Analysis
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max time kernel
149s -
max time network
125s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
14-05-2024 18:46
Static task
static1
Behavioral task
behavioral1
Sample
documents_24.5.13YTKargo.pdf.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
documents_24.5.13YTKargo.pdf.exe
Resource
win10v2004-20240508-en
General
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Target
documents_24.5.13YTKargo.pdf.exe
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Size
588KB
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MD5
7f9adfa5c6ddb5471f7b391d037252b2
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SHA1
122645622b73002a2d8b8215d6573ab22523a0e2
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SHA256
f815285cda1f471dc22b3c4582d1c5fad00bacc7c5e76a08f289d7fae6a35bd4
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SHA512
5f8b6565006dd61e11da209aa1103ca4987bd397a19da5b38a782f61d7bae13c244a4ba2de78982803b764bdd45a831de382da61bbbf3c3ade4d307675a21ad8
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SSDEEP
12288:2rRgAXYMjhvPie/rByY7777777777777c99E4NQ2CMiH99dsgJJ8Z0WQoiQFzpgi:2dgAXYMFniyyXzEMCMid9prPwDajgSxF
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
mail.ustunambalaj.com.tr - Port:
587 - Username:
[email protected] - Password:
!ttPkj773Ebc - Email To:
[email protected]
https://scratchdreams.tk
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/3716-27-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger -
Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
Processes:
powershell.exepowershell.exepid process 4156 powershell.exe 4612 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
documents_24.5.13YTKargo.pdf.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation documents_24.5.13YTKargo.pdf.exe -
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:
documents_24.5.13YTKargo.pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 documents_24.5.13YTKargo.pdf.exe Key opened \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 documents_24.5.13YTKargo.pdf.exe Key opened \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 documents_24.5.13YTKargo.pdf.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 1 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
documents_24.5.13YTKargo.pdf.exedescription pid process target process PID 448 set thread context of 3716 448 documents_24.5.13YTKargo.pdf.exe documents_24.5.13YTKargo.pdf.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 9 IoCs
Processes:
documents_24.5.13YTKargo.pdf.exepowershell.exepowershell.exedocuments_24.5.13YTKargo.pdf.exepid process 448 documents_24.5.13YTKargo.pdf.exe 4612 powershell.exe 4156 powershell.exe 448 documents_24.5.13YTKargo.pdf.exe 448 documents_24.5.13YTKargo.pdf.exe 3716 documents_24.5.13YTKargo.pdf.exe 4156 powershell.exe 4612 powershell.exe 3716 documents_24.5.13YTKargo.pdf.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
documents_24.5.13YTKargo.pdf.exepowershell.exepowershell.exedocuments_24.5.13YTKargo.pdf.exedescription pid process Token: SeDebugPrivilege 448 documents_24.5.13YTKargo.pdf.exe Token: SeDebugPrivilege 4156 powershell.exe Token: SeDebugPrivilege 4612 powershell.exe Token: SeDebugPrivilege 3716 documents_24.5.13YTKargo.pdf.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
documents_24.5.13YTKargo.pdf.exedescription pid process target process PID 448 wrote to memory of 4156 448 documents_24.5.13YTKargo.pdf.exe powershell.exe PID 448 wrote to memory of 4156 448 documents_24.5.13YTKargo.pdf.exe powershell.exe PID 448 wrote to memory of 4156 448 documents_24.5.13YTKargo.pdf.exe powershell.exe PID 448 wrote to memory of 4612 448 documents_24.5.13YTKargo.pdf.exe powershell.exe PID 448 wrote to memory of 4612 448 documents_24.5.13YTKargo.pdf.exe powershell.exe PID 448 wrote to memory of 4612 448 documents_24.5.13YTKargo.pdf.exe powershell.exe PID 448 wrote to memory of 3924 448 documents_24.5.13YTKargo.pdf.exe schtasks.exe PID 448 wrote to memory of 3924 448 documents_24.5.13YTKargo.pdf.exe schtasks.exe PID 448 wrote to memory of 3924 448 documents_24.5.13YTKargo.pdf.exe schtasks.exe PID 448 wrote to memory of 3716 448 documents_24.5.13YTKargo.pdf.exe documents_24.5.13YTKargo.pdf.exe PID 448 wrote to memory of 3716 448 documents_24.5.13YTKargo.pdf.exe documents_24.5.13YTKargo.pdf.exe PID 448 wrote to memory of 3716 448 documents_24.5.13YTKargo.pdf.exe documents_24.5.13YTKargo.pdf.exe PID 448 wrote to memory of 3716 448 documents_24.5.13YTKargo.pdf.exe documents_24.5.13YTKargo.pdf.exe PID 448 wrote to memory of 3716 448 documents_24.5.13YTKargo.pdf.exe documents_24.5.13YTKargo.pdf.exe PID 448 wrote to memory of 3716 448 documents_24.5.13YTKargo.pdf.exe documents_24.5.13YTKargo.pdf.exe PID 448 wrote to memory of 3716 448 documents_24.5.13YTKargo.pdf.exe documents_24.5.13YTKargo.pdf.exe PID 448 wrote to memory of 3716 448 documents_24.5.13YTKargo.pdf.exe documents_24.5.13YTKargo.pdf.exe -
outlook_office_path 1 IoCs
Processes:
documents_24.5.13YTKargo.pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 documents_24.5.13YTKargo.pdf.exe -
outlook_win_path 1 IoCs
Processes:
documents_24.5.13YTKargo.pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 documents_24.5.13YTKargo.pdf.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\documents_24.5.13YTKargo.pdf.exe"C:\Users\Admin\AppData\Local\Temp\documents_24.5.13YTKargo.pdf.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:448 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\documents_24.5.13YTKargo.pdf.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4156 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\EDqfTdWmvf.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4612 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EDqfTdWmvf" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6793.tmp"2⤵
- Creates scheduled task(s)
PID:3924 -
C:\Users\Admin\AppData\Local\Temp\documents_24.5.13YTKargo.pdf.exe"C:\Users\Admin\AppData\Local\Temp\documents_24.5.13YTKargo.pdf.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3716
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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Filesize
18KB
MD5778555116f62bab0c408556db2ed219e
SHA14baf3643a212d47cd1b6a29788cdb6c6c650962b
SHA256f020ac2d1ea646f5f271298e18e7270a8241f2f7efb5edf02eb338d4ccda578d
SHA5128239f59fc9b501db3a8a07fde0bf27bb3eb052b852485550f9510cd907c2c413a01223e63ff2be3fe43d18501c860088ce7b3e3acb1a891a3a0d33e3946c2ac4
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD5516d5d6bddce066b1ae971fccaf11880
SHA14da4485a33fbdd8927cd677bf0f16818dd012217
SHA25677de518f161c38c78a0fd91112c4a10224610a6458c59f3143c08f6c05317687
SHA512fa44bd5428ad43c1e47f6527f3507addeab1304215a668c5d29c60df4cda17969ed020ff370042daad30ee9d6857020cf6cd1a7b9f9cd95ea6153f0c4e7d15c9