9a734f70f5c55e0bdf60482604caa35504a37d3a4e3da9d5b147b53c1cc62fde

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
05/04/2024, 02:38

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General

Target

2024-04-05_5eb5b7d30572b481c19be260fe4098e2_cryptolocker.exe
Size

53KB
MD5

5eb5b7d30572b481c19be260fe4098e2
SHA1

d864fa73042b9a0022e5e518493cab01ea4b5238
SHA256

9a734f70f5c55e0bdf60482604caa35504a37d3a4e3da9d5b147b53c1cc62fde
SHA512

1e0651cc2e365067cd62fcf38295ebff3c54956bf09a31974d60bbf0784e74444be5ce570cd298624b3060fafa06c488ccba3c2eb1671e5825fce1ee62e1ab9f
SSDEEP

768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9gE1NImsjj:bIDOw9a0DwitDZzwI9j

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012253-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2560	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2872	2024-04-05_5eb5b7d30572b481c19be260fe4098e2_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 2872 wrote to memory of 2560	2872	2024-04-05_5eb5b7d30572b481c19be260fe4098e2_cryptolocker.exe	28
PID 2872 wrote to memory of 2560	2872	2024-04-05_5eb5b7d30572b481c19be260fe4098e2_cryptolocker.exe	28
PID 2872 wrote to memory of 2560	2872	2024-04-05_5eb5b7d30572b481c19be260fe4098e2_cryptolocker.exe	28
PID 2872 wrote to memory of 2560	2872	2024-04-05_5eb5b7d30572b481c19be260fe4098e2_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-05_5eb5b7d30572b481c19be260fe4098e2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-05_5eb5b7d30572b481c19be260fe4098e2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2872
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2560

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\lossy.exe

Filesize
53KB

MD5
5dc482ba954ae2d5baddc796f3fd9707

SHA1
37fa777126207f011de8d95a1e6d335aa9e5e39d

SHA256
ab1a60cb32d6cd7eed33a3f9b2450393a6fc4176bb05e869640a77a82ca9f5ad

SHA512
67109aff1d58c4721c058347e2da4bedf1cdbddd7f0cdea34b98bfb0f15dc72241a89c55f7da99056554c73702c1d36239aa6bc12bedbb2d9200f4aa59ef63c3

Download Submit
memory/2560-15-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2872-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2872-1-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2872-2-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download