a808130e47f33eda49eb74fa439de9f70249a9d2f1acca70cd75c2766c8e2f0e

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
22/02/2024, 09:08 UTC

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General

Target

2024-02-22_b75ee538df2b93b7cab65d35a9ee96ad_cryptolocker.exe
Size

124KB
MD5

b75ee538df2b93b7cab65d35a9ee96ad
SHA1

cbf5e7c68e38264276cde8cc00dddb0e8f2850eb
SHA256

a808130e47f33eda49eb74fa439de9f70249a9d2f1acca70cd75c2766c8e2f0e
SHA512

7e96ebc6f6fc7b124bdef1e9cae9d3d9ddf49ba665a95eb89cca781fc1fccef4c443de10624d98344eff812404ec8236f8f332eb46163581f939f718b4e73ae3
SSDEEP

1536:gUj+AIMOtEvwDpjNbwQEIPlemUhYwkkxE4V:vCA9OtEvwDpjQ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012321-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012321-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2624	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1288	2024-02-22_b75ee538df2b93b7cab65d35a9ee96ad_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 1288 wrote to memory of 2624	1288	2024-02-22_b75ee538df2b93b7cab65d35a9ee96ad_cryptolocker.exe	28
PID 1288 wrote to memory of 2624	1288	2024-02-22_b75ee538df2b93b7cab65d35a9ee96ad_cryptolocker.exe	28
PID 1288 wrote to memory of 2624	1288	2024-02-22_b75ee538df2b93b7cab65d35a9ee96ad_cryptolocker.exe	28
PID 1288 wrote to memory of 2624	1288	2024-02-22_b75ee538df2b93b7cab65d35a9ee96ad_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-22_b75ee538df2b93b7cab65d35a9ee96ad_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_b75ee538df2b93b7cab65d35a9ee96ad_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1288
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2624

Network

DNS

bestccc.com

misid.exe

Remote address:

8.8.8.8:53

Request

bestccc.com

IN A

Response

bestccc.com

IN A

103.14.121.240

103.14.121.240:443

bestccc.com

misid.exe

152 B
3
103.14.121.240:443

bestccc.com

misid.exe

152 B
3
103.14.121.240:443

bestccc.com

misid.exe

152 B
3
103.14.121.240:443

bestccc.com

misid.exe

152 B
3
103.14.121.240:443

bestccc.com

misid.exe

152 B
3
103.14.121.240:443

bestccc.com

misid.exe

152 B
3
103.14.121.240:443

bestccc.com

misid.exe

152 B
3
103.14.121.240:443

bestccc.com

misid.exe

52 B
1

8.8.8.8:53

bestccc.com

dns

misid.exe

57 B
73 B
1
1

DNS Request

bestccc.com

DNS Response

103.14.121.240

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\misid.exe

Filesize
124KB

MD5
669674107ab88b28a966f9c751e6073c

SHA1
4051513925159de71c3e457d4f6067815466fefc

SHA256
1de8eb4385b18bbc94a3b6b3f76dd10bec723448bb5d913ad6139f3f44228022

SHA512
587b4427c86ca5467bf9bc16b21c01861bdcec5e6a0458eff8af99ec2bf7a00c49bb55df310e668751bb929ff49cc837dd2f5b34d1636aebd3eb3415030f411d

Download Submit
memory/1288-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1288-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1288-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2624-15-0x00000000020B0000-0x00000000020B6000-memory.dmp

Filesize
24KB

Download
memory/2624-17-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download