Analysis
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max time kernel
150s -
max time network
152s -
platform
windows7_x64 -
resource
win7-20231020-en -
resource tags
arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system -
submitted
06/11/2023, 20:44
Behavioral task
behavioral1
Sample
NEAS.2023-09-28_6e562d07f07ac338f3773fc6babdfbd0_cryptolocker.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
NEAS.2023-09-28_6e562d07f07ac338f3773fc6babdfbd0_cryptolocker.exe
Resource
win10v2004-20231025-en
General
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Target
NEAS.2023-09-28_6e562d07f07ac338f3773fc6babdfbd0_cryptolocker.exe
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Size
75KB
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MD5
6e562d07f07ac338f3773fc6babdfbd0
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SHA1
fdb78a19b4bcaa817ef92c4c8af037a572053d22
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SHA256
e0896bcd9c31a2a99407f7ae8f0601c6d035de501c074c8ebac11076c1b60059
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SHA512
036d0f1ec996b9eada30d86ca58a2a7e44fb7ca90c34737054e42482b8f94cb2071f1db9012c831a78294589b9f3a1d5cc708f868102c741161c101ae12895bf
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SSDEEP
1536:zj+soPSMOtEvwDpj4ktBl01hJ0tq1kyYAf:zCsanOtEvwDpjQ
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2956 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 1272 NEAS.2023-09-28_6e562d07f07ac338f3773fc6babdfbd0_cryptolocker.exe -
resource yara_rule behavioral1/memory/1272-0-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/files/0x000e00000001201d-11.dat upx behavioral1/memory/1272-15-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/2956-16-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/files/0x000e00000001201d-14.dat upx behavioral1/files/0x000e00000001201d-25.dat upx behavioral1/memory/2956-26-0x0000000000500000-0x0000000000510000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1272 wrote to memory of 2956 1272 NEAS.2023-09-28_6e562d07f07ac338f3773fc6babdfbd0_cryptolocker.exe 28 PID 1272 wrote to memory of 2956 1272 NEAS.2023-09-28_6e562d07f07ac338f3773fc6babdfbd0_cryptolocker.exe 28 PID 1272 wrote to memory of 2956 1272 NEAS.2023-09-28_6e562d07f07ac338f3773fc6babdfbd0_cryptolocker.exe 28 PID 1272 wrote to memory of 2956 1272 NEAS.2023-09-28_6e562d07f07ac338f3773fc6babdfbd0_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\NEAS.2023-09-28_6e562d07f07ac338f3773fc6babdfbd0_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\NEAS.2023-09-28_6e562d07f07ac338f3773fc6babdfbd0_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1272 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2956
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
75KB
MD55a95c42b3342278bfff71523b6fe7cd8
SHA1e352d82a78dc6e728050a036bec809977a776797
SHA256e5582820a55eca90f5ea4220f1bca380470d1dc3644070c7d0fe969c98072f9e
SHA51289a560046cf12641676360ef4cfeeff7505eb96f5a4054b425491b779c805512370d0ae8dbc7a253215d25ff13348f44f9e332e09db8d466ab638249a54b520d
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Filesize
75KB
MD55a95c42b3342278bfff71523b6fe7cd8
SHA1e352d82a78dc6e728050a036bec809977a776797
SHA256e5582820a55eca90f5ea4220f1bca380470d1dc3644070c7d0fe969c98072f9e
SHA51289a560046cf12641676360ef4cfeeff7505eb96f5a4054b425491b779c805512370d0ae8dbc7a253215d25ff13348f44f9e332e09db8d466ab638249a54b520d
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Filesize
75KB
MD55a95c42b3342278bfff71523b6fe7cd8
SHA1e352d82a78dc6e728050a036bec809977a776797
SHA256e5582820a55eca90f5ea4220f1bca380470d1dc3644070c7d0fe969c98072f9e
SHA51289a560046cf12641676360ef4cfeeff7505eb96f5a4054b425491b779c805512370d0ae8dbc7a253215d25ff13348f44f9e332e09db8d466ab638249a54b520d