2c7d9b78cef31dad96ec65666a37945dbd9744048f73427205e062d293405595

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29/04/2024, 20:04

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General

Target

2024-04-29_ecf79c57a91046b3ee4910305f0ba4b4_cryptolocker.exe
Size

41KB
MD5

ecf79c57a91046b3ee4910305f0ba4b4
SHA1

582188c89043909e16d500c992f813ab8b79874a
SHA256

2c7d9b78cef31dad96ec65666a37945dbd9744048f73427205e062d293405595
SHA512

f98f01d070713c3fbe3a535bbd022d20b63028fe3c78b91fff3993c78dff62745875012790e1b68a8b103d9806e8074297c0cbae80b616a1741b82f5b0cb8d7e
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6DyE9x3pO:bIDOw9a0Dwo3P1ojvUSD79RpO

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00080000000122cd-13.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3052	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2208	2024-04-29_ecf79c57a91046b3ee4910305f0ba4b4_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 2208 wrote to memory of 3052	2208	2024-04-29_ecf79c57a91046b3ee4910305f0ba4b4_cryptolocker.exe	28
PID 2208 wrote to memory of 3052	2208	2024-04-29_ecf79c57a91046b3ee4910305f0ba4b4_cryptolocker.exe	28
PID 2208 wrote to memory of 3052	2208	2024-04-29_ecf79c57a91046b3ee4910305f0ba4b4_cryptolocker.exe	28
PID 2208 wrote to memory of 3052	2208	2024-04-29_ecf79c57a91046b3ee4910305f0ba4b4_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-29_ecf79c57a91046b3ee4910305f0ba4b4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-29_ecf79c57a91046b3ee4910305f0ba4b4_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2208
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:3052

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\lossy.exe

Filesize
41KB

MD5
31c7e672dd4f3cbe268236229dbcc7a5

SHA1
aeaa4682c4e4cde48caf3aebe38ba0af00ab7bf2

SHA256
e66f72efa6120447f0c8471923373d77359e935e5f4a0966f60db02e1934e93d

SHA512
cbf5f60afaada0d41b3958088f20eee996eff0834c104f8e6bd6c1fc12f23d40ed0d7a470bdf92a00083c6dea7ab9ccac482d109f7c91623499b2723a15f8fc7

Download Submit
memory/2208-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2208-1-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2208-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3052-15-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/3052-22-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download