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Analysis
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max time kernel
148s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
09/05/2024, 03:45
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-09_9724eaa3ac616848ea8e25fb95dac6f6_cryptolocker.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-05-09_9724eaa3ac616848ea8e25fb95dac6f6_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-05-09_9724eaa3ac616848ea8e25fb95dac6f6_cryptolocker.exe
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Size
36KB
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MD5
9724eaa3ac616848ea8e25fb95dac6f6
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SHA1
15dfa78868a6fec48d923a841d41ee744dcf9e4d
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SHA256
9d17928d26e58f813b81822a05e1538163d9e9f3189516ff9be77a58697f97e3
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SHA512
0c78dc7a069e4066503fde055b21e4d972b1278102fde0248c02e62c857bab617e4ce334c02d63c10a016bef8f518431627b81ad5cf9c4fb804f84c7a2b4aec0
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SSDEEP
384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6c3l8Sz960SPluRin:bAvJCYOOvbRPDEgXRc3SSz3SPE4
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000a000000015f7a-10.dat CryptoLocker_rule2 -
Executes dropped EXE 1 IoCs
pid Process 2748 demka.exe -
Loads dropped DLL 1 IoCs
pid Process 2212 2024-05-09_9724eaa3ac616848ea8e25fb95dac6f6_cryptolocker.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of UnmapMainImage 2 IoCs
pid Process 2212 2024-05-09_9724eaa3ac616848ea8e25fb95dac6f6_cryptolocker.exe 2748 demka.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2212 wrote to memory of 2748 2212 2024-05-09_9724eaa3ac616848ea8e25fb95dac6f6_cryptolocker.exe 28 PID 2212 wrote to memory of 2748 2212 2024-05-09_9724eaa3ac616848ea8e25fb95dac6f6_cryptolocker.exe 28 PID 2212 wrote to memory of 2748 2212 2024-05-09_9724eaa3ac616848ea8e25fb95dac6f6_cryptolocker.exe 28 PID 2212 wrote to memory of 2748 2212 2024-05-09_9724eaa3ac616848ea8e25fb95dac6f6_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-09_9724eaa3ac616848ea8e25fb95dac6f6_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-09_9724eaa3ac616848ea8e25fb95dac6f6_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2212 -
C:\Users\Admin\AppData\Local\Temp\demka.exe"C:\Users\Admin\AppData\Local\Temp\demka.exe"2⤵
- Executes dropped EXE
- Suspicious use of UnmapMainImage
PID:2748
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
36KB
MD5d4157d2333a7bd769a800d0394e29905
SHA147604ffe3cb0e02098ef52d391f15f92eb1d904a
SHA25670773106fe5378a01cb22e8c1e3219296034c65aab28400d9ae7ae7592d16c8c
SHA51281226fbb3fdba7083a0066fdd29fb8099f67c3c6e3e9284c83c2b74a7b3e036fe0e70d1a4be1aff9f221cfc1c72aa7d634e17c672d2e26f179dde64bc0b47e9c