Analysis
-
max time kernel
147s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240419-en -
resource tags
arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system -
submitted
12/06/2024, 18:49
Behavioral task
behavioral1
Sample
2024-06-12_61304570d99fe7aaecffd49beecec94d_cryptolocker.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
2024-06-12_61304570d99fe7aaecffd49beecec94d_cryptolocker.exe
Resource
win10v2004-20240508-en
General
-
Target
2024-06-12_61304570d99fe7aaecffd49beecec94d_cryptolocker.exe
-
Size
40KB
-
MD5
61304570d99fe7aaecffd49beecec94d
-
SHA1
e3a7146e36cff679aed621cee825e133996f1bec
-
SHA256
279eeb24428ff9c5b6460b89ac51f94cbdf5fe5912b9829b13ff85f4fcb00b85
-
SHA512
e67008a20bb6256ea7eea6149b013001721670ae4bdb8969bf0134a167bbfd269566d02ff527f6ff4bc395fc295698e9d4489a4f71c7bf7da91b3766c1cc6840
-
SSDEEP
768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYabDb5:qDdFJy3QMOtEvwDpjjWMl7Tdl
Malware Config
Signatures
-
Detection of CryptoLocker Variants 6 IoCs
resource yara_rule behavioral1/memory/2236-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000c00000001227b-11.dat CryptoLocker_rule2 behavioral1/memory/2236-13-0x0000000001D30000-0x0000000001D40000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2236-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2476-18-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2476-28-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 6 IoCs
resource yara_rule behavioral1/memory/2236-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000c00000001227b-11.dat CryptoLocker_set1 behavioral1/memory/2236-13-0x0000000001D30000-0x0000000001D40000-memory.dmp CryptoLocker_set1 behavioral1/memory/2236-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2476-18-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2476-28-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
UPX dump on OEP (original entry point) 6 IoCs
resource yara_rule behavioral1/memory/2236-0-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/files/0x000c00000001227b-11.dat UPX behavioral1/memory/2236-13-0x0000000001D30000-0x0000000001D40000-memory.dmp UPX behavioral1/memory/2236-17-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/2476-18-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/2476-28-0x0000000000500000-0x0000000000510000-memory.dmp UPX -
Executes dropped EXE 1 IoCs
pid Process 2476 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2236 2024-06-12_61304570d99fe7aaecffd49beecec94d_cryptolocker.exe -
resource yara_rule behavioral1/memory/2236-0-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/files/0x000c00000001227b-11.dat upx behavioral1/memory/2236-13-0x0000000001D30000-0x0000000001D40000-memory.dmp upx behavioral1/memory/2236-17-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/2476-18-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/2476-28-0x0000000000500000-0x0000000000510000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2236 wrote to memory of 2476 2236 2024-06-12_61304570d99fe7aaecffd49beecec94d_cryptolocker.exe 28 PID 2236 wrote to memory of 2476 2236 2024-06-12_61304570d99fe7aaecffd49beecec94d_cryptolocker.exe 28 PID 2236 wrote to memory of 2476 2236 2024-06-12_61304570d99fe7aaecffd49beecec94d_cryptolocker.exe 28 PID 2236 wrote to memory of 2476 2236 2024-06-12_61304570d99fe7aaecffd49beecec94d_cryptolocker.exe 28
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-06-12_61304570d99fe7aaecffd49beecec94d_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-12_61304570d99fe7aaecffd49beecec94d_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2236 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2476
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
40KB
MD598131efd313ad10bdf7b6ecd0600cd78
SHA16db8e4d6ec504c02297c0d1ff92f0dd05ecb4150
SHA25688228f32a52678f117477e2021ab361d8e1d712c34aad7c7cee970e1d27883a5
SHA512deba179242ac7fc7ad7a36cde5219c069ba9443552ddcb660fb8fd10fd0b2e9c97ff8dfe0943437a775f7b9da5cb5268e8b63b6c6bbb1d9ed8807e17e7187c1e