Analysis
-
max time kernel
54s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
30-09-2022 12:23
Static task
static1
Behavioral task
behavioral1
Sample
tmp.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
tmp.exe
Resource
win10v2004-20220901-en
General
-
Target
tmp.exe
-
Size
710KB
-
MD5
0bcea97bbf8109cb95c4483a60bcf3f8
-
SHA1
4c52328289dc823cf96c3f99849e4bfc42ee1131
-
SHA256
bc7b775cfbdc68e4c1c023ec0568e9c301f95fb531a55acda10cbbc312a393eb
-
SHA512
21a1dccc8e1d4ce12da5b73b205e0df4c81a7dd7286ed019fc5ae0d1ca37359dfd660bfb955ff0cb44eec0acc127ef30654051b6c9c11ea9e7fe9751f4ebb060
-
SSDEEP
12288:C+eBtaxy4sevTjgxSPUNkxjZ5gWI+p3c:3E4xjscTa7ojgb+Zc
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
us2.smtp.mailhostbox.com - Port:
587 - Username:
[email protected] - Password:
Chelseamel@22 - Email To:
[email protected]
Signatures
-
Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
-
Snake Keylogger payload 6 IoCs
Processes:
resource yara_rule behavioral1/memory/552-63-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/552-65-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/552-66-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/552-67-0x00000000004201BE-mapping.dmp family_snakekeylogger behavioral1/memory/552-69-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/552-71-0x0000000000400000-0x0000000000426000-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
Processes:
tmp.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 tmp.exe Key opened \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 tmp.exe Key opened \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 tmp.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.
Processes:
flow ioc 4 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
tmp.exedescription pid process target process PID 860 set thread context of 552 860 tmp.exe tmp.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
tmp.exepid process 552 tmp.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
tmp.exedescription pid process Token: SeDebugPrivilege 552 tmp.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
tmp.exedescription pid process target process PID 860 wrote to memory of 552 860 tmp.exe tmp.exe PID 860 wrote to memory of 552 860 tmp.exe tmp.exe PID 860 wrote to memory of 552 860 tmp.exe tmp.exe PID 860 wrote to memory of 552 860 tmp.exe tmp.exe PID 860 wrote to memory of 552 860 tmp.exe tmp.exe PID 860 wrote to memory of 552 860 tmp.exe tmp.exe PID 860 wrote to memory of 552 860 tmp.exe tmp.exe PID 860 wrote to memory of 552 860 tmp.exe tmp.exe PID 860 wrote to memory of 552 860 tmp.exe tmp.exe -
outlook_office_path 1 IoCs
Processes:
tmp.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 tmp.exe -
outlook_win_path 1 IoCs
Processes:
tmp.exedescription 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 tmp.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:860 -
C:\Users\Admin\AppData\Local\Temp\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:552