Analysis
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max time kernel
43s -
max time network
36s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
06-06-2024 18:55
Static task
static1
Behavioral task
behavioral1
Sample
Kulo Proxy.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral2
Sample
Kulo Proxy.exe
Resource
win11-20240426-en
Behavioral task
behavioral3
Sample
libcrypto-3-x64.dll
Resource
win10v2004-20240426-en
Behavioral task
behavioral4
Sample
libcrypto-3-x64.dll
Resource
win11-20240419-en
Behavioral task
behavioral5
Sample
libssl-3-x64.dll
Resource
win10v2004-20240508-en
Behavioral task
behavioral6
Sample
libssl-3-x64.dll
Resource
win11-20240508-en
General
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Target
Kulo Proxy.exe
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Size
2.3MB
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MD5
f7aaffa9a85cd5b2b147b1c2a117dfd9
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SHA1
336ca5e628cf57ba5c4701918ada06bf908d3753
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SHA256
4f3728da388cc647f39d12c330ff81b4068d7c908668d56d6e6f0d87631085d9
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SHA512
5368be56ced8d1abca50848430755e927cca92a726ded5d609f4fba2cbd93946b1e4c68b235f0e612bd52a025643fcfab3309afbce5ec1e39f3ba5e7e09c564c
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SSDEEP
49152:T17U1ozWrLIgUi5o3/rdcVs+xg/MwoieUrduY6:JdSnq6
Malware Config
Signatures
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Modifies registry class 9 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000_Classes\discord-1102550822702813184\shell\open Kulo Proxy.exe Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000_Classes\discord-1102550822702813184\shell\open\command\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Kulo Proxy.exe" Kulo Proxy.exe Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000_Classes\discord-1102550822702813184\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Kulo Proxy.exe" Kulo Proxy.exe Key created \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000_Classes\discord-1102550822702813184\shell Kulo Proxy.exe Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000_Classes\discord-1102550822702813184\URL Protocol Kulo Proxy.exe Key created \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000_Classes\discord-1102550822702813184\DefaultIcon Kulo Proxy.exe Key created \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000_Classes\discord-1102550822702813184\shell\open\command Kulo Proxy.exe Key created \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000_Classes\discord-1102550822702813184 Kulo Proxy.exe Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000_Classes\discord-1102550822702813184\ = "URL:Run game 1102550822702813184 protocol" Kulo Proxy.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2308 wrote to memory of 5096 2308 Kulo Proxy.exe 84 PID 2308 wrote to memory of 5096 2308 Kulo Proxy.exe 84 PID 2308 wrote to memory of 2484 2308 Kulo Proxy.exe 85 PID 2308 wrote to memory of 2484 2308 Kulo Proxy.exe 85 PID 2484 wrote to memory of 3432 2484 cmd.exe 86 PID 2484 wrote to memory of 3432 2484 cmd.exe 86 PID 2484 wrote to memory of 4044 2484 cmd.exe 87 PID 2484 wrote to memory of 4044 2484 cmd.exe 87 PID 2484 wrote to memory of 3056 2484 cmd.exe 88 PID 2484 wrote to memory of 3056 2484 cmd.exe 88 PID 2308 wrote to memory of 988 2308 Kulo Proxy.exe 92 PID 2308 wrote to memory of 988 2308 Kulo Proxy.exe 92
Processes
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C:\Users\Admin\AppData\Local\Temp\Kulo Proxy.exe"C:\Users\Admin\AppData\Local\Temp\Kulo Proxy.exe"1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2308 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c Color 0A2⤵PID:5096
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\Kulo Proxy.exe" MD5 | find /i /v "md5" | find /i /v "certutil"2⤵
- Suspicious use of WriteProcessMemory
PID:2484 -
C:\Windows\system32\certutil.execertutil -hashfile "C:\Users\Admin\AppData\Local\Temp\Kulo Proxy.exe" MD53⤵PID:3432
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C:\Windows\system32\find.exefind /i /v "md5"3⤵PID:4044
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C:\Windows\system32\find.exefind /i /v "certutil"3⤵PID:3056
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c CLS2⤵PID:988
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