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Analysis
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max time kernel
134s -
max time network
136s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
23/05/2023, 10:09
Static task
static1
Behavioral task
behavioral1
Sample
INTERNETCACHE.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
INTERNETCACHE.exe
Resource
win10v2004-20230220-en
General
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Target
INTERNETCACHE.exe
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Size
681KB
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MD5
d29f7f2967179adb21e755ef4e2fb713
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SHA1
cb4f893ae6c02fd6ea734661149d28f321afadf2
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SHA256
1ce24db77fddb5022011d0407f93d6217b84ad6e18bf9be127bd8d2808423b73
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SHA512
19e0c6262d14a8394aeaa5caefe84da356197fe07807bf29016ea24012f20b718e43b0cbc6ff074002e974f0533a0a9836fd73aceea229b32eafe5c52a0b7094
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SSDEEP
12288:CiTB2QwWASA359TWdc7qN+J8Z8OkJ744qs9dH:X5LaFWdj+6Z8OP4qs
Malware Config
Extracted
agenttesla
https://api.telegram.org/bot2134979594:AAFk4QkrlHlt2a-q-EhIoHZBbzxSH0QxiBI/
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.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 14 api.ipify.org 15 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1996 set thread context of 2248 1996 INTERNETCACHE.exe 84 -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1996 INTERNETCACHE.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1996 INTERNETCACHE.exe Token: SeDebugPrivilege 2248 MSBuild.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1996 wrote to memory of 2248 1996 INTERNETCACHE.exe 84 PID 1996 wrote to memory of 2248 1996 INTERNETCACHE.exe 84 PID 1996 wrote to memory of 2248 1996 INTERNETCACHE.exe 84 PID 1996 wrote to memory of 2248 1996 INTERNETCACHE.exe 84 PID 1996 wrote to memory of 2248 1996 INTERNETCACHE.exe 84 PID 1996 wrote to memory of 2248 1996 INTERNETCACHE.exe 84 PID 1996 wrote to memory of 2248 1996 INTERNETCACHE.exe 84 PID 1996 wrote to memory of 2248 1996 INTERNETCACHE.exe 84 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\INTERNETCACHE.exe"C:\Users\Admin\AppData\Local\Temp\INTERNETCACHE.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1996 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2248
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