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
27/05/2024, 18:30
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-27_53990de269da670c74a9e658a412c922_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-27_53990de269da670c74a9e658a412c922_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-27_53990de269da670c74a9e658a412c922_cryptolocker.exe
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Size
46KB
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MD5
53990de269da670c74a9e658a412c922
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SHA1
9dea92ea131b1fcaa678356843af6f0666cf33b0
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SHA256
e5250f45f3c4b75b51c6ce0d695315569b62461323471bd022159c6be175ea84
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SHA512
9b7c24b7c912d8d66843309cee1003ca70fb75a9afffb82c5fac5d7e889fd6e507ac7c74e96ee94f9ef5cfa36341dee8deb28be2d4b674f42b7728f8c2f470a5
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SSDEEP
768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAP5:P6QFElP6k+MRQMOtEvwDpjBQpVXg
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2032-0-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000d0000000143fa-11.dat CryptoLocker_rule2 behavioral1/memory/2032-13-0x0000000002840000-0x000000000284B000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2032-16-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2636-26-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/2032-0-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000d0000000143fa-11.dat CryptoLocker_set1 behavioral1/memory/2032-13-0x0000000002840000-0x000000000284B000-memory.dmp CryptoLocker_set1 behavioral1/memory/2032-16-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 behavioral1/memory/2636-26-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 2636 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2032 2024-05-27_53990de269da670c74a9e658a412c922_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 2032 wrote to memory of 2636 2032 2024-05-27_53990de269da670c74a9e658a412c922_cryptolocker.exe 28 PID 2032 wrote to memory of 2636 2032 2024-05-27_53990de269da670c74a9e658a412c922_cryptolocker.exe 28 PID 2032 wrote to memory of 2636 2032 2024-05-27_53990de269da670c74a9e658a412c922_cryptolocker.exe 28 PID 2032 wrote to memory of 2636 2032 2024-05-27_53990de269da670c74a9e658a412c922_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-27_53990de269da670c74a9e658a412c922_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-27_53990de269da670c74a9e658a412c922_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2032 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2636
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
47KB
MD559dd7b3782d97be2069a85bfa9d76990
SHA1f21baf32f3ec8ed531b94a702ce63835c6bb66f0
SHA25664798fe77a7ef159e7739536b967ed60e621f07ff0475ba70df9062b4b9a1c5b
SHA512cd1781b5a5ddd6eaba8021506c0809834a243a06d5ce57b4d222fa1f6b2abe57190932364decc714a17aac324fff78041f8aa229ad61ac7d2f46d3c218049507