Analysis
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max time kernel
118s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
04/06/2024, 01:32
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-04_46283bf13ef351fe55de88722c9d301b_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-06-04_46283bf13ef351fe55de88722c9d301b_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-04_46283bf13ef351fe55de88722c9d301b_cryptolocker.exe
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Size
44KB
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MD5
46283bf13ef351fe55de88722c9d301b
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SHA1
572df98ea1a7e83fae9341ec8482924b29b8209d
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SHA256
810eb2467ca44b25454d4b70fbf3059f429f12053785ca4a49520f3d03bf1695
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SHA512
f6208666ea986d5b1256aa8a849630e29bd1023d41201fcd765728a0d438f7670c73a3a8f8f4da9cf0daedd3c18ce31e2fb300f669c00b221c2028d750cd7154
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SSDEEP
384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jb0nrlwfjDUadQC8M:bm74zYcgT/EkM0ryfjPdQZM
Malware Config
Signatures
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Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/2876-0-0x0000000008000000-0x000000000800D000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000e000000015a98-11.dat CryptoLocker_rule2 behavioral1/memory/2876-16-0x0000000008000000-0x000000000800D000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2880-26-0x0000000008000000-0x000000000800D000-memory.dmp CryptoLocker_rule2 -
Executes dropped EXE 1 IoCs
pid Process 2880 hasfj.exe -
Loads dropped DLL 1 IoCs
pid Process 2876 2024-06-04_46283bf13ef351fe55de88722c9d301b_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 2876 wrote to memory of 2880 2876 2024-06-04_46283bf13ef351fe55de88722c9d301b_cryptolocker.exe 28 PID 2876 wrote to memory of 2880 2876 2024-06-04_46283bf13ef351fe55de88722c9d301b_cryptolocker.exe 28 PID 2876 wrote to memory of 2880 2876 2024-06-04_46283bf13ef351fe55de88722c9d301b_cryptolocker.exe 28 PID 2876 wrote to memory of 2880 2876 2024-06-04_46283bf13ef351fe55de88722c9d301b_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-04_46283bf13ef351fe55de88722c9d301b_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-04_46283bf13ef351fe55de88722c9d301b_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2876 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
PID:2880
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
45KB
MD5086afce8cab3fe5c397cafd8b66112ac
SHA1d94713132e1a700153e2bd47e45ec4c52837066a
SHA256e72ff4c24df0d113f2c7acf7f73cae58c1134b0c7502cf75f37f6960585efedd
SHA51272f61790191385bc372fea65efaa86959a3b69d417ef7909abceaa0dc2042bd249180b0e3fe23b80c8eef3b2b0108bdb3e9fae91aba81a33e3f07116ccadbd8c