f85984217bffc436700037689de600b67e0593a2dfb9e676e5986bbf323de093

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
27/02/2024, 18:46

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General

Target

2024-02-27_a7c92a05b9641f6574aeda2763a5666a_cryptolocker.exe
Size

48KB
MD5

a7c92a05b9641f6574aeda2763a5666a
SHA1

9e0f8d911ac12ffdce5cf2aaf10ff9f70175be2c
SHA256

f85984217bffc436700037689de600b67e0593a2dfb9e676e5986bbf323de093
SHA512

e8fba65d60eca6cbd4081459a656e2fa15ab2b1f582a6f13c3229b572857dbb2f4262af58b00ccff7bbab4379fe8fbff361cc20d6c0a95e7e5cdc681246f1c60
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YbDu5z/hQcEp77:bgGYcA/53GAA6y37nbQB

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001231a-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2692	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2328	2024-02-27_a7c92a05b9641f6574aeda2763a5666a_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 2328 wrote to memory of 2692	2328	2024-02-27_a7c92a05b9641f6574aeda2763a5666a_cryptolocker.exe	28
PID 2328 wrote to memory of 2692	2328	2024-02-27_a7c92a05b9641f6574aeda2763a5666a_cryptolocker.exe	28
PID 2328 wrote to memory of 2692	2328	2024-02-27_a7c92a05b9641f6574aeda2763a5666a_cryptolocker.exe	28
PID 2328 wrote to memory of 2692	2328	2024-02-27_a7c92a05b9641f6574aeda2763a5666a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-27_a7c92a05b9641f6574aeda2763a5666a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-27_a7c92a05b9641f6574aeda2763a5666a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2328
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2692

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\hasfj.exe

Filesize
48KB

MD5
916a15007ca74cc57817134bfd55fb0a

SHA1
5543868ed8b55472ce321227e9c2c17ec901d342

SHA256
ad7e4c51def9e36a5428d67f45307e4708ca0cc042b18159d4861cfb126bf4e2

SHA512
3cfc2423ac445421a3017176edcedb40fd883b2cfcad3a52cd0cb95f42190c7501bca45c2fe80a66f06918845eddd7a84fc5c41e85e5c5ef21a1ac9f28e47dd9

Download Submit
memory/2328-0-0x0000000002920000-0x0000000002926000-memory.dmp

Filesize
24KB

Download
memory/2328-1-0x0000000002D00000-0x0000000002D06000-memory.dmp

Filesize
24KB

Download
memory/2328-8-0x0000000002920000-0x0000000002926000-memory.dmp

Filesize
24KB

Download
memory/2692-16-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2692-15-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download