2142857353a1ba397d64f05979ec350db46c4e77dd10d064153bee5ad6f2aaba

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
30/04/2024, 20:44

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General

Target

2024-04-30_27cae1bd9ce93bfb36ea3e2480a2c159_cryptolocker.exe
Size

61KB
MD5

27cae1bd9ce93bfb36ea3e2480a2c159
SHA1

4058b5bf08ff9e4e814708c0980bf810ecf09cf4
SHA256

2142857353a1ba397d64f05979ec350db46c4e77dd10d064153bee5ad6f2aaba
SHA512

37af5ebcde54dbefed759c14cc8432ec8c4bb9628905b09b3d1e856af2277c8fcf05f2cb305840d1f19ad9261937066f4fbb671d1bf7036162e5d246e69ae16d
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHZns:btng54SMLr+/AO/kIhfoKMHdas

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000e000000013420-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1120	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1228	2024-04-30_27cae1bd9ce93bfb36ea3e2480a2c159_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
1228	2024-04-30_27cae1bd9ce93bfb36ea3e2480a2c159_cryptolocker.exe
1120	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1228 wrote to memory of 1120	1228	2024-04-30_27cae1bd9ce93bfb36ea3e2480a2c159_cryptolocker.exe	28
PID 1228 wrote to memory of 1120	1228	2024-04-30_27cae1bd9ce93bfb36ea3e2480a2c159_cryptolocker.exe	28
PID 1228 wrote to memory of 1120	1228	2024-04-30_27cae1bd9ce93bfb36ea3e2480a2c159_cryptolocker.exe	28
PID 1228 wrote to memory of 1120	1228	2024-04-30_27cae1bd9ce93bfb36ea3e2480a2c159_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-30_27cae1bd9ce93bfb36ea3e2480a2c159_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_27cae1bd9ce93bfb36ea3e2480a2c159_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1228
- 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:1120

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\gewos.exe

Filesize
61KB

MD5
b9762e7423da3ac9cb1bd6dbde1745c3

SHA1
11d0d04ff35e342673f27c1e5569b4ef995592d0

SHA256
8dc23f5ee9bae4d777aeb9cb67efb4ee330c44dead66b9dc709275c6faf3b5d6

SHA512
0d33cc982998c4c06b45bc51f8883ceddb19155766677d26010c110f54f1037f95b387a6ac05dd278fb8d97ba8dddf1881041134b1a68c5fdf4b983ab76b7f6d

Download Submit
memory/1120-23-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1228-1-0x0000000000410000-0x0000000000416000-memory.dmp

Filesize
24KB

Download
memory/1228-0-0x0000000000410000-0x0000000000416000-memory.dmp

Filesize
24KB

Download
memory/1228-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download