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Analysis
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max time kernel
139s -
max time network
164s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
05/01/2024, 05:51
Static task
static1
Behavioral task
behavioral1
Sample
2024-01-01_e09fe5f2db0f54a6f8044dbc74831ef3_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-01-01_e09fe5f2db0f54a6f8044dbc74831ef3_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-01-01_e09fe5f2db0f54a6f8044dbc74831ef3_cryptolocker.exe
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Size
50KB
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MD5
e09fe5f2db0f54a6f8044dbc74831ef3
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SHA1
545d0b86e59b0c8d354b6a9b0852facc0cb2ae74
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SHA256
1357388fa41030ad1bd9f0f36259bd0c33d583032d3608acdf372b049f5617c6
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SHA512
ae2cb9f910ef06006b922acab911d7c5027c1fb97a261085b888569373c3c495880aae3e80c5ee18f807102800821cb401b87e99ea2bc58beb1b3ae7c759a1c9
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SSDEEP
768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpjeJQ7suIlsw92KFXpQenhRT:V6QFElP6n+gMQMOtEvwDpjeJQ7pojkQT
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-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International\Geo\Nation 2024-01-01_e09fe5f2db0f54a6f8044dbc74831ef3_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 5016 asih.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 1772 wrote to memory of 5016 1772 2024-01-01_e09fe5f2db0f54a6f8044dbc74831ef3_cryptolocker.exe 91 PID 1772 wrote to memory of 5016 1772 2024-01-01_e09fe5f2db0f54a6f8044dbc74831ef3_cryptolocker.exe 91 PID 1772 wrote to memory of 5016 1772 2024-01-01_e09fe5f2db0f54a6f8044dbc74831ef3_cryptolocker.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-01-01_e09fe5f2db0f54a6f8044dbc74831ef3_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-01_e09fe5f2db0f54a6f8044dbc74831ef3_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1772 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:5016
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
50KB
MD5b314b9ded50436d18bd35bd9fe4bad4f
SHA1ea9b61cca776d4e4fd160d798fef5857a1d6a031
SHA256ddf87f4feeccb00a2788f65d191231f765065b0fa40a3212755c725f64bd768f
SHA5128db620235dc9a13de037dec6fb3854d639a8ccb62b21774859b3fdb11653858c7fa51fcd2ce698c4f942a339744e12d1859e5e92adb149c291c00d7432771a88
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Filesize
26KB
MD59b4c0444cb9d140df0722b7c42141833
SHA1af1f7e358e5b3efc967a426bdf5be1208376cfc5
SHA25606a8a7559a8cfc2d4aa72929f430d312e35b5b3cbd81a8372796ba853bea2fd6
SHA5125794ccf5e22a025e555f4d87be8ce5a3d1b89fb154e33100ad4d7e0367aacf099a5188ea73669fb142681d888a8f081934378dbbe49c5714b090717aba0f801a