ee5f5c74359dbce567929b649fc36ffe45eb4b7f53df2f3be655adf4bdfe7271

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
06-04-2024 09:36

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General

Target

2024-04-06_4aa5bc9663ad4a78356bc4c7d560979a_cryptolocker.exe
Size

63KB
MD5

4aa5bc9663ad4a78356bc4c7d560979a
SHA1

741daf5475b2f071e4fc606a385a892be092b58d
SHA256

ee5f5c74359dbce567929b649fc36ffe45eb4b7f53df2f3be655adf4bdfe7271
SHA512

d316c8ee0a6b6b3c656e372816fc5d07cfa8be68af03628622a25228b0b6c7bd0788a955939ffa68507e7d5fa6a2f8357897c46be032b6e5a0caa70a83e66fa8
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBccD2RuoNmuBLZ/xblzowe:X6a+SOtEvwDpjBrOa

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000e000000012248-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000e000000012248-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2984	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2120	2024-04-06_4aa5bc9663ad4a78356bc4c7d560979a_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 2120 wrote to memory of 2984	2120	2024-04-06_4aa5bc9663ad4a78356bc4c7d560979a_cryptolocker.exe	28
PID 2120 wrote to memory of 2984	2120	2024-04-06_4aa5bc9663ad4a78356bc4c7d560979a_cryptolocker.exe	28
PID 2120 wrote to memory of 2984	2120	2024-04-06_4aa5bc9663ad4a78356bc4c7d560979a_cryptolocker.exe	28
PID 2120 wrote to memory of 2984	2120	2024-04-06_4aa5bc9663ad4a78356bc4c7d560979a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-06_4aa5bc9663ad4a78356bc4c7d560979a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-06_4aa5bc9663ad4a78356bc4c7d560979a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2120
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2984

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
63KB

MD5
b2f82e4fe7b1f195ba6f8dfae555ebf6

SHA1
ba65128d3f628d497153b16166936dc259d764e8

SHA256
26125ae9078567ed49499841f80645fcab245a9bbfd9ad9f3b4cf3b206913c2f

SHA512
cd69fec8f3342475b4b27ddea1a3b7baffc95dca87d78992daaca2d0ca95fb948787a5608721bf6a1d16021f539b21b4c453d541fc88ff2593c2814e27df0c82

Download Submit
memory/2120-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2120-1-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/2120-8-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2984-16-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2984-15-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download