a563e74c8a8b58cd5fb7e8791761e59bd9b03d1b53811510643b7aac3566e17f

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25-01-2024 15:38

Target

2024-01-25_7b0d05c22416cf705f52e2f152c3aec0_cryptolocker.exe
Size

50KB
MD5

7b0d05c22416cf705f52e2f152c3aec0
SHA1

58d000ccf84d721888232ff84bf3b92ea3b20fdd
SHA256

a563e74c8a8b58cd5fb7e8791761e59bd9b03d1b53811510643b7aac3566e17f
SHA512

658acc37cf89a7aeb18cb4c188093d5d83a54548e5369bf50788f21115b6fc8bcf1120631d07139974939949674aad732e6c558543c94960bb261facbd9910d4
SSDEEP

768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9gE1NI2:bIDOw9a0DwitDZzwI2

Score

9^/10

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\lossy.exe	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

Processes:

lossy.exe

pid process

2816 lossy.exe
Loads dropped DLL 1 IoCs

Processes:

2024-01-25_7b0d05c22416cf705f52e2f152c3aec0_cryptolocker.exe

pid process

2248 2024-01-25_7b0d05c22416cf705f52e2f152c3aec0_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2816	lossy.exe

pid	process
2248	2024-01-25_7b0d05c22416cf705f52e2f152c3aec0_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-01-25_7b0d05c22416cf705f52e2f152c3aec0_cryptolocker.exe

description	pid	process	target process
PID 2248 wrote to memory of 2816	2248	2024-01-25_7b0d05c22416cf705f52e2f152c3aec0_cryptolocker.exe	lossy.exe
PID 2248 wrote to memory of 2816	2248	2024-01-25_7b0d05c22416cf705f52e2f152c3aec0_cryptolocker.exe	lossy.exe
PID 2248 wrote to memory of 2816	2248	2024-01-25_7b0d05c22416cf705f52e2f152c3aec0_cryptolocker.exe	lossy.exe
PID 2248 wrote to memory of 2816	2248	2024-01-25_7b0d05c22416cf705f52e2f152c3aec0_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:2816

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

\Users\Admin\AppData\Local\Temp\lossy.exe
Filesize
51KB

MD5
3722191d3b0eaae3b2bedfe7c4b46fc1

SHA1
d637e36ec81ad8dc54f07950ff532e2b46efca78

SHA256
cd6842a88cfcfc89b9383b3e55fc7636803e9cf852367139b50c23b3583ebab7

SHA512
5597ec0f366d76b382b440884a78bddae976d7c8a22e59d0cad499d0a99cf23889da27e0835331525c61b0cfa94003077ba2f63fdbe35982df25e9f3cb437d8f

Download Submit
memory/2248-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2248-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2248-1-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2816-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download