72666f9eb2fd3f68665fdf89c80793c662393d10e27eaa0929a89d459db325d6

Analysis

max time kernel
148s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23/04/2024, 18:25

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General

Target

2024-04-23_6f26e025c45ac5a7ced1651361a60ed0_cryptolocker.exe
Size

40KB
MD5

6f26e025c45ac5a7ced1651361a60ed0
SHA1

fc4a28fee2e5009c7a1cc1ae30c7a996392c9869
SHA256

72666f9eb2fd3f68665fdf89c80793c662393d10e27eaa0929a89d459db325d6
SHA512

6d891a19a3ae728e19fbcac412aa2cfca6c67d9f6f6c87e96b70083f6d9d48e3be6f6c50581ea7f7eeee0d31e09920734226423edfa0240f05f9871aaa47d258
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HK/wSvuQTCh:X6QFElP6n+gJQMOtEvwDpjBsYK/f+

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000014a94-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000014a94-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2628	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1056	2024-04-23_6f26e025c45ac5a7ced1651361a60ed0_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 1056 wrote to memory of 2628	1056	2024-04-23_6f26e025c45ac5a7ced1651361a60ed0_cryptolocker.exe	28
PID 1056 wrote to memory of 2628	1056	2024-04-23_6f26e025c45ac5a7ced1651361a60ed0_cryptolocker.exe	28
PID 1056 wrote to memory of 2628	1056	2024-04-23_6f26e025c45ac5a7ced1651361a60ed0_cryptolocker.exe	28
PID 1056 wrote to memory of 2628	1056	2024-04-23_6f26e025c45ac5a7ced1651361a60ed0_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-23_6f26e025c45ac5a7ced1651361a60ed0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-23_6f26e025c45ac5a7ced1651361a60ed0_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1056
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2628

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
40KB

MD5
0dce631e02a71df7814e96d024bacf17

SHA1
f6bd87aa3abdefd88e312ff9a071ea34eb23c6f1

SHA256
44ddb2ce92b4dbca888336fa99f42ea7b21cc2f10bba98cc8bdd4efd125c333b

SHA512
be0cd5f8a32d11a0be6693c0b81d5b00c5832c4d687f6fe2f650c4db9b886a6c19e2dc82e85d434e654d63bd8bc5c90d48e3ffdd3954af5a1c95baf5effdd4bb

Download Submit
memory/1056-0-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/1056-1-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/1056-4-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2628-16-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2628-15-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download