Analysis
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max time kernel
148s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system -
submitted
13/06/2024, 04:32
Behavioral task
behavioral1
Sample
2024-06-13_a3824cc5670519b520e1f3ae158f7220_cryptolocker.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
2024-06-13_a3824cc5670519b520e1f3ae158f7220_cryptolocker.exe
Resource
win10v2004-20240611-en
General
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Target
2024-06-13_a3824cc5670519b520e1f3ae158f7220_cryptolocker.exe
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Size
68KB
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MD5
a3824cc5670519b520e1f3ae158f7220
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SHA1
5be0959f3baea93c2d44a11df27ab9e656e00872
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SHA256
969b2c0a8d028745803ff0877cd9c6875464f63ddd5e20dc32414fe9e2bf4e86
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SHA512
a39c008945de31a894db8cbec10f0cf56411a596bc7e48a6af6fcea8665460208962d3ce53d319faaae5abb28ce118c18bd3e3f24a503be426b84c9b3d0b2602
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SSDEEP
1536:P8mnK6QFElP6n+gymddpMOtEvwDpjYibAoQRo:1nK6a+qdOOtEvwDpjN
Malware Config
Signatures
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Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/2856-0-0x0000000000500000-0x000000000050F311-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000a000000014f57-11.dat CryptoLocker_rule2 behavioral1/memory/2856-15-0x0000000000500000-0x000000000050F311-memory.dmp CryptoLocker_rule2 behavioral1/memory/2952-25-0x0000000000500000-0x000000000050F311-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 4 IoCs
resource yara_rule behavioral1/memory/2856-0-0x0000000000500000-0x000000000050F311-memory.dmp CryptoLocker_set1 behavioral1/files/0x000a000000014f57-11.dat CryptoLocker_set1 behavioral1/memory/2856-15-0x0000000000500000-0x000000000050F311-memory.dmp CryptoLocker_set1 behavioral1/memory/2952-25-0x0000000000500000-0x000000000050F311-memory.dmp CryptoLocker_set1 -
UPX dump on OEP (original entry point) 4 IoCs
resource yara_rule behavioral1/memory/2856-0-0x0000000000500000-0x000000000050F311-memory.dmp UPX behavioral1/files/0x000a000000014f57-11.dat UPX behavioral1/memory/2856-15-0x0000000000500000-0x000000000050F311-memory.dmp UPX behavioral1/memory/2952-25-0x0000000000500000-0x000000000050F311-memory.dmp UPX -
Executes dropped EXE 1 IoCs
pid Process 2952 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2856 2024-06-13_a3824cc5670519b520e1f3ae158f7220_cryptolocker.exe -
resource yara_rule behavioral1/memory/2856-0-0x0000000000500000-0x000000000050F311-memory.dmp upx behavioral1/files/0x000a000000014f57-11.dat upx behavioral1/memory/2856-15-0x0000000000500000-0x000000000050F311-memory.dmp upx behavioral1/memory/2952-25-0x0000000000500000-0x000000000050F311-memory.dmp upx -
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 2856 wrote to memory of 2952 2856 2024-06-13_a3824cc5670519b520e1f3ae158f7220_cryptolocker.exe 28 PID 2856 wrote to memory of 2952 2856 2024-06-13_a3824cc5670519b520e1f3ae158f7220_cryptolocker.exe 28 PID 2856 wrote to memory of 2952 2856 2024-06-13_a3824cc5670519b520e1f3ae158f7220_cryptolocker.exe 28 PID 2856 wrote to memory of 2952 2856 2024-06-13_a3824cc5670519b520e1f3ae158f7220_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-13_a3824cc5670519b520e1f3ae158f7220_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-13_a3824cc5670519b520e1f3ae158f7220_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2856 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2952
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
68KB
MD5b4ef927520d9c8300a7b5f49eec67e98
SHA13b34bd0215da74b9f075d5d3e77a30d0ce59f384
SHA25658891ff109c8b54187a0ecc728bb123fc48077c80fc92f7555fbad3ed8471d41
SHA5128ab9bee2b18a416261117052eda8ccccd69a37107a8ccff1005da30a3eaab24aeef54cc5a5cf5383749a41c00b9eda05b397bc7542232cc37de78959a455d53d