1e56714a4843d321f02e1dde08674a0308e9c0bf983d513b58a9beb1e6d6155d

Analysis

max time kernel
150s
max time network
166s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
19/02/2024, 16:44

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General

Target

2024-02-19_9d46de951ed5e4c09f88cdc4897ba053_cryptolocker.exe
Size

45KB
MD5

9d46de951ed5e4c09f88cdc4897ba053
SHA1

4e0c091552e2dd70d5a6326aa06acabea084df95
SHA256

1e56714a4843d321f02e1dde08674a0308e9c0bf983d513b58a9beb1e6d6155d
SHA512

e04d9a70c9ba60a021aea2c2fd0ec9aece23aceaa93b67c6b2300cb676cdc796fd22e99024692544e641401313efdf1302edad4bf7cb845490d210027fd12a91
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6D8jnPxysmC4Rnm:bIDOw9a0Dwo3P1ojvUSD4PWnm

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231ed-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation	2024-02-19_9d46de951ed5e4c09f88cdc4897ba053_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2852	lossy.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4572 wrote to memory of 2852	4572	2024-02-19_9d46de951ed5e4c09f88cdc4897ba053_cryptolocker.exe	60
PID 4572 wrote to memory of 2852	4572	2024-02-19_9d46de951ed5e4c09f88cdc4897ba053_cryptolocker.exe	60
PID 4572 wrote to memory of 2852	4572	2024-02-19_9d46de951ed5e4c09f88cdc4897ba053_cryptolocker.exe	60

C:\Users\Admin\AppData\Local\Temp\2024-02-19_9d46de951ed5e4c09f88cdc4897ba053_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_9d46de951ed5e4c09f88cdc4897ba053_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4572
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2852

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\lossy.exe

Filesize
45KB

MD5
1970c287afc116dfed17e7250a3dfbc6

SHA1
b43b2a25c8cf5b8fee739ea3ac50a518eb70cefe

SHA256
843cdb3297987b8e0d86f87557f0c5112b4bd23ffbd4371615e7ef2fe630d525

SHA512
24d77738b138f05485337857e665caf4b358d882982cf9455ac947a73f852c6868c772e3820fb9803c3d2639053e10fa8006034860ea40eaa1a4b21c8c561912

Download Submit
memory/2852-19-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/2852-17-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/4572-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/4572-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/4572-2-0x00000000021A0000-0x00000000021A6000-memory.dmp

Filesize
24KB

Download