Analysis
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max time kernel
119s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system -
submitted
03-10-2023 16:51
Static task
static1
Behavioral task
behavioral1
Sample
Purchase Order.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
Purchase Order.exe
Resource
win10v2004-20230915-en
General
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Target
Purchase Order.exe
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Size
502KB
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MD5
5f96ca1cb69ffa48bc90c22e83a33eb7
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SHA1
87115d2916f51e0f4bc11725a5d11c86e3064c02
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SHA256
e27e63e6096a727c94170fc3459661fe3fda9d396d5451ae253015880b37c9d0
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SHA512
8c437cd96c1a79013a0100ece43d5e6448e987253488e1572b88b88a5bdf615d9de85ff5726e340ef22353f5c6dad273eec353589c13295a6849d91ee7bbe6e5
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SSDEEP
12288:bFBF5Z/NKh0xapZn0JKZvoa1T0AUh7LhNWIr:RnsJXm0w+XUh3W
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
bengalleather.com - Port:
587 - Username:
[email protected] - Password:
kz@m@n04 - Email To:
[email protected]
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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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-1-5-21-3513876443-2771975297-1923446376-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe Key opened \REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe Key opened \REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe -
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 api.ipify.org 5 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2944 set thread context of 2620 2944 Purchase Order.exe 30 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 536 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 2944 Purchase Order.exe 2620 Purchase Order.exe 2620 Purchase Order.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2944 Purchase Order.exe Token: SeDebugPrivilege 2620 Purchase Order.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 2944 wrote to memory of 536 2944 Purchase Order.exe 28 PID 2944 wrote to memory of 536 2944 Purchase Order.exe 28 PID 2944 wrote to memory of 536 2944 Purchase Order.exe 28 PID 2944 wrote to memory of 536 2944 Purchase Order.exe 28 PID 2944 wrote to memory of 2620 2944 Purchase Order.exe 30 PID 2944 wrote to memory of 2620 2944 Purchase Order.exe 30 PID 2944 wrote to memory of 2620 2944 Purchase Order.exe 30 PID 2944 wrote to memory of 2620 2944 Purchase Order.exe 30 PID 2944 wrote to memory of 2620 2944 Purchase Order.exe 30 PID 2944 wrote to memory of 2620 2944 Purchase Order.exe 30 PID 2944 wrote to memory of 2620 2944 Purchase Order.exe 30 PID 2944 wrote to memory of 2620 2944 Purchase Order.exe 30 PID 2944 wrote to memory of 2620 2944 Purchase Order.exe 30 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2944 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zJOkjOzHfLUWO" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB04C.tmp"2⤵
- Creates scheduled task(s)
PID:536
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C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2620
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD54b0700a835e5cdcf99fe743811fd60a7
SHA1ab9317c334505a1abf7a28b8e926a2a4c7c94aac
SHA2565d48422981b9c3cae50296ed86a3899e5621e6b7d97a381a7fcdc2f5b2b933e2
SHA512e8021a4487c4eb4a8a76ee272c38b97c6013c01439881810190bb72c1c481a9672a5f4988a4bfbedcaae9c1e5c274a7d7ddc7236697802d676f73ca5b6530a2e