Analysis
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max time kernel
137s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20231023-en -
resource tags
arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system -
submitted
26-11-2023 16:49
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
475KB
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MD5
9176d70680c26f6ecdcaa34176e156cc
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SHA1
921afd31d5f7acaf2308325346a705d2ca11d18e
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SHA256
d80adfb429565563472cc6e9d4fef4b8435c2804ad977c4f4d5452cf5462cb59
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SHA512
bbfeb4ddd91151c735a6dd9e5522f56ae0bd58fd86ae2df9fe7aa0e4ce41cbe15824beb91e6163b4aae47f8327375ea46690d6924c10f625a41cf93adf210bc9
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SSDEEP
12288:/y8opMEnPv0OxHxsk22oAKXTYLzLFjLm5AbAJzh/j67FEoc05n1F:/FUv/xsk2pcLvFjLmxjEEn0F
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 2 IoCs
Processes:
resource yara_rule behavioral2/memory/4844-12-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral2/memory/4844-19-0x0000000005B40000-0x0000000005B50000-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 33 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Contract.exedescription pid process target process PID 4668 set thread context of 4844 4668 Contract.exe Contract.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
Contract.exeContract.exepid process 4668 Contract.exe 4668 Contract.exe 4668 Contract.exe 4668 Contract.exe 4668 Contract.exe 4668 Contract.exe 4844 Contract.exe 4844 Contract.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
Contract.exeContract.exedescription pid process Token: SeDebugPrivilege 4668 Contract.exe Token: SeDebugPrivilege 4844 Contract.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
Contract.exedescription pid process target process PID 4668 wrote to memory of 3336 4668 Contract.exe Contract.exe PID 4668 wrote to memory of 3336 4668 Contract.exe Contract.exe PID 4668 wrote to memory of 3336 4668 Contract.exe Contract.exe PID 4668 wrote to memory of 3992 4668 Contract.exe Contract.exe PID 4668 wrote to memory of 3992 4668 Contract.exe Contract.exe PID 4668 wrote to memory of 3992 4668 Contract.exe Contract.exe PID 4668 wrote to memory of 4508 4668 Contract.exe Contract.exe PID 4668 wrote to memory of 4508 4668 Contract.exe Contract.exe PID 4668 wrote to memory of 4508 4668 Contract.exe Contract.exe PID 4668 wrote to memory of 4844 4668 Contract.exe Contract.exe PID 4668 wrote to memory of 4844 4668 Contract.exe Contract.exe PID 4668 wrote to memory of 4844 4668 Contract.exe Contract.exe PID 4668 wrote to memory of 4844 4668 Contract.exe Contract.exe PID 4668 wrote to memory of 4844 4668 Contract.exe Contract.exe PID 4668 wrote to memory of 4844 4668 Contract.exe Contract.exe PID 4668 wrote to memory of 4844 4668 Contract.exe Contract.exe PID 4668 wrote to memory of 4844 4668 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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4668 -
C:\Users\Admin\AppData\Local\Temp\Contract.exe"C:\Users\Admin\AppData\Local\Temp\Contract.exe"2⤵PID:3336
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C:\Users\Admin\AppData\Local\Temp\Contract.exe"C:\Users\Admin\AppData\Local\Temp\Contract.exe"2⤵PID:3992
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C:\Users\Admin\AppData\Local\Temp\Contract.exe"C:\Users\Admin\AppData\Local\Temp\Contract.exe"2⤵PID:4508
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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:4844