ce8eee83b5a1cf542ef86b4592ffb3be4326ac2e54f2412e07d5c66a3fee0274

Analysis

max time kernel
152s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
29/02/2024, 00:33

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General

Target

2024-02-29_421a2325377f120a39eb68ef7a3f80e1_cryptolocker.exe
Size

46KB
MD5

421a2325377f120a39eb68ef7a3f80e1
SHA1

809ec11a3cac1ac1aa68d21c29c13f5327579c8d
SHA256

ce8eee83b5a1cf542ef86b4592ffb3be4326ac2e54f2412e07d5c66a3fee0274
SHA512

53058fe1283124202be7b1b44052b2dc868ff463d3d82c8b40a2b1f0add6381971cb94f99c6a46bdfa54a10fe19acb07edc89e424671a44a73420a9e71a8bfd4
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YbDu5z/hO:bgGYcA/53GAA6y37nbO

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023264-12.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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-02-29_421a2325377f120a39eb68ef7a3f80e1_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3544	hasfj.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 3100 wrote to memory of 3544	3100	2024-02-29_421a2325377f120a39eb68ef7a3f80e1_cryptolocker.exe	98
PID 3100 wrote to memory of 3544	3100	2024-02-29_421a2325377f120a39eb68ef7a3f80e1_cryptolocker.exe	98
PID 3100 wrote to memory of 3544	3100	2024-02-29_421a2325377f120a39eb68ef7a3f80e1_cryptolocker.exe	98

C:\Users\Admin\AppData\Local\Temp\2024-02-29_421a2325377f120a39eb68ef7a3f80e1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-29_421a2325377f120a39eb68ef7a3f80e1_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3100
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3544

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4164 --field-trial-handle=2280,i,11703952675008463361,17436195144517971517,262144 --variations-seed-version /prefetch:8
1⤵
PID:2004

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\hasfj.exe

Filesize
46KB

MD5
b62ed62643ebd6b2a7cf5a9a1cac84be

SHA1
fc60a074f99fcf0fdcb11df04620f0eedcca9e06

SHA256
ee88540e902df1c06963beffa94beb94df096bad99ecfd1dad661be633968dfe

SHA512
d920d49b1ab53bb7e99ff5f249c4b34622f5a2cdef3244da3b9d3bd560fab005dd9a54bbcf6ef1b90480e6c47e7851211b1a6e74cea793d5834981c8b57fdc08

Download Submit
memory/3100-0-0x0000000002340000-0x0000000002346000-memory.dmp

Filesize
24KB

Download
memory/3100-1-0x0000000002340000-0x0000000002346000-memory.dmp

Filesize
24KB

Download
memory/3100-2-0x0000000002500000-0x0000000002506000-memory.dmp

Filesize
24KB

Download
memory/3544-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/3544-18-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download