9d73d4781d6058541844cdf9932d65edf1da904d75f6a593caae2e3445dda44a

Analysis

max time kernel
149s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
01/02/2024, 08:48

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-01_93df23afdf0ffdcd0886913d2d0149e0_cryptolocker.exe
Size

39KB
MD5

93df23afdf0ffdcd0886913d2d0149e0
SHA1

fcda880f4852503ca361d9c1d1db8a014f3a62ef
SHA256

9d73d4781d6058541844cdf9932d65edf1da904d75f6a593caae2e3445dda44a
SHA512

4fd69acdf483ff32a9ef66638105adc47d01387bb6f42afbe29177adec4e22e55844781011275ef58913846f86f3589a0160a67a9d0f1b69fa0cc7aa20404504
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6Dy8Prm:bIDOw9a0Dwo3P1ojvUSDhS

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231e9-12.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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-02-01_93df23afdf0ffdcd0886913d2d0149e0_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
648	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 2416 wrote to memory of 648	2416	2024-02-01_93df23afdf0ffdcd0886913d2d0149e0_cryptolocker.exe	85
PID 2416 wrote to memory of 648	2416	2024-02-01_93df23afdf0ffdcd0886913d2d0149e0_cryptolocker.exe	85
PID 2416 wrote to memory of 648	2416	2024-02-01_93df23afdf0ffdcd0886913d2d0149e0_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-01_93df23afdf0ffdcd0886913d2d0149e0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-01_93df23afdf0ffdcd0886913d2d0149e0_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2416
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:648

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
39KB

MD5
b85ceb5f5f9a981fdfdd94843704cc03

SHA1
57b044edb52dace45bfaed6542da430f9996c0a8

SHA256
fe102e7b7e6f4a34935ceab30b3b605906682d9662656572dd9a2121b2065999

SHA512
2c0c6d3239a7b04269bb26e834551f11f76e331ded77c9882efef66106620558d9fe4a8d3ee60be20fffdc053169c16f08c9b7452436b85ca35bdeaeec12b259

Download Submit
memory/648-17-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/648-19-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2416-0-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/2416-1-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/2416-2-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download