dc875aa30d94f138c738f11f4885352d28ff39876933a6e244a0d0e0a793cfed

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
11/03/2024, 00:22

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General

Target

2024-03-11_0fc8db2fa21a8ceed308cf61f459113b_cryptolocker.exe
Size

49KB
MD5

0fc8db2fa21a8ceed308cf61f459113b
SHA1

034ad2fd8110cc2fc8641c8b73aa16afc6377f6a
SHA256

dc875aa30d94f138c738f11f4885352d28ff39876933a6e244a0d0e0a793cfed
SHA512

eb4fd4dc18133f9b114393eb6100df3b92df41c1cf52504f1fa547f7e2b5c7c6a3906ffc52b3da909f2b56ea1f17bdc5eaf4d1cf12e6957e565a256a6bf5f106
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vxr:X6QFElP6n+gJBMOtEvwDpjBtExr

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001223a-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001223a-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2972	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2488	2024-03-11_0fc8db2fa21a8ceed308cf61f459113b_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 2488 wrote to memory of 2972	2488	2024-03-11_0fc8db2fa21a8ceed308cf61f459113b_cryptolocker.exe	28
PID 2488 wrote to memory of 2972	2488	2024-03-11_0fc8db2fa21a8ceed308cf61f459113b_cryptolocker.exe	28
PID 2488 wrote to memory of 2972	2488	2024-03-11_0fc8db2fa21a8ceed308cf61f459113b_cryptolocker.exe	28
PID 2488 wrote to memory of 2972	2488	2024-03-11_0fc8db2fa21a8ceed308cf61f459113b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-11_0fc8db2fa21a8ceed308cf61f459113b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-11_0fc8db2fa21a8ceed308cf61f459113b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2488
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2972

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
50KB

MD5
eb08fa582d171cf89f516a6b7e246783

SHA1
8fd0b9374c7573c430f5b4d20991f42f9f224707

SHA256
59da2b77f2ef7d38ac22b826a53f0dbe05f91f90af4a0150c5cd415044f82f30

SHA512
8b1e9b84e252d5eb053d85b24b7d6a997a8f02fed8660fc924cc9b731251b88821b7a52106d5a6d607ef0652ac30a422f353091532598be92c4172bbd9880242

Download Submit
memory/2488-0-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2488-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2488-2-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2972-16-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2972-15-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download