928f83de46df937c6b26891af77b3fe88b351aab6f5c3580e3caf8f1dc8571d8

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
20-06-2024 04:36

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General

Target

2024-06-20_de745a42217582caaa7267f115bcf8a6_cryptolocker.exe
Size

47KB
MD5

de745a42217582caaa7267f115bcf8a6
SHA1

1e07ff3d3c16b4e67c529f83ded621196b5aee30
SHA256

928f83de46df937c6b26891af77b3fe88b351aab6f5c3580e3caf8f1dc8571d8
SHA512

b28f8415c347bf56f550ca345c4f1b508c027892d5cc10d5bf531d347784a066128470cd10a898461f6b6c6c72ffccc1c4803ebaaada6cc6db63a0f89e61d733
SSDEEP

768:y6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpjbXOQ69zbjlAAX5e9zrU:y6QFElP6n+gMQMOtEvwDpjbizbR9Xwz4

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000500000000b309-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000500000000b309-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2144	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2620	2024-06-20_de745a42217582caaa7267f115bcf8a6_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 2620 wrote to memory of 2144	2620	2024-06-20_de745a42217582caaa7267f115bcf8a6_cryptolocker.exe	28
PID 2620 wrote to memory of 2144	2620	2024-06-20_de745a42217582caaa7267f115bcf8a6_cryptolocker.exe	28
PID 2620 wrote to memory of 2144	2620	2024-06-20_de745a42217582caaa7267f115bcf8a6_cryptolocker.exe	28
PID 2620 wrote to memory of 2144	2620	2024-06-20_de745a42217582caaa7267f115bcf8a6_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-20_de745a42217582caaa7267f115bcf8a6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-20_de745a42217582caaa7267f115bcf8a6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2620
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2144

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
47KB

MD5
10658c1fe33276ba8d61ab97cb086841

SHA1
16a9e7abc11fd70c5b638b59680515b071a3e153

SHA256
ff9054c3aa77e96998f1c51c082fb230e254881c1d25b844b701dc3ed7c0dd89

SHA512
9bc48ffb3e9bf94664861ec576e23719b772cbbe7c6818a6a273b50897ff6735d986f7eafcda52f7944ccc027a82b00a08daaee9338071df8dd09d31a979be85

Download Submit
memory/2144-15-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2144-22-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2620-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2620-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2620-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download