGroup1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2612
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.6MB
MD5e6da143d8d6021028c3c2c5911b1ab92
SHA1f32cd9d2d40b0faf66951d7425677bbc1ec70944
SHA256b80b3b02eff98ed43046ba29dc807b81e03aea420010388aff38e2d4c1c6d7a0
SHA5121f24d9d617e70241d4d42a8a4d2425f2a00ef6576d86995e5c541999fd0023d71e99b8bdc177caa3f6eebce48d4470ef8ca6dd4d42e2dddbbb29868e36a90d5f
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Filesize
16KB
MD57bcac1b0a574cb44b2862ae7a8dc056a
SHA1a72617a947f5b62da96032d580b642d2e32e846f
SHA2563259d0d644786df68b9e29a3cd22619c4a9c283227e4cc916fdc81941cb40c39
SHA512631c3a4fc6f3b136d65ae31d820f5d47813d1510d4161c6a1530890c565fb3e9f9e6fcce7e301bfba0dcf6f23952a517261064a38bd68b020af318653420e821
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Filesize
3KB
MD596ec5415c71c6b33bac42a059d5a7da9
SHA1015a726a49103cc7468d6289a657db39f123cf3c
SHA2564544ac2ad6d6101b0f5fc55df5ac322ec079190ce412f56f6cc3c81db844b3b6
SHA5127ea396936e18bc9bf91c34b174dacb7a061eba5833b764c1f2eedae1135a8f77531886791255d7119e906c60e616d61083c9bfdd6310c402710ff8c9017d923f
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Filesize
92KB
MD59ee081ca0d9c3cd479031e1ff265961b
SHA1a2bfa65a2ddcd529a134ea08efd6965bcd0e5665
SHA2562a260265cd76d10c19658a7db48e7f328aba6df399e28e2e73642d5904dd73b4
SHA5126b9f28e80628042205df78d5393ba53ff9866ee25d92500a806055333f0fe3a93cb1516754b617c42a342d2852cb4f2cd37c849dbfd19bedb71aef5e642c33e6
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Filesize
116KB
MD5f70aa3fa04f0536280f872ad17973c3d
SHA150a7b889329a92de1b272d0ecf5fce87395d3123
SHA2568d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8
SHA51230675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84