Analysis
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max time kernel
122s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
29-01-2025 14:31
Static task
static1
Behavioral task
behavioral1
Sample
z53CV.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
z53CV.exe
Resource
win10v2004-20241007-en
General
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Target
z53CV.exe
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Size
949KB
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MD5
15029aa00dc1beac4707a80ea501048e
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SHA1
a17ebbb34e19533cd16daec646b0b8d3ed294c8d
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SHA256
3d7654867efbc44661a3a5889d8f91fc402917587e58f9fc7a5c8c636b32b1a6
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SHA512
49e9e8a27edb741ae5060813e26da1c48d75820346edfca2affaf79560e87be7f2b0d07d8dbaa13a88523bbfe251c20366d51a76d31d944cedd70738cd469ef0
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SSDEEP
24576:bAHnh+eWsN3skA4RV1Hom2KXFmIa5zCFBZex1JF5:2h+ZkldoPK1Xa5zCXcx1N
Malware Config
Extracted
snakekeylogger
https://api.telegram.org/bot7920003586:AAHBMriHaNCFiZ4OQ4NdecriTbdf93HSOJo/sendMessage?chat_id=7174574119
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 3 IoCs
resource yara_rule behavioral1/memory/2364-12-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2364-16-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2364-14-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger -
Snakekeylogger family
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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 4 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1752 set thread context of 2364 1752 z53CV.exe 31 -
Program crash 1 IoCs
pid pid_target Process procid_target 2700 2364 WerFault.exe 31 -
System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language z53CV.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegSvcs.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2364 RegSvcs.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1752 z53CV.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2364 RegSvcs.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1752 z53CV.exe 1752 z53CV.exe -
Suspicious use of SendNotifyMessage 2 IoCs
pid Process 1752 z53CV.exe 1752 z53CV.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 1752 wrote to memory of 2364 1752 z53CV.exe 31 PID 1752 wrote to memory of 2364 1752 z53CV.exe 31 PID 1752 wrote to memory of 2364 1752 z53CV.exe 31 PID 1752 wrote to memory of 2364 1752 z53CV.exe 31 PID 1752 wrote to memory of 2364 1752 z53CV.exe 31 PID 1752 wrote to memory of 2364 1752 z53CV.exe 31 PID 1752 wrote to memory of 2364 1752 z53CV.exe 31 PID 1752 wrote to memory of 2364 1752 z53CV.exe 31 PID 2364 wrote to memory of 2700 2364 RegSvcs.exe 32 PID 2364 wrote to memory of 2700 2364 RegSvcs.exe 32 PID 2364 wrote to memory of 2700 2364 RegSvcs.exe 32 PID 2364 wrote to memory of 2700 2364 RegSvcs.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\z53CV.exe"C:\Users\Admin\AppData\Local\Temp\z53CV.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1752 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Users\Admin\AppData\Local\Temp\z53CV.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2364 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2364 -s 10643⤵
- Program crash
PID:2700
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