Analysis
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max time kernel
122s -
max time network
147s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system -
submitted
15-05-2024 01:49
Static task
static1
Behavioral task
behavioral1
Sample
documents_24.5.13YTKargo.pdf.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
documents_24.5.13YTKargo.pdf.exe
Resource
win10v2004-20240426-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 5 IoCs
Processes:
resource yara_rule behavioral1/memory/2420-23-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2420-30-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2420-29-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2420-28-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2420-25-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger -
Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 5 IoCs
Processes:
resource yara_rule behavioral1/memory/2420-23-0x0000000000400000-0x0000000000426000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers behavioral1/memory/2420-30-0x0000000000400000-0x0000000000426000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers behavioral1/memory/2420-29-0x0000000000400000-0x0000000000426000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers behavioral1/memory/2420-28-0x0000000000400000-0x0000000000426000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers behavioral1/memory/2420-25-0x0000000000400000-0x0000000000426000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers -
Detects executables referencing many email and collaboration clients. Observed in information stealers 5 IoCs
Processes:
resource yara_rule behavioral1/memory/2420-23-0x0000000000400000-0x0000000000426000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients behavioral1/memory/2420-30-0x0000000000400000-0x0000000000426000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients behavioral1/memory/2420-29-0x0000000000400000-0x0000000000426000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients behavioral1/memory/2420-28-0x0000000000400000-0x0000000000426000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients behavioral1/memory/2420-25-0x0000000000400000-0x0000000000426000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients -
Detects executables with potential process hoocking 5 IoCs
Processes:
resource yara_rule behavioral1/memory/2420-23-0x0000000000400000-0x0000000000426000-memory.dmp INDICATOR_SUSPICIOUS_EXE_DotNetProcHook behavioral1/memory/2420-30-0x0000000000400000-0x0000000000426000-memory.dmp INDICATOR_SUSPICIOUS_EXE_DotNetProcHook behavioral1/memory/2420-29-0x0000000000400000-0x0000000000426000-memory.dmp INDICATOR_SUSPICIOUS_EXE_DotNetProcHook behavioral1/memory/2420-28-0x0000000000400000-0x0000000000426000-memory.dmp INDICATOR_SUSPICIOUS_EXE_DotNetProcHook behavioral1/memory/2420-25-0x0000000000400000-0x0000000000426000-memory.dmp INDICATOR_SUSPICIOUS_EXE_DotNetProcHook -
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 2624 powershell.exe 2580 powershell.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-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 documents_24.5.13YTKargo.pdf.exe Key opened \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 documents_24.5.13YTKargo.pdf.exe Key opened \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\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 4 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
documents_24.5.13YTKargo.pdf.exedescription pid process target process PID 3064 set thread context of 2420 3064 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 6 IoCs
Processes:
documents_24.5.13YTKargo.pdf.exedocuments_24.5.13YTKargo.pdf.exepowershell.exepowershell.exepid process 3064 documents_24.5.13YTKargo.pdf.exe 3064 documents_24.5.13YTKargo.pdf.exe 2420 documents_24.5.13YTKargo.pdf.exe 2624 powershell.exe 2580 powershell.exe 2420 documents_24.5.13YTKargo.pdf.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
documents_24.5.13YTKargo.pdf.exedocuments_24.5.13YTKargo.pdf.exepowershell.exepowershell.exedescription pid process Token: SeDebugPrivilege 3064 documents_24.5.13YTKargo.pdf.exe Token: SeDebugPrivilege 2420 documents_24.5.13YTKargo.pdf.exe Token: SeDebugPrivilege 2624 powershell.exe Token: SeDebugPrivilege 2580 powershell.exe -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
documents_24.5.13YTKargo.pdf.exedescription pid process target process PID 3064 wrote to memory of 2624 3064 documents_24.5.13YTKargo.pdf.exe powershell.exe PID 3064 wrote to memory of 2624 3064 documents_24.5.13YTKargo.pdf.exe powershell.exe PID 3064 wrote to memory of 2624 3064 documents_24.5.13YTKargo.pdf.exe powershell.exe PID 3064 wrote to memory of 2624 3064 documents_24.5.13YTKargo.pdf.exe powershell.exe PID 3064 wrote to memory of 2580 3064 documents_24.5.13YTKargo.pdf.exe powershell.exe PID 3064 wrote to memory of 2580 3064 documents_24.5.13YTKargo.pdf.exe powershell.exe PID 3064 wrote to memory of 2580 3064 documents_24.5.13YTKargo.pdf.exe powershell.exe PID 3064 wrote to memory of 2580 3064 documents_24.5.13YTKargo.pdf.exe powershell.exe PID 3064 wrote to memory of 2556 3064 documents_24.5.13YTKargo.pdf.exe schtasks.exe PID 3064 wrote to memory of 2556 3064 documents_24.5.13YTKargo.pdf.exe schtasks.exe PID 3064 wrote to memory of 2556 3064 documents_24.5.13YTKargo.pdf.exe schtasks.exe PID 3064 wrote to memory of 2556 3064 documents_24.5.13YTKargo.pdf.exe schtasks.exe PID 3064 wrote to memory of 2420 3064 documents_24.5.13YTKargo.pdf.exe documents_24.5.13YTKargo.pdf.exe PID 3064 wrote to memory of 2420 3064 documents_24.5.13YTKargo.pdf.exe documents_24.5.13YTKargo.pdf.exe PID 3064 wrote to memory of 2420 3064 documents_24.5.13YTKargo.pdf.exe documents_24.5.13YTKargo.pdf.exe PID 3064 wrote to memory of 2420 3064 documents_24.5.13YTKargo.pdf.exe documents_24.5.13YTKargo.pdf.exe PID 3064 wrote to memory of 2420 3064 documents_24.5.13YTKargo.pdf.exe documents_24.5.13YTKargo.pdf.exe PID 3064 wrote to memory of 2420 3064 documents_24.5.13YTKargo.pdf.exe documents_24.5.13YTKargo.pdf.exe PID 3064 wrote to memory of 2420 3064 documents_24.5.13YTKargo.pdf.exe documents_24.5.13YTKargo.pdf.exe PID 3064 wrote to memory of 2420 3064 documents_24.5.13YTKargo.pdf.exe documents_24.5.13YTKargo.pdf.exe PID 3064 wrote to memory of 2420 3064 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-1-5-21-2721934792-624042501-2768869379-1000\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-1-5-21-2721934792-624042501-2768869379-1000\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⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3064 -
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:2624 -
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:2580 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EDqfTdWmvf" /XML "C:\Users\Admin\AppData\Local\Temp\tmp369A.tmp"2⤵
- Creates scheduled task(s)
PID:2556 -
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:2420
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD53c1823d0992f084049f746a669edf6e6
SHA1bcdd1e0b1f89181f6ac69f0006a49770fa9001a1
SHA25671eda879ea262b5e874d5099e83b037e12b2f7bc26c3d442504fce3d00a1e773
SHA512c6f738e5a1445ef0747f72ce92e7bb4fada5a4005787d5cd065039930688d41f3649d10aef4df330320101163fe3a52617072b0e8e051ffe58aaccb865d03c2d
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\C0V0EMK8KMLVC2UU3YUC.temp
Filesize7KB
MD5a4b9a14fbe61232be68e811ddcc0bc6e
SHA1fb41e9b53f38906fc15374209a5c1bcb663bf133
SHA2563edc0588c232cff7cf2baed172315ef1a8bf7c3c2d41d7b43f30cdbad17c7007
SHA512ca6db4213fd18d4a46650ab5205396bf48d0bf3e31fca160c66d4f97dcc6e18f303c05961b8be9196832d17d790ec01f6809cf44aa20792e94945f74cdaa750a