57791ed234d7b3e1e39ffa9408c775018d750d2b0db45fc688b21710498ba176

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
17/02/2024, 20:45

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General

Target

2024-02-17_cd80cd90ea5ec2e8bc19304ef9e90738_cryptolocker.exe
Size

35KB
MD5

cd80cd90ea5ec2e8bc19304ef9e90738
SHA1

c4396ab3c30429b417e9fa7524ed3cf5bd208b13
SHA256

57791ed234d7b3e1e39ffa9408c775018d750d2b0db45fc688b21710498ba176
SHA512

8f41ba70c8d128cd91ddd36905e296dc62de1e6c6d7cc0f2f81b51e2b64d4eb0be758bd85b39b7bdb0ecbc42cb9df19252f8c2f8fd2e5968d28f08fe7441bca1
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6WaJIOc+UPPEkLK:YGzl5wjRQBBOsP1QMOtEvwDpjgarrkLK

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2536-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a00000001224e-11.dat	CryptoLocker_rule2
behavioral1/memory/2536-13-0x0000000000600000-0x000000000060B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2536-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1708-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2536-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a00000001224e-11.dat	CryptoLocker_set1
behavioral1/memory/2536-13-0x0000000000600000-0x000000000060B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2536-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1708-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1708	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2536	2024-02-17_cd80cd90ea5ec2e8bc19304ef9e90738_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 2536 wrote to memory of 1708	2536	2024-02-17_cd80cd90ea5ec2e8bc19304ef9e90738_cryptolocker.exe	28
PID 2536 wrote to memory of 1708	2536	2024-02-17_cd80cd90ea5ec2e8bc19304ef9e90738_cryptolocker.exe	28
PID 2536 wrote to memory of 1708	2536	2024-02-17_cd80cd90ea5ec2e8bc19304ef9e90738_cryptolocker.exe	28
PID 2536 wrote to memory of 1708	2536	2024-02-17_cd80cd90ea5ec2e8bc19304ef9e90738_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-17_cd80cd90ea5ec2e8bc19304ef9e90738_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-17_cd80cd90ea5ec2e8bc19304ef9e90738_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2536
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1708

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
35KB

MD5
1ef6f71edb662c29f50c4809d4c133d7

SHA1
fe9be09f3fb120e56581da277ddbdc04dba3f6f9

SHA256
8e2be2421cb4a6d34059819e973f9cba5fcd15017f0ed7927cb39b9180619325

SHA512
033bc4f2a5a1ed6632c03fb27b751799642c90022ee93ff5e981b56b786414dca65882e1c04c8797b5454116f58da387d01375e01da9423660310dc209c1ecc8

Download Submit
memory/1708-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1708-19-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2536-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2536-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2536-2-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2536-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2536-13-0x0000000000600000-0x000000000060B000-memory.dmp

Filesize
44KB

Download
memory/2536-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download