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Analysis
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max time kernel
149s -
max time network
152s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
16/03/2024, 07:53
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-16_bb56b1f43609cbc2282c2684354ae7aa_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-16_bb56b1f43609cbc2282c2684354ae7aa_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-03-16_bb56b1f43609cbc2282c2684354ae7aa_cryptolocker.exe
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Size
26KB
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MD5
bb56b1f43609cbc2282c2684354ae7aa
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SHA1
5e292c817fc26eb4625c6aebc8dd62603a7feb1f
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SHA256
f622f4f4836c92a253168aaf7ef01ad1b6796498f49e350e889cb8f98ed60d9a
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SHA512
8e7c5683f7b199deeee23f76ac29272a884c94fd8ea082cdfbd015bdd04ed04757e29346311bb0cd4636a1b7f856eb3d949c6f40bb5e5c4354376da10d74a8bf
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SSDEEP
384:qxOZzyjOnqGAs+8ULueO4NdE8tOOtEvwDpjqIGRYK1sGGYkxOqy:q0ZziOWwULueOSdE8tOOtEvwDpjeYy
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/936-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000a000000012272-11.dat CryptoLocker_rule2 behavioral1/memory/936-15-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2996-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2996-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 3 IoCs
resource yara_rule behavioral1/memory/936-15-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2996-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2996-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
UPX dump on OEP (original entry point) 5 IoCs
resource yara_rule behavioral1/memory/936-0-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/files/0x000a000000012272-11.dat UPX behavioral1/memory/936-15-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/2996-16-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/2996-26-0x0000000000500000-0x0000000000510000-memory.dmp UPX -
Executes dropped EXE 1 IoCs
pid Process 2996 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 936 2024-03-16_bb56b1f43609cbc2282c2684354ae7aa_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 936 wrote to memory of 2996 936 2024-03-16_bb56b1f43609cbc2282c2684354ae7aa_cryptolocker.exe 28 PID 936 wrote to memory of 2996 936 2024-03-16_bb56b1f43609cbc2282c2684354ae7aa_cryptolocker.exe 28 PID 936 wrote to memory of 2996 936 2024-03-16_bb56b1f43609cbc2282c2684354ae7aa_cryptolocker.exe 28 PID 936 wrote to memory of 2996 936 2024-03-16_bb56b1f43609cbc2282c2684354ae7aa_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-03-16_bb56b1f43609cbc2282c2684354ae7aa_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-16_bb56b1f43609cbc2282c2684354ae7aa_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:936 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2996
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
27KB
MD57c518f4bb7b992c690fe72bfcc3165d1
SHA11fdd7ec23bbbd342888309d73f57a10b2ea55d4d
SHA25612c6e4a73cd9fdf73759eec54cb9fccee0ba700fb5a7b82dfa3dac96f00d6522
SHA5123b111ab13b676d541fee745a28a6cd240fad0a4e990a419b181d3d339c258bb12b299f469336759cab5667914e8b1975e56aaccb8a69453d84d68979d8c35f2f