Analysis
-
max time kernel
150s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
10/06/2024, 04:39
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-10_1e76ad4cde651058849b8c744e7fdd33_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-06-10_1e76ad4cde651058849b8c744e7fdd33_cryptolocker.exe
Resource
win10v2004-20240426-en
General
-
Target
2024-06-10_1e76ad4cde651058849b8c744e7fdd33_cryptolocker.exe
-
Size
38KB
-
MD5
1e76ad4cde651058849b8c744e7fdd33
-
SHA1
911b3333cf1e2ea31521bfdb48c6ca0980d528d0
-
SHA256
0f898512928d74138db447ba04552267c9344325f6d1e23f15812cf2275cea6f
-
SHA512
3dcbff7f82c9f92e1b325d5f137bb31f6d2b159dd53547a8f87c7382a2b03dde37ba05354886e90286fc2de5e21cbcc0ce89e8ab28c2a77072287a770d606eb7
-
SSDEEP
768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGp/YIm7wm0UpD:o1KhxqwtdgI2MyzNORQtOflIwoHNV2Xq
Malware Config
Signatures
-
Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000d000000012346-10.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000d000000012346-10.dat CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 2476 hurok.exe -
Loads dropped DLL 1 IoCs
pid Process 2012 2024-06-10_1e76ad4cde651058849b8c744e7fdd33_cryptolocker.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Suspicious use of UnmapMainImage 2 IoCs
pid Process 2012 2024-06-10_1e76ad4cde651058849b8c744e7fdd33_cryptolocker.exe 2476 hurok.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2012 wrote to memory of 2476 2012 2024-06-10_1e76ad4cde651058849b8c744e7fdd33_cryptolocker.exe 28 PID 2012 wrote to memory of 2476 2012 2024-06-10_1e76ad4cde651058849b8c744e7fdd33_cryptolocker.exe 28 PID 2012 wrote to memory of 2476 2012 2024-06-10_1e76ad4cde651058849b8c744e7fdd33_cryptolocker.exe 28 PID 2012 wrote to memory of 2476 2012 2024-06-10_1e76ad4cde651058849b8c744e7fdd33_cryptolocker.exe 28
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-06-10_1e76ad4cde651058849b8c744e7fdd33_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-10_1e76ad4cde651058849b8c744e7fdd33_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2012 -
C:\Users\Admin\AppData\Local\Temp\hurok.exe"C:\Users\Admin\AppData\Local\Temp\hurok.exe"2⤵
- Executes dropped EXE
- Suspicious use of UnmapMainImage
PID:2476
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
38KB
MD59ffd4ab5e1630a2fe263fb3b821d838f
SHA18ba826a143f6440b1ef48ac33f2f6b161b0103c9
SHA256e5e682aff45b0c9140c5e70b22b8076bbbba9b99aab542482467582ef0dd65c0
SHA5126b3d9b5cf72382786c5a75af2acc4b277de67fc3ec39dbcfb5e9132289a71672a972e48109d8f7424e6aef2e6659b88c3550ce60dd58f94e5c16910bc53c0025