bfd937c4e52390af778787bf6de8a66bea998fbe41d81672acf5e15b24274d52

Analysis

max time kernel
137s
max time network
146s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
30-04-2024 05:13

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General

Target

2024-04-30_8a70f940a6077a592b45961cda0630da_cryptolocker.exe
Size

39KB
MD5

8a70f940a6077a592b45961cda0630da
SHA1

2ce0c59dfa486869afc5b8b78a308df8e972df49
SHA256

bfd937c4e52390af778787bf6de8a66bea998fbe41d81672acf5e15b24274d52
SHA512

9db7a0c937bbdc1eee7c997ca1058d9088b77ae94dcaf329c736734b7b1f9e7639cd9bad1c9341455368fe54418287653913d164cbd0f078a5cab9bf1659dece
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLeJAsKuDkg:ZzFbxmLPWQMOtEvwDpjLeJAsKcz

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000013a88-14.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1748	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2220	2024-04-30_8a70f940a6077a592b45961cda0630da_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 2220 wrote to memory of 1748	2220	2024-04-30_8a70f940a6077a592b45961cda0630da_cryptolocker.exe	28
PID 2220 wrote to memory of 1748	2220	2024-04-30_8a70f940a6077a592b45961cda0630da_cryptolocker.exe	28
PID 2220 wrote to memory of 1748	2220	2024-04-30_8a70f940a6077a592b45961cda0630da_cryptolocker.exe	28
PID 2220 wrote to memory of 1748	2220	2024-04-30_8a70f940a6077a592b45961cda0630da_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-30_8a70f940a6077a592b45961cda0630da_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_8a70f940a6077a592b45961cda0630da_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2220
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1748

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

C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
39KB

MD5
74bce1b4b07eb5177069247e96bdaccc

SHA1
35c65e3d3b30d3eb2cb59b7861481b6f0c687af2

SHA256
c83c4b722cd6dd592acdb62372d845bd1694c35bd32102c2fe0bd89a8b4caaa2

SHA512
d393b7ecb4f319bf754e536456f9e4d4bfa505cb3f1a61698777100c921e5e87b8f604d78b90dad0b3d5bdc2683d1ebfd2a08fdc325e9e5ca16b570174b56846

Download Submit
memory/1748-15-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1748-17-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1748-24-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/1748-25-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2220-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2220-1-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2220-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2220-8-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download