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Analysis
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max time kernel
143s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
21/02/2024, 03:29
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-21_db01fa163a477b7a6af4b05eb5249ffc_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-02-21_db01fa163a477b7a6af4b05eb5249ffc_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-02-21_db01fa163a477b7a6af4b05eb5249ffc_cryptolocker.exe
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Size
39KB
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MD5
db01fa163a477b7a6af4b05eb5249ffc
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SHA1
3d3bf36d35b0fe72bb446fded53800688acfa509
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SHA256
c6d21ca698324630d60737598ec2838b7fb8aa5fdcb3623224577cd9fbdf2729
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SHA512
782874ca39676d901067acfb37ec6a60858a57faedf3af3b8b0ece485fb7c09a27c60167b4e255f1d5b534ba69b3e233a3a1434304527dc919e162f8aa3d30f1
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SSDEEP
768:bAvJCYOOvbRPDEgXrNekd7l94i3py/yLFka:bAvJCF+RQgJeab4sy/a3
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x0007000000023214-12.dat CryptoLocker_rule2 -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\International\Geo\Nation demka.exe Key value queried \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\International\Geo\Nation 2024-02-21_db01fa163a477b7a6af4b05eb5249ffc_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 3228 demka.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 1112 wrote to memory of 3228 1112 2024-02-21_db01fa163a477b7a6af4b05eb5249ffc_cryptolocker.exe 84 PID 1112 wrote to memory of 3228 1112 2024-02-21_db01fa163a477b7a6af4b05eb5249ffc_cryptolocker.exe 84 PID 1112 wrote to memory of 3228 1112 2024-02-21_db01fa163a477b7a6af4b05eb5249ffc_cryptolocker.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-21_db01fa163a477b7a6af4b05eb5249ffc_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-21_db01fa163a477b7a6af4b05eb5249ffc_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1112 -
C:\Users\Admin\AppData\Local\Temp\demka.exe"C:\Users\Admin\AppData\Local\Temp\demka.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
PID:3228
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
39KB
MD5107f44aaaf22630eb8d25987fb63de75
SHA1e41d4eaca1ac866722dae961a841ca194a54c73a
SHA25604c8dd000a91b1c61a84b3cee30369a81202fc7449eaa4b0f9dabf349c9b99fb
SHA51204a4b61cdcb455786f03723cf3369606c56b920401c5aea17024b050d545fb1ba2b6df9d8615e8916a9e92918e0524661bac654d5356e1e060c2db5e07a5db73