Analysis
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max time kernel
158s -
max time network
159s -
platform
windows10-2004_x64 -
resource
win10v2004-20231023-en -
resource tags
arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system -
submitted
23-10-2023 17:56
Static task
static1
Behavioral task
behavioral1
Sample
NEAS.b423c0f05afa1b0e32ba18a552ac0d4020bb69a055602c94323d5bbd4c9cefa8exe_JC.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
NEAS.b423c0f05afa1b0e32ba18a552ac0d4020bb69a055602c94323d5bbd4c9cefa8exe_JC.exe
Resource
win10v2004-20231023-en
General
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Target
NEAS.b423c0f05afa1b0e32ba18a552ac0d4020bb69a055602c94323d5bbd4c9cefa8exe_JC.exe
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Size
366KB
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MD5
1a691869fcecce8373212a390d1fa3e3
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SHA1
a952c873d4b825940b012e2d0ceb849dd9634d64
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SHA256
b423c0f05afa1b0e32ba18a552ac0d4020bb69a055602c94323d5bbd4c9cefa8
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SHA512
6bcac7d3fd19a60fb7c6a52d67cc0a6d8f7684f0a2fa428647a0cc1a03fb2d25c9a0b75b215de432df81113e951c2442ec1b793c93e68f6b99ae6ef7ba62fe5e
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SSDEEP
6144:L0nJBIKD2SJMz2dR8rZNlvzbV+dHhZdZcZmPaFTPM+OAHhBMdk6ceh9X3P9t0G:sJfD2S+nRbV+dHhZdZcZm2TPZHhBak6I
Malware Config
Extracted
snakekeylogger
https://api.telegram.org/bot6243209595:AAGECSmdSqJiVZcdFoBvotoaKcKT9Lz5Gvw/sendMessage?chat_id=1070926352
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/588-9-0x0000000000400000-0x0000000000424000-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.
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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-1-5-21-3125601242-331447593-1512828465-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-3125601242-331447593-1512828465-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-3125601242-331447593-1512828465-1000\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 23 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
NEAS.b423c0f05afa1b0e32ba18a552ac0d4020bb69a055602c94323d5bbd4c9cefa8exe_JC.exedescription pid process target process PID 4816 set thread context of 588 4816 NEAS.b423c0f05afa1b0e32ba18a552ac0d4020bb69a055602c94323d5bbd4c9cefa8exe_JC.exe RegAsm.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
RegAsm.exepid process 588 RegAsm.exe 588 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
RegAsm.exedescription pid process Token: SeDebugPrivilege 588 RegAsm.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
NEAS.b423c0f05afa1b0e32ba18a552ac0d4020bb69a055602c94323d5bbd4c9cefa8exe_JC.exedescription pid process target process PID 4816 wrote to memory of 588 4816 NEAS.b423c0f05afa1b0e32ba18a552ac0d4020bb69a055602c94323d5bbd4c9cefa8exe_JC.exe RegAsm.exe PID 4816 wrote to memory of 588 4816 NEAS.b423c0f05afa1b0e32ba18a552ac0d4020bb69a055602c94323d5bbd4c9cefa8exe_JC.exe RegAsm.exe PID 4816 wrote to memory of 588 4816 NEAS.b423c0f05afa1b0e32ba18a552ac0d4020bb69a055602c94323d5bbd4c9cefa8exe_JC.exe RegAsm.exe PID 4816 wrote to memory of 588 4816 NEAS.b423c0f05afa1b0e32ba18a552ac0d4020bb69a055602c94323d5bbd4c9cefa8exe_JC.exe RegAsm.exe PID 4816 wrote to memory of 588 4816 NEAS.b423c0f05afa1b0e32ba18a552ac0d4020bb69a055602c94323d5bbd4c9cefa8exe_JC.exe RegAsm.exe PID 4816 wrote to memory of 588 4816 NEAS.b423c0f05afa1b0e32ba18a552ac0d4020bb69a055602c94323d5bbd4c9cefa8exe_JC.exe RegAsm.exe PID 4816 wrote to memory of 588 4816 NEAS.b423c0f05afa1b0e32ba18a552ac0d4020bb69a055602c94323d5bbd4c9cefa8exe_JC.exe RegAsm.exe PID 4816 wrote to memory of 588 4816 NEAS.b423c0f05afa1b0e32ba18a552ac0d4020bb69a055602c94323d5bbd4c9cefa8exe_JC.exe RegAsm.exe -
outlook_office_path 1 IoCs
Processes:
RegAsm.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3125601242-331447593-1512828465-1000\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-1-5-21-3125601242-331447593-1512828465-1000\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.b423c0f05afa1b0e32ba18a552ac0d4020bb69a055602c94323d5bbd4c9cefa8exe_JC.exe"C:\Users\Admin\AppData\Local\Temp\NEAS.b423c0f05afa1b0e32ba18a552ac0d4020bb69a055602c94323d5bbd4c9cefa8exe_JC.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4816 -
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:588