5f7e3217097d7551a4b3230767b8fd653a4a748b616323d34b6a79fc7d145135

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240319-en
resource tags

arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
submitted
26-03-2024 12:06

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General

Target

2024-03-26_fbe4159e31e0942ec8048a7658b48be7_cryptolocker.exe
Size

75KB
MD5

fbe4159e31e0942ec8048a7658b48be7
SHA1

3a9db157261305844f8c0d730da8a54f97e4e8fb
SHA256

5f7e3217097d7551a4b3230767b8fd653a4a748b616323d34b6a79fc7d145135
SHA512

00801cf414b0298c0c28119bb9c73b0b350f165cb5f6b08a8a6f76d48e8ed10127675e8b2d9c20fa22387a0d5c2272d5bf6d7f518ea6fc691d6dc2f03c90d668
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1RUr:X6a+SOtEvwDpjBZYvQd2q

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b0000000121c5-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b0000000121c5-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2988	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2144	2024-03-26_fbe4159e31e0942ec8048a7658b48be7_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 2988	2144	2024-03-26_fbe4159e31e0942ec8048a7658b48be7_cryptolocker.exe	28
PID 2144 wrote to memory of 2988	2144	2024-03-26_fbe4159e31e0942ec8048a7658b48be7_cryptolocker.exe	28
PID 2144 wrote to memory of 2988	2144	2024-03-26_fbe4159e31e0942ec8048a7658b48be7_cryptolocker.exe	28
PID 2144 wrote to memory of 2988	2144	2024-03-26_fbe4159e31e0942ec8048a7658b48be7_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-26_fbe4159e31e0942ec8048a7658b48be7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-26_fbe4159e31e0942ec8048a7658b48be7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2144
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2988

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
75KB

MD5
21e4c9dc8cde29754e67b503382043ca

SHA1
d4cbaa5d36036403869b8b848336743ba6721f8e

SHA256
ebaa7954364f363c4a6ca21d4358db3c1dad1377ca3f09c6ac4ce30e9dc41c12

SHA512
98fc1063d06924b7d91f461168bad70dfe417092fcbb0e3fbe3929a166729d86605e8bac3a4c1eca169ba2c83c4991c9a24baa5933530a2d07a24cdd817deaf8

Download Submit
memory/2144-0-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2144-1-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2144-2-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2988-15-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2988-19-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download