1f5a63fe040b636bad74de816d10f39881ac1084cc4a3d3e5dce2425e2d04f47

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28/05/2024, 19:33

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General

Target

2024-05-28_cdd367f54defa08bb2d06312a286195c_cryptolocker.exe
Size

37KB
MD5

cdd367f54defa08bb2d06312a286195c
SHA1

65c37b5badb85f635f9d6e7b1bcf43673ee0ee43
SHA256

1f5a63fe040b636bad74de816d10f39881ac1084cc4a3d3e5dce2425e2d04f47
SHA512

e19fac088dbe64e8d9d0349661936943700d16cebcdbd3a79129fff1351a9f2f50c499912b35a709332f9e9ebe093ecddbfd76b30f72bad11a51e11aea1f6cd5
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunexRlSrxV1PVGjD:bA74zYcgT/Ekd0ryfjPIunYwfPVyD

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014230-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1284	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2240	2024-05-28_cdd367f54defa08bb2d06312a286195c_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 2240 wrote to memory of 1284	2240	2024-05-28_cdd367f54defa08bb2d06312a286195c_cryptolocker.exe	28
PID 2240 wrote to memory of 1284	2240	2024-05-28_cdd367f54defa08bb2d06312a286195c_cryptolocker.exe	28
PID 2240 wrote to memory of 1284	2240	2024-05-28_cdd367f54defa08bb2d06312a286195c_cryptolocker.exe	28
PID 2240 wrote to memory of 1284	2240	2024-05-28_cdd367f54defa08bb2d06312a286195c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-28_cdd367f54defa08bb2d06312a286195c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-28_cdd367f54defa08bb2d06312a286195c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2240
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1284

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\hasfj.exe

Filesize
37KB

MD5
55a72d69cb412a3ee64d181a730385e4

SHA1
913ebd7808eaba30693d60d5d14b40e90e316fec

SHA256
40736340c1393539b023fbeb58e1ede498182d3177e7a82273a95b4bc5694f14

SHA512
ddd0e547580e3ba6680b14ae1df2250232d3432ff1ed1e047eb67479881fb66cd165dc0ce41587f627cc237715864f391b4f012707c795c40db49c3405b2cf0a

Download Submit
memory/1284-15-0x0000000002D00000-0x0000000002D06000-memory.dmp

Filesize
24KB

Download
memory/1284-22-0x0000000002920000-0x0000000002926000-memory.dmp

Filesize
24KB

Download
memory/2240-0-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2240-1-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2240-2-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download