837ac577e892a960366f779cccb744e0cbaa4b4c451f0fbcfb4a01b4ab139de5

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09/05/2024, 13:31

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General

Target

2024-05-09_c804699d91ad74b9fef790e24164919e_cryptolocker.exe
Size

41KB
MD5

c804699d91ad74b9fef790e24164919e
SHA1

e786f6607dbdec33b48b956d362058add95058d9
SHA256

837ac577e892a960366f779cccb744e0cbaa4b4c451f0fbcfb4a01b4ab139de5
SHA512

2b6a3b5a2d472d46b1d2efdb78f07fe24a807d8d59f9e2bab7837b6a362725ae471a63ece21376befcc8e8a380feface2beac6de378628e51baa07180bb9ed75
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLenQLJJzMRaka:ZzFbxmLPWQMOtEvwDpjLeU3YR1a

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000146fc-11.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2584	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2724	2024-05-09_c804699d91ad74b9fef790e24164919e_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 2724 wrote to memory of 2584	2724	2024-05-09_c804699d91ad74b9fef790e24164919e_cryptolocker.exe	28
PID 2724 wrote to memory of 2584	2724	2024-05-09_c804699d91ad74b9fef790e24164919e_cryptolocker.exe	28
PID 2724 wrote to memory of 2584	2724	2024-05-09_c804699d91ad74b9fef790e24164919e_cryptolocker.exe	28
PID 2724 wrote to memory of 2584	2724	2024-05-09_c804699d91ad74b9fef790e24164919e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-09_c804699d91ad74b9fef790e24164919e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-09_c804699d91ad74b9fef790e24164919e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2724
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2584

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\misid.exe

Filesize
41KB

MD5
af01b23f584d80cbc1cb92ff3bfc6217

SHA1
808c893fae72a70acfda17ddf45c876ce0e2c96a

SHA256
e7a7734566c1d1fd92565e2c92ef180ce638c0116bdd60e80ec8aa53025c46cb

SHA512
b239b1ce94fc731afda95bcfdf04f7bf96640c8892e997380a791c7e7e8a1935f3bb8af11ee33eb56df5c38796467bb88ee67bd6a081c3602f86542e0babe24d

Download Submit
memory/2584-15-0x00000000003B0000-0x00000000003B3000-memory.dmp

Filesize
12KB

Download
memory/2584-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2584-24-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2584-25-0x00000000003B0000-0x00000000003B3000-memory.dmp

Filesize
12KB

Download
memory/2724-3-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2724-2-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2724-1-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2724-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download