f8ec6fc06ed1563b16676817eb97b1a5109e12f4ec4ef06005c2d4ca42d64d14

Analysis

max time kernel
147s
max time network
151s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
02/06/2024, 04:30

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General

Target

2024-06-02_5c8f1128f7525d7d7e36b0f472680858_cryptolocker.exe
Size

76KB
MD5

5c8f1128f7525d7d7e36b0f472680858
SHA1

c027e7a3c59cb037435f2b14b22085a9636308e0
SHA256

f8ec6fc06ed1563b16676817eb97b1a5109e12f4ec4ef06005c2d4ca42d64d14
SHA512

20d074a82a6f3d06ce5e2e6ac2a543150400d3e4f8c8f6f264d8f33a0dc3f17fdce4f116bc0afa3aa1a46b4734e82e3ac8477e9208dcce7a51f4a026cc4f73ae
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHsoLkzW:X6a+SOtEvwDpjBZYvQd2J

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001444f-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001444f-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3064	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2388	2024-06-02_5c8f1128f7525d7d7e36b0f472680858_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 2388 wrote to memory of 3064	2388	2024-06-02_5c8f1128f7525d7d7e36b0f472680858_cryptolocker.exe	28
PID 2388 wrote to memory of 3064	2388	2024-06-02_5c8f1128f7525d7d7e36b0f472680858_cryptolocker.exe	28
PID 2388 wrote to memory of 3064	2388	2024-06-02_5c8f1128f7525d7d7e36b0f472680858_cryptolocker.exe	28
PID 2388 wrote to memory of 3064	2388	2024-06-02_5c8f1128f7525d7d7e36b0f472680858_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-02_5c8f1128f7525d7d7e36b0f472680858_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-02_5c8f1128f7525d7d7e36b0f472680858_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2388
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3064

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\asih.exe

Filesize
77KB

MD5
7d62e4763ab2617694a4850222a66fce

SHA1
afceffb8a40ba431001ed32dc62862663985bf84

SHA256
2ab115235b68a1df2a5bb7432e3b4382592a4996f90f35d9bef25655a063c8c2

SHA512
8c070528d393b6958d243572ad3f2bfbf2102a78b451a6375a786a93ddbc2c3bae8a1c60554f808f7cce8ab0f30d411dc10d0b8c20c7891738848cabea8034a1

Download Submit
memory/2388-0-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2388-8-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2388-1-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/3064-15-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3064-16-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download