Analysis
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max time kernel
75s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
08-03-2023 11:18
Static task
static1
Behavioral task
behavioral1
Sample
AWB #3827747403.pdf.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
AWB #3827747403.pdf.exe
Resource
win10v2004-20230220-en
General
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Target
AWB #3827747403.pdf.exe
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Size
959KB
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MD5
960953e9848501c8afad1b0dbfdd92f8
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SHA1
20347baee4f16f123f9acf41ee00a4c86e258f32
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SHA256
ed12b65c4ad6c7849a23e7e6f5b0cc6827af4dab8ff0eef24d78afd9f4bfec1b
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SHA512
f0e30e5acc130073bc26c91d25865b0fa079ca7b15fac9357ad78769eff5ee2da16ff724f66b783669085fcf6118cc35fc10221f7c984aef75ee717a1864f0c5
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SSDEEP
24576:YqWOqd2UhNLdYHHR3SBvZsM8LtncfOJT58:x/qLK34veNLVcfg
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.yandex.com - Port:
587 - Username:
[email protected] - Password:
marcellinus360
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-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.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 1048 set thread context of 820 1048 AWB #3827747403.pdf.exe 32 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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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 860 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 676 powershell.exe 820 RegSvcs.exe 820 RegSvcs.exe 820 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 820 RegSvcs.exe Token: SeDebugPrivilege 676 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 820 RegSvcs.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 1048 wrote to memory of 676 1048 AWB #3827747403.pdf.exe 28 PID 1048 wrote to memory of 676 1048 AWB #3827747403.pdf.exe 28 PID 1048 wrote to memory of 676 1048 AWB #3827747403.pdf.exe 28 PID 1048 wrote to memory of 676 1048 AWB #3827747403.pdf.exe 28 PID 1048 wrote to memory of 860 1048 AWB #3827747403.pdf.exe 30 PID 1048 wrote to memory of 860 1048 AWB #3827747403.pdf.exe 30 PID 1048 wrote to memory of 860 1048 AWB #3827747403.pdf.exe 30 PID 1048 wrote to memory of 860 1048 AWB #3827747403.pdf.exe 30 PID 1048 wrote to memory of 820 1048 AWB #3827747403.pdf.exe 32 PID 1048 wrote to memory of 820 1048 AWB #3827747403.pdf.exe 32 PID 1048 wrote to memory of 820 1048 AWB #3827747403.pdf.exe 32 PID 1048 wrote to memory of 820 1048 AWB #3827747403.pdf.exe 32 PID 1048 wrote to memory of 820 1048 AWB #3827747403.pdf.exe 32 PID 1048 wrote to memory of 820 1048 AWB #3827747403.pdf.exe 32 PID 1048 wrote to memory of 820 1048 AWB #3827747403.pdf.exe 32 PID 1048 wrote to memory of 820 1048 AWB #3827747403.pdf.exe 32 PID 1048 wrote to memory of 820 1048 AWB #3827747403.pdf.exe 32 PID 1048 wrote to memory of 820 1048 AWB #3827747403.pdf.exe 32 PID 1048 wrote to memory of 820 1048 AWB #3827747403.pdf.exe 32 PID 1048 wrote to memory of 820 1048 AWB #3827747403.pdf.exe 32 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\AWB #3827747403.pdf.exe"C:\Users\Admin\AppData\Local\Temp\AWB #3827747403.pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1048 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TgogwrFbdQiEp.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:676
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TgogwrFbdQiEp" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA7A6.tmp"2⤵
- Creates scheduled task(s)
PID:860
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:820
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD5ef5104d404f7dc3f530e917d93113d6a
SHA1e71c32ddf11b5bf2a549aef1249eebd744cda24d
SHA256471a35e6bd8af5e4516920cd0d08bbf8fb2db84cc1ba5a367d5fbe7ef189cce9
SHA512654350e57e45eff401d8060b95e7f516c89dac34b094ce099d8d64fc42f40cf218a1e3ceb6cbd3fb942e412d107425a9b0b9d0a47b75e9cd52599a4cf984ab27