334b745fef48fa6af9f83c9420766f7f46226c45a40fd42a195065433d66c594

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
20/05/2024, 23:25

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General

Target

2024-05-20_2527b863481b5a4d7d2af6613781ba03_cryptolocker.exe
Size

62KB
MD5

2527b863481b5a4d7d2af6613781ba03
SHA1

3583cb56b03be1b3599ffd4540afffc8cf661f09
SHA256

334b745fef48fa6af9f83c9420766f7f46226c45a40fd42a195065433d66c594
SHA512

ddab9925057ee44a1903c61d0a3f48432f0801ea31bd735bc3cf20036c91abe317a51c6f6ee8d15fb872e7c0dd6f7cbebd5eccbcf058bdd3d080f0994ceabf71
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHZnF7H6:btng54SMLr+/AO/kIhfoKMHdaw

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012286-12.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3020	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1280	2024-05-20_2527b863481b5a4d7d2af6613781ba03_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
1280	2024-05-20_2527b863481b5a4d7d2af6613781ba03_cryptolocker.exe
3020	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1280 wrote to memory of 3020	1280	2024-05-20_2527b863481b5a4d7d2af6613781ba03_cryptolocker.exe	28
PID 1280 wrote to memory of 3020	1280	2024-05-20_2527b863481b5a4d7d2af6613781ba03_cryptolocker.exe	28
PID 1280 wrote to memory of 3020	1280	2024-05-20_2527b863481b5a4d7d2af6613781ba03_cryptolocker.exe	28
PID 1280 wrote to memory of 3020	1280	2024-05-20_2527b863481b5a4d7d2af6613781ba03_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-20_2527b863481b5a4d7d2af6613781ba03_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-20_2527b863481b5a4d7d2af6613781ba03_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1280
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:3020

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\gewos.exe

Filesize
63KB

MD5
227186b1239180f884cb93f25949c919

SHA1
0055d343d65c8cfbc5dd6284beb94f09fa627649

SHA256
c2c47b2d1d0d80fd22c71fd789c6c3a936627ecafd192668e06bd91ebfa25c17

SHA512
67feebef9fd9d7900fbf97cbb786b9ed53df9d9ab206d76e4dac770a03606da0792e323eafd4a8fc1cfa36d549d11f78554b2e421ddd656cbe1ce168a364924c

Download Submit
memory/1280-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1280-0-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/1280-8-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/3020-23-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download