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Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
19/02/2024, 04:24
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-19_0aef9ae123a14b4ffea9613e6a5f3c0e_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-02-19_0aef9ae123a14b4ffea9613e6a5f3c0e_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-02-19_0aef9ae123a14b4ffea9613e6a5f3c0e_cryptolocker.exe
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Size
60KB
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MD5
0aef9ae123a14b4ffea9613e6a5f3c0e
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SHA1
5429d076a278e1bb6ea832e2017911e20a09f830
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SHA256
ea79111406ba792a66df20193615cf5af2181b2fefb8c779554ae78f1f9d847c
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SHA512
aa4501cf3fd097588bb41906106e73555dbf9055b8a01cd03c3a4df12a99432f8e15bb5aed563f49b290cc4df2f343a032c5251ec248f5f538d380133edb3090
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SSDEEP
1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMOJ:TCjsIOtEvwDpj5HE/OUHnSMF
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral2/memory/4568-0-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000b000000023161-13.dat CryptoLocker_rule2 behavioral2/memory/4568-17-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4076-18-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4076-27-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral2/memory/4568-0-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral2/files/0x000b000000023161-13.dat CryptoLocker_set1 behavioral2/memory/4568-17-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral2/memory/4076-18-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral2/memory/4076-27-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation 2024-02-19_0aef9ae123a14b4ffea9613e6a5f3c0e_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 4076 misid.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4568 wrote to memory of 4076 4568 2024-02-19_0aef9ae123a14b4ffea9613e6a5f3c0e_cryptolocker.exe 84 PID 4568 wrote to memory of 4076 4568 2024-02-19_0aef9ae123a14b4ffea9613e6a5f3c0e_cryptolocker.exe 84 PID 4568 wrote to memory of 4076 4568 2024-02-19_0aef9ae123a14b4ffea9613e6a5f3c0e_cryptolocker.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-19_0aef9ae123a14b4ffea9613e6a5f3c0e_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-19_0aef9ae123a14b4ffea9613e6a5f3c0e_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4568 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:4076
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60KB
MD5c12c57fd67d6f8f4f40021de94cbe5ba
SHA185e2a83b8d1aea6d22ab2f8efa22d79cdb30ec0b
SHA25664b137588b363756d390b00d7b77af9bc52fb1b79ac003a7af0a86a94fbde049
SHA512f22d56980e2a6f48c37a44f4846eaae27d74839cf813277a333234a9bb3c7bd03289ba704c61ce9124b184366a8aa9e30832bac3cd4f207efc7a32b5a7fd628a