6aa33d47b1f86f4c4f54e4ce219a368f57d4356e4417bdd90734ab8bdf2ed437

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
25/02/2024, 13:44

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General

Target

2024-02-25_c5d06455cc1b129d310cf05246f6d6d5_cryptolocker.exe
Size

41KB
MD5

c5d06455cc1b129d310cf05246f6d6d5
SHA1

56d72f6c67f842cc01f68385678b755d1411e4d4
SHA256

6aa33d47b1f86f4c4f54e4ce219a368f57d4356e4417bdd90734ab8bdf2ed437
SHA512

cfa64c11c405d6ea0d05853d343b72351b7a577b8e90ceadc546df111ed792bb61e6d54ddd32b386085bb13e4a8f83353b760ecc31b261a73dd2a05e6e900a42
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6Dy8POKXuy:bIDOw9a0Dwo3P1ojvUSDh1L

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001fc40-12.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-1-5-21-3316742141-2240921845-2885234760-1000\Control Panel\International\Geo\Nation	2024-02-25_c5d06455cc1b129d310cf05246f6d6d5_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3564	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 3300 wrote to memory of 3564	3300	2024-02-25_c5d06455cc1b129d310cf05246f6d6d5_cryptolocker.exe	88
PID 3300 wrote to memory of 3564	3300	2024-02-25_c5d06455cc1b129d310cf05246f6d6d5_cryptolocker.exe	88
PID 3300 wrote to memory of 3564	3300	2024-02-25_c5d06455cc1b129d310cf05246f6d6d5_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-02-25_c5d06455cc1b129d310cf05246f6d6d5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-25_c5d06455cc1b129d310cf05246f6d6d5_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3300
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:3564

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
41KB

MD5
e8c0657105af6624ea09579a56362692

SHA1
c8be270e859ab5b90ef0f2cfbda34930821b7576

SHA256
5b28727880d8f22472e48f927920e896612b824f4dbbe44ad9dbb4337a693d3d

SHA512
f7a8f209772bd408a06f12b4adc1baac3a798f0d67e2c19b2ea18196fbe7e723eb233155ea861b5f028617a0f69ef5c311895caafb98a42bc843277ce9619f0c

Download Submit
memory/3300-0-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/3300-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/3300-2-0x0000000002220000-0x0000000002226000-memory.dmp

Filesize
24KB

Download
memory/3564-18-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/3564-17-0x0000000001FC0000-0x0000000001FC6000-memory.dmp

Filesize
24KB

Download