Analysis
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max time kernel
122s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20231020-en -
resource tags
arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system -
submitted
06-11-2023 09:16
Static task
static1
Behavioral task
behavioral1
Sample
110223.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
110223.exe
Resource
win10v2004-20231023-en
General
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Target
110223.exe
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Size
349KB
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MD5
0f3e1e309ee9dae28670d40e495566c1
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SHA1
869988a2a32e1d83425fcf4b9ccc946368ac4768
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SHA256
0dc8b4659b84d8d9b96e544279da980b36301253912a043b5e48c9bd7bb6e09f
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SHA512
e25017d98af6bd527d200fcc5b0077c33b6610cfecbff68312abba21b0e0ab3dea208dd37de73705ba3210bf76cc1fd4148c943e9a64bbc05b16b8a099ff6dd9
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SSDEEP
6144:t7s78K51VhaZ0zc9in+ZExwHNnIjKlMstZvF9w8kZelBs27dU:i8mhaqzkcxW0KmsXtTgelBs27m
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/2440-8-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/2440-9-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/2440-12-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/2440-14-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/2440-17-0x0000000000400000-0x0000000000424000-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-1-5-21-2952504676-3105837840-1406404655-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-2952504676-3105837840-1406404655-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-2952504676-3105837840-1406404655-1000\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:
110223.exedescription pid process target process PID 2092 set thread context of 2440 2092 110223.exe RegAsm.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
RegAsm.exepid process 2440 RegAsm.exe 2440 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
RegAsm.exedescription pid process Token: SeDebugPrivilege 2440 RegAsm.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
110223.exedescription pid process target process PID 2092 wrote to memory of 2440 2092 110223.exe RegAsm.exe PID 2092 wrote to memory of 2440 2092 110223.exe RegAsm.exe PID 2092 wrote to memory of 2440 2092 110223.exe RegAsm.exe PID 2092 wrote to memory of 2440 2092 110223.exe RegAsm.exe PID 2092 wrote to memory of 2440 2092 110223.exe RegAsm.exe PID 2092 wrote to memory of 2440 2092 110223.exe RegAsm.exe PID 2092 wrote to memory of 2440 2092 110223.exe RegAsm.exe PID 2092 wrote to memory of 2440 2092 110223.exe RegAsm.exe PID 2092 wrote to memory of 2440 2092 110223.exe RegAsm.exe PID 2092 wrote to memory of 2440 2092 110223.exe RegAsm.exe PID 2092 wrote to memory of 2440 2092 110223.exe RegAsm.exe PID 2092 wrote to memory of 2440 2092 110223.exe RegAsm.exe -
outlook_office_path 1 IoCs
Processes:
RegAsm.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2952504676-3105837840-1406404655-1000\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-1-5-21-2952504676-3105837840-1406404655-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\110223.exe"C:\Users\Admin\AppData\Local\Temp\110223.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2092 -
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:2440