Analysis
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max time kernel
147s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231130-en -
resource tags
arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system -
submitted
14/12/2023, 00:10
Behavioral task
behavioral1
Sample
9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0.exe
Resource
win10v2004-20231130-en
General
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Target
9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0.exe
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Size
1.6MB
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MD5
ed9548572a37b6fce0099e79dae82d83
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SHA1
f561a3def7cd1c56e0e705afa6d1abbee5c2b807
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SHA256
9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0
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SHA512
a4baffe90d97222cf86fcae1b5df1e2456c8999029f689ea824bbaf948396d969ce69d40fd9f1ac96086c112c86257acc58d4329f2c8b20074d1186e91f5791b
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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 9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0.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-1-5-21-596315103-1488671723-776734015-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0.exe Key opened \REGISTRY\USER\S-1-5-21-596315103-1488671723-776734015-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0.exe Key opened \REGISTRY\USER\S-1-5-21-596315103-1488671723-776734015-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-596315103-1488671723-776734015-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" 9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0.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 21 ipinfo.io 24 ipinfo.io -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\System32\GroupPolicy 9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini 9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol 9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI 9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0.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 924 4844 WerFault.exe 56 -
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 9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0.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 1860 schtasks.exe 656 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4844 9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0.exe 4844 9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeManageVolumePrivilege 4576 svchost.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4844 wrote to memory of 656 4844 9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0.exe 88 PID 4844 wrote to memory of 656 4844 9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0.exe 88 PID 4844 wrote to memory of 656 4844 9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0.exe 88 PID 4844 wrote to memory of 1860 4844 9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0.exe 92 PID 4844 wrote to memory of 1860 4844 9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0.exe 92 PID 4844 wrote to memory of 1860 4844 9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0.exe 92 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-596315103-1488671723-776734015-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-596315103-1488671723-776734015-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0.exe"C:\Users\Admin\AppData\Local\Temp\9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0.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:4844 -
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:656
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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:1860
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4844 -s 17122⤵
- Program crash
PID:924
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:4500
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc1⤵PID:900
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4844 -ip 48441⤵PID:3348
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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:5016
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k UnistackSvcGroup1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4576
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.6MB
MD5ed9548572a37b6fce0099e79dae82d83
SHA1f561a3def7cd1c56e0e705afa6d1abbee5c2b807
SHA2569c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0
SHA512a4baffe90d97222cf86fcae1b5df1e2456c8999029f689ea824bbaf948396d969ce69d40fd9f1ac96086c112c86257acc58d4329f2c8b20074d1186e91f5791b
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Filesize
3KB
MD5b407522642223795e4a3414a304885e3
SHA15610c384647723e168fe95fffa996288e331d8cc
SHA256b7c0c6ec641a6e99ca9278567ce20c9a8121f010be4276a64683628f7b033835
SHA51290c196a9ca39a77725a07b67b43395c19f3d0792a77350d06807f65cac40b8b5fdfc84ad9e1b85f406cbb05fae3d853660b818c51b30e4c8dc82857c890ae09f
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Filesize
92KB
MD55bca7f96843d97e2c39afbb8b5f9865b
SHA1e64666a5d705a768e2351621577a386400111251
SHA256e25c46923271e687a972edfcf511d7685c24ce2e509a5b10d0ba4cd6f2bfeab2
SHA51240771d495b407c0ede8ad3e5d8e77cf588a607426f0597f0c10a81ec7b2614f28a66a1c5ff36bf8bf6905bdc6b537d8cc5a749725adfc57f72ec3c9ee17f76d3
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Filesize
116KB
MD5f70aa3fa04f0536280f872ad17973c3d
SHA150a7b889329a92de1b272d0ecf5fce87395d3123
SHA2568d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8
SHA51230675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84