Analysis
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max time kernel
143s -
max time network
42s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
20-05-2022 23:17
Static task
static1
Behavioral task
behavioral1
Sample
INQUIRY No. 280720205467_pdf.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
INQUIRY No. 280720205467_pdf.exe
Resource
win10v2004-20220414-en
General
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Target
INQUIRY No. 280720205467_pdf.exe
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Size
894KB
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MD5
54002d33966a416406390a7336571eb8
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SHA1
0e91f8bf64d008057b27549ffabc8ba53b76b72f
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SHA256
a8f804c2312a502e0eef99eb4582dbb7037bcf89031f707070f97a8ba53e5fb7
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SHA512
34aa4ee50387cfc7b371de4cdbc061dcc175de9e5e2fcfd3e36074b33b77bb932872b0de5fefe0e689a1626b9e565946ab96097263855aebb6877e94ff9f2190
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.specialmetal.ir - Port:
587 - Username:
[email protected] - Password:
02188985257
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 6 IoCs
Processes:
resource yara_rule behavioral1/memory/1228-66-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1228-65-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1228-67-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1228-68-0x00000000004471CE-mapping.dmp family_agenttesla behavioral1/memory/1228-70-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1228-72-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla -
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:
INQUIRY No. 280720205467_pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INQUIRY No. 280720205467_pdf.exe Key opened \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INQUIRY No. 280720205467_pdf.exe Key opened \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INQUIRY No. 280720205467_pdf.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
INQUIRY No. 280720205467_pdf.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows\CurrentVersion\Run\vMsys = "C:\\Users\\Admin\\AppData\\Roaming\\vMsys\\vMsys.exe" INQUIRY No. 280720205467_pdf.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
INQUIRY No. 280720205467_pdf.exedescription pid process target process PID 756 set thread context of 1228 756 INQUIRY No. 280720205467_pdf.exe INQUIRY No. 280720205467_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 2 IoCs
Processes:
INQUIRY No. 280720205467_pdf.exepid process 1228 INQUIRY No. 280720205467_pdf.exe 1228 INQUIRY No. 280720205467_pdf.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
INQUIRY No. 280720205467_pdf.exeINQUIRY No. 280720205467_pdf.exedescription pid process Token: SeDebugPrivilege 756 INQUIRY No. 280720205467_pdf.exe Token: SeDebugPrivilege 1228 INQUIRY No. 280720205467_pdf.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
INQUIRY No. 280720205467_pdf.exepid process 1228 INQUIRY No. 280720205467_pdf.exe -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
INQUIRY No. 280720205467_pdf.exedescription pid process target process PID 756 wrote to memory of 1896 756 INQUIRY No. 280720205467_pdf.exe schtasks.exe PID 756 wrote to memory of 1896 756 INQUIRY No. 280720205467_pdf.exe schtasks.exe PID 756 wrote to memory of 1896 756 INQUIRY No. 280720205467_pdf.exe schtasks.exe PID 756 wrote to memory of 1896 756 INQUIRY No. 280720205467_pdf.exe schtasks.exe PID 756 wrote to memory of 1228 756 INQUIRY No. 280720205467_pdf.exe INQUIRY No. 280720205467_pdf.exe PID 756 wrote to memory of 1228 756 INQUIRY No. 280720205467_pdf.exe INQUIRY No. 280720205467_pdf.exe PID 756 wrote to memory of 1228 756 INQUIRY No. 280720205467_pdf.exe INQUIRY No. 280720205467_pdf.exe PID 756 wrote to memory of 1228 756 INQUIRY No. 280720205467_pdf.exe INQUIRY No. 280720205467_pdf.exe PID 756 wrote to memory of 1228 756 INQUIRY No. 280720205467_pdf.exe INQUIRY No. 280720205467_pdf.exe PID 756 wrote to memory of 1228 756 INQUIRY No. 280720205467_pdf.exe INQUIRY No. 280720205467_pdf.exe PID 756 wrote to memory of 1228 756 INQUIRY No. 280720205467_pdf.exe INQUIRY No. 280720205467_pdf.exe PID 756 wrote to memory of 1228 756 INQUIRY No. 280720205467_pdf.exe INQUIRY No. 280720205467_pdf.exe PID 756 wrote to memory of 1228 756 INQUIRY No. 280720205467_pdf.exe INQUIRY No. 280720205467_pdf.exe -
outlook_office_path 1 IoCs
Processes:
INQUIRY No. 280720205467_pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INQUIRY No. 280720205467_pdf.exe -
outlook_win_path 1 IoCs
Processes:
INQUIRY No. 280720205467_pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INQUIRY No. 280720205467_pdf.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\INQUIRY No. 280720205467_pdf.exe"C:\Users\Admin\AppData\Local\Temp\INQUIRY No. 280720205467_pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:756 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\&startupname&" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1D03.tmp"2⤵
- Creates scheduled task(s)
PID:1896 -
C:\Users\Admin\AppData\Local\Temp\INQUIRY No. 280720205467_pdf.exe"C:\Users\Admin\AppData\Local\Temp\INQUIRY No. 280720205467_pdf.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1228
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD59835adb120cb0656789aa7b85414fb46
SHA17029a0b83bdcc0ed1c0c8a2047cc62d302658e87
SHA25690507a6b0ada49b0d215d26dee4e860b73af854401b572d16953c279287bfa5b
SHA5121c21b4347dcd2458b00d257748023c857195dbe25c5ef4779c0b631ce4ceb969a147a23a24bbe88693fc5f33cb6d9a4900aea969b381f7c980a619ece9bad958