3fac1cc568556cb3a475bec847505491569949477765c581b74c0cb0b908a7c8

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240319-en
resource tags

arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
submitted
19/04/2024, 04:13

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General

Target

2024-04-19_90976c7ab5f71e51e60550eb5eb266e0_cryptolocker.exe
Size

40KB
MD5

90976c7ab5f71e51e60550eb5eb266e0
SHA1

12123301040bbc77694251d04a070a4b90104824
SHA256

3fac1cc568556cb3a475bec847505491569949477765c581b74c0cb0b908a7c8
SHA512

f2c6cc5e8113b3d9b84bdddb5724101bf7d2b705828398a9907f40e349a0da7178cc0820e3891deb8f1098d48408187f13b4b42acb7fbcf62981be4a317c9224
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLenQLJJEykrE:ZzFbxmLPWQMOtEvwDpjLeU3EbE

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b0000000121cc-11.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2320	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1640	2024-04-19_90976c7ab5f71e51e60550eb5eb266e0_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 1640 wrote to memory of 2320	1640	2024-04-19_90976c7ab5f71e51e60550eb5eb266e0_cryptolocker.exe	28
PID 1640 wrote to memory of 2320	1640	2024-04-19_90976c7ab5f71e51e60550eb5eb266e0_cryptolocker.exe	28
PID 1640 wrote to memory of 2320	1640	2024-04-19_90976c7ab5f71e51e60550eb5eb266e0_cryptolocker.exe	28
PID 1640 wrote to memory of 2320	1640	2024-04-19_90976c7ab5f71e51e60550eb5eb266e0_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-19_90976c7ab5f71e51e60550eb5eb266e0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-19_90976c7ab5f71e51e60550eb5eb266e0_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1640
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2320

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

\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
40KB

MD5
ffc4d77df61a4f8b6154dce84107d597

SHA1
a757f3552a9d0dc08f99713600fb82e2fb106819

SHA256
d8404b2513f0e7c6bbd50920e945acd43d1e18d98c798fd76841b25c7d8e9abe

SHA512
3362916f54ad951d2667dfa43092bd68e95257a8d8c178429d15132fb73be9f08a3c57aafdea555e2cb4bb40711489a9cc32dcd9c02fa3ff6bb42a26b3b87c78

Download Submit
memory/1640-0-0x0000000000230000-0x0000000000233000-memory.dmp

Filesize
12KB

Download
memory/1640-1-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/1640-3-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/1640-2-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2320-16-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/2320-17-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/2320-20-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2320-25-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download