Analysis
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max time kernel
129s -
max time network
123s -
platform
windows10_x64 -
resource
win10-en-20211014 -
submitted
17-10-2021 11:13
Static task
static1
Behavioral task
behavioral1
Sample
Purchase Order.exe
Resource
win7-en-20210920
Behavioral task
behavioral2
Sample
Purchase Order.exe
Resource
win10-en-20211014
General
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Target
Purchase Order.exe
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Size
735KB
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MD5
f8c04a79425fbd0bde8ee6dd132d655b
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SHA1
b10826eb64f5d2469df8f776df34405cee0d1d05
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SHA256
6459b80dbdfbf19a21456659f618c0e22693b4d2389e5cfbba864e5d2b85eb1a
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SHA512
3e02e41db2e64c12360972886ed83838c45d702f68d1bc07a47e613d1c8392d13ba393eb6cecbe18a7d4991229b7f6e89525d61bdb0dd77815422956b4c3d92d
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.ananthasuites.com - Port:
587 - Username:
[email protected] - Password:
Anantha225@#
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 3 IoCs
Processes:
resource yara_rule behavioral2/memory/2164-126-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral2/memory/2164-127-0x00000000004374BE-mapping.dmp family_agenttesla behavioral2/memory/2164-133-0x0000000005310000-0x000000000580E000-memory.dmp family_agenttesla -
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
Processes:
Purchase Order.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Purchase Order.exedescription pid process target process PID 2696 set thread context of 2164 2696 Purchase Order.exe Purchase Order.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
Purchase Order.exepid process 2164 Purchase Order.exe 2164 Purchase Order.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Purchase Order.exedescription pid process Token: SeDebugPrivilege 2164 Purchase Order.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
Purchase Order.exedescription pid process target process PID 2696 wrote to memory of 2164 2696 Purchase Order.exe Purchase Order.exe PID 2696 wrote to memory of 2164 2696 Purchase Order.exe Purchase Order.exe PID 2696 wrote to memory of 2164 2696 Purchase Order.exe Purchase Order.exe PID 2696 wrote to memory of 2164 2696 Purchase Order.exe Purchase Order.exe PID 2696 wrote to memory of 2164 2696 Purchase Order.exe Purchase Order.exe PID 2696 wrote to memory of 2164 2696 Purchase Order.exe Purchase Order.exe PID 2696 wrote to memory of 2164 2696 Purchase Order.exe Purchase Order.exe PID 2696 wrote to memory of 2164 2696 Purchase Order.exe Purchase Order.exe -
outlook_office_path 1 IoCs
Processes:
Purchase Order.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe -
outlook_win_path 1 IoCs
Processes:
Purchase Order.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\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 use of WriteProcessMemory
PID:2696 -
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:2164
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
90acfd72f14a512712b1a7380c0faf60
SHA140ba4accb8faa75887e84fb8e38d598dc8cf0f12
SHA25620806822f0c130b340504132c1461b589261fbbc518e468f4f90733ab514cb86
SHA51229dbf85e14e60868574cb4dc9bda83d3c229fb956733d8d2557f2475ee0e690ac9c2e72f31e02284996da6906ba2dbfa382a29b04c15a2406571d8ee19ad16b9