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Analysis
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max time kernel
126s -
max time network
134s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
15/05/2024, 11:43
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-15_1fabe94190a787efe535eedd889f69fe_cryptolocker.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-05-15_1fabe94190a787efe535eedd889f69fe_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-15_1fabe94190a787efe535eedd889f69fe_cryptolocker.exe
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Size
34KB
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MD5
1fabe94190a787efe535eedd889f69fe
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SHA1
301807d3fa2bbb72ca1a3b6c4640e047bb7c61e5
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SHA256
6e4afaa07eede316422448b00d80461570a32c7bfb91b061d2971f858a11a972
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SHA512
e984083027696ce8f17ef9f90317783a2d8c9c51540329ac6e1b9d87cbb20809070e7f07aa29d8d31b0df2c9a3b27e85199278846c0e6761db0cd6bd1337bb47
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SSDEEP
768:bxNQIE0eBhkL2Fo1CCwgfjOg9Arbkzos5M4yQPv:bxNrC7kYo1Fxf2rYA7QX
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x0009000000023547-12.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-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation 2024-05-15_1fabe94190a787efe535eedd889f69fe_cryptolocker.exe Key value queried \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation pissa.exe -
Executes dropped EXE 1 IoCs
pid Process 4288 pissa.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 2372 wrote to memory of 4288 2372 2024-05-15_1fabe94190a787efe535eedd889f69fe_cryptolocker.exe 89 PID 2372 wrote to memory of 4288 2372 2024-05-15_1fabe94190a787efe535eedd889f69fe_cryptolocker.exe 89 PID 2372 wrote to memory of 4288 2372 2024-05-15_1fabe94190a787efe535eedd889f69fe_cryptolocker.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-15_1fabe94190a787efe535eedd889f69fe_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-15_1fabe94190a787efe535eedd889f69fe_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2372 -
C:\Users\Admin\AppData\Local\Temp\pissa.exe"C:\Users\Admin\AppData\Local\Temp\pissa.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
PID:4288
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3452,i,16710585221322798697,8586257254049248207,262144 --variations-seed-version --mojo-platform-channel-handle=3456 /prefetch:81⤵PID:440
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
35KB
MD546b77d9e413b194390aa19b7ff222583
SHA1ca5de428e736890c23b5b17a953091b83ac2ab7a
SHA25681c762bec4e73cbd4f01dbc21f7c2b775d196a7a36c449f34384667215e2593c
SHA512fda2a02948b6d7a591c00e7b5f0a5e5f2badfd27603fef8791f93c79ef81dffed58c5dcc8f577e804564c51fff174b7268208831f93398d4d3d4d1b9a9d13cec
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Filesize
261B
MD511bed1c06d8f4680de5154405be20365
SHA19c3095f1aa0b02924c23592d1e86673bb0081ca1
SHA256bcc0582f122db6e61d2aa06628275f5b882c01ca037699427d0f68e48d744666
SHA512050bb38ff33ab7e8e8aa647cffb26d2b0a54074340e79f0acf0db8f076c421505f1e4c1ce169d55aeacd4085ce258a78d24327c9393650642963beb130517da8