Analysis
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max time kernel
121s -
max time network
133s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
13-10-2023 18:33
Static task
static1
Behavioral task
behavioral1
Sample
Swift.txt.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
Swift.txt.exe
Resource
win10v2004-20230915-en
General
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Target
Swift.txt.exe
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Size
539KB
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MD5
b1a8dfff51ee717d53c7f90f0840fe9b
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SHA1
33ca9d90da7c348233e4eaa565c5b9b91017709d
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SHA256
008af3e6e04d2340b385793e03af2550e0e18ce1531d635dff30e69d3e820dbf
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SHA512
fbf81cba922f55946d5fc7f7694a9095cef51976eb7780b851f1c2fd34b7a366da7f527f73343b455f15e5d5f9a37cc4b1c2dfab0f43cd72960dfc39feab90e6
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SSDEEP
12288:mdJF9KCvoctGgxTkn3MvWroS5RtS0yUn1vhU2Zq6s9sdX:mdJF4CvoctGITknAWZ1ULtGX
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
mail.megakarsa.com - Port:
587 - Username:
[email protected] - Password:
f1n4nc3m3g4k4Rs4 - Email To:
[email protected]
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/4236-12-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral2/memory/4236-17-0x0000000005180000-0x0000000005190000-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:
Swift.txt.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Swift.txt.exe Key opened \REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Swift.txt.exe Key opened \REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Swift.txt.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 66 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Swift.txt.exedescription pid process target process PID 4776 set thread context of 4236 4776 Swift.txt.exe Swift.txt.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
Swift.txt.exepid process 4236 Swift.txt.exe 4236 Swift.txt.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Swift.txt.exedescription pid process Token: SeDebugPrivilege 4236 Swift.txt.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
Swift.txt.exedescription pid process target process PID 4776 wrote to memory of 4236 4776 Swift.txt.exe Swift.txt.exe PID 4776 wrote to memory of 4236 4776 Swift.txt.exe Swift.txt.exe PID 4776 wrote to memory of 4236 4776 Swift.txt.exe Swift.txt.exe PID 4776 wrote to memory of 4236 4776 Swift.txt.exe Swift.txt.exe PID 4776 wrote to memory of 4236 4776 Swift.txt.exe Swift.txt.exe PID 4776 wrote to memory of 4236 4776 Swift.txt.exe Swift.txt.exe PID 4776 wrote to memory of 4236 4776 Swift.txt.exe Swift.txt.exe PID 4776 wrote to memory of 4236 4776 Swift.txt.exe Swift.txt.exe -
outlook_office_path 1 IoCs
Processes:
Swift.txt.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Swift.txt.exe -
outlook_win_path 1 IoCs
Processes:
Swift.txt.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Swift.txt.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Swift.txt.exe"C:\Users\Admin\AppData\Local\Temp\Swift.txt.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4776 -
C:\Users\Admin\AppData\Local\Temp\Swift.txt.exe"C:\Users\Admin\AppData\Local\Temp\Swift.txt.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4236
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3