Analysis
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max time kernel
69s -
max time network
147s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
01-11-2024 04:48
Static task
static1
Behavioral task
behavioral1
Sample
a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe
Resource
win10v2004-20241007-en
General
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Target
a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe
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Size
603KB
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MD5
adf22eb2587ab26a966c2c9673580a73
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SHA1
a846d4a58ae7b294c1958cc538b5ed103e7445fb
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SHA256
a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30
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SHA512
bde338b7d5d338dba1e8aeb0bcd5e5e390025aec48e4fffe518b194a22fe6aee4cd1db0480e682e85d9d4ac20cc2ab1c4da9fb8fc03b57344145d94390a6ff34
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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 5 IoCs
resource yara_rule behavioral1/memory/2928-18-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2928-25-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2928-24-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2928-23-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2928-20-0x0000000000400000-0x0000000000426000-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.
pid Process 2820 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 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
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe Key opened \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe Key opened \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.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.
flow ioc 4 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2552 set thread context of 2928 2552 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe 33 -
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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2912 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 7 IoCs
pid Process 2552 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe 2552 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe 2552 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe 2552 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe 2928 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe 2820 powershell.exe 2928 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2552 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe Token: SeDebugPrivilege 2928 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe Token: SeDebugPrivilege 2820 powershell.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 2552 wrote to memory of 2820 2552 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe 29 PID 2552 wrote to memory of 2820 2552 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe 29 PID 2552 wrote to memory of 2820 2552 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe 29 PID 2552 wrote to memory of 2820 2552 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe 29 PID 2552 wrote to memory of 2912 2552 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe 31 PID 2552 wrote to memory of 2912 2552 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe 31 PID 2552 wrote to memory of 2912 2552 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe 31 PID 2552 wrote to memory of 2912 2552 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe 31 PID 2552 wrote to memory of 2928 2552 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe 33 PID 2552 wrote to memory of 2928 2552 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe 33 PID 2552 wrote to memory of 2928 2552 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe 33 PID 2552 wrote to memory of 2928 2552 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe 33 PID 2552 wrote to memory of 2928 2552 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe 33 PID 2552 wrote to memory of 2928 2552 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe 33 PID 2552 wrote to memory of 2928 2552 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe 33 PID 2552 wrote to memory of 2928 2552 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe 33 PID 2552 wrote to memory of 2928 2552 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe 33 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe"C:\Users\Admin\AppData\Local\Temp\a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2552 -
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:2820
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RePUtenbQjvc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7742.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2912
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C:\Users\Admin\AppData\Local\Temp\a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.exe"C:\Users\Admin\AppData\Local\Temp\a1777be6284799cc06a9d9072f4f3d2181287fb7770cbd7dbfb5bbd7d031dc30.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:2928
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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
1KB
MD5431eeb2f8dd10322999a808a9c224647
SHA1856152b4fbbe6a5bb743d7105f2ce850ce0f642b
SHA256de8f87c2f1382871fb710a7169d7ec221f0e62d4c3a30e1c8b4abe6e1cd810cd
SHA5124fb2f757d62d6cf0c6d7f117a4d754a9eac01d72997b976897617b2d7fb17730403336b8aa35f7bd9980eec71965c79a6a7ca02d0f45ad7c9544bd0e4604c297