1e695056cf51fdb531106669b80af6dc19286dce98f8378c79a16facaf9a4a5f

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
21-05-2024 16:09

Target

2024-05-21_fcf13a64d77f3e32c6b133a03c6e9dfd_cryptolocker.exe
Size

42KB
MD5

fcf13a64d77f3e32c6b133a03c6e9dfd
SHA1

d34bde97f5b5d42735ff216d0ad4f714354a1aaf
SHA256

1e695056cf51fdb531106669b80af6dc19286dce98f8378c79a16facaf9a4a5f
SHA512

749055df9956f8c0797db4b395ed69b48a34c5dfc13e3ba549d62f791aa6f4a5182767583c5fa689398706f32a7b963b0309ce5a1f7bf15f8dae6e30b554984d
SSDEEP

768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAqtH:bCDOw9aMDooc+vAqtH

Score

9^/10

Detection of CryptoLocker Variants 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3004-0-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\lossy.exe	CryptoLocker_rule2
behavioral1/memory/3004-15-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1304-16-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1304-26-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

Processes:

lossy.exe

pid process

1304 lossy.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-21_fcf13a64d77f3e32c6b133a03c6e9dfd_cryptolocker.exe

pid process

3004 2024-05-21_fcf13a64d77f3e32c6b133a03c6e9dfd_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1304	lossy.exe

pid	process
3004	2024-05-21_fcf13a64d77f3e32c6b133a03c6e9dfd_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-21_fcf13a64d77f3e32c6b133a03c6e9dfd_cryptolocker.exe

description	pid	process	target process
PID 3004 wrote to memory of 1304	3004	2024-05-21_fcf13a64d77f3e32c6b133a03c6e9dfd_cryptolocker.exe	lossy.exe
PID 3004 wrote to memory of 1304	3004	2024-05-21_fcf13a64d77f3e32c6b133a03c6e9dfd_cryptolocker.exe	lossy.exe
PID 3004 wrote to memory of 1304	3004	2024-05-21_fcf13a64d77f3e32c6b133a03c6e9dfd_cryptolocker.exe	lossy.exe
PID 3004 wrote to memory of 1304	3004	2024-05-21_fcf13a64d77f3e32c6b133a03c6e9dfd_cryptolocker.exe	lossy.exe

C:\Users\Admin\AppData\Local\Temp\lossy.exe
"C:\Users\Admin\AppData\Local\Temp\lossy.exe"
2⤵
- Executes dropped EXE
PID:1304

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

\Users\Admin\AppData\Local\Temp\lossy.exe
Filesize
42KB

MD5
7a02f2d61a2ab3062f16d4da15213ab9

SHA1
a38f91f5cde088d1ac25d3c34e4b2a3ff15c64a7

SHA256
3a3c16c337cc1d3541a36b420369a52b5dab99fb1281bf2ad407349a037d3035

SHA512
3db25e911a52d676df716197cb26343880662a5cfdb656de69c9abcbd1ae4696fda0bf4e194a9439f9b6b434332ec36c4de30507a10d424933c968413081b8db

Download Submit
memory/1304-16-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/1304-18-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/1304-25-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1304-26-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/3004-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/3004-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3004-2-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/3004-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3004-15-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download