e7fa057d0ea0e08f30e1ee66ca0440792189e7f5dc3b9e82e93bc86f190c1a58

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
18/04/2024, 10:46

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

2024-04-18_d4478ff839ba2be9d432857b4ea24996_cryptolocker.exe
Size

41KB
MD5

d4478ff839ba2be9d432857b4ea24996
SHA1

c29002801beeb85bdd819dba2d1c4a639ffaf380
SHA256

e7fa057d0ea0e08f30e1ee66ca0440792189e7f5dc3b9e82e93bc86f190c1a58
SHA512

1dd10cc7fd7d3e3b05cf9b3df5ab6050a7f825211bf91875aa57d12e2f487ecb827ae9dc6a9e6d54ead43d0b97e20293802c59ec200252ef7d86be023d37e055
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6DyE9x3E:bIDOw9a0Dwo3P1ojvUSD79RE

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001224d-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2928	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
1948	2024-04-18_d4478ff839ba2be9d432857b4ea24996_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 1948 wrote to memory of 2928	1948	2024-04-18_d4478ff839ba2be9d432857b4ea24996_cryptolocker.exe	28
PID 1948 wrote to memory of 2928	1948	2024-04-18_d4478ff839ba2be9d432857b4ea24996_cryptolocker.exe	28
PID 1948 wrote to memory of 2928	1948	2024-04-18_d4478ff839ba2be9d432857b4ea24996_cryptolocker.exe	28
PID 1948 wrote to memory of 2928	1948	2024-04-18_d4478ff839ba2be9d432857b4ea24996_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-18_d4478ff839ba2be9d432857b4ea24996_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-18_d4478ff839ba2be9d432857b4ea24996_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1948
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2928

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

Loading Replay Monitor...

Downloads

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

Filesize
41KB

MD5
7c870e41afe01c409860462d5ed04d5a

SHA1
4001dfdda8f62a39407c943a78904f27bc81a531

SHA256
2bcb877b7cb57e76dd135b72d2b71671d3e59cfe6023fc61eda2542393f7cf20

SHA512
3509f553be10989abf00038fd0d8091f5e4bfc42ac7836a302b29a5c8b1e082d68dc1c80297fc3930ceedbd5e721e9861e2de0d0e510ecb20bd5538f39729204

Download Submit
memory/1948-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1948-1-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/1948-8-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2928-15-0x0000000001C90000-0x0000000001C96000-memory.dmp

Filesize
24KB

Download
memory/2928-17-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download