Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
27-03-2024 02:37
Static task
static1
Behavioral task
behavioral1
Sample
b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe
Resource
win10v2004-20240226-en
General
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Target
b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe
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Size
615KB
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MD5
8e089d97fa7d7acabafb8ffd749876e5
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SHA1
625e04a12599d830249c86edb35b05a99b68f537
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SHA256
b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee
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SHA512
471baa32b433bcd7585450fd2db4ea1ad186bf2d52244fe38dcdbd1c9a3c3b57ddc71475d3587570dd7d16f4f9451b18b77dde3a43b36d114d33562feac72a82
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SSDEEP
12288:fUBa5WiPawnvlHEwl9bvgmr5jgtsvEG+yusvkXOUfDJI8JDr7:sziPa0vlHpghtK+jBFJDr7
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.sintecno.gr - Port:
587 - Username:
[email protected] - Password:
k$&v8@,q0Pf# - 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. 1 IoCs
Processes:
resource yara_rule behavioral2/memory/1000-10-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_EXE_Packed_GEN01 -
Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
Processes:
resource yara_rule behavioral2/memory/1000-10-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers -
Detects executables packed with SmartAssembly 1 IoCs
Processes:
resource yara_rule behavioral2/memory/5900-7-0x0000000005A10000-0x0000000005A1C000-memory.dmp INDICATOR_EXE_Packed_SmartAssembly -
Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
Processes:
resource yara_rule behavioral2/memory/1000-10-0x0000000000400000-0x0000000000442000-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 1 IoCs
Processes:
resource yara_rule behavioral2/memory/1000-10-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store -
Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
Processes:
resource yara_rule behavioral2/memory/1000-10-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients -
Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
Processes:
resource yara_rule behavioral2/memory/1000-10-0x0000000000400000-0x0000000000442000-memory.dmp INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients -
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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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cUsRDu = "C:\\Users\\Admin\\AppData\\Roaming\\cUsRDu\\cUsRDu.exe" b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.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 42 api.ipify.org 43 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exedescription pid process target process PID 5900 set thread context of 1000 5900 b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe -
Suspicious behavior: EnumeratesProcesses 7 IoCs
Processes:
b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exeb5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exepid process 5900 b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe 5900 b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe 5900 b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe 5900 b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe 1000 b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe 1000 b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe 1000 b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exeb5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exedescription pid process Token: SeDebugPrivilege 5900 b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe Token: SeDebugPrivilege 1000 b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exepid process 1000 b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exedescription pid process target process PID 5900 wrote to memory of 1000 5900 b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe PID 5900 wrote to memory of 1000 5900 b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe PID 5900 wrote to memory of 1000 5900 b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe PID 5900 wrote to memory of 1000 5900 b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe PID 5900 wrote to memory of 1000 5900 b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe PID 5900 wrote to memory of 1000 5900 b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe PID 5900 wrote to memory of 1000 5900 b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe PID 5900 wrote to memory of 1000 5900 b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe"C:\Users\Admin\AppData\Local\Temp\b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5900 -
C:\Users\Admin\AppData\Local\Temp\b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe"C:\Users\Admin\AppData\Local\Temp\b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1000
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1000-10-0x0000000000400000-0x0000000000442000-memory.dmpFilesize
264KB
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memory/1000-19-0x0000000005500000-0x0000000005510000-memory.dmpFilesize
64KB
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memory/1000-18-0x0000000074680000-0x0000000074E30000-memory.dmpFilesize
7.7MB
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memory/1000-17-0x0000000006CF0000-0x0000000006D40000-memory.dmpFilesize
320KB
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memory/1000-13-0x0000000005500000-0x0000000005510000-memory.dmpFilesize
64KB
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memory/1000-14-0x00000000057C0000-0x0000000005826000-memory.dmpFilesize
408KB
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memory/1000-12-0x0000000074680000-0x0000000074E30000-memory.dmpFilesize
7.7MB
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memory/5900-8-0x0000000006470000-0x00000000064F2000-memory.dmpFilesize
520KB
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memory/5900-0-0x0000000000D10000-0x0000000000DB0000-memory.dmpFilesize
640KB
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memory/5900-9-0x0000000008A20000-0x0000000008ABC000-memory.dmpFilesize
624KB
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memory/5900-7-0x0000000005A10000-0x0000000005A1C000-memory.dmpFilesize
48KB
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memory/5900-6-0x0000000005840000-0x0000000005852000-memory.dmpFilesize
72KB
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memory/5900-15-0x0000000074680000-0x0000000074E30000-memory.dmpFilesize
7.7MB
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memory/5900-5-0x0000000005850000-0x000000000585A000-memory.dmpFilesize
40KB
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memory/5900-4-0x0000000005910000-0x0000000005920000-memory.dmpFilesize
64KB
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memory/5900-3-0x0000000005790000-0x0000000005822000-memory.dmpFilesize
584KB
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memory/5900-2-0x0000000005CA0000-0x0000000006244000-memory.dmpFilesize
5.6MB
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memory/5900-1-0x0000000074680000-0x0000000074E30000-memory.dmpFilesize
7.7MB