Overview
overview
10Static
static
10TekDefense.exe
windows7-x64
7TekDefense.exe
windows10-2004-x64
7index 2.html
windows7-x64
1index 2.html
windows10-2004-x64
1index2 2.html
windows7-x64
1index2 2.html
windows10-2004-x64
1index3 2.html
windows7-x64
1index3 2.html
windows10-2004-x64
1ransomware.exe
windows7-x64
7ransomware.exe
windows10-2004-x64
7tekdefense.dll
windows7-x64
10tekdefense.dll
windows10-2004-x64
5Analysis
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max time kernel
135s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
27-03-2023 09:37
Behavioral task
behavioral1
Sample
TekDefense.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
TekDefense.exe
Resource
win10v2004-20230220-en
Behavioral task
behavioral3
Sample
index 2.html
Resource
win7-20230220-en
Behavioral task
behavioral4
Sample
index 2.html
Resource
win10v2004-20230220-en
Behavioral task
behavioral5
Sample
index2 2.html
Resource
win7-20230220-en
Behavioral task
behavioral6
Sample
index2 2.html
Resource
win10v2004-20230220-en
Behavioral task
behavioral7
Sample
index3 2.html
Resource
win7-20230220-en
Behavioral task
behavioral8
Sample
index3 2.html
Resource
win10v2004-20230221-en
Behavioral task
behavioral9
Sample
ransomware.exe
Resource
win7-20230220-en
Behavioral task
behavioral10
Sample
ransomware.exe
Resource
win10v2004-20230220-en
Behavioral task
behavioral11
Sample
tekdefense.dll
Resource
win7-20230220-en
Behavioral task
behavioral12
Sample
tekdefense.dll
Resource
win10v2004-20230220-en
General
-
Target
tekdefense.dll
-
Size
14KB
-
MD5
1f3195eff807eceda24c74ea4c483f8c
-
SHA1
875b5d9b81e27ed8e5dc6fc8610813f68c5f59a9
-
SHA256
9420c9b7b0e45c2e5440c20cca570e991cbf151babf2537bf3dc08cf6d12c321
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SHA512
15125f2c6d89af222fc092b20bf8a560d1913bf45ad54cbb6a94382fa8416054ba1b65261d0ba8e4ff3fbf825a41d7f27a9556dad3ea8e13f1ed7c4587a5c887
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SSDEEP
48:6D640H+VzPiZerMpZytjWeyLhnhIAsYBlnfpJo+b23mRhHeq0JEI0oqtIzNi:WmHGzq6tjW33XlfprbSmRhsJNcy
Malware Config
Signatures
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Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4940 set thread context of 4348 4940 rundll32.exe 84 -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 424 wrote to memory of 4940 424 rundll32.exe 83 PID 424 wrote to memory of 4940 424 rundll32.exe 83 PID 424 wrote to memory of 4940 424 rundll32.exe 83 PID 4940 wrote to memory of 4348 4940 rundll32.exe 84 PID 4940 wrote to memory of 4348 4940 rundll32.exe 84 PID 4940 wrote to memory of 4348 4940 rundll32.exe 84 PID 4940 wrote to memory of 4348 4940 rundll32.exe 84
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\tekdefense.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:424 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\tekdefense.dll,#12⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4940 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe3⤵PID:4348
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