Analysis
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max time kernel
119s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20231020-en -
resource tags
arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system -
submitted
14-11-2023 08:39
Static task
static1
Behavioral task
behavioral1
Sample
NEAS.4004dee4dd9f342596495d060e726a3c9d95829ce7b29d90424f784e33c9299f.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
NEAS.4004dee4dd9f342596495d060e726a3c9d95829ce7b29d90424f784e33c9299f.exe
Resource
win10v2004-20231023-en
General
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Target
NEAS.4004dee4dd9f342596495d060e726a3c9d95829ce7b29d90424f784e33c9299f.exe
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Size
367KB
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MD5
0418579cab50e417f1ae9a29da073c03
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SHA1
6a5c928ea373e31b8777b9e7285c2bf52572b997
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SHA256
4004dee4dd9f342596495d060e726a3c9d95829ce7b29d90424f784e33c9299f
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SHA512
4a1fbbdc88698ca140172d58b31489df5083a9dc1935a3a794ac72f13c1abb9b420128319c391dfdba7021681e9b0ab21cfff3e4d5efcfc21e00df4d11a08cd1
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SSDEEP
6144:yAY8QgjLhyvPZQB0isNjGgbMmN8dgsg32Kvnz0PnjDvJxuL:BbFifLudg9rv0nbuL
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
mail.alualuminium.com.my - Port:
587 - Username:
[email protected] - Password:
U8G4S13#8Zk$ - Email To:
[email protected]
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 5 IoCs
Processes:
resource yara_rule behavioral1/memory/2876-7-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/2876-8-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/2876-11-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/2876-14-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/2876-16-0x0000000000400000-0x0000000000424000-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.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
RegAsm.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000\Software\Microsoft\Office\16.0\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.
Processes:
flow ioc 2 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
NEAS.4004dee4dd9f342596495d060e726a3c9d95829ce7b29d90424f784e33c9299f.exedescription pid process target process PID 1392 set thread context of 2876 1392 NEAS.4004dee4dd9f342596495d060e726a3c9d95829ce7b29d90424f784e33c9299f.exe RegAsm.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
RegAsm.exepid process 2876 RegAsm.exe 2876 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
RegAsm.exedescription pid process Token: SeDebugPrivilege 2876 RegAsm.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
NEAS.4004dee4dd9f342596495d060e726a3c9d95829ce7b29d90424f784e33c9299f.exedescription pid process target process PID 1392 wrote to memory of 2876 1392 NEAS.4004dee4dd9f342596495d060e726a3c9d95829ce7b29d90424f784e33c9299f.exe RegAsm.exe PID 1392 wrote to memory of 2876 1392 NEAS.4004dee4dd9f342596495d060e726a3c9d95829ce7b29d90424f784e33c9299f.exe RegAsm.exe PID 1392 wrote to memory of 2876 1392 NEAS.4004dee4dd9f342596495d060e726a3c9d95829ce7b29d90424f784e33c9299f.exe RegAsm.exe PID 1392 wrote to memory of 2876 1392 NEAS.4004dee4dd9f342596495d060e726a3c9d95829ce7b29d90424f784e33c9299f.exe RegAsm.exe PID 1392 wrote to memory of 2876 1392 NEAS.4004dee4dd9f342596495d060e726a3c9d95829ce7b29d90424f784e33c9299f.exe RegAsm.exe PID 1392 wrote to memory of 2876 1392 NEAS.4004dee4dd9f342596495d060e726a3c9d95829ce7b29d90424f784e33c9299f.exe RegAsm.exe PID 1392 wrote to memory of 2876 1392 NEAS.4004dee4dd9f342596495d060e726a3c9d95829ce7b29d90424f784e33c9299f.exe RegAsm.exe PID 1392 wrote to memory of 2876 1392 NEAS.4004dee4dd9f342596495d060e726a3c9d95829ce7b29d90424f784e33c9299f.exe RegAsm.exe PID 1392 wrote to memory of 2876 1392 NEAS.4004dee4dd9f342596495d060e726a3c9d95829ce7b29d90424f784e33c9299f.exe RegAsm.exe PID 1392 wrote to memory of 2876 1392 NEAS.4004dee4dd9f342596495d060e726a3c9d95829ce7b29d90424f784e33c9299f.exe RegAsm.exe PID 1392 wrote to memory of 2876 1392 NEAS.4004dee4dd9f342596495d060e726a3c9d95829ce7b29d90424f784e33c9299f.exe RegAsm.exe PID 1392 wrote to memory of 2876 1392 NEAS.4004dee4dd9f342596495d060e726a3c9d95829ce7b29d90424f784e33c9299f.exe RegAsm.exe -
outlook_office_path 1 IoCs
Processes:
RegAsm.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe -
outlook_win_path 1 IoCs
Processes:
RegAsm.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\NEAS.4004dee4dd9f342596495d060e726a3c9d95829ce7b29d90424f784e33c9299f.exe"C:\Users\Admin\AppData\Local\Temp\NEAS.4004dee4dd9f342596495d060e726a3c9d95829ce7b29d90424f784e33c9299f.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1392 -
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:2876