Analysis
-
max time kernel
18s -
max time network
116s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
16-01-2021 07:15
Static task
static1
Behavioral task
behavioral1
Sample
3fd303be0f23b8596d510f95e96e02b3.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
3fd303be0f23b8596d510f95e96e02b3.exe
Resource
win10v20201028
General
-
Target
3fd303be0f23b8596d510f95e96e02b3.exe
-
Size
990KB
-
MD5
3fd303be0f23b8596d510f95e96e02b3
-
SHA1
6cf4524e46a69776155bbae6758204917816162d
-
SHA256
1847327e13d888bcde4766455cb421f130dc7e16d616bffb7681aa302d3f3800
-
SHA512
9520405bfb62bdb5f33b6df1842cada77b45e4329fb35d0ba37f71db7947dce9fd1514010d62c821deb27383ef8346929bce75d0a5f7f333610ffc5c400c6493
Malware Config
Extracted
Protocol: smtp- Host:
pro40.emailserver.vn - Port:
587 - Username:
[email protected] - Password:
Vexa@2013
Signatures
-
Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
-
Snake Keylogger Payload 4 IoCs
Processes:
resource yara_rule behavioral1/memory/1384-4-0x0000000000400000-0x000000000047A000-memory.dmp family_snakekeylogger behavioral1/memory/1384-5-0x000000000040188B-mapping.dmp family_snakekeylogger behavioral1/memory/1384-7-0x0000000000400000-0x000000000047A000-memory.dmp family_snakekeylogger behavioral1/memory/1384-10-0x0000000000940000-0x00000000009A4000-memory.dmp family_snakekeylogger -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
-
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 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 5 checkip.dyndns.org 10 freegeoip.app 11 freegeoip.app -
Suspicious use of SetThreadContext 1 IoCs
Processes:
3fd303be0f23b8596d510f95e96e02b3.exedescription pid process target process PID 1936 set thread context of 1384 1936 3fd303be0f23b8596d510f95e96e02b3.exe 3fd303be0f23b8596d510f95e96e02b3.exe -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
-
Processes:
3fd303be0f23b8596d510f95e96e02b3.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436 3fd303be0f23b8596d510f95e96e02b3.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436\Blob = 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 3fd303be0f23b8596d510f95e96e02b3.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
3fd303be0f23b8596d510f95e96e02b3.exepid process 1384 3fd303be0f23b8596d510f95e96e02b3.exe 1384 3fd303be0f23b8596d510f95e96e02b3.exe 1384 3fd303be0f23b8596d510f95e96e02b3.exe 1384 3fd303be0f23b8596d510f95e96e02b3.exe 1384 3fd303be0f23b8596d510f95e96e02b3.exe 1384 3fd303be0f23b8596d510f95e96e02b3.exe 1384 3fd303be0f23b8596d510f95e96e02b3.exe 1384 3fd303be0f23b8596d510f95e96e02b3.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
3fd303be0f23b8596d510f95e96e02b3.exepid process 1936 3fd303be0f23b8596d510f95e96e02b3.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
3fd303be0f23b8596d510f95e96e02b3.exedescription pid process Token: SeDebugPrivilege 1384 3fd303be0f23b8596d510f95e96e02b3.exe -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
3fd303be0f23b8596d510f95e96e02b3.execmd.exedescription pid process target process PID 1936 wrote to memory of 888 1936 3fd303be0f23b8596d510f95e96e02b3.exe cmd.exe PID 1936 wrote to memory of 888 1936 3fd303be0f23b8596d510f95e96e02b3.exe cmd.exe PID 1936 wrote to memory of 888 1936 3fd303be0f23b8596d510f95e96e02b3.exe cmd.exe PID 1936 wrote to memory of 888 1936 3fd303be0f23b8596d510f95e96e02b3.exe cmd.exe PID 1936 wrote to memory of 1384 1936 3fd303be0f23b8596d510f95e96e02b3.exe 3fd303be0f23b8596d510f95e96e02b3.exe PID 1936 wrote to memory of 1384 1936 3fd303be0f23b8596d510f95e96e02b3.exe 3fd303be0f23b8596d510f95e96e02b3.exe PID 1936 wrote to memory of 1384 1936 3fd303be0f23b8596d510f95e96e02b3.exe 3fd303be0f23b8596d510f95e96e02b3.exe PID 1936 wrote to memory of 1384 1936 3fd303be0f23b8596d510f95e96e02b3.exe 3fd303be0f23b8596d510f95e96e02b3.exe PID 888 wrote to memory of 1488 888 cmd.exe schtasks.exe PID 888 wrote to memory of 1488 888 cmd.exe schtasks.exe PID 888 wrote to memory of 1488 888 cmd.exe schtasks.exe PID 888 wrote to memory of 1488 888 cmd.exe schtasks.exe PID 1936 wrote to memory of 1384 1936 3fd303be0f23b8596d510f95e96e02b3.exe 3fd303be0f23b8596d510f95e96e02b3.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\3fd303be0f23b8596d510f95e96e02b3.exe"C:\Users\Admin\AppData\Local\Temp\3fd303be0f23b8596d510f95e96e02b3.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.execmd /c schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\da5126c2c3394fcb8998a3506f4dbfc0.xml"2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exeschtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\da5126c2c3394fcb8998a3506f4dbfc0.xml"3⤵
- Creates scheduled task(s)
-
C:\Users\Admin\AppData\Local\Temp\3fd303be0f23b8596d510f95e96e02b3.exe"C:\Users\Admin\AppData\Local\Temp\3fd303be0f23b8596d510f95e96e02b3.exe"2⤵
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\da5126c2c3394fcb8998a3506f4dbfc0.xmlMD5
a035055e1c80bc652520df45650c690f
SHA137b8364ad46e17199eb5a7ee89bb506bba384adb
SHA2562b9948d34674d0fc0f9cb290da8298441b56205f6e341e3cfa1954df42c2b655
SHA512678279d1bfc8a71c27a5a2c3afa5fd266882a62610863a3e4ebc2489f17827ed4c680c89e6b8b52621320500294d2df9888259ccdc5d38def43e739c1f325fc1
-
memory/888-2-0x0000000000000000-mapping.dmp
-
memory/1384-4-0x0000000000400000-0x000000000047A000-memory.dmpFilesize
488KB
-
memory/1384-5-0x000000000040188B-mapping.dmp
-
memory/1384-7-0x0000000000400000-0x000000000047A000-memory.dmpFilesize
488KB
-
memory/1384-9-0x0000000073C20000-0x000000007430E000-memory.dmpFilesize
6.9MB
-
memory/1384-10-0x0000000000940000-0x00000000009A4000-memory.dmpFilesize
400KB
-
memory/1488-3-0x0000000000000000-mapping.dmp