Analysis
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max time kernel
121s -
max time network
127s -
platform
windows7_x64 -
resource
win7-20231023-en -
resource tags
arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system -
submitted
27-11-2023 11:09
Static task
static1
Behavioral task
behavioral1
Sample
Contract.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
Contract.exe
Resource
win10v2004-20231020-en
General
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Target
Contract.exe
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Size
635KB
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MD5
dd93d84341928fb925e5446b3795cae2
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SHA1
60b1c23aa28efb711fce60e82a389635e5e6bbc8
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SHA256
fe2ed4220640da4d6e2e1e89e4a0dcc0bb67aaa2905b22276fc8a31ed65ea9e3
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SHA512
dfdb35755c63180819f38a0693d6d6bcfc564c8448d15be135f84bd7e7f364d3fe7169bb28e07f0e40fe92f9094ccf2c63bc27768ecf001380922fcb23595987
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SSDEEP
12288:pzeMMXRqdK/hWGJG/klXwWFynxWh7OPY6ilWG1gjd7BR6wT:pzeMSREydw/asAhGe/opB
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 5 IoCs
Processes:
resource yara_rule behavioral1/memory/1216-11-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/1216-12-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/1216-15-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/1216-17-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/1216-19-0x0000000000400000-0x0000000000424000-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-1-5-21-3425689832-2386927309-2650718742-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Contract.exe Key opened \REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Contract.exe Key opened \REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000\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 4 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Contract.exedescription pid process target process PID 1976 set thread context of 1216 1976 Contract.exe Contract.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
Contract.exepid process 1216 Contract.exe 1216 Contract.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Contract.exedescription pid process Token: SeDebugPrivilege 1216 Contract.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
Contract.exedescription pid process target process PID 1976 wrote to memory of 1216 1976 Contract.exe Contract.exe PID 1976 wrote to memory of 1216 1976 Contract.exe Contract.exe PID 1976 wrote to memory of 1216 1976 Contract.exe Contract.exe PID 1976 wrote to memory of 1216 1976 Contract.exe Contract.exe PID 1976 wrote to memory of 1216 1976 Contract.exe Contract.exe PID 1976 wrote to memory of 1216 1976 Contract.exe Contract.exe PID 1976 wrote to memory of 1216 1976 Contract.exe Contract.exe PID 1976 wrote to memory of 1216 1976 Contract.exe Contract.exe PID 1976 wrote to memory of 1216 1976 Contract.exe Contract.exe -
outlook_office_path 1 IoCs
Processes:
Contract.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000\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-1-5-21-3425689832-2386927309-2650718742-1000\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:1976 -
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:1216