Analysis
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max time kernel
67s -
max time network
69s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
06-02-2023 19:14
Static task
static1
Behavioral task
behavioral1
Sample
PO-23-0103000RPM.PDF.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
PO-23-0103000RPM.PDF.exe
Resource
win10v2004-20221111-en
General
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Target
PO-23-0103000RPM.PDF.exe
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Size
823KB
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MD5
f623a5768af272301f33b27655fcbb90
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SHA1
74b12a26b9c94a871b0d89c000b73182a9aa3f4d
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SHA256
92d13e09fd15a7a89caa8753d0fe0f8be6ac49f402a4bbae0da6a6bc57d21c33
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SHA512
1390ac48156c882e26e35949b99242980b4449b828731691dce92ac51828757acd86353022b0c69cdbce85f1ee37ea46403752a9b93e7f8687457533ff19aac7
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SSDEEP
24576:UA3XrxN5IC54TWMWpRo0ysh23SxqoS8w0b:DrtgiBpG0ysAGqr8w
Malware Config
Extracted
agenttesla
https://api.telegram.org/bot5677685939:AAFELEmWBrxMnyX4KiFEXWGKBWoRi9TCLHE/
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
Processes:
PO-23-0103000RPM.PDF.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO-23-0103000RPM.PDF.exe Key opened \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO-23-0103000RPM.PDF.exe Key opened \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO-23-0103000RPM.PDF.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.
Processes:
flow ioc 4 api.ipify.org 5 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
PO-23-0103000RPM.PDF.exedescription pid process target process PID 1168 set thread context of 1656 1168 PO-23-0103000RPM.PDF.exe PO-23-0103000RPM.PDF.exe -
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.
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Suspicious behavior: EnumeratesProcesses 7 IoCs
Processes:
PO-23-0103000RPM.PDF.exepowershell.exepid process 1168 PO-23-0103000RPM.PDF.exe 1168 PO-23-0103000RPM.PDF.exe 1168 PO-23-0103000RPM.PDF.exe 1168 PO-23-0103000RPM.PDF.exe 1168 PO-23-0103000RPM.PDF.exe 1168 PO-23-0103000RPM.PDF.exe 768 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
PO-23-0103000RPM.PDF.exePO-23-0103000RPM.PDF.exepowershell.exedescription pid process Token: SeDebugPrivilege 1168 PO-23-0103000RPM.PDF.exe Token: SeDebugPrivilege 1656 PO-23-0103000RPM.PDF.exe Token: SeDebugPrivilege 768 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
PO-23-0103000RPM.PDF.exepid process 1656 PO-23-0103000RPM.PDF.exe -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
PO-23-0103000RPM.PDF.exedescription pid process target process PID 1168 wrote to memory of 768 1168 PO-23-0103000RPM.PDF.exe powershell.exe PID 1168 wrote to memory of 768 1168 PO-23-0103000RPM.PDF.exe powershell.exe PID 1168 wrote to memory of 768 1168 PO-23-0103000RPM.PDF.exe powershell.exe PID 1168 wrote to memory of 768 1168 PO-23-0103000RPM.PDF.exe powershell.exe PID 1168 wrote to memory of 540 1168 PO-23-0103000RPM.PDF.exe schtasks.exe PID 1168 wrote to memory of 540 1168 PO-23-0103000RPM.PDF.exe schtasks.exe PID 1168 wrote to memory of 540 1168 PO-23-0103000RPM.PDF.exe schtasks.exe PID 1168 wrote to memory of 540 1168 PO-23-0103000RPM.PDF.exe schtasks.exe PID 1168 wrote to memory of 868 1168 PO-23-0103000RPM.PDF.exe PO-23-0103000RPM.PDF.exe PID 1168 wrote to memory of 868 1168 PO-23-0103000RPM.PDF.exe PO-23-0103000RPM.PDF.exe PID 1168 wrote to memory of 868 1168 PO-23-0103000RPM.PDF.exe PO-23-0103000RPM.PDF.exe PID 1168 wrote to memory of 868 1168 PO-23-0103000RPM.PDF.exe PO-23-0103000RPM.PDF.exe PID 1168 wrote to memory of 1656 1168 PO-23-0103000RPM.PDF.exe PO-23-0103000RPM.PDF.exe PID 1168 wrote to memory of 1656 1168 PO-23-0103000RPM.PDF.exe PO-23-0103000RPM.PDF.exe PID 1168 wrote to memory of 1656 1168 PO-23-0103000RPM.PDF.exe PO-23-0103000RPM.PDF.exe PID 1168 wrote to memory of 1656 1168 PO-23-0103000RPM.PDF.exe PO-23-0103000RPM.PDF.exe PID 1168 wrote to memory of 1656 1168 PO-23-0103000RPM.PDF.exe PO-23-0103000RPM.PDF.exe PID 1168 wrote to memory of 1656 1168 PO-23-0103000RPM.PDF.exe PO-23-0103000RPM.PDF.exe PID 1168 wrote to memory of 1656 1168 PO-23-0103000RPM.PDF.exe PO-23-0103000RPM.PDF.exe PID 1168 wrote to memory of 1656 1168 PO-23-0103000RPM.PDF.exe PO-23-0103000RPM.PDF.exe PID 1168 wrote to memory of 1656 1168 PO-23-0103000RPM.PDF.exe PO-23-0103000RPM.PDF.exe -
outlook_office_path 1 IoCs
Processes:
PO-23-0103000RPM.PDF.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO-23-0103000RPM.PDF.exe -
outlook_win_path 1 IoCs
Processes:
PO-23-0103000RPM.PDF.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO-23-0103000RPM.PDF.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\PO-23-0103000RPM.PDF.exe"C:\Users\Admin\AppData\Local\Temp\PO-23-0103000RPM.PDF.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\gRFAlsPgX.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gRFAlsPgX" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCE48.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\PO-23-0103000RPM.PDF.exe"C:\Users\Admin\AppData\Local\Temp\PO-23-0103000RPM.PDF.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\PO-23-0103000RPM.PDF.exe"C:\Users\Admin\AppData\Local\Temp\PO-23-0103000RPM.PDF.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\tmpCE48.tmpFilesize
1KB
MD56d5b62278e45b49886869dbc05cce432
SHA11b961196c3638a92651793261f937f6acbab690d
SHA25604d242aea5f3db26dc04d4a47c578ffb2df36e9fcd78d4ff93663bd02fef2ce9
SHA512aa85f44928b60164ff2e859377bbf33f77cfe49fa7907898cc307d11f7bc4a223d5471b7d01f4bd22bff8a81dfa9b20943e44fc3dc4404dcf52a457a7584c5b1
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memory/540-60-0x0000000000000000-mapping.dmp
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memory/768-59-0x0000000000000000-mapping.dmp
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memory/768-77-0x0000000073780000-0x0000000073D2B000-memory.dmpFilesize
5.7MB
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memory/768-76-0x0000000073780000-0x0000000073D2B000-memory.dmpFilesize
5.7MB
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memory/1168-63-0x0000000002170000-0x00000000021A2000-memory.dmpFilesize
200KB
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memory/1168-58-0x00000000054D0000-0x000000000555C000-memory.dmpFilesize
560KB
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memory/1168-57-0x00000000005C0000-0x00000000005CC000-memory.dmpFilesize
48KB
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memory/1168-54-0x0000000000180000-0x0000000000254000-memory.dmpFilesize
848KB
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memory/1168-55-0x0000000075881000-0x0000000075883000-memory.dmpFilesize
8KB
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memory/1168-56-0x00000000003E0000-0x00000000003F4000-memory.dmpFilesize
80KB
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memory/1656-67-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1656-68-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1656-70-0x000000000042B16E-mapping.dmp
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memory/1656-69-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1656-74-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1656-72-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1656-65-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1656-64-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB