d2a61ab9ff8e799f10ac3ed8fcea826081137a7f166057fd425771f769a2e700

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
27/03/2024, 20:34

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General

Target

2024-03-27_618f20b90d2bb3d6309b686e4cc2e7e0_cryptolocker.exe
Size

42KB
MD5

618f20b90d2bb3d6309b686e4cc2e7e0
SHA1

cc35f1649ae6520bdccc216d7b7c97762fd51057
SHA256

d2a61ab9ff8e799f10ac3ed8fcea826081137a7f166057fd425771f769a2e700
SHA512

2fcf474cc66479d901a19f841d7b8042aae03f36c6ec5df30e7c6225f0c4b105f095802b07cfeb9fe958ec5d83942f2076ac709ea8fae8f0e93429c5cd814ef3
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6j4AYsqSh+DETkedX:YGzl5wjRQBBOsP1QMOtEvwDpjl39+D+b

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2208-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d000000012256-11.dat	CryptoLocker_rule2
behavioral1/memory/2208-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2116-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2208-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000d000000012256-11.dat	CryptoLocker_set1
behavioral1/memory/2208-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2116-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2116	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2208	2024-03-27_618f20b90d2bb3d6309b686e4cc2e7e0_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 2208 wrote to memory of 2116	2208	2024-03-27_618f20b90d2bb3d6309b686e4cc2e7e0_cryptolocker.exe	28
PID 2208 wrote to memory of 2116	2208	2024-03-27_618f20b90d2bb3d6309b686e4cc2e7e0_cryptolocker.exe	28
PID 2208 wrote to memory of 2116	2208	2024-03-27_618f20b90d2bb3d6309b686e4cc2e7e0_cryptolocker.exe	28
PID 2208 wrote to memory of 2116	2208	2024-03-27_618f20b90d2bb3d6309b686e4cc2e7e0_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-27_618f20b90d2bb3d6309b686e4cc2e7e0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-27_618f20b90d2bb3d6309b686e4cc2e7e0_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2208
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2116

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
42KB

MD5
54bfadceca55c6c9512056fb2e3cb978

SHA1
1b11d75147e7dc2b89a4c773f5f24ae8df3b9d23

SHA256
88ef63331130b39bbba56a0262715c7a306e6c9e43c8128ab0daad57babcfb04

SHA512
f176f6524b1ba2c5ecafc94b2a3ab72759b243840b8835ad614569f7e5730b0e936de62dc1a51c6dfdf4c63cd300b7e20f9d6470c5bf8c2d52b0f22f3cb8fa1a

Download Submit
memory/2116-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2116-18-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2116-25-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2208-1-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2208-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2208-2-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2208-3-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2208-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download