Analysis
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max time kernel
145s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231127-en -
resource tags
arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system -
submitted
13/12/2023, 21:45
Behavioral task
behavioral1
Sample
1d3b69c3e1b8f4d2cac648bf352c6cf52544708582d7e2f18cfbc807399905be.exe
Resource
win10v2004-20231127-en
General
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Target
1d3b69c3e1b8f4d2cac648bf352c6cf52544708582d7e2f18cfbc807399905be.exe
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Size
1.6MB
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MD5
bc769a9cb75cfc17e5a55237277e88ec
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SHA1
cba6ca1eafacea82086e418751d727266cf292d7
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SHA256
1d3b69c3e1b8f4d2cac648bf352c6cf52544708582d7e2f18cfbc807399905be
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SHA512
b4e7057be3781ed46dd28c00f5f93f7986aa47fd71beb616d1d365abe8a62c325e55e22dfa7583133742d0278ee68558e0ad4b46d6e28d03ddf0140e9e6f06e3
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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 1d3b69c3e1b8f4d2cac648bf352c6cf52544708582d7e2f18cfbc807399905be.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-1-5-21-2013768333-4045878716-2922883000-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 1d3b69c3e1b8f4d2cac648bf352c6cf52544708582d7e2f18cfbc807399905be.exe Key opened \REGISTRY\USER\S-1-5-21-2013768333-4045878716-2922883000-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 1d3b69c3e1b8f4d2cac648bf352c6cf52544708582d7e2f18cfbc807399905be.exe Key opened \REGISTRY\USER\S-1-5-21-2013768333-4045878716-2922883000-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 1d3b69c3e1b8f4d2cac648bf352c6cf52544708582d7e2f18cfbc807399905be.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2013768333-4045878716-2922883000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" 1d3b69c3e1b8f4d2cac648bf352c6cf52544708582d7e2f18cfbc807399905be.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 24 ipinfo.io -
Drops file in System32 directory 4 IoCs
description ioc Process File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol 1d3b69c3e1b8f4d2cac648bf352c6cf52544708582d7e2f18cfbc807399905be.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI 1d3b69c3e1b8f4d2cac648bf352c6cf52544708582d7e2f18cfbc807399905be.exe File opened for modification C:\Windows\System32\GroupPolicy 1d3b69c3e1b8f4d2cac648bf352c6cf52544708582d7e2f18cfbc807399905be.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini 1d3b69c3e1b8f4d2cac648bf352c6cf52544708582d7e2f18cfbc807399905be.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 4760 2084 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 1d3b69c3e1b8f4d2cac648bf352c6cf52544708582d7e2f18cfbc807399905be.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 1d3b69c3e1b8f4d2cac648bf352c6cf52544708582d7e2f18cfbc807399905be.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 3476 schtasks.exe 4884 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2084 1d3b69c3e1b8f4d2cac648bf352c6cf52544708582d7e2f18cfbc807399905be.exe 2084 1d3b69c3e1b8f4d2cac648bf352c6cf52544708582d7e2f18cfbc807399905be.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2084 wrote to memory of 3476 2084 1d3b69c3e1b8f4d2cac648bf352c6cf52544708582d7e2f18cfbc807399905be.exe 90 PID 2084 wrote to memory of 3476 2084 1d3b69c3e1b8f4d2cac648bf352c6cf52544708582d7e2f18cfbc807399905be.exe 90 PID 2084 wrote to memory of 3476 2084 1d3b69c3e1b8f4d2cac648bf352c6cf52544708582d7e2f18cfbc807399905be.exe 90 PID 2084 wrote to memory of 4884 2084 1d3b69c3e1b8f4d2cac648bf352c6cf52544708582d7e2f18cfbc807399905be.exe 93 PID 2084 wrote to memory of 4884 2084 1d3b69c3e1b8f4d2cac648bf352c6cf52544708582d7e2f18cfbc807399905be.exe 93 PID 2084 wrote to memory of 4884 2084 1d3b69c3e1b8f4d2cac648bf352c6cf52544708582d7e2f18cfbc807399905be.exe 93 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2013768333-4045878716-2922883000-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 1d3b69c3e1b8f4d2cac648bf352c6cf52544708582d7e2f18cfbc807399905be.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2013768333-4045878716-2922883000-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 1d3b69c3e1b8f4d2cac648bf352c6cf52544708582d7e2f18cfbc807399905be.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\1d3b69c3e1b8f4d2cac648bf352c6cf52544708582d7e2f18cfbc807399905be.exe"C:\Users\Admin\AppData\Local\Temp\1d3b69c3e1b8f4d2cac648bf352c6cf52544708582d7e2f18cfbc807399905be.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:2084 -
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:3476
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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:4884
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2084 -s 16722⤵
- Program crash
PID:4760
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:1616
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc1⤵PID:1220
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2084 -ip 20841⤵PID:5092
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.6MB
MD5bc769a9cb75cfc17e5a55237277e88ec
SHA1cba6ca1eafacea82086e418751d727266cf292d7
SHA2561d3b69c3e1b8f4d2cac648bf352c6cf52544708582d7e2f18cfbc807399905be
SHA512b4e7057be3781ed46dd28c00f5f93f7986aa47fd71beb616d1d365abe8a62c325e55e22dfa7583133742d0278ee68558e0ad4b46d6e28d03ddf0140e9e6f06e3
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Filesize
3KB
MD560a5c7d7885d03133983fa1f3fa55e99
SHA1ecffe1312a2ffe789e4d72e9063d2940935c595c
SHA256350b898032644b764269414c7d10d53d4d4e8a16d473586ed29077a08d9f8e30
SHA51252d5f46bbea1da7378ec2483f8babb1530ec827064da9d52d1e350afbe15a8e21357e86f796598e5261d6722aa8d50763b04a31ee91cb61d3a607faa58578e76
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Filesize
92KB
MD5250f6cee6a8be4a85cd0d78b8f9ac854
SHA148a5be711abe88c0efb7204f6c792e67a99d390a
SHA25621e090219937792f360789c94785cf969cf22fb9e2ae145dec419dc4beab1321
SHA5124685c2cbc34566879e5c494f1433996ce9541e048a87036876d0ec426a02a13af6ed606575306522def4dd19a3fcc34b95335f492b21960b28e8f12be82a35b7
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Filesize
116KB
MD5f70aa3fa04f0536280f872ad17973c3d
SHA150a7b889329a92de1b272d0ecf5fce87395d3123
SHA2568d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8
SHA51230675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84