Analysis
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max time kernel
145s -
max time network
158s -
platform
windows10-2004_x64 -
resource
win10v2004-20231023-en -
resource tags
arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system -
submitted
06/11/2023, 19:07
Static task
static1
Behavioral task
behavioral1
Sample
NEAS.2023-09-28_5b4ba0736de2c672a4038f1a50e09c39_cryptolocker.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
NEAS.2023-09-28_5b4ba0736de2c672a4038f1a50e09c39_cryptolocker.exe
Resource
win10v2004-20231023-en
General
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Target
NEAS.2023-09-28_5b4ba0736de2c672a4038f1a50e09c39_cryptolocker.exe
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Size
48KB
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MD5
5b4ba0736de2c672a4038f1a50e09c39
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SHA1
9f130eb1dfbd05bc779877e56c4bc48fd338151c
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SHA256
27e1ea9c0769d140e25bafbb989c48b8db08132ec71b17436bb11d6366a3fed8
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SHA512
9659daa4f0cfa6e8647fb984c4a21cfe67d9161cea25cccf122a5b529c55b2c5c61f6333b677687f20ba13803d69757610b1a4ac06cce858dd0491a3272dbffe
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SSDEEP
1536:qmbhXDmjr5MOtEvwDpj5cDtKkQZQRKb6Impc:BbdDmjr+OtEvwDpjMa
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-1-5-21-3125601242-331447593-1512828465-1000\Control Panel\International\Geo\Nation NEAS.2023-09-28_5b4ba0736de2c672a4038f1a50e09c39_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 1148 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 3212 wrote to memory of 1148 3212 NEAS.2023-09-28_5b4ba0736de2c672a4038f1a50e09c39_cryptolocker.exe 94 PID 3212 wrote to memory of 1148 3212 NEAS.2023-09-28_5b4ba0736de2c672a4038f1a50e09c39_cryptolocker.exe 94 PID 3212 wrote to memory of 1148 3212 NEAS.2023-09-28_5b4ba0736de2c672a4038f1a50e09c39_cryptolocker.exe 94
Processes
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C:\Users\Admin\AppData\Local\Temp\NEAS.2023-09-28_5b4ba0736de2c672a4038f1a50e09c39_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\NEAS.2023-09-28_5b4ba0736de2c672a4038f1a50e09c39_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3212 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:1148
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
48KB
MD5f2cbe867c57210bb85c2c75087d74027
SHA11f016719e738fc088068a0da6b355f44b8725bda
SHA256a719b121bed63b006908c8ba371acbe3f26743bcd1914fde58be4cd31e905513
SHA512081b71f5ff267aab8c503df3d7027eff071857b7ba38c949980e19c4aeeb5e27b1ae5c52d4aff9ca97fe0a6f8c2c3214e35e6b2d2e2e7fd3deb42aaca7a8819e
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Filesize
48KB
MD5f2cbe867c57210bb85c2c75087d74027
SHA11f016719e738fc088068a0da6b355f44b8725bda
SHA256a719b121bed63b006908c8ba371acbe3f26743bcd1914fde58be4cd31e905513
SHA512081b71f5ff267aab8c503df3d7027eff071857b7ba38c949980e19c4aeeb5e27b1ae5c52d4aff9ca97fe0a6f8c2c3214e35e6b2d2e2e7fd3deb42aaca7a8819e
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Filesize
48KB
MD5f2cbe867c57210bb85c2c75087d74027
SHA11f016719e738fc088068a0da6b355f44b8725bda
SHA256a719b121bed63b006908c8ba371acbe3f26743bcd1914fde58be4cd31e905513
SHA512081b71f5ff267aab8c503df3d7027eff071857b7ba38c949980e19c4aeeb5e27b1ae5c52d4aff9ca97fe0a6f8c2c3214e35e6b2d2e2e7fd3deb42aaca7a8819e