8a62d1524639d6a9ceef2a3b169e1cfd988ff11b93900c563fdc9bbeef91f4e0

Analysis

max time kernel
151s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
04/02/2024, 09:40

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General

Target

2024-02-04_759645d1007b984550d2201798630366_cryptolocker.exe
Size

52KB
MD5

759645d1007b984550d2201798630366
SHA1

562ebb50073af49ea6b2a71a1f04a3a2f493a0fe
SHA256

8a62d1524639d6a9ceef2a3b169e1cfd988ff11b93900c563fdc9bbeef91f4e0
SHA512

8c8cf59df073abd7ca460f888e0d5d8d7542541be513f1146ebb13fc876d09ca5b9f035a3296af73b57db113b97882c72ccb2777940ebf7d605ad1f5794c302c
SSDEEP

768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9XbTbmhTB/:bIDOw9a0DwitDZzcTQ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023121-12.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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-02-04_759645d1007b984550d2201798630366_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3548	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 880 wrote to memory of 3548	880	2024-02-04_759645d1007b984550d2201798630366_cryptolocker.exe	84
PID 880 wrote to memory of 3548	880	2024-02-04_759645d1007b984550d2201798630366_cryptolocker.exe	84
PID 880 wrote to memory of 3548	880	2024-02-04_759645d1007b984550d2201798630366_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-04_759645d1007b984550d2201798630366_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-04_759645d1007b984550d2201798630366_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:880
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:3548

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
52KB

MD5
ac7f02f7af6226a6b307c73282148f48

SHA1
2ee0aa08a969722cde190ec8509a3167759e03a2

SHA256
0e792568ad13ae4228f00a9aa98e9b8c24d20fe51b459d47f4daf6f108a68488

SHA512
cbb6f171710ae0acdf7181fbcf9bc8dac012f91507c5382342cc2fa0460b745400305cdc0ddabef86126961c10ba627ed9e49d78e421ab1cc503c255d7901043

Download Submit
memory/880-0-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/880-1-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/880-2-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download
memory/3548-18-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/3548-17-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download