313b5c4f8481c98f7837b28919f315af76242a210b35efe85edd6d02fefafb96

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
20/02/2024, 12:46

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General

Target

2024-02-20_d521210e265afc65eb6e986061b0ba5f_cryptolocker.exe
Size

54KB
MD5

d521210e265afc65eb6e986061b0ba5f
SHA1

6971b61529e8c5c80c9446049a3839707c7fd92a
SHA256

313b5c4f8481c98f7837b28919f315af76242a210b35efe85edd6d02fefafb96
SHA512

12d4a84871b68d2c608d544ca520004ac94086dc5433ff9d0449c9c19e7eb0932e694cee13da05c6c7519251ee258c28d38db2a62b62fd470c98d1fd09ba3061
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vaTiSfQaV2LJ6:X6QFElP6n+gJBMOtEvwDpjBtE1yILJ6

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224f-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224f-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2708	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2268	2024-02-20_d521210e265afc65eb6e986061b0ba5f_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 2268 wrote to memory of 2708	2268	2024-02-20_d521210e265afc65eb6e986061b0ba5f_cryptolocker.exe	28
PID 2268 wrote to memory of 2708	2268	2024-02-20_d521210e265afc65eb6e986061b0ba5f_cryptolocker.exe	28
PID 2268 wrote to memory of 2708	2268	2024-02-20_d521210e265afc65eb6e986061b0ba5f_cryptolocker.exe	28
PID 2268 wrote to memory of 2708	2268	2024-02-20_d521210e265afc65eb6e986061b0ba5f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-20_d521210e265afc65eb6e986061b0ba5f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-20_d521210e265afc65eb6e986061b0ba5f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2268
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2708

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
54KB

MD5
623c36a758f210393cbb94c459a8f2b3

SHA1
9bf80f5d18cb8e5ae69a319328ba5569f4970211

SHA256
70a49a5f453e74e4fa7afaf3192ef7f08eeb216c7db995a7f5d89dc7559a3fc4

SHA512
024ab2f364b81dee93c44d8970ab57c7a30cb15c516e4b9bad2cb1c7812c15a37d5208e16b2b129b1a531ddb1a60a4bdff45afcbb40969a9c9ce05ff6721ea5b

Download Submit
memory/2268-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2268-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2268-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2708-15-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2708-17-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download