b816666e628c0c7411432f7d4c44c33a57382e0f497bc3aa5b1a71a06d4528f3

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
09/06/2024, 04:30

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General

Target

2024-06-09_7346d904ff32e39c7f24e7dbc69cd434_cryptolocker.exe
Size

47KB
MD5

7346d904ff32e39c7f24e7dbc69cd434
SHA1

1fa5f14e71eb320418f0807b109a1ad78bb1f18e
SHA256

b816666e628c0c7411432f7d4c44c33a57382e0f497bc3aa5b1a71a06d4528f3
SHA512

e3a9af077987d4b7551613527918a5ff37e82d00bfb5e0f45033d37c0c47e5da6310af8eb1cfa16981652f766727d5237432208efc268980c3100f9d1223bb15
SSDEEP

768:79inqyNR/QtOOtEvwDpjBKccJVODvy3khA:79mqyNhQMOtEvwDpjBzckqyA

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/1700-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1700-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d00000001342e-14.dat	CryptoLocker_rule2
behavioral1/memory/2520-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/1700-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1700-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000d00000001342e-14.dat	CryptoLocker_set1
behavioral1/memory/2520-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2520	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1700	2024-06-09_7346d904ff32e39c7f24e7dbc69cd434_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 1700 wrote to memory of 2520	1700	2024-06-09_7346d904ff32e39c7f24e7dbc69cd434_cryptolocker.exe	28
PID 1700 wrote to memory of 2520	1700	2024-06-09_7346d904ff32e39c7f24e7dbc69cd434_cryptolocker.exe	28
PID 1700 wrote to memory of 2520	1700	2024-06-09_7346d904ff32e39c7f24e7dbc69cd434_cryptolocker.exe	28
PID 1700 wrote to memory of 2520	1700	2024-06-09_7346d904ff32e39c7f24e7dbc69cd434_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-09_7346d904ff32e39c7f24e7dbc69cd434_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-09_7346d904ff32e39c7f24e7dbc69cd434_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1700
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2520

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
47KB

MD5
5b8ca0a0e0c3e06cae5313411fa0939f

SHA1
c0fa954f2102d754982e7b4c3c22a2698365c311

SHA256
4d233f318502e4911edf1d65dedd02cf0e1504c58d7dec8cbafae2e99f77e918

SHA512
d771d2b3db1e014ccd1e59109038883e81fd64a6720956e64140f3e5baa4d493a9e18b0ad14d3396332d2353dc9d33be79ed7c69076492b22914022da88dfc02

Download Submit
memory/1700-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1700-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1700-3-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/1700-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1700-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2520-18-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2520-25-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2520-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download