e2727cdf9947905779ae47c144b58ad8e1269a85a9c699efe82899a2774f16cf

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
15/04/2024, 04:44

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General

Target

2024-04-15_54bc295bbdcd5b75c401efdb271f1b03_cryptolocker.exe
Size

51KB
MD5

54bc295bbdcd5b75c401efdb271f1b03
SHA1

1e81e5d45be820269328e5e46d4b43aa64b7c7ce
SHA256

e2727cdf9947905779ae47c144b58ad8e1269a85a9c699efe82899a2774f16cf
SHA512

2ec708fcadb1483cc1e6a16aa79111c9b216fb365343c3d0c2521ce0884332a09e2a5af9aae706ac67060f7d3df5b18647966f4e7f9fcd246db81b0149ec28fa
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6D8jnPxyV4tFVgQ5:bIDOw9a0Dwo3P1ojvUSD4PRtFVgM

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000233e6-12.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-1-5-21-553605503-2331009851-2137262461-1000\Control Panel\International\Geo\Nation	2024-04-15_54bc295bbdcd5b75c401efdb271f1b03_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2092	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 3744 wrote to memory of 2092	3744	2024-04-15_54bc295bbdcd5b75c401efdb271f1b03_cryptolocker.exe	88
PID 3744 wrote to memory of 2092	3744	2024-04-15_54bc295bbdcd5b75c401efdb271f1b03_cryptolocker.exe	88
PID 3744 wrote to memory of 2092	3744	2024-04-15_54bc295bbdcd5b75c401efdb271f1b03_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-04-15_54bc295bbdcd5b75c401efdb271f1b03_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-15_54bc295bbdcd5b75c401efdb271f1b03_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3744
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2092

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
51KB

MD5
4d92481084124dab16522a33d60c2f9a

SHA1
527eea7764ca402a1613b03e89bcbe33c2400f36

SHA256
4064a417bd31e9004b4cd6f8064c21def0808fcbe102472126de10a00b8d13bc

SHA512
9115642caf1b38dca16f4b473ac623ede3ac4380e538bcd0dc6ec00a45f568b143afe57c2dc953fbd6a4be04108acb5164af5a284bac28941e7107183eda1217

Download Submit
memory/2092-17-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download
memory/2092-18-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/3744-0-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/3744-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/3744-2-0x00000000021A0000-0x00000000021A6000-memory.dmp

Filesize
24KB

Download