Analysis
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max time kernel
122s -
max time network
128s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
01/06/2024, 20:04
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-01_6ca26d69ffe24566a19c28869500b828_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-06-01_6ca26d69ffe24566a19c28869500b828_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-06-01_6ca26d69ffe24566a19c28869500b828_cryptolocker.exe
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Size
37KB
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MD5
6ca26d69ffe24566a19c28869500b828
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SHA1
9d45579b8edebc6074f85f89870bc503736bd585
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SHA256
2dbd3499a95db5520d651f827c94496c89382759cf910c69ec27cc320710d391
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SHA512
338291199380940056088556d56f35afb54ee3618305abbd447038514590b53170909ea50c9915bd51e3a2aada074d94f08dd2aa1f4f904a179aa2f3ffe0c5ef
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SSDEEP
384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunRSyc0:btB9g/WItCSsAGjX7e9N0hunRvc0
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000b0000000155e2-10.dat CryptoLocker_rule2 -
Executes dropped EXE 1 IoCs
pid Process 2116 gewos.exe -
Loads dropped DLL 1 IoCs
pid Process 2740 2024-06-01_6ca26d69ffe24566a19c28869500b828_cryptolocker.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of UnmapMainImage 2 IoCs
pid Process 2740 2024-06-01_6ca26d69ffe24566a19c28869500b828_cryptolocker.exe 2116 gewos.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2740 wrote to memory of 2116 2740 2024-06-01_6ca26d69ffe24566a19c28869500b828_cryptolocker.exe 28 PID 2740 wrote to memory of 2116 2740 2024-06-01_6ca26d69ffe24566a19c28869500b828_cryptolocker.exe 28 PID 2740 wrote to memory of 2116 2740 2024-06-01_6ca26d69ffe24566a19c28869500b828_cryptolocker.exe 28 PID 2740 wrote to memory of 2116 2740 2024-06-01_6ca26d69ffe24566a19c28869500b828_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-01_6ca26d69ffe24566a19c28869500b828_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-01_6ca26d69ffe24566a19c28869500b828_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2740 -
C:\Users\Admin\AppData\Local\Temp\gewos.exe"C:\Users\Admin\AppData\Local\Temp\gewos.exe"2⤵
- Executes dropped EXE
- Suspicious use of UnmapMainImage
PID:2116
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
37KB
MD5c3764873bd8a61ddfac7b2567dc805a9
SHA1223ef2d4277a9c572c5e09da0f91bd8182e9f755
SHA256261ed4c7e64d90816e079122e2e8e891cb75fc513da9c226e94d0f171779c9eb
SHA512616b0a624773a94d1019783ea4d4046c4473d2188792829c889d308b1e195823b02937c639eb570078f69ddd04c5a9ca73a5723ce0886cd0ad30d43fcf2b4ca4