Analysis
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max time kernel
122s -
max time network
126s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
30-04-2024 01:19
Static task
static1
Behavioral task
behavioral1
Sample
Ref227395588_pdf.scr
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
Ref227395588_pdf.scr
Resource
win10v2004-20240419-en
General
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Target
Ref227395588_pdf.scr
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Size
505KB
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MD5
88db09b12a478cac87ed465252c6c8f7
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SHA1
0e3acd2b568bd58fcfd2e914eff2c982deb55258
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SHA256
0f0b721073a35fe3e6b37d75582704acd5bdc1b3d71343e74d6fec59ac932deb
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SHA512
7d228d662e3271920094e345d36597c2e6c880d12fc3cef8c3f1206711a0b49f93d2275b5527d8ce88c1e3772d0b011161d1bd16688cb9db28471a75b949ab67
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SSDEEP
6144:+Z6ySmRH93qXyS8KevIl/8/vpwO4XMGdKf4xU0PrH7KjnvQWTk85KqZIMHYJqE4E:RySuRbpGv64vPrHmnkb+NHYqXZ4fa
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
gator3220.hostgator.com - Port:
587 - Username:
[email protected] - Password:
28#75@ts76#V1F8h - 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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Detect packed .NET executables. Mostly AgentTeslaV4. 5 IoCs
Processes:
resource yara_rule behavioral1/memory/1720-21-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_EXE_Packed_GEN01 behavioral1/memory/1720-19-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_EXE_Packed_GEN01 behavioral1/memory/1720-17-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_EXE_Packed_GEN01 behavioral1/memory/1720-14-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_EXE_Packed_GEN01 behavioral1/memory/1720-13-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_EXE_Packed_GEN01 -
Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 5 IoCs
Processes:
resource yara_rule behavioral1/memory/1720-21-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers behavioral1/memory/1720-19-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers behavioral1/memory/1720-17-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers behavioral1/memory/1720-14-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers behavioral1/memory/1720-13-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers -
Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 5 IoCs
Processes:
resource yara_rule behavioral1/memory/1720-21-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL behavioral1/memory/1720-19-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL behavioral1/memory/1720-17-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL behavioral1/memory/1720-14-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL behavioral1/memory/1720-13-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL -
Detects executables referencing Windows vault credential objects. Observed in infostealers 5 IoCs
Processes:
resource yara_rule behavioral1/memory/1720-21-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID behavioral1/memory/1720-19-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID behavioral1/memory/1720-17-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID behavioral1/memory/1720-14-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID behavioral1/memory/1720-13-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID -
Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 5 IoCs
Processes:
resource yara_rule behavioral1/memory/1720-21-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store behavioral1/memory/1720-19-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store behavioral1/memory/1720-17-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store behavioral1/memory/1720-14-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store behavioral1/memory/1720-13-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store -
Detects executables referencing many email and collaboration clients. Observed in information stealers 5 IoCs
Processes:
resource yara_rule behavioral1/memory/1720-21-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients behavioral1/memory/1720-19-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients behavioral1/memory/1720-17-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients behavioral1/memory/1720-14-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients behavioral1/memory/1720-13-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients -
Detects executables referencing many file transfer clients. Observed in information stealers 5 IoCs
Processes:
resource yara_rule behavioral1/memory/1720-21-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients behavioral1/memory/1720-19-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients behavioral1/memory/1720-17-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients behavioral1/memory/1720-14-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients behavioral1/memory/1720-13-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients -
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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Looks up external IP address via web service 3 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 6 ip-api.com -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Ref227395588_pdf.scrdescription pid process target process PID 2936 set thread context of 1720 2936 Ref227395588_pdf.scr RegAsm.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
Powershell.exeRegAsm.exepid process 2956 Powershell.exe 1720 RegAsm.exe 1720 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
Powershell.exeRegAsm.exedescription pid process Token: SeDebugPrivilege 2956 Powershell.exe Token: SeDebugPrivilege 1720 RegAsm.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
RegAsm.exepid process 1720 RegAsm.exe -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
Ref227395588_pdf.scrdescription pid process target process PID 2936 wrote to memory of 2956 2936 Ref227395588_pdf.scr Powershell.exe PID 2936 wrote to memory of 2956 2936 Ref227395588_pdf.scr Powershell.exe PID 2936 wrote to memory of 2956 2936 Ref227395588_pdf.scr Powershell.exe PID 2936 wrote to memory of 2956 2936 Ref227395588_pdf.scr Powershell.exe PID 2936 wrote to memory of 1720 2936 Ref227395588_pdf.scr RegAsm.exe PID 2936 wrote to memory of 1720 2936 Ref227395588_pdf.scr RegAsm.exe PID 2936 wrote to memory of 1720 2936 Ref227395588_pdf.scr RegAsm.exe PID 2936 wrote to memory of 1720 2936 Ref227395588_pdf.scr RegAsm.exe PID 2936 wrote to memory of 1720 2936 Ref227395588_pdf.scr RegAsm.exe PID 2936 wrote to memory of 1720 2936 Ref227395588_pdf.scr RegAsm.exe PID 2936 wrote to memory of 1720 2936 Ref227395588_pdf.scr RegAsm.exe PID 2936 wrote to memory of 1720 2936 Ref227395588_pdf.scr RegAsm.exe PID 2936 wrote to memory of 1720 2936 Ref227395588_pdf.scr RegAsm.exe PID 2936 wrote to memory of 1720 2936 Ref227395588_pdf.scr RegAsm.exe PID 2936 wrote to memory of 1720 2936 Ref227395588_pdf.scr RegAsm.exe PID 2936 wrote to memory of 1720 2936 Ref227395588_pdf.scr RegAsm.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Ref227395588_pdf.scr"C:\Users\Admin\AppData\Local\Temp\Ref227395588_pdf.scr" /S1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2936 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe"Powershell.exe" 'C:\Users\Admin\AppData\Local\Temp\Ref227395588_pdf.scr' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\command-line.exe'2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2956 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1720
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1720-11-0x0000000000400000-0x0000000000442000-memory.dmpFilesize
264KB
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memory/1720-12-0x0000000000400000-0x0000000000442000-memory.dmpFilesize
264KB
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memory/1720-13-0x0000000000400000-0x0000000000442000-memory.dmpFilesize
264KB
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memory/1720-14-0x0000000000400000-0x0000000000442000-memory.dmpFilesize
264KB
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memory/1720-17-0x0000000000400000-0x0000000000442000-memory.dmpFilesize
264KB
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memory/1720-19-0x0000000000400000-0x0000000000442000-memory.dmpFilesize
264KB
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memory/1720-21-0x0000000000400000-0x0000000000442000-memory.dmpFilesize
264KB
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memory/1720-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmpFilesize
4KB
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memory/2936-10-0x0000000000780000-0x000000000078A000-memory.dmpFilesize
40KB
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memory/2936-0-0x0000000000CC0000-0x0000000000D44000-memory.dmpFilesize
528KB
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memory/2936-3-0x00000000008D0000-0x0000000000926000-memory.dmpFilesize
344KB
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memory/2936-2-0x0000000000AE0000-0x0000000000B20000-memory.dmpFilesize
256KB
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memory/2936-1-0x0000000074620000-0x0000000074D0E000-memory.dmpFilesize
6.9MB
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memory/2936-22-0x0000000074620000-0x0000000074D0E000-memory.dmpFilesize
6.9MB
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memory/2956-9-0x000000006F6D0000-0x000000006FC7B000-memory.dmpFilesize
5.7MB
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memory/2956-8-0x000000006F6D0000-0x000000006FC7B000-memory.dmpFilesize
5.7MB
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memory/2956-6-0x000000006F6D0000-0x000000006FC7B000-memory.dmpFilesize
5.7MB
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memory/2956-7-0x0000000002D60000-0x0000000002DA0000-memory.dmpFilesize
256KB