Analysis
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max time kernel
123s -
max time network
144s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
26/05/2023, 07:23
Static task
static1
Behavioral task
behavioral1
Sample
01958599.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
01958599.exe
Resource
win10v2004-20230220-en
General
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Target
01958599.exe
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Size
716KB
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MD5
971fcae02ecab66b5d8e9bf0603a8c75
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SHA1
a1de4fe698673ff100bffed0fcba2db98e683567
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SHA256
f9d49ba395212bc46444ac00546a04c8da9b251ce103adf52d9c80be61f6348c
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SHA512
f94805781cb7df0ebf67af23d08a4ed7d47ffc4a0e54b8b55a8178241793c4bf4311f866b83c98866635b1ecb0a31101e7034d384e2d408595676bac925377cb
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SSDEEP
12288:LBbmzZBEP85o4Y1yh9uxPuce1Dua0va/g2s8gJ7rUUUQo0JOAxQfl0yCByIQpD:09BEP8tvDB9YzTMc8CB5Q
Malware Config
Extracted
agenttesla
https://api.telegram.org/bot5473903116:AAH0COryXTO6kCeNjQRiy6Z66WJsa9yts6c/
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-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 01958599.exe Key opened \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 01958599.exe Key opened \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 01958599.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 60 api.ipify.org 59 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2544 set thread context of 864 2544 01958599.exe 89 -
Program crash 1 IoCs
pid pid_target Process procid_target 3892 864 WerFault.exe 89 -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 864 01958599.exe 864 01958599.exe 864 01958599.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 864 01958599.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2544 wrote to memory of 864 2544 01958599.exe 89 PID 2544 wrote to memory of 864 2544 01958599.exe 89 PID 2544 wrote to memory of 864 2544 01958599.exe 89 PID 2544 wrote to memory of 864 2544 01958599.exe 89 PID 2544 wrote to memory of 864 2544 01958599.exe 89 PID 2544 wrote to memory of 864 2544 01958599.exe 89 PID 2544 wrote to memory of 864 2544 01958599.exe 89 PID 2544 wrote to memory of 864 2544 01958599.exe 89 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 01958599.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 01958599.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\01958599.exe"C:\Users\Admin\AppData\Local\Temp\01958599.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2544 -
C:\Users\Admin\AppData\Local\Temp\01958599.exe"C:\Users\Admin\AppData\Local\Temp\01958599.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:864 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 864 -s 22043⤵
- Program crash
PID:3892
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 864 -ip 8641⤵PID:4184
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3