Analysis
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max time kernel
143s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
11/10/2023, 14:27
Static task
static1
Behavioral task
behavioral1
Sample
dochus20230925.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
dochus20230925.exe
Resource
win10v2004-20230915-en
General
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Target
dochus20230925.exe
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Size
1.0MB
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MD5
363044c48c8d035c08cddcdb22bb0838
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SHA1
6ae25dd4586629db60429c3c66cac81ee735c9dc
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SHA256
7d31211e88bbc31cd128c1b5a3ae9e1dbbb823b449f807e3d3a6669047810dc1
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SHA512
c98eff4c05ccd72906c50ea863cece139ea27ef3aba9ed5c19c32338006b092b18176d628345695000a0d4d3ba5a99f9990ff29f1d2ebb716a5e3ea57f85b302
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SSDEEP
24576:eRT5oEFwWfz/1sAsSn46qttH6n6MYAUH+5ZxGIAU:eN5EWr/1sZSn46qX5J+5ZxRh
Malware Config
Extracted
Protocol: smtp- Host:
mail.product-secured.com - Port:
587 - Username:
[email protected] - Password:
2V8SHFwjad34@@##
Extracted
agenttesla
Protocol: smtp- Host:
mail.product-secured.com - Port:
587 - Username:
[email protected] - Password:
2V8SHFwjad34@@## - 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-1-5-21-3027552071-446050021-1254071215-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 dochus20230925.exe Key opened \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 dochus20230925.exe Key opened \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 dochus20230925.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 61 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2944 set thread context of 1376 2944 dochus20230925.exe 94 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1376 dochus20230925.exe 1376 dochus20230925.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1376 dochus20230925.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1376 dochus20230925.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2944 wrote to memory of 1376 2944 dochus20230925.exe 94 PID 2944 wrote to memory of 1376 2944 dochus20230925.exe 94 PID 2944 wrote to memory of 1376 2944 dochus20230925.exe 94 PID 2944 wrote to memory of 1376 2944 dochus20230925.exe 94 PID 2944 wrote to memory of 1376 2944 dochus20230925.exe 94 PID 2944 wrote to memory of 1376 2944 dochus20230925.exe 94 PID 2944 wrote to memory of 1376 2944 dochus20230925.exe 94 PID 2944 wrote to memory of 1376 2944 dochus20230925.exe 94 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 dochus20230925.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 dochus20230925.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\dochus20230925.exe"C:\Users\Admin\AppData\Local\Temp\dochus20230925.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2944 -
C:\Users\Admin\AppData\Local\Temp\dochus20230925.exe"C:\Users\Admin\AppData\Local\Temp\dochus20230925.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1376
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