Analysis
- max time kernel
142s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-20231023-en - resource tags
arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system - submitted
27/10/2023, 02:44
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
b88bee1afe7b8d9a9eb11c6293e552e0c4e91eef2bc3fe8984d65216f566a59c.exe
Resource
win7-20231023-en
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
b88bee1afe7b8d9a9eb11c6293e552e0c4e91eef2bc3fe8984d65216f566a59c.exe
Resource
win10v2004-20231023-en
12 signatures
150 seconds
General
- Target b88bee1afe7b8d9a9eb11c6293e552e0c4e91eef2bc3fe8984d65216f566a59c.exe
- Size 421KB
- Sample231027-c76e4abe4z
- SHA256 b88bee1afe7b8d9a9eb11c6293e552e0c4e91eef2bc3fe8984d65216f566a59c
- MD5 e2de701be7d14bfd5b55b58a992313d5
- SHA1 ccd64813a765cc3a6604c5981d6921461bbe8386
- SHA512 0613bf19c4c8af13e2c0c08020f64c62f89eb000ed4eec3040dd58b24ad2cdef942e36ec3b602835120350b2c3c79d02178bdd38dfd22f555ed90c563e4ec2f0
- SSDEEP 12288:4uYF8hfn63OTIZEp2FjiOnKHMQhqL35bgaG:4uXfn6BBFjiOnKHMQhqLLG
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
-
snakekeylogger
Credentials
-
Protocol
smtp
-
Host
mail.alualuminium.com.my
-
Port
587
-
Username
-
Password
U8G4S13#8Zk$
-
Email to
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 1 IoCs
resource yara_rule behavioral2/memory/1052-9-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger - 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-1-5-21-1114462139-3090196418-29517368-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-1114462139-3090196418-29517368-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-1114462139-3090196418-29517368-1000\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 40 checkip.dyndns.org - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1828 set thread context of 1052 1828 b88bee1afe7b8d9a9eb11c6293e552e0c4e91eef2bc3fe8984d65216f566a59c.exe 92 - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1052 RegAsm.exe 1052 RegAsm.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1052 RegAsm.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1828 wrote to memory of 1052 1828 b88bee1afe7b8d9a9eb11c6293e552e0c4e91eef2bc3fe8984d65216f566a59c.exe 92 PID 1828 wrote to memory of 1052 1828 b88bee1afe7b8d9a9eb11c6293e552e0c4e91eef2bc3fe8984d65216f566a59c.exe 92 PID 1828 wrote to memory of 1052 1828 b88bee1afe7b8d9a9eb11c6293e552e0c4e91eef2bc3fe8984d65216f566a59c.exe 92 PID 1828 wrote to memory of 1052 1828 b88bee1afe7b8d9a9eb11c6293e552e0c4e91eef2bc3fe8984d65216f566a59c.exe 92 PID 1828 wrote to memory of 1052 1828 b88bee1afe7b8d9a9eb11c6293e552e0c4e91eef2bc3fe8984d65216f566a59c.exe 92 PID 1828 wrote to memory of 1052 1828 b88bee1afe7b8d9a9eb11c6293e552e0c4e91eef2bc3fe8984d65216f566a59c.exe 92 PID 1828 wrote to memory of 1052 1828 b88bee1afe7b8d9a9eb11c6293e552e0c4e91eef2bc3fe8984d65216f566a59c.exe 92 PID 1828 wrote to memory of 1052 1828 b88bee1afe7b8d9a9eb11c6293e552e0c4e91eef2bc3fe8984d65216f566a59c.exe 92 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1114462139-3090196418-29517368-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1114462139-3090196418-29517368-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\b88bee1afe7b8d9a9eb11c6293e552e0c4e91eef2bc3fe8984d65216f566a59c.exe"C:\Users\Admin\AppData\Local\Temp\b88bee1afe7b8d9a9eb11c6293e552e0c4e91eef2bc3fe8984d65216f566a59c.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1828 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1052
-