483ccb7581b25f10774ea71f89cc32c788adcaf21a332cf8ef3b6788467f42e3

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
29/01/2024, 04:27

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General

Target

2024-01-29_2c3daeee9d2bfaf1dea1fc21d44f0eb1_cryptolocker.exe
Size

70KB
MD5

2c3daeee9d2bfaf1dea1fc21d44f0eb1
SHA1

01db695de3a5733de3866dec26dda031235c91c4
SHA256

483ccb7581b25f10774ea71f89cc32c788adcaf21a332cf8ef3b6788467f42e3
SHA512

6299e990646f37b3c28d9e07442092598d1558fbd592752a74619dc9c77dc12ef5a7bb518a55d72c02b18fb9b17ec596de54c63a62af6f8b436a6fae5d12bd6f
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUtbgz:DW60sllyWOtEvwDpjwF85C

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2968-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000014395-16.dat	CryptoLocker_rule2
behavioral1/memory/2968-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2192-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2968-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0009000000014395-16.dat	CryptoLocker_set1
behavioral1/memory/2968-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2192-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2192	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2968	2024-01-29_2c3daeee9d2bfaf1dea1fc21d44f0eb1_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2968 wrote to memory of 2192	2968	2024-01-29_2c3daeee9d2bfaf1dea1fc21d44f0eb1_cryptolocker.exe	28
PID 2968 wrote to memory of 2192	2968	2024-01-29_2c3daeee9d2bfaf1dea1fc21d44f0eb1_cryptolocker.exe	28
PID 2968 wrote to memory of 2192	2968	2024-01-29_2c3daeee9d2bfaf1dea1fc21d44f0eb1_cryptolocker.exe	28
PID 2968 wrote to memory of 2192	2968	2024-01-29_2c3daeee9d2bfaf1dea1fc21d44f0eb1_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-29_2c3daeee9d2bfaf1dea1fc21d44f0eb1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-29_2c3daeee9d2bfaf1dea1fc21d44f0eb1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2968
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2192

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
70KB

MD5
e3d14f25955ec96e4d7b3df0f1eaf3c5

SHA1
3d5646a424ef51366b660d00951aaafb28f40a85

SHA256
eae25e2274e77d8d94882562ddac85c321aa0bcd2baff3f18219ceebc91ee27b

SHA512
be6b48ad40388dce22058aa0030befa6d162dd97060eef0d5447f39fae497704d70eb4adf23f2f7afafde5805336777b2562be2ea137aa8919295429cb82d9cc

Download Submit
memory/2192-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2192-19-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/2192-23-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2968-1-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2968-0-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2968-2-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2968-9-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2968-14-0x0000000002220000-0x000000000222B000-memory.dmp

Filesize
44KB

Download
memory/2968-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download