Analysis
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max time kernel
150s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
11/08/2024, 20:22
Static task
static1
Behavioral task
behavioral1
Sample
2024-08-11_0d5dee2553fc88e3eef8e7876692b654_cryptolocker.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
2024-08-11_0d5dee2553fc88e3eef8e7876692b654_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-08-11_0d5dee2553fc88e3eef8e7876692b654_cryptolocker.exe
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Size
392KB
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MD5
0d5dee2553fc88e3eef8e7876692b654
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SHA1
630b86f0bcc2a58c53d8058d190001e5a3a413b4
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SHA256
dec85dd1a7a027b54600fdd8876af74ac18e34c21028b59c3999ec2b1ae361e3
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SHA512
95c187cf5b2f0029fc4ee9cdfe44ec4a97aa2c695db2663f90fca4b9dc58d7071bf42f6484f3c1cf37de781cba484637fef5797ae39edc0ee2c9d0497058c778
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SSDEEP
6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXRK:nnOflT/ZFIjBz3xjTxynGUOUhXRK
Malware Config
Signatures
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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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation 2024-08-11_0d5dee2553fc88e3eef8e7876692b654_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 3624 hasfj.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-08-11_0d5dee2553fc88e3eef8e7876692b654_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language hasfj.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2740 wrote to memory of 3624 2740 2024-08-11_0d5dee2553fc88e3eef8e7876692b654_cryptolocker.exe 86 PID 2740 wrote to memory of 3624 2740 2024-08-11_0d5dee2553fc88e3eef8e7876692b654_cryptolocker.exe 86 PID 2740 wrote to memory of 3624 2740 2024-08-11_0d5dee2553fc88e3eef8e7876692b654_cryptolocker.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-08-11_0d5dee2553fc88e3eef8e7876692b654_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-08-11_0d5dee2553fc88e3eef8e7876692b654_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2740 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3624
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
392KB
MD596d84d93bbf3e85d8643157fa59e2c29
SHA1ebf064a543536d1a1c6915bc7278b642250a45d8
SHA2565742993b8f15aeabdb503d3e97e7a94449d19acd2747d780bc2df179c118f13e
SHA51293815564d5c323d64b2cb3a25e78da60bf6a5c5082580b7f03fdbf18d92fd1fdd102888d87d23f76dca41b53dc30821ca53bb449639befad6578a503d01570b6