Analysis
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max time kernel
149s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
26/05/2024, 03:49
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-26_a40925c052f28e4efc4c97bbd32430c8_cryptolocker.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-05-26_a40925c052f28e4efc4c97bbd32430c8_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-26_a40925c052f28e4efc4c97bbd32430c8_cryptolocker.exe
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Size
87KB
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MD5
a40925c052f28e4efc4c97bbd32430c8
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SHA1
c11a37112e71a33b009e4ca3b3c20cbf361c0cbc
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SHA256
52dd67e01fc6a7c5da5e08ecfa7ba7bbbe8abe465c68d47f2e4ad977efc07892
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SHA512
cad86a33cda7af2b28ad05464ea3f87c802a8a716334b072e46d349e346e93b322d48a5017fb5898165f287971dc038fb7b4be0a314b14c565cf77eab173e5af
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SSDEEP
1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfWafHNBlE:vCjsIOtEvwDpj5H9YvQd2y
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000a000000012286-10.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000a000000012286-10.dat CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 1300 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 1776 2024-05-26_a40925c052f28e4efc4c97bbd32430c8_cryptolocker.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1776 wrote to memory of 1300 1776 2024-05-26_a40925c052f28e4efc4c97bbd32430c8_cryptolocker.exe 28 PID 1776 wrote to memory of 1300 1776 2024-05-26_a40925c052f28e4efc4c97bbd32430c8_cryptolocker.exe 28 PID 1776 wrote to memory of 1300 1776 2024-05-26_a40925c052f28e4efc4c97bbd32430c8_cryptolocker.exe 28 PID 1776 wrote to memory of 1300 1776 2024-05-26_a40925c052f28e4efc4c97bbd32430c8_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-26_a40925c052f28e4efc4c97bbd32430c8_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-26_a40925c052f28e4efc4c97bbd32430c8_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1776 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:1300
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
87KB
MD54cf38c8e04e5bdac9bd102536457edee
SHA18c891a3161ff923e0780718bd28817865f692056
SHA256c88b8c810d60a8ce17ac62881d94e2a5b65890953d00a77aba39ebaf101035a9
SHA5127c877d59ca6377c97235d0696b6bee4779515758ae7c1d0d06fee2309316dbde0476eb2c14a3a334f51859310cc678ab4ea704ab1a5687469625b7b8d1f8775a