Analysis
- max time kernel
123s - max time network
138s - platform
windows10-2004_x64 - resource
win10v2004-20240730-en - resource tags
- submitted
31/07/2024, 11:14
General
- Target DOCUMENTS.exe
- Size 585KB
- Sample240731-nbzhfsvckf
- SHA256 ec0cb53f3f7dd573b6449bed509234445870faabe3134f554f48ac150ae99de2
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.merrtaxi.com
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Port
587
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Username
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Password
Erdit2018
Extracted
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snakekeylogger
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Protocol
smtp
-
Host
mail.merrtaxi.com
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Port
587
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Username
-
Password
Erdit2018
-
Email to
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 1 IoCs
- Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
- 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.
- Disables RegEdit via registry modification 1 IoCs
- Disables Task Manager via registry modification
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 6 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Modifies registry key 1 TTPs 1 IoCs
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 12 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 23 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\DOCUMENTS.exe"C:\Users\Admin\AppData\Local\Temp\DOCUMENTS.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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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\Local\Temp\DOCUMENTS.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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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\ikAiRdXbqFj.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ikAiRdXbqFj" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF750.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- 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
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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
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
StartupProfileData-NonInteractive
__PSScriptPolicyTest_c2nnbpgp.ahk.ps1
tmpF750.tmp
memory/3284-78-0x00000000076B0000-0x00000000076BE000-memory.dmp
memory/3284-17-0x0000000074680000-0x0000000074E30000-memory.dmp
memory/3284-80-0x00000000077C0000-0x00000000077DA000-memory.dmp
memory/3284-48-0x0000000006160000-0x000000000617E000-memory.dmp
memory/3284-77-0x0000000007680000-0x0000000007691000-memory.dmp
memory/3284-76-0x0000000007700000-0x0000000007796000-memory.dmp
memory/3284-74-0x0000000007480000-0x000000000749A000-memory.dmp
memory/3284-14-0x0000000002850000-0x0000000002886000-memory.dmp
memory/3284-73-0x0000000007AD0000-0x000000000814A000-memory.dmp
memory/3284-16-0x0000000074680000-0x0000000074E30000-memory.dmp
memory/3284-18-0x0000000074680000-0x0000000074E30000-memory.dmp
memory/3284-85-0x0000000074680000-0x0000000074E30000-memory.dmp
memory/3284-19-0x00000000059C0000-0x00000000059E2000-memory.dmp
memory/3284-72-0x0000000007350000-0x00000000073F3000-memory.dmp
memory/3284-23-0x0000000005AD0000-0x0000000005B36000-memory.dmp
memory/3284-49-0x00000000061F0000-0x000000000623C000-memory.dmp
memory/3284-34-0x0000000005B40000-0x0000000005E94000-memory.dmp
memory/3284-21-0x0000000005A60000-0x0000000005AC6000-memory.dmp
memory/3284-71-0x00000000072E0000-0x00000000072FE000-memory.dmp
memory/3284-61-0x0000000070D10000-0x0000000070D5C000-memory.dmp
memory/3492-88-0x00000000067B0000-0x0000000006972000-memory.dmp
memory/3492-45-0x0000000000400000-0x0000000000426000-memory.dmp
memory/3492-87-0x0000000006590000-0x00000000065E0000-memory.dmp
memory/4384-33-0x000000007468E000-0x000000007468F000-memory.dmp
memory/4384-4-0x0000000004E20000-0x0000000004E2A000-memory.dmp
memory/4384-0-0x000000007468E000-0x000000007468F000-memory.dmp
memory/4384-1-0x00000000002E0000-0x0000000000372000-memory.dmp
memory/4384-2-0x0000000005210000-0x00000000057B4000-memory.dmp
memory/4384-3-0x0000000004D60000-0x0000000004DF2000-memory.dmp
memory/4384-47-0x0000000074680000-0x0000000074E30000-memory.dmp
memory/4384-5-0x0000000074680000-0x0000000074E30000-memory.dmp
memory/4384-9-0x0000000008780000-0x000000000881C000-memory.dmp
memory/4384-6-0x0000000005000000-0x0000000005016000-memory.dmp
memory/4384-8-0x0000000005FC0000-0x0000000006028000-memory.dmp
memory/4384-7-0x00000000051D0000-0x00000000051DE000-memory.dmp
memory/4964-75-0x0000000007580000-0x000000000758A000-memory.dmp
memory/4964-79-0x0000000007750000-0x0000000007764000-memory.dmp
memory/4964-15-0x0000000005340000-0x0000000005968000-memory.dmp
memory/4964-81-0x0000000007830000-0x0000000007838000-memory.dmp
memory/4964-20-0x0000000074680000-0x0000000074E30000-memory.dmp
memory/4964-50-0x0000000007170000-0x00000000071A2000-memory.dmp
memory/4964-86-0x0000000074680000-0x0000000074E30000-memory.dmp
memory/4964-51-0x0000000070D10000-0x0000000070D5C000-memory.dmp
memory/4964-35-0x0000000074680000-0x0000000074E30000-memory.dmp