1b3bedef4dd5802ac71f1cca549dc945f2b15e924d6fce505518a0c6850f69f1

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
04/04/2024, 16:36

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General

Target

2024-04-04_3d06d2c7ded8d793e91aefef31935d05_cryptolocker.exe
Size

164KB
MD5

3d06d2c7ded8d793e91aefef31935d05
SHA1

6d702914996e5a555ed119831b06af19d517ed93
SHA256

1b3bedef4dd5802ac71f1cca549dc945f2b15e924d6fce505518a0c6850f69f1
SHA512

52ded0ed1e0ae8d566d4aca8fc94d90d8c2c73fcefb69e7f89a73e94282068082397da4e75fbd9b187a97de9f2c398ac8c2183ed08e6a300d30767586684a723
SSDEEP

1536:u6QFElP6n+gWMOtEvwDpjJGYQbN/PKwNgp699GNtL1emEV:u6a++OtEvwDpj6zf

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012339-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012339-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2976	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2952	2024-04-04_3d06d2c7ded8d793e91aefef31935d05_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 2952 wrote to memory of 2976	2952	2024-04-04_3d06d2c7ded8d793e91aefef31935d05_cryptolocker.exe	28
PID 2952 wrote to memory of 2976	2952	2024-04-04_3d06d2c7ded8d793e91aefef31935d05_cryptolocker.exe	28
PID 2952 wrote to memory of 2976	2952	2024-04-04_3d06d2c7ded8d793e91aefef31935d05_cryptolocker.exe	28
PID 2952 wrote to memory of 2976	2952	2024-04-04_3d06d2c7ded8d793e91aefef31935d05_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-04_3d06d2c7ded8d793e91aefef31935d05_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-04_3d06d2c7ded8d793e91aefef31935d05_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2952
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2976

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
164KB

MD5
01c5db78aab2463493c0dbdbf79e6298

SHA1
a9a05c0d3e9cf800ffad767ac05fc83245d3cad4

SHA256
1070aa24fbec762388a93ed722f1c400ad55cfef6a58011e65a92e07185cddaa

SHA512
4f52faccc51b4ccb3a34ae436efb5392d529148738241e2a72894f8af6322fc7008c5a58bf66e1930882c7381f64db55f7c70bdba9cf5a9cc16b12b696eefbed

Download Submit
memory/2952-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2952-1-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2952-4-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2976-15-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2976-17-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download