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Analysis
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max time kernel
148s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
24/04/2024, 22:30
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-24_9973f8c2bcc0768b96f3ba05d2e3adb8_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-24_9973f8c2bcc0768b96f3ba05d2e3adb8_cryptolocker.exe
Resource
win10v2004-20240412-en
General
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Target
2024-04-24_9973f8c2bcc0768b96f3ba05d2e3adb8_cryptolocker.exe
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Size
36KB
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MD5
9973f8c2bcc0768b96f3ba05d2e3adb8
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SHA1
4f090606cb5f909c4a71d38e436ebc8aadb6d593
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SHA256
3b9193480a544e5b7ff72ba9a0cd92d0781324f422a94212ec9c109d5f9c41b0
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SHA512
cde1956c41f052171b766f99dcc8568ef0114d0abe7f7af87e81c91dd52aebd90befe37911622f8490b3b76247e9e462c9ec70dff1deeee6b4de6f2db9417249
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SSDEEP
768:fTz7y3lhsT+hs1SQtOOtEvwDpjfAu9+4/W:fT+hsMQMOtEvwDpjoIHe
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000a000000012255-10.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000a000000012255-10.dat CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 2356 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2944 2024-04-24_9973f8c2bcc0768b96f3ba05d2e3adb8_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 2944 wrote to memory of 2356 2944 2024-04-24_9973f8c2bcc0768b96f3ba05d2e3adb8_cryptolocker.exe 28 PID 2944 wrote to memory of 2356 2944 2024-04-24_9973f8c2bcc0768b96f3ba05d2e3adb8_cryptolocker.exe 28 PID 2944 wrote to memory of 2356 2944 2024-04-24_9973f8c2bcc0768b96f3ba05d2e3adb8_cryptolocker.exe 28 PID 2944 wrote to memory of 2356 2944 2024-04-24_9973f8c2bcc0768b96f3ba05d2e3adb8_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-04-24_9973f8c2bcc0768b96f3ba05d2e3adb8_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-24_9973f8c2bcc0768b96f3ba05d2e3adb8_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2944 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2356
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
36KB
MD58a952aa1036d1c9d88ace00473727a31
SHA1354dd5474528984c554111c6c845f947ba67c76f
SHA256db4cc972c447ff1b06d5330d9c84bd9d97db4502ac4f7305f204dcc6f6a6c1ec
SHA51271e8c909bf27b00438027bd854e3a53b5c0b4d3baa4b54ae9c061dab508821b54ca731d339b27e3246f18ccd9f2ffe4702f06035437e5ab24d3b419424279d30