Analysis
- max time kernel
120s - max time network
123s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system - submitted
26/03/2023, 16:32
Static task
static1
Behavioral task
behavioral1
Sample
7b510a26d387227f8558a7b05bdb4795.exe
Resource
win7-20230220-en
13 signatures
150 seconds
Behavioral task
behavioral2
Sample
7b510a26d387227f8558a7b05bdb4795.exe
Resource
win10v2004-20230220-en
13 signatures
150 seconds
General
- Target 7b510a26d387227f8558a7b05bdb4795.exe
- Size 2.3MB
- Sample230326-t1ykcabb4x
- SHA256 e99086181ac130803fd5f3443f5485ecb3de67acd2f129f888e6ce1b8a2da20a
- MD5 7b510a26d387227f8558a7b05bdb4795
- SHA1 a5604cd78ad136b78d9393a551da861f5f77cd9b
- SHA512 b2acd9553582df81b27f8fc82091111d3c5108aafc39e433c1bbe2d383beed1a992d59e1c3437affdc14ca28fceed6d829fa781e584baa1598e4abfb49c62079
- SSDEEP 49152:Q59zMNe/Okm8bI3wLYz1tZD1V5NQSrBnbx:+zyaOIbfiZD1V5Nftbx
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
-
snakekeylogger
Credentials
-
Protocol
smtp
-
Host
mail.sienkakupeste.com
-
Port
587
-
Username
-
Password
010203sienka++
-
Email to
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 1 IoCs
resource yara_rule behavioral2/memory/640-134-0x0000000000400000-0x0000000000424000-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-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.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 9 checkip.dyndns.org - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 904 set thread context of 640 904 7b510a26d387227f8558a7b05bdb4795.exe 86 - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 640 RegAsm.exe 640 RegAsm.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 640 RegAsm.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 904 wrote to memory of 640 904 7b510a26d387227f8558a7b05bdb4795.exe 86 PID 904 wrote to memory of 640 904 7b510a26d387227f8558a7b05bdb4795.exe 86 PID 904 wrote to memory of 640 904 7b510a26d387227f8558a7b05bdb4795.exe 86 PID 904 wrote to memory of 640 904 7b510a26d387227f8558a7b05bdb4795.exe 86 PID 904 wrote to memory of 640 904 7b510a26d387227f8558a7b05bdb4795.exe 86 PID 904 wrote to memory of 640 904 7b510a26d387227f8558a7b05bdb4795.exe 86 PID 904 wrote to memory of 640 904 7b510a26d387227f8558a7b05bdb4795.exe 86 PID 904 wrote to memory of 640 904 7b510a26d387227f8558a7b05bdb4795.exe 86 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\7b510a26d387227f8558a7b05bdb4795.exe"C:\Users\Admin\AppData\Local\Temp\7b510a26d387227f8558a7b05bdb4795.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:904 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\RegAsm.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:640
-