Analysis
-
max time kernel
148s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
22-05-2024 02:46
Behavioral task
behavioral1
Sample
2024-05-22_ba0f9df005b2c5e9b7825a0499b212a6_cryptolocker.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-05-22_ba0f9df005b2c5e9b7825a0499b212a6_cryptolocker.exe
Resource
win10v2004-20240508-en
General
-
Target
2024-05-22_ba0f9df005b2c5e9b7825a0499b212a6_cryptolocker.exe
-
Size
40KB
-
MD5
ba0f9df005b2c5e9b7825a0499b212a6
-
SHA1
667bac22dc37d7692970a5eaeb7f5c278219557d
-
SHA256
9d3f0ba32ea2c2aea2c4ded38fbeeafa533e4b5d833800138765f6b793d2bcce
-
SHA512
84dd0893bdf049fb23537cf524070978bc1e14480b3196f58b3eafe9b63ed3d94b62d71abe95a8c80c65ee3f3448cb1f686fa5c097e9ead2fb5483908cb2af6c
-
SSDEEP
768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYan/M/:qDdFJy3QMOtEvwDpjjWMl7Tdn/S
Malware Config
Signatures
-
Detection of CryptoLocker Variants 5 IoCs
Processes:
resource yara_rule behavioral1/memory/2056-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 \Users\Admin\AppData\Local\Temp\asih.exe CryptoLocker_rule2 behavioral1/memory/2056-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2096-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2096-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
Processes:
resource yara_rule behavioral1/memory/2056-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 \Users\Admin\AppData\Local\Temp\asih.exe CryptoLocker_set1 behavioral1/memory/2056-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2096-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2096-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
UPX dump on OEP (original entry point) 5 IoCs
Processes:
resource yara_rule behavioral1/memory/2056-0-0x0000000000500000-0x0000000000510000-memory.dmp UPX \Users\Admin\AppData\Local\Temp\asih.exe UPX behavioral1/memory/2056-16-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/2096-17-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/2096-27-0x0000000000500000-0x0000000000510000-memory.dmp UPX -
Executes dropped EXE 1 IoCs
Processes:
asih.exepid process 2096 asih.exe -
Loads dropped DLL 1 IoCs
Processes:
2024-05-22_ba0f9df005b2c5e9b7825a0499b212a6_cryptolocker.exepid process 2056 2024-05-22_ba0f9df005b2c5e9b7825a0499b212a6_cryptolocker.exe -
Processes:
resource yara_rule behavioral1/memory/2056-0-0x0000000000500000-0x0000000000510000-memory.dmp upx \Users\Admin\AppData\Local\Temp\asih.exe upx behavioral1/memory/2056-16-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/2096-17-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/2096-27-0x0000000000500000-0x0000000000510000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
2024-05-22_ba0f9df005b2c5e9b7825a0499b212a6_cryptolocker.exedescription pid process target process PID 2056 wrote to memory of 2096 2056 2024-05-22_ba0f9df005b2c5e9b7825a0499b212a6_cryptolocker.exe asih.exe PID 2056 wrote to memory of 2096 2056 2024-05-22_ba0f9df005b2c5e9b7825a0499b212a6_cryptolocker.exe asih.exe PID 2056 wrote to memory of 2096 2056 2024-05-22_ba0f9df005b2c5e9b7825a0499b212a6_cryptolocker.exe asih.exe PID 2056 wrote to memory of 2096 2056 2024-05-22_ba0f9df005b2c5e9b7825a0499b212a6_cryptolocker.exe asih.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-05-22_ba0f9df005b2c5e9b7825a0499b212a6_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-22_ba0f9df005b2c5e9b7825a0499b212a6_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
-
\Users\Admin\AppData\Local\Temp\asih.exeFilesize
40KB
MD55680412cbeef7841cdd1eb7704154855
SHA13032a264c53ac83dae1b020ebf267118224055af
SHA256510bb81c907c268001c9efe533148044702c4129badd46d68bc277eba81c3388
SHA512f8065becdd5512148f586ff2bb3c3434585496a6fecc3134320496e80dc305e3a488885d7ecd3e603a018a80227c45a9ed0ac9367432b865c2091350c04755b7
-
memory/2056-0-0x0000000000500000-0x0000000000510000-memory.dmpFilesize
64KB
-
memory/2056-1-0x00000000002B0000-0x00000000002B6000-memory.dmpFilesize
24KB
-
memory/2056-2-0x00000000002B0000-0x00000000002B6000-memory.dmpFilesize
24KB
-
memory/2056-3-0x0000000000300000-0x0000000000306000-memory.dmpFilesize
24KB
-
memory/2056-16-0x0000000000500000-0x0000000000510000-memory.dmpFilesize
64KB
-
memory/2096-17-0x0000000000500000-0x0000000000510000-memory.dmpFilesize
64KB
-
memory/2096-26-0x0000000000310000-0x0000000000316000-memory.dmpFilesize
24KB
-
memory/2096-19-0x00000000004B0000-0x00000000004B6000-memory.dmpFilesize
24KB
-
memory/2096-27-0x0000000000500000-0x0000000000510000-memory.dmpFilesize
64KB