46ad58cee9214ace75690bc53021c0990b6aed14f20d11c8b5846647009d35dd

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
22-04-2024 04:50

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General

Target

2024-04-22_5f5cdd328c5ea70f138151467bc33bf0_cryptolocker.exe
Size

36KB
MD5

5f5cdd328c5ea70f138151467bc33bf0
SHA1

d1215c9bd15743868aad46beaa070bcef1748f14
SHA256

46ad58cee9214ace75690bc53021c0990b6aed14f20d11c8b5846647009d35dd
SHA512

7350ff067ba165447aec27aa20fec576ca5ea6d5668f3aa1865c2895a067bbe4628c32255625bb7e871169d4ff7489394a38acaf769fd2203d157e4f3b5d9d85
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCt9/B1RU3qE4kb6oY261:b7o/2n1TCraU6GD1a4Xt9bRU6zA6o361

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001225d-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3048	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
1740	2024-04-22_5f5cdd328c5ea70f138151467bc33bf0_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1740	2024-04-22_5f5cdd328c5ea70f138151467bc33bf0_cryptolocker.exe
3048	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1740 wrote to memory of 3048	1740	2024-04-22_5f5cdd328c5ea70f138151467bc33bf0_cryptolocker.exe	28
PID 1740 wrote to memory of 3048	1740	2024-04-22_5f5cdd328c5ea70f138151467bc33bf0_cryptolocker.exe	28
PID 1740 wrote to memory of 3048	1740	2024-04-22_5f5cdd328c5ea70f138151467bc33bf0_cryptolocker.exe	28
PID 1740 wrote to memory of 3048	1740	2024-04-22_5f5cdd328c5ea70f138151467bc33bf0_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-22_5f5cdd328c5ea70f138151467bc33bf0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-22_5f5cdd328c5ea70f138151467bc33bf0_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1740
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:3048

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\rewok.exe

Filesize
36KB

MD5
f3c4b04b7174a3bda1867beb1d087df8

SHA1
df3a7c246c9aa1a66282317272c3de0b4966c815

SHA256
a77f9822c9020041f44f1281cd9b7e485c3288a8f3d5a0c5577097f200f82039

SHA512
0d73dc10003e4e1ba380608ce9ffebc53e06cede6e6ba578fa5a4a8cd28372a7c68c4b163241953c2d294440167c6506d24d71df5e55857c6d411c5f518d39a1

Download Submit
memory/1740-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1740-0-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/1740-3-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/3048-16-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download