Analysis
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max time kernel
120s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
31-12-2023 13:21
Static task
static1
Behavioral task
behavioral1
Sample
37c89d3724f91814329d61e35ff28890.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
37c89d3724f91814329d61e35ff28890.exe
Resource
win10v2004-20231215-en
General
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Target
37c89d3724f91814329d61e35ff28890.exe
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Size
646KB
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MD5
37c89d3724f91814329d61e35ff28890
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SHA1
7413a14f623d9cb5107b35a01d51fe3d3917efc5
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SHA256
dcc5c6710896d51cc8f5aafbdbe0416e6dcd35fabfb5d3d33610d62ae1fc6545
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SHA512
8bf506853c91f8ed2c78cfa3af12ec6386f1040fb3e256857f9c16d33a20f7acd340da17ba095a3d459f5ec1c65d65e9642aea41639118f930d5216b0135d247
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SSDEEP
12288:xr3PU9XPU9quaSI+BRjGOsBgo0q4wM0JQIdeOrysQOMcvTTanf+yIjVjg:xrzjGOsBgo0q4wM0JQYrypOp62ySVj
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
mail.ekonaz.com - Port:
587 - Username:
[email protected] - Password:
251925
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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CustAttr .NET packer 1 IoCs
Detects CustAttr .NET packer in memory.
resource yara_rule behavioral1/memory/3052-3-0x0000000000550000-0x0000000000562000-memory.dmp CustAttr -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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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
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 37c89d3724f91814329d61e35ff28890.exe Key opened \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 37c89d3724f91814329d61e35ff28890.exe Key opened \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 37c89d3724f91814329d61e35ff28890.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 2 checkip.dyndns.org 4 freegeoip.app 5 freegeoip.app -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3052 set thread context of 2128 3052 37c89d3724f91814329d61e35ff28890.exe 30 -
Program crash 1 IoCs
pid pid_target Process procid_target 2912 2128 WerFault.exe 30 -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2128 37c89d3724f91814329d61e35ff28890.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2128 37c89d3724f91814329d61e35ff28890.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 3052 wrote to memory of 2128 3052 37c89d3724f91814329d61e35ff28890.exe 30 PID 3052 wrote to memory of 2128 3052 37c89d3724f91814329d61e35ff28890.exe 30 PID 3052 wrote to memory of 2128 3052 37c89d3724f91814329d61e35ff28890.exe 30 PID 3052 wrote to memory of 2128 3052 37c89d3724f91814329d61e35ff28890.exe 30 PID 3052 wrote to memory of 2128 3052 37c89d3724f91814329d61e35ff28890.exe 30 PID 3052 wrote to memory of 2128 3052 37c89d3724f91814329d61e35ff28890.exe 30 PID 3052 wrote to memory of 2128 3052 37c89d3724f91814329d61e35ff28890.exe 30 PID 3052 wrote to memory of 2128 3052 37c89d3724f91814329d61e35ff28890.exe 30 PID 3052 wrote to memory of 2128 3052 37c89d3724f91814329d61e35ff28890.exe 30 PID 2128 wrote to memory of 2912 2128 37c89d3724f91814329d61e35ff28890.exe 31 PID 2128 wrote to memory of 2912 2128 37c89d3724f91814329d61e35ff28890.exe 31 PID 2128 wrote to memory of 2912 2128 37c89d3724f91814329d61e35ff28890.exe 31 PID 2128 wrote to memory of 2912 2128 37c89d3724f91814329d61e35ff28890.exe 31 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 37c89d3724f91814329d61e35ff28890.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 37c89d3724f91814329d61e35ff28890.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\37c89d3724f91814329d61e35ff28890.exe"C:\Users\Admin\AppData\Local\Temp\37c89d3724f91814329d61e35ff28890.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3052 -
C:\Users\Admin\AppData\Local\Temp\37c89d3724f91814329d61e35ff28890.exe"C:\Users\Admin\AppData\Local\Temp\37c89d3724f91814329d61e35ff28890.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:2128 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2128 -s 10003⤵
- Program crash
PID:2912
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