Analysis
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max time kernel
144s -
max time network
147s -
platform
windows10_x64 -
resource
win10-en-20210920 -
submitted
20-10-2021 11:11
Static task
static1
Behavioral task
behavioral1
Sample
PO#3344.exe
Resource
win7-en-20211014
Behavioral task
behavioral2
Sample
PO#3344.exe
Resource
win10-en-20210920
General
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Target
PO#3344.exe
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Size
471KB
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MD5
acfec59788ef7b27e7bf1a76737070ce
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SHA1
69f13032f27ed80787bf0ef46c9ba7afe20b5ca4
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SHA256
8ef9fa2906743f48e2cebc330e9d609e2c62baf0b37a025d4816d6202add22bf
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SHA512
e130af3095c47e325d0d7b40df819a240840287025d626a6dcd3a6270bbb35229e52c82f79be19fdc176ad1e621953b52e1c799eb46f8cb0fb265baf9aeced67
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.davaobay.com.ph - Port:
587 - Username:
[email protected] - Password:
p@ssw0rd
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 3 IoCs
Processes:
resource yara_rule behavioral2/memory/4384-124-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral2/memory/4384-125-0x00000000004376CE-mapping.dmp family_agenttesla behavioral2/memory/4384-131-0x0000000005060000-0x000000000555E000-memory.dmp family_agenttesla -
Drops file in Drivers directory 1 IoCs
Processes:
PO#3344.exedescription ioc process File opened for modification C:\Windows\system32\drivers\etc\hosts PO#3344.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
Processes:
PO#3344.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO#3344.exe Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO#3344.exe Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO#3344.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
PO#3344.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run\tKZVPq = "C:\\Users\\Admin\\AppData\\Roaming\\tKZVPq\\tKZVPq.exe" PO#3344.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
PO#3344.exedescription pid process target process PID 4068 set thread context of 4384 4068 PO#3344.exe PO#3344.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
PO#3344.exepid process 4384 PO#3344.exe 4384 PO#3344.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
PO#3344.exedescription pid process Token: SeDebugPrivilege 4384 PO#3344.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
PO#3344.exedescription pid process target process PID 4068 wrote to memory of 4384 4068 PO#3344.exe PO#3344.exe PID 4068 wrote to memory of 4384 4068 PO#3344.exe PO#3344.exe PID 4068 wrote to memory of 4384 4068 PO#3344.exe PO#3344.exe PID 4068 wrote to memory of 4384 4068 PO#3344.exe PO#3344.exe PID 4068 wrote to memory of 4384 4068 PO#3344.exe PO#3344.exe PID 4068 wrote to memory of 4384 4068 PO#3344.exe PO#3344.exe PID 4068 wrote to memory of 4384 4068 PO#3344.exe PO#3344.exe PID 4068 wrote to memory of 4384 4068 PO#3344.exe PO#3344.exe -
outlook_office_path 1 IoCs
Processes:
PO#3344.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO#3344.exe -
outlook_win_path 1 IoCs
Processes:
PO#3344.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO#3344.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\PO#3344.exe"C:\Users\Admin\AppData\Local\Temp\PO#3344.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\PO#3344.exe"C:\Users\Admin\AppData\Local\Temp\PO#3344.exe"2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PO#3344.exe.logMD5
0c2899d7c6746f42d5bbe088c777f94c
SHA1622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1
SHA2565b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458
SHA512ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078
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memory/4068-122-0x0000000009470000-0x0000000009471000-memory.dmpFilesize
4KB
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memory/4068-118-0x0000000007930000-0x0000000007931000-memory.dmpFilesize
4KB
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memory/4068-119-0x00000000078C0000-0x00000000078C1000-memory.dmpFilesize
4KB
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memory/4068-120-0x000000000AFC0000-0x000000000AFC7000-memory.dmpFilesize
28KB
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memory/4068-121-0x0000000007890000-0x0000000007D8E000-memory.dmpFilesize
5.0MB
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memory/4068-115-0x0000000000A00000-0x0000000000A01000-memory.dmpFilesize
4KB
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memory/4068-123-0x000000000AFE0000-0x000000000B038000-memory.dmpFilesize
352KB
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memory/4068-117-0x0000000007D90000-0x0000000007D91000-memory.dmpFilesize
4KB
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memory/4384-124-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/4384-125-0x00000000004376CE-mapping.dmp
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memory/4384-131-0x0000000005060000-0x000000000555E000-memory.dmpFilesize
5.0MB
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memory/4384-132-0x00000000050A0000-0x00000000050A1000-memory.dmpFilesize
4KB
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memory/4384-133-0x0000000005D50000-0x0000000005D51000-memory.dmpFilesize
4KB