Analysis
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max time kernel
136s -
max time network
141s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
01-11-2024 14:17
Static task
static1
Behavioral task
behavioral1
Sample
malw.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
malw.exe
Resource
win10v2004-20241007-en
General
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Target
malw.exe
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Size
603KB
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MD5
39c7da67656e52cfe66f0fb0a223cdee
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SHA1
3dd0f07f64387e25ebba373ac9557cc7941ded55
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SHA256
a1b4af5ce8cb01ceddb2c9269dafbea2c5c9340e21a916a59b304158110aa4c5
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SHA512
b21d56b7ae71993d7d4456d1fa0f7ce4d90049aedd5d6685da709b8e213aa51388e3f8a7d21e5806d45bf579d96a9eab7a94f3ba2905c8e5f7059c1b5620a4c8
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SSDEEP
12288:woaDPw1Qk89Tmyy8e9vLr78Ly3KzgGUsB/gRZYHdh:gLw9gTFyXjvgy3Kz/UKWqd
Malware Config
Extracted
Protocol: ftp- Host:
50.31.176.103 - Port:
21 - Username:
[email protected] - Password:
HW=f09RQ-BL1
Extracted
snakekeylogger
Protocol: ftp- Host:
ftp://50.31.176.103/ - Port:
21 - Username:
[email protected] - Password:
HW=f09RQ-BL1
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/2988-20-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger -
Snakekeylogger family
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Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
malw.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation malw.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 3 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:
malw.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 malw.exe Key opened \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 malw.exe Key opened \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 malw.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 32 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
malw.exedescription pid process target process PID 208 set thread context of 2988 208 malw.exe malw.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
malw.exepowershell.exeschtasks.exemalw.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language malw.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 malw.exe -
Scheduled Task/Job: Scheduled Task 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:
malw.exepowershell.exemalw.exepid process 208 malw.exe 208 malw.exe 208 malw.exe 208 malw.exe 208 malw.exe 924 powershell.exe 2988 malw.exe 924 powershell.exe 2988 malw.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
malw.exepowershell.exemalw.exedescription pid process Token: SeDebugPrivilege 208 malw.exe Token: SeDebugPrivilege 924 powershell.exe Token: SeDebugPrivilege 2988 malw.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
malw.exedescription pid process target process PID 208 wrote to memory of 924 208 malw.exe powershell.exe PID 208 wrote to memory of 924 208 malw.exe powershell.exe PID 208 wrote to memory of 924 208 malw.exe powershell.exe PID 208 wrote to memory of 2244 208 malw.exe schtasks.exe PID 208 wrote to memory of 2244 208 malw.exe schtasks.exe PID 208 wrote to memory of 2244 208 malw.exe schtasks.exe PID 208 wrote to memory of 2988 208 malw.exe malw.exe PID 208 wrote to memory of 2988 208 malw.exe malw.exe PID 208 wrote to memory of 2988 208 malw.exe malw.exe PID 208 wrote to memory of 2988 208 malw.exe malw.exe PID 208 wrote to memory of 2988 208 malw.exe malw.exe PID 208 wrote to memory of 2988 208 malw.exe malw.exe PID 208 wrote to memory of 2988 208 malw.exe malw.exe PID 208 wrote to memory of 2988 208 malw.exe malw.exe -
outlook_office_path 1 IoCs
Processes:
malw.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 malw.exe -
outlook_win_path 1 IoCs
Processes:
malw.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 malw.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\malw.exe"C:\Users\Admin\AppData\Local\Temp\malw.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
PID:208 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\RePUtenbQjvc.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:924 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RePUtenbQjvc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF2DC.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2244 -
C:\Users\Admin\AppData\Local\Temp\malw.exe"C:\Users\Admin\AppData\Local\Temp\malw.exe"2⤵
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2988
Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
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
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD52ce9d67cd5d943075dffaa1f21eec932
SHA1b536f22bf73fe1a3652fe08f325d25a636472f4a
SHA256a81ed5aa1d9d0f1178a7814fd0d360b0057bc1540469aae2c20b094e14fe159d
SHA51245556228e2c0719b1d31914732b67067a8a76895e0b9cf55a2401787156b3284a53b5a18ffefa7be5961c190104df35031caf58f5abac458759204c2be27767f