Analysis
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max time kernel
128s -
max time network
136s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
17/09/2023, 16:19
Static task
static1
Behavioral task
behavioral1
Sample
a980d350e70cc56b6b95e9476f9b87a930a2b102ada18e335ec8eb11fbea05bc.zip
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
a980d350e70cc56b6b95e9476f9b87a930a2b102ada18e335ec8eb11fbea05bc.zip
Resource
win10v2004-20230915-en
Behavioral task
behavioral3
Sample
Proforma67.exe
Resource
win7-20230831-en
Behavioral task
behavioral4
Sample
Proforma67.exe
Resource
win10v2004-20230915-en
General
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Target
Proforma67.exe
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Size
705KB
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MD5
29d2ced5850992f33389369b7ba52080
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SHA1
e9eca5a139d2294a7a34d171a74fc00d82faf37f
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SHA256
ad29425198634252a81a5cdcd4a137d542ca3e489d79b5d6fa063a3bb125c2a0
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SHA512
82cea6c7b2a93626127398576c222639e3dbaade6dd0b88c359f096bfbcc1df618e64f78207c7b850d9562d03706d2bf7adc343209355c79bede5f88cb2a0fbf
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SSDEEP
12288:ag21QtN9waPihL+QXMR+hKJTsyvPzZuyhwRmy4iqFghLb9LtX3t:oovPihqQXMoUFvvQzR2t6bNtn
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.premium-industries.com - Port:
587 - Username:
[email protected] - Password:
kstanpmi453846 - 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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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000\Control Panel\International\Geo\Nation Proforma67.exe -
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-1-5-21-919254492-3979293997-764407192-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Proforma67.exe Key opened \REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Proforma67.exe Key opened \REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Proforma67.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 44 api.ipify.org 45 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4660 set thread context of 4184 4660 Proforma67.exe 94 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 4660 Proforma67.exe 4660 Proforma67.exe 4660 Proforma67.exe 4660 Proforma67.exe 4184 Proforma67.exe 4184 Proforma67.exe 1696 powershell.exe 1696 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4660 Proforma67.exe Token: SeDebugPrivilege 4184 Proforma67.exe Token: SeDebugPrivilege 1696 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4184 Proforma67.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 4660 wrote to memory of 1696 4660 Proforma67.exe 90 PID 4660 wrote to memory of 1696 4660 Proforma67.exe 90 PID 4660 wrote to memory of 1696 4660 Proforma67.exe 90 PID 4660 wrote to memory of 1388 4660 Proforma67.exe 92 PID 4660 wrote to memory of 1388 4660 Proforma67.exe 92 PID 4660 wrote to memory of 1388 4660 Proforma67.exe 92 PID 4660 wrote to memory of 4928 4660 Proforma67.exe 93 PID 4660 wrote to memory of 4928 4660 Proforma67.exe 93 PID 4660 wrote to memory of 4928 4660 Proforma67.exe 93 PID 4660 wrote to memory of 4184 4660 Proforma67.exe 94 PID 4660 wrote to memory of 4184 4660 Proforma67.exe 94 PID 4660 wrote to memory of 4184 4660 Proforma67.exe 94 PID 4660 wrote to memory of 4184 4660 Proforma67.exe 94 PID 4660 wrote to memory of 4184 4660 Proforma67.exe 94 PID 4660 wrote to memory of 4184 4660 Proforma67.exe 94 PID 4660 wrote to memory of 4184 4660 Proforma67.exe 94 PID 4660 wrote to memory of 4184 4660 Proforma67.exe 94 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Proforma67.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Proforma67.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Proforma67.exe"C:\Users\Admin\AppData\Local\Temp\Proforma67.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4660 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Proforma67.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1696
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C:\Users\Admin\AppData\Local\Temp\Proforma67.exe"C:\Users\Admin\AppData\Local\Temp\Proforma67.exe"2⤵PID:1388
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C:\Users\Admin\AppData\Local\Temp\Proforma67.exe"C:\Users\Admin\AppData\Local\Temp\Proforma67.exe"2⤵PID:4928
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C:\Users\Admin\AppData\Local\Temp\Proforma67.exe"C:\Users\Admin\AppData\Local\Temp\Proforma67.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:4184
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82