ec5652bc55deca41c6ff947f0ed42ae4028725331844ff86f1c815b6d44d6d9f

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
24/04/2024, 19:44

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General

Target

2024-04-24_8a58b38d1e045190220723d460ba0ec7_cryptolocker.exe
Size

39KB
MD5

8a58b38d1e045190220723d460ba0ec7
SHA1

e5ec1eb22ceead84f5d8dbb33184348b4eae8bfd
SHA256

ec5652bc55deca41c6ff947f0ed42ae4028725331844ff86f1c815b6d44d6d9f
SHA512

cbed0de15468e6fc1168e3b046087613cefab79fa995a69d5b27c8506a880626fd981e6592773ba8109196f2669d23db6804a268a6f0f1d23c0e8cdf01218a0a
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5axZmGRo:V6QFElP6n+gMQMOtEvwDpjyaYa/mmo

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012248-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012248-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3040	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2420	2024-04-24_8a58b38d1e045190220723d460ba0ec7_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 2420 wrote to memory of 3040	2420	2024-04-24_8a58b38d1e045190220723d460ba0ec7_cryptolocker.exe	28
PID 2420 wrote to memory of 3040	2420	2024-04-24_8a58b38d1e045190220723d460ba0ec7_cryptolocker.exe	28
PID 2420 wrote to memory of 3040	2420	2024-04-24_8a58b38d1e045190220723d460ba0ec7_cryptolocker.exe	28
PID 2420 wrote to memory of 3040	2420	2024-04-24_8a58b38d1e045190220723d460ba0ec7_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-24_8a58b38d1e045190220723d460ba0ec7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-24_8a58b38d1e045190220723d460ba0ec7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2420
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3040

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\asih.exe

Filesize
39KB

MD5
5ea1a6efa784b007a1b6d57331b216bb

SHA1
2f4df7a28228a7e23a11812b8d3dfc23f6f8e14e

SHA256
2aa6259ac63bff96e3833859212ad6389f062eb90a5b1767dd014e3c47543a85

SHA512
ab34b931e9c1621365f92ab73a9a1353af1c0b1309f9c653a8d06c2de9090f1e93c86d83d844e4988fee19ec1bc23487dc0c12de8ce085379358b7ed3ccb0292

Download Submit
memory/2420-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2420-2-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2420-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/3040-15-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/3040-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download