Analysis
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max time kernel
135s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20231023-en -
resource tags
arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system -
submitted
27-11-2023 01:57
Static task
static1
Behavioral task
behavioral1
Sample
Contract.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
Contract.exe
Resource
win10v2004-20231023-en
General
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Target
Contract.exe
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Size
493KB
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MD5
528120e21119abe464179f5ab433a333
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SHA1
b80f5f12815584bddb246d36427c994629ba5c8e
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SHA256
24c6082628e6b6daeede59cf5c1f1174a3ab6b3ac7e0d795f8c7c3af490f1940
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SHA512
749df3aaf9c3ce8bc8bda8e0396da814a29f60390dfc24e1bf7f1b121bda13a4f0de4e95f56f5a539e37fd6b6d2acced75c80e644fcab45fef1a96810d2170c4
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SSDEEP
12288:IN72CULP2X6Y+zbok1xB9vb5R3GhnEDVXyFRQ4ShjqFB1D:paqbzcUxz2x0CF7D
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
mail.mct2.co.za - Port:
587 - Username:
[email protected] - Password:
00000
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/4604-13-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger -
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:
Contract.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3125601242-331447593-1512828465-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Contract.exe Key opened \REGISTRY\USER\S-1-5-21-3125601242-331447593-1512828465-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Contract.exe Key opened \REGISTRY\USER\S-1-5-21-3125601242-331447593-1512828465-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Contract.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 35 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Contract.exedescription pid process target process PID 772 set thread context of 4604 772 Contract.exe Contract.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
Contract.exepid process 4604 Contract.exe 4604 Contract.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Contract.exedescription pid process Token: SeDebugPrivilege 4604 Contract.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
Contract.exedescription pid process target process PID 772 wrote to memory of 4604 772 Contract.exe Contract.exe PID 772 wrote to memory of 4604 772 Contract.exe Contract.exe PID 772 wrote to memory of 4604 772 Contract.exe Contract.exe PID 772 wrote to memory of 4604 772 Contract.exe Contract.exe PID 772 wrote to memory of 4604 772 Contract.exe Contract.exe PID 772 wrote to memory of 4604 772 Contract.exe Contract.exe PID 772 wrote to memory of 4604 772 Contract.exe Contract.exe PID 772 wrote to memory of 4604 772 Contract.exe Contract.exe -
outlook_office_path 1 IoCs
Processes:
Contract.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3125601242-331447593-1512828465-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Contract.exe -
outlook_win_path 1 IoCs
Processes:
Contract.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3125601242-331447593-1512828465-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Contract.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Contract.exe"C:\Users\Admin\AppData\Local\Temp\Contract.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:772 -
C:\Users\Admin\AppData\Local\Temp\Contract.exe"C:\Users\Admin\AppData\Local\Temp\Contract.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4604