ec28076a58f45923cb9e14e191c96a900e99d26412fd176016e405d7baa7ad72

Analysis

max time kernel
150s
max time network
146s
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, 09:42

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-04-15_49953930d0c4b09b9e3a72143d984577_cryptolocker.exe
Size

54KB
MD5

49953930d0c4b09b9e3a72143d984577
SHA1

aff32fefad72309ca8036e5dc6f2d096ac941e41
SHA256

ec28076a58f45923cb9e14e191c96a900e99d26412fd176016e405d7baa7ad72
SHA512

ae25a6b3588b0405922516c284113ade519073b334a29d92863cb739fcc24d4f738c93dbb7650b5c5e7474c6bbf6e111d451de22bfe765f2df2d5e3632567729
SSDEEP

768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9XbTb8puq:bIDOw9a0DwitDZzcTLq

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e97c-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-1-5-21-355664440-2199602304-1223909400-1000\Control Panel\International\Geo\Nation	2024-04-15_49953930d0c4b09b9e3a72143d984577_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4136	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 4216 wrote to memory of 4136	4216	2024-04-15_49953930d0c4b09b9e3a72143d984577_cryptolocker.exe	85
PID 4216 wrote to memory of 4136	4216	2024-04-15_49953930d0c4b09b9e3a72143d984577_cryptolocker.exe	85
PID 4216 wrote to memory of 4136	4216	2024-04-15_49953930d0c4b09b9e3a72143d984577_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-04-15_49953930d0c4b09b9e3a72143d984577_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-15_49953930d0c4b09b9e3a72143d984577_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4216
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:4136

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

Loading Replay Monitor...

Downloads

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

Filesize
54KB

MD5
d8a0a525818b31c0ffc1e85b584c2b5b

SHA1
f38cc125701566f3f58d876f798fac408e986836

SHA256
2ebc2c76bf048b3814ecc0422296c5a7fc914b072fbac4d39a7a5a2ff7ad5c3c

SHA512
7ad8d97b5af2c4ff5d842f257baa03fbc032def26de9d2b2f3a757d08e3ad111628292b2f9679f6ed9c03c50218e9c802cb82319e367c6b7c72e9fe3bb9d7395

Download Submit
memory/4136-17-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/4136-20-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/4216-0-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download
memory/4216-1-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download
memory/4216-2-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download