Analysis
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max time kernel
47s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
25-12-2023 11:57
Static task
static1
Behavioral task
behavioral1
Sample
1c75ed246b67d5d73d8116cae91fe71a.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
1c75ed246b67d5d73d8116cae91fe71a.exe
Resource
win10v2004-20231222-en
General
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Target
1c75ed246b67d5d73d8116cae91fe71a.exe
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Size
651KB
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MD5
1c75ed246b67d5d73d8116cae91fe71a
-
SHA1
1bad67597cf5ba20500beea1df7f6f811d268fef
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SHA256
6c4dce03c2361cd4ce1627de2e6d1ffa328de25fa8510830face0f908f35f0f3
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SHA512
7dec787e585cbf73354e0d3ad2560f94b2e10a7d4c68079f2abcdf8880432ef0cb946dfafc5801ba8bab7575e656c61e5bcdff5a5b46d84847e74fc77bf67a98
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SSDEEP
12288:/qaPU9aPU91wvBE8L7TOsBgo0q4wM3flvoyVb31jwdg4zUc54yG3Bot0M9IbCbU/:/qY7TOsBgo0q4wMtwaLT4zUc54t3OwbV
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
smtp.fireacoustics.com - Port:
587 - Username:
[email protected] - Password:
_d:rzD~62Jxh - 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 6 IoCs
Processes:
resource yara_rule behavioral1/memory/3052-13-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/3052-18-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/3052-20-0x0000000004B20000-0x0000000004B60000-memory.dmp family_snakekeylogger behavioral1/memory/3052-15-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/3052-11-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger behavioral1/memory/3052-10-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger -
CustAttr .NET packer 1 IoCs
Detects CustAttr .NET packer in memory.
Processes:
resource yara_rule behavioral1/memory/2024-3-0x0000000000450000-0x0000000000462000-memory.dmp CustAttr -
Looks up external IP address via web service 4 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 9 freegeoip.app 17 freegeoip.app 4 checkip.dyndns.org 8 freegeoip.app -
Suspicious use of SetThreadContext 1 IoCs
Processes:
1c75ed246b67d5d73d8116cae91fe71a.exedescription pid process target process PID 2024 set thread context of 3052 2024 1c75ed246b67d5d73d8116cae91fe71a.exe MSBuild.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1628 3052 WerFault.exe MSBuild.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
MSBuild.exepid process 3052 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
MSBuild.exedescription pid process Token: SeDebugPrivilege 3052 MSBuild.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
1c75ed246b67d5d73d8116cae91fe71a.exedescription pid process target process PID 2024 wrote to memory of 3052 2024 1c75ed246b67d5d73d8116cae91fe71a.exe MSBuild.exe PID 2024 wrote to memory of 3052 2024 1c75ed246b67d5d73d8116cae91fe71a.exe MSBuild.exe PID 2024 wrote to memory of 3052 2024 1c75ed246b67d5d73d8116cae91fe71a.exe MSBuild.exe PID 2024 wrote to memory of 3052 2024 1c75ed246b67d5d73d8116cae91fe71a.exe MSBuild.exe PID 2024 wrote to memory of 3052 2024 1c75ed246b67d5d73d8116cae91fe71a.exe MSBuild.exe PID 2024 wrote to memory of 3052 2024 1c75ed246b67d5d73d8116cae91fe71a.exe MSBuild.exe PID 2024 wrote to memory of 3052 2024 1c75ed246b67d5d73d8116cae91fe71a.exe MSBuild.exe PID 2024 wrote to memory of 3052 2024 1c75ed246b67d5d73d8116cae91fe71a.exe MSBuild.exe PID 2024 wrote to memory of 3052 2024 1c75ed246b67d5d73d8116cae91fe71a.exe MSBuild.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\1c75ed246b67d5d73d8116cae91fe71a.exe"C:\Users\Admin\AppData\Local\Temp\1c75ed246b67d5d73d8116cae91fe71a.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2024 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3052 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3052 -s 10123⤵
- Program crash
PID:1628