b45a76b06f2cb7609fa32ef8c7a6c28afcaefa121db01be2a5cdb666dfa18b19

Analysis

max time kernel
148s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25-01-2024 17:30

Target

2024-01-25_6a2dc81df197622c4e2317495d8799f0_cryptolocker.exe
Size

39KB
MD5

6a2dc81df197622c4e2317495d8799f0
SHA1

98e8679cdeff0bd8f20e9cfff53c109f3004dc56
SHA256

b45a76b06f2cb7609fa32ef8c7a6c28afcaefa121db01be2a5cdb666dfa18b19
SHA512

f4a7915198d39886a2fe03822918b027b70ffa841112a0b12c7294049344f25a8f2c329889c56d17f544e026f55b343d3ca1446e5f4405c48b29964e21fa0c49
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6Dy8POKG:bIDOw9a0Dwo3P1ojvUSDhY

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

2860 lossy.exe
Loads dropped DLL 1 IoCs

Processes:

2024-01-25_6a2dc81df197622c4e2317495d8799f0_cryptolocker.exe

pid process

776 2024-01-25_6a2dc81df197622c4e2317495d8799f0_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2860	lossy.exe

pid	process
776	2024-01-25_6a2dc81df197622c4e2317495d8799f0_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-01-25_6a2dc81df197622c4e2317495d8799f0_cryptolocker.exe

description	pid	process	target process
PID 776 wrote to memory of 2860	776	2024-01-25_6a2dc81df197622c4e2317495d8799f0_cryptolocker.exe	lossy.exe
PID 776 wrote to memory of 2860	776	2024-01-25_6a2dc81df197622c4e2317495d8799f0_cryptolocker.exe	lossy.exe
PID 776 wrote to memory of 2860	776	2024-01-25_6a2dc81df197622c4e2317495d8799f0_cryptolocker.exe	lossy.exe
PID 776 wrote to memory of 2860	776	2024-01-25_6a2dc81df197622c4e2317495d8799f0_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:2860

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
39KB

MD5
96f4e9b4dcce762403671976b360b5a6

SHA1
6bc3ce44c731ca985bcc66579fac310ed1515b98

SHA256
5967a67c5521f4ccfd47f800b739251f0436f9c4b5accf99f1fc07ee768477b8

SHA512
74a642b9e4417f4e13abacb15d8314f526a92b6cbb61a5aeba0bf38c51dad205c08b1c432113e3ec658efb1c7a07c86eec73237732b839427ef8ca0bd4de1702

Download Submit
memory/776-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/776-2-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/776-1-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/2860-15-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2860-16-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download