Analysis
- max time kernel
50s - max time network
153s - platform
windows7_x64 - resource
win7-20220901-en - resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system - submitted
24/01/2023, 16:47
Static task
static1
Behavioral task
behavioral1
Sample
c4b42227d195c3bc6a36bf0e2e1b76b6.exe
Resource
win7-20220901-en
13 signatures
150 seconds
Behavioral task
behavioral2
Sample
c4b42227d195c3bc6a36bf0e2e1b76b6.exe
Resource
win10v2004-20220812-en
13 signatures
150 seconds
General
- Target c4b42227d195c3bc6a36bf0e2e1b76b6.exe
- Size 662KB
- Sample230124-vah8eaec6x
- SHA256 5bbeb09102c0876fc3d18a31c5aefdfc6f42a4354422611bfefedba2d51da208
- MD5 c4b42227d195c3bc6a36bf0e2e1b76b6
- SHA1 9b55771236ca4a5d56b0ea166225ac4f7fa8eae3
- SHA512 c5147e8ea017ef8587e7736d1ab64b9adc3e580519f4b8d88b5728436e514e9b38a9a61fa3ec2c82394820ef9b13e250da9c16c7898994749795a49fbdf3b99b
- SSDEEP 12288:8K8MtEwcU3gZ+GQzjkATGdsat8o12i+VThOxja80f8x3AmOar:8F6AAgZbQzlGVvlIhO9Wkx3AmOU
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
-
snakekeylogger
Credentials
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
doDHyw%0
-
Email to
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 6 IoCs
resource yara_rule behavioral1/memory/472-63-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/472-65-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/472-66-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/472-67-0x000000000042019E-mapping.dmp family_snakekeylogger behavioral1/memory/472-69-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/472-71-0x0000000000400000-0x0000000000426000-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.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 c4b42227d195c3bc6a36bf0e2e1b76b6.exe Key opened \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 c4b42227d195c3bc6a36bf0e2e1b76b6.exe Key opened \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 c4b42227d195c3bc6a36bf0e2e1b76b6.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 2028 set thread context of 472 2028 c4b42227d195c3bc6a36bf0e2e1b76b6.exe 27 - Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 472 c4b42227d195c3bc6a36bf0e2e1b76b6.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 472 c4b42227d195c3bc6a36bf0e2e1b76b6.exe - Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2028 wrote to memory of 472 2028 c4b42227d195c3bc6a36bf0e2e1b76b6.exe 27 PID 2028 wrote to memory of 472 2028 c4b42227d195c3bc6a36bf0e2e1b76b6.exe 27 PID 2028 wrote to memory of 472 2028 c4b42227d195c3bc6a36bf0e2e1b76b6.exe 27 PID 2028 wrote to memory of 472 2028 c4b42227d195c3bc6a36bf0e2e1b76b6.exe 27 PID 2028 wrote to memory of 472 2028 c4b42227d195c3bc6a36bf0e2e1b76b6.exe 27 PID 2028 wrote to memory of 472 2028 c4b42227d195c3bc6a36bf0e2e1b76b6.exe 27 PID 2028 wrote to memory of 472 2028 c4b42227d195c3bc6a36bf0e2e1b76b6.exe 27 PID 2028 wrote to memory of 472 2028 c4b42227d195c3bc6a36bf0e2e1b76b6.exe 27 PID 2028 wrote to memory of 472 2028 c4b42227d195c3bc6a36bf0e2e1b76b6.exe 27 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 c4b42227d195c3bc6a36bf0e2e1b76b6.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 c4b42227d195c3bc6a36bf0e2e1b76b6.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\c4b42227d195c3bc6a36bf0e2e1b76b6.exe"C:\Users\Admin\AppData\Local\Temp\c4b42227d195c3bc6a36bf0e2e1b76b6.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2028 -
C:\Users\Admin\AppData\Local\Temp\c4b42227d195c3bc6a36bf0e2e1b76b6.exe"C:\Users\Admin\AppData\Local\Temp\c4b42227d195c3bc6a36bf0e2e1b76b6.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:472
-