a789407246ea29f33900cb884c18a48200623107f187f6b6b6f81e6704b155f4

Analysis

max time kernel
150s
max time network
171s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10/04/2024, 19:03

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General

Target

2024-04-10_e2982eb40dececa425a54bd4ec901e01_cryptolocker.exe
Size

63KB
MD5

e2982eb40dececa425a54bd4ec901e01
SHA1

68779e5ab68fdbcd47106537401f4d0e60873d36
SHA256

a789407246ea29f33900cb884c18a48200623107f187f6b6b6f81e6704b155f4
SHA512

12fdc2cd7137ac74bfae5a9fff38907c389345a7aaf77d0830e5db0fb6b07d212f11b1a1530e3129e0db37c15f1a5a234c8a3b79b2c1d7621385b80f492af64c
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVCbmh857:V6a+pOtEvwDpjvk

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00050000000120fe-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x00050000000120fe-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2536	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1608	2024-04-10_e2982eb40dececa425a54bd4ec901e01_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 1608 wrote to memory of 2536	1608	2024-04-10_e2982eb40dececa425a54bd4ec901e01_cryptolocker.exe	28
PID 1608 wrote to memory of 2536	1608	2024-04-10_e2982eb40dececa425a54bd4ec901e01_cryptolocker.exe	28
PID 1608 wrote to memory of 2536	1608	2024-04-10_e2982eb40dececa425a54bd4ec901e01_cryptolocker.exe	28
PID 1608 wrote to memory of 2536	1608	2024-04-10_e2982eb40dececa425a54bd4ec901e01_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-10_e2982eb40dececa425a54bd4ec901e01_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-10_e2982eb40dececa425a54bd4ec901e01_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1608
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2536

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\asih.exe

Filesize
64KB

MD5
04bf8bbfaa0da06be878859619a818ed

SHA1
94deb5a15b2776f4924a1bb6d0b5249a7de55e6c

SHA256
12e633233ec01fc401bb0eadfba70cc2357676c510e84fac8ce6ea1705b65ae4

SHA512
585b9714978014bf6be21838616acc4411534f3daad6b6bf67954a8e1439c565d1c0b22a0c864b20ec4f82f43a70d8214a43ef8a6feb4c252738696f3855d7de

Download Submit
memory/1608-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1608-1-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/1608-3-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2536-15-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2536-22-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download