Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20251015-en - resource tags
arch:x64arch:x86image:win11-20251015-enlocale:en-usos:windows11-21h2-x64system - submitted
05/11/2025, 07:46
Static task
static1
Behavioral task
behavioral1
Sample
factura.pdf.exe
Resource
win10v2004-20250619-en
Behavioral task
behavioral2
Sample
factura.pdf.exe
Resource
win11-20251015-en
General
- Target factura.pdf.exe
- Size 687KB
- Sample251105-jmaagsyncx
- SHA256 3b58ece6a12f3fb6798bb73e6109decd2c8901962dc0db9d0cf22a13b87b21b8
- MD5 240ee2a123295e4680ba4b3a33b1a3ac
- SHA1 365cea2ce72f8cf376fa77dc4da66cc9f51860c9
- SHA512 8706e1e19c5feda4ca38f14a38e5ad85b764d7bf4755131556fe30730a9d043815a1a1532d542865bc15086c3a31187fef639a7a70159ef17b64ad6c8bbe8de9
- SSDEEP 12288:0o2iNxeRPAZWuAvUZnvYVmDF1xmmr8lFjZrfmZ8O/OxTB09BBf:0o1b+SWuEBmDrroFj5fO8QYTi9Bx
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
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snakekeylogger
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https://api.telegram.org/bot8248432977:AAGUzfwTYQOdpFzylKkMVaWWzVDUza8CSEE/sendMessage?chat_id=5769492467
Signatures
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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\DisableAntiSpyware = "1" factura.pdf.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\DisableAntiSpyware = "1" ocvVHJnam.exe - Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 1 IoCs
resource yara_rule behavioral2/memory/4788-36-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger - Snakekeylogger family
- Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 5644 powershell.exe 2204 powershell.exe 5772 powershell.exe 5916 powershell.exe - Disables RegEdit via registry modification 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2318277690-2490144949-3346562762-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" REG.exe - Disables Task Manager via registry modification
- Executes dropped EXE 2 IoCs
pid Process 5720 ocvVHJnam.exe 4044 ocvVHJnam.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.
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2318277690-2490144949-3346562762-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 factura.pdf.exe Key opened \REGISTRY\USER\S-1-5-21-2318277690-2490144949-3346562762-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ocvVHJnam.exe Key opened \REGISTRY\USER\S-1-5-21-2318277690-2490144949-3346562762-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ocvVHJnam.exe Key opened \REGISTRY\USER\S-1-5-21-2318277690-2490144949-3346562762-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ocvVHJnam.exe Key opened \REGISTRY\USER\S-1-5-21-2318277690-2490144949-3346562762-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 factura.pdf.exe Key opened \REGISTRY\USER\S-1-5-21-2318277690-2490144949-3346562762-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 factura.pdf.exe - Looks up external IP address via web service 4 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 1 checkip.dyndns.org 1 reallyfreegeoip.org 3 reallyfreegeoip.org 7 reallyfreegeoip.org - SmartAssembly .NET packer 1 IoCs
Detects SmartAssembly .NET packer.
resource yara_rule behavioral2/memory/1468-8-0x0000000006EF0000-0x0000000006EFE000-memory.dmp SmartAssembly - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1468 set thread context of 4788 1468 factura.pdf.exe 90 PID 5720 set thread context of 4044 5720 ocvVHJnam.exe 101 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 12 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language factura.pdf.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language factura.pdf.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language REG.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language REG.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ocvVHJnam.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ocvVHJnam.exe - Modifies registry key 1 TTPs 2 IoCs
pid Process 4668 REG.exe 2384 REG.exe - Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 5904 schtasks.exe 5972 schtasks.exe - Suspicious behavior: EnumeratesProcesses 12 IoCs
pid Process 2204 powershell.exe 5644 powershell.exe 4788 factura.pdf.exe 5644 powershell.exe 2204 powershell.exe 4788 factura.pdf.exe 5772 powershell.exe 5916 powershell.exe 4044 ocvVHJnam.exe 5772 powershell.exe 5916 powershell.exe 4044 ocvVHJnam.exe - Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeDebugPrivilege 2204 powershell.exe Token: SeDebugPrivilege 5644 powershell.exe Token: SeDebugPrivilege 4788 factura.pdf.exe Token: SeDebugPrivilege 5772 powershell.exe Token: SeDebugPrivilege 5916 powershell.exe Token: SeDebugPrivilege 4044 ocvVHJnam.exe - Suspicious use of WriteProcessMemory 40 IoCs
description pid Process procid_target PID 1468 wrote to memory of 5644 1468 factura.pdf.exe 84 PID 1468 wrote to memory of 5644 1468 factura.pdf.exe 84 PID 1468 wrote to memory of 5644 1468 factura.pdf.exe 84 PID 1468 wrote to memory of 2204 1468 factura.pdf.exe 86 PID 1468 wrote to memory of 2204 1468 factura.pdf.exe 86 PID 1468 wrote to memory of 2204 1468 factura.pdf.exe 86 PID 1468 wrote to memory of 5904 1468 factura.pdf.exe 87 PID 1468 wrote to memory of 5904 1468 factura.pdf.exe 87 PID 1468 wrote to memory of 5904 1468 factura.pdf.exe 87 PID 1468 wrote to memory of 4788 1468 factura.pdf.exe 90 PID 1468 wrote to memory of 4788 1468 factura.pdf.exe 90 PID 1468 wrote to memory of 4788 1468 factura.pdf.exe 90 PID 1468 wrote to memory of 4788 1468 factura.pdf.exe 90 PID 1468 wrote to memory of 4788 1468 factura.pdf.exe 90 PID 1468 wrote to memory of 4788 1468 factura.pdf.exe 90 PID 1468 wrote to memory of 4788 1468 factura.pdf.exe 90 PID 1468 wrote to memory of 4788 1468 factura.pdf.exe 90 PID 4788 wrote to memory of 4668 4788 factura.pdf.exe 93 PID 4788 wrote to memory of 4668 4788 factura.pdf.exe 93 PID 4788 wrote to memory of 4668 4788 factura.pdf.exe 93 PID 5720 wrote to memory of 5772 5720 ocvVHJnam.exe 95 PID 5720 wrote to memory of 5772 5720 ocvVHJnam.exe 95 PID 5720 wrote to memory of 5772 5720 ocvVHJnam.exe 95 PID 5720 wrote to memory of 5916 5720 ocvVHJnam.exe 97 PID 5720 wrote to memory of 5916 5720 ocvVHJnam.exe 97 PID 5720 wrote to memory of 5916 5720 ocvVHJnam.exe 97 PID 5720 wrote to memory of 5972 5720 ocvVHJnam.exe 98 PID 5720 wrote to memory of 5972 5720 ocvVHJnam.exe 98 PID 5720 wrote to memory of 5972 5720 ocvVHJnam.exe 98 PID 5720 wrote to memory of 4044 5720 ocvVHJnam.exe 101 PID 5720 wrote to memory of 4044 5720 ocvVHJnam.exe 101 PID 5720 wrote to memory of 4044 5720 ocvVHJnam.exe 101 PID 5720 wrote to memory of 4044 5720 ocvVHJnam.exe 101 PID 5720 wrote to memory of 4044 5720 ocvVHJnam.exe 101 PID 5720 wrote to memory of 4044 5720 ocvVHJnam.exe 101 PID 5720 wrote to memory of 4044 5720 ocvVHJnam.exe 101 PID 5720 wrote to memory of 4044 5720 ocvVHJnam.exe 101 PID 4044 wrote to memory of 2384 4044 ocvVHJnam.exe 102 PID 4044 wrote to memory of 2384 4044 ocvVHJnam.exe 102 PID 4044 wrote to memory of 2384 4044 ocvVHJnam.exe 102 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2318277690-2490144949-3346562762-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ocvVHJnam.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2318277690-2490144949-3346562762-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ocvVHJnam.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\factura.pdf.exe"C:\Users\Admin\AppData\Local\Temp\factura.pdf.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1468 -
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\factura.pdf.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5644
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ocvVHJnam.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2204
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ocvVHJnam" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBF1A.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:5904
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C:\Users\Admin\AppData\Local\Temp\factura.pdf.exe"C:\Users\Admin\AppData\Local\Temp\factura.pdf.exe"2⤵
- Modifies Windows Defender DisableAntiSpyware settings
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4788 -
C:\Windows\SysWOW64\REG.exeREG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 1 /f3⤵
- Disables RegEdit via registry modification
- System Location Discovery: System Language Discovery
- Modifies registry key
PID:4668
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C:\Users\Admin\AppData\Roaming\ocvVHJnam.exeC:\Users\Admin\AppData\Roaming\ocvVHJnam.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5720 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ocvVHJnam.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5772
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ocvVHJnam.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5916
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ocvVHJnam" /XML "C:\Users\Admin\AppData\Local\Temp\tmp990.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:5972
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C:\Users\Admin\AppData\Roaming\ocvVHJnam.exe"C:\Users\Admin\AppData\Roaming\ocvVHJnam.exe"2⤵
- Modifies Windows Defender DisableAntiSpyware settings
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:4044 -
C:\Windows\SysWOW64\REG.exeREG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 1 /f3⤵
- System Location Discovery: System Language Discovery
- Modifies registry key
PID:2384
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Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
2Credentials In Files
2Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
- Size 2KB
- SHA256 9600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
- MD5 d0c46cad6c0778401e21910bd6b56b70
- SHA1 7be418951ea96326aca445b8dfe449b2bfa0dca6
- SHA512 057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
- Size 18KB
- SHA256 b4b505df9ca8c47f05c28364e3cf2c56d3c10ffac687b3a2a7db597650b8f64b
- MD5 320116dd314a748f4f9aff39ccbc72c2
- SHA1 6a47ce35f5bf3478ab9d6ffd8b04a456a97b4228
- SHA512 91dfb1ef488dbc5c1a7a6f0ca085fe32a558636077bf675c873ed309cf2173872bd2a01f3e78e0d17b71712605589cb2d43d4c3b095a4ae41da22b750f34ce6c
- SSDEEP 384:yTHhY1SGMvmu1FRHEtwZeHTznnNjsaa8bNhgeZnS4Rk+5nYE8mDU1C:BS/u+R4T5j6QrZnrk+m2UM
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
- Size 18KB
- SHA256 5167ab82a0ed4a0ac10e0142739199e423487815c5e13fe5c0eef55621771732
- MD5 cc2e8df1a03d578b0f4d75fbc6110bb4
- SHA1 5a48053cd62168a99e5bbbe0911a006cd600f913
- SHA512 98370cee197c952a6117dc5bd05dfce94dfc9ad45f3dd198547e4763d120b7886ce20340240bc2973e1f2061d8bfd1f0f3a0234ad797114e16acf3a2866492a3
- SSDEEP 384:dL3HhSfDX6tsydnOealQ9j2BprKsXQbqmZLJt5jOotfxTXq0:VMGsytUyeZXOfL/td60
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jxsnrady.0wh.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\tmpBF1A.tmp
- Size 1KB
- SHA256 283c2f290d631bbe638ffdb8d0dd0ef4fbf7c39a40019bf352ceca387e0c43e7
- MD5 f237efbf5d5abdc51fef2c834d0a2059
- SHA1 933e18d5ccd123167b7ac345d644ae69dc08b956
- SHA512 cad3880815376e2f05b05ff50ff1aa42f0272e3d38cb6d09ecf532efc3a12c8567dd26521a1bc19c07854bdf461aef54989766e284f2810a8f6ca90a38b7d446
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Roaming\ocvVHJnam.exe
- Size 687KB
- SHA256 3b58ece6a12f3fb6798bb73e6109decd2c8901962dc0db9d0cf22a13b87b21b8
- MD5 240ee2a123295e4680ba4b3a33b1a3ac
- SHA1 365cea2ce72f8cf376fa77dc4da66cc9f51860c9
- SHA512 8706e1e19c5feda4ca38f14a38e5ad85b764d7bf4755131556fe30730a9d043815a1a1532d542865bc15086c3a31187fef639a7a70159ef17b64ad6c8bbe8de9
- SSDEEP 12288:0o2iNxeRPAZWuAvUZnvYVmDF1xmmr8lFjZrfmZ8O/OxTB09BBf:0o1b+SWuEBmDrroFj5fO8QYTi9Bx
- MD5 SHA1 SHA512 SSDEEP