c9102bae3b88cdefa51261c5481b23665fe6706a5683ce190593273bc692fbdf

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
05/03/2024, 12:44

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General

Target

2024-03-05_175b0dba2d451e21bf42f6c1d62590e1_cryptolocker.exe
Size

53KB
MD5

175b0dba2d451e21bf42f6c1d62590e1
SHA1

ca95f0f0a02836b5a479ab729b454053db71caf5
SHA256

c9102bae3b88cdefa51261c5481b23665fe6706a5683ce190593273bc692fbdf
SHA512

ded1a239288bd06b5996556519d7e960be8da51c2594ef7c0033496153e0c89fcbf38bb430b943eba056da35ecf6ddfd47e5188abfe82361428ee39f6ca8ce7f
SSDEEP

768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9XbTb8puY:bIDOw9a0DwitDZzcTLY

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012260-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2540	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2088	2024-03-05_175b0dba2d451e21bf42f6c1d62590e1_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 2088 wrote to memory of 2540	2088	2024-03-05_175b0dba2d451e21bf42f6c1d62590e1_cryptolocker.exe	28
PID 2088 wrote to memory of 2540	2088	2024-03-05_175b0dba2d451e21bf42f6c1d62590e1_cryptolocker.exe	28
PID 2088 wrote to memory of 2540	2088	2024-03-05_175b0dba2d451e21bf42f6c1d62590e1_cryptolocker.exe	28
PID 2088 wrote to memory of 2540	2088	2024-03-05_175b0dba2d451e21bf42f6c1d62590e1_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-05_175b0dba2d451e21bf42f6c1d62590e1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-05_175b0dba2d451e21bf42f6c1d62590e1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2088
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2540

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
67b271269c0b0d224bf1d8e00fefb747

SHA1
fb8890bb4178d2d8b1b7714fca6412001c2bb0b3

SHA256
3d7f4e48da18faf9d84b2cea3477511e390773f5209ecbbe49d3707d4741a377

SHA512
f441f0480e5bbe5b2ee28cbce4031ebe2a22a219d7f5fb2dce35df342fcec04ddb2384d026a1a272c26dfbcc3f581ba3a7bfcdb4697d07bd839ca23c6b9ea77c

Download Submit
memory/2088-0-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2088-2-0x0000000001BA0000-0x0000000001BA6000-memory.dmp

Filesize
24KB

Download
memory/2088-1-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2540-16-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2540-15-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download