Analysis
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max time kernel
133s -
max time network
125s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
02/06/2024, 04:47
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-02_e6332a919f6d13faa300c658360d47e2_cryptolocker.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
2024-06-02_e6332a919f6d13faa300c658360d47e2_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-02_e6332a919f6d13faa300c658360d47e2_cryptolocker.exe
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Size
37KB
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MD5
e6332a919f6d13faa300c658360d47e2
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SHA1
f6b32e06b64c129a9c696df7382de130bf5be0a7
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SHA256
057a66d3ff9ba0c8ebeb0d5e72f5a5533a92ffec743302a2464e48c4c5b66d4e
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SHA512
851c69a7ad9b2e304cc2ec85a02e5e846b51d1fedd396cd83314449410ef28139f003ee2ecd7e70339db1b2e72eb83aa374958447c41bac42528959137530111
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SSDEEP
384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunRSyP:btB9g/WItCSsAGjX7e9N0hunRvP
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x00080000000233e9-12.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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation 2024-06-02_e6332a919f6d13faa300c658360d47e2_cryptolocker.exe Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation gewos.exe -
Executes dropped EXE 1 IoCs
pid Process 4636 gewos.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 3452 wrote to memory of 4636 3452 2024-06-02_e6332a919f6d13faa300c658360d47e2_cryptolocker.exe 82 PID 3452 wrote to memory of 4636 3452 2024-06-02_e6332a919f6d13faa300c658360d47e2_cryptolocker.exe 82 PID 3452 wrote to memory of 4636 3452 2024-06-02_e6332a919f6d13faa300c658360d47e2_cryptolocker.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-02_e6332a919f6d13faa300c658360d47e2_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-02_e6332a919f6d13faa300c658360d47e2_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3452 -
C:\Users\Admin\AppData\Local\Temp\gewos.exe"C:\Users\Admin\AppData\Local\Temp\gewos.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
PID:4636
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
37KB
MD507f117d9d0fc98289ea59ac0065219ef
SHA1fc64ff823c7284aaf35e9c86e1764b12ba8ae19b
SHA256567bae3e4a48fde04297939b3fe5b34c8c3ef1c47dba555bc33905ba0b20c9ff
SHA512da93f5679a459b20e0bc262a1c27635f74228c7bd56774d7a05bf8619b41f5cc968f77073ac79b9c86095c18aab805d5e02187a580ac804bc29c28f4ded03d11
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Filesize
185B
MD5341f0d964572da44a1c9650341665037
SHA15003d7dc9b5d6dbbfb37403c8222ba83fa3d4b0f
SHA256cb213ed9ca3a1892286c1fd6552b8ba339f4e62a2d72c9c9151c4848edee4ee3
SHA512a374a3d0c18618c9550b7cf88ce4005f42af135e46c08d08c1be7b3f3012f1184fd82f126168f280da7ead6fbddd5bebdc55547bff3d7c6a440d6f9746479353