Analysis
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max time kernel
145s -
max time network
9s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
09/01/2024, 06:45
Static task
static1
Behavioral task
behavioral1
Sample
2024-01-08_a4d611b3681944596d238380b2c5742e_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-01-08_a4d611b3681944596d238380b2c5742e_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-01-08_a4d611b3681944596d238380b2c5742e_cryptolocker.exe
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Size
36KB
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MD5
a4d611b3681944596d238380b2c5742e
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SHA1
d3473582f4950c39f06f23719d5be2b86a54468e
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SHA256
94306b84645d1bd8e776dca1c2df084f05e2cdc7d2e4c58d0c946a9560aec188
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SHA512
8c2af56869267c5fc37067ed5fdae4de50aacf0ae959f3061401a1fa0686f4b9cfcc6067738e93d9628f073b378306d02589971f56af01f09e312c8ea8d0824b
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SSDEEP
384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzoiM8Nekdvjl9V50i3Nb/mVih:bAvJCYOOvbRPDEgXrNekd7l94i3p/f
Malware Config
Signatures
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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-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation 2024-01-08_a4d611b3681944596d238380b2c5742e_cryptolocker.exe Key value queried \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation demka.exe -
Executes dropped EXE 1 IoCs
pid Process 3252 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 5100 wrote to memory of 3252 5100 2024-01-08_a4d611b3681944596d238380b2c5742e_cryptolocker.exe 22 PID 5100 wrote to memory of 3252 5100 2024-01-08_a4d611b3681944596d238380b2c5742e_cryptolocker.exe 22 PID 5100 wrote to memory of 3252 5100 2024-01-08_a4d611b3681944596d238380b2c5742e_cryptolocker.exe 22
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-01-08_a4d611b3681944596d238380b2c5742e_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-08_a4d611b3681944596d238380b2c5742e_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5100 -
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:3252
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
7KB
MD592d02a312d1bda24649db31aa2703eca
SHA136632e34813d556026893ef05e9f08016961c7f0
SHA256fa708a3cf97ec419eef1a5b27e07c920e227d68a973a6a954da1b0ce29e36f39
SHA5128182ddff72320f8560d0f07ca850815b64f730bf974f9e24d965fec80c3fed01413ab8b072788cb138ee618d9fa3faf27cbcccc33c03331466abb5ba8076cd70
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Filesize
5KB
MD5ea09a660e8c18735e35ce52a319a3e0e
SHA14525ee5015077cc35ac9d4b6910bed17028123b5
SHA256ea24e98dfdd1a0f8ae0de73d76f6a677d7d66d1adffdce7bdd495f30c7747164
SHA5122d71be090f74b61b0a21b6dcccd511524472a2af20d0955fb14e5197898262172d3dd3b457a5b5e4893725d26410aaa4d2557688104fe396d27874ec764af384
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Filesize
5KB
MD5b74cd307cb829a8a172a5b09adc2b850
SHA1a898025c47c7cb93c0cf4c3fb5b6ce503e5ba920
SHA2567c30857e143652a9a905aa9e3d8fecc57eee6c889f4425cd7dce0b247d8ca1c2
SHA5120cd1179ba3b21c5c200e0465009581a9da2185932d74deee732f1d185999b16b610e0db2d762aea789e907f8397efe43b1c2e2503e8799195a8a20f1cb25a68f