4ba773bf6391481aee38a7555d87951b3abad0f3fca4829b9b5ae6af946068f3

Analysis

max time kernel
151s
max time network
155s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
05-04-2024 03:24

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General

Target

2024-04-05_0106945a8f07ce109a34e925d172715f_cryptolocker.exe
Size

387KB
MD5

0106945a8f07ce109a34e925d172715f
SHA1

201fe813688c105eac8a2725da29fc2821e10c4f
SHA256

4ba773bf6391481aee38a7555d87951b3abad0f3fca4829b9b5ae6af946068f3
SHA512

ce992654e4fe5bc4c17d43af82a3982e0d9d6b1ad0e6948f2cdde3ff6e7370a877f069cbbb13346ac5694af11ce8158064f61783c219a20868bc130a7f0a9f2e
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXT:nnOflT/ZFIjBz3xjTxynGUOUhXT

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012272-22.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3008	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2144	2024-04-05_0106945a8f07ce109a34e925d172715f_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 2144 wrote to memory of 3008	2144	2024-04-05_0106945a8f07ce109a34e925d172715f_cryptolocker.exe	28
PID 2144 wrote to memory of 3008	2144	2024-04-05_0106945a8f07ce109a34e925d172715f_cryptolocker.exe	28
PID 2144 wrote to memory of 3008	2144	2024-04-05_0106945a8f07ce109a34e925d172715f_cryptolocker.exe	28
PID 2144 wrote to memory of 3008	2144	2024-04-05_0106945a8f07ce109a34e925d172715f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-05_0106945a8f07ce109a34e925d172715f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-05_0106945a8f07ce109a34e925d172715f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2144
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3008

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\hasfj.exe

Filesize
387KB

MD5
422f3127e42e4379ad0f14d078cbdcf2

SHA1
251b8007d31b188be67ae3e506db7bea4002789e

SHA256
b8b672b86f118b929276c7c2dd5d1b4ae5553d3b039b083f5fa322a7b0ea4d48

SHA512
7e637357ed1a6ad0094d953af3d049f80685a868a6e930ad5f8cedbfbb2242b96df9d7b5446bcdd2fe2fe96573efaef4209787ecbeb3c1fc3e0fd35ab2383a58

Download Submit
memory/2144-1-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2144-2-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2144-0-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/3008-19-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/3008-15-0x00000000007F0000-0x00000000007F6000-memory.dmp

Filesize
24KB

Download