14df634e3e23a37b6dfd6c035a41d0a3a78f30e16b220c353406ab043c46119f

Analysis

max time kernel
110s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
27/02/2024, 19:26

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General

Target

2024-02-27_4141d21b9e4096dfa912fd45f355c7e1_cryptolocker.exe
Size

49KB
MD5

4141d21b9e4096dfa912fd45f355c7e1
SHA1

85fc121d0075fefede08c1ecaea2dd861a725d19
SHA256

14df634e3e23a37b6dfd6c035a41d0a3a78f30e16b220c353406ab043c46119f
SHA512

afa379459a46412b840ed69ada45eaec53d95a6d6d73ec19c7963fb267e68bbaf4c13c6ebce0e14862014b40cf5523ec75c5064a29752077f24337b4518712da
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37Yl6dIKld5CSz8:bgGYcA/53GAA6y37Q6dI+d5b8

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002324a-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	2024-02-27_4141d21b9e4096dfa912fd45f355c7e1_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4280	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 2380 wrote to memory of 4280	2380	2024-02-27_4141d21b9e4096dfa912fd45f355c7e1_cryptolocker.exe	97
PID 2380 wrote to memory of 4280	2380	2024-02-27_4141d21b9e4096dfa912fd45f355c7e1_cryptolocker.exe	97
PID 2380 wrote to memory of 4280	2380	2024-02-27_4141d21b9e4096dfa912fd45f355c7e1_cryptolocker.exe	97

C:\Users\Admin\AppData\Local\Temp\2024-02-27_4141d21b9e4096dfa912fd45f355c7e1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-27_4141d21b9e4096dfa912fd45f355c7e1_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4280

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=3716 --field-trial-handle=2252,i,16504368816373493055,9578615028378602855,262144 --variations-seed-version /prefetch:8
1⤵
PID:5040

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
49KB

MD5
d701c28a3f9e7d6e1b2ac918797271ff

SHA1
0d86b20d8bfacee32b50c2e8677f7ccbfe04165e

SHA256
3b684e8b8c586ae10c34bd24fbfb6f7d0964fceb0db8803925d859881e10c796

SHA512
b9476a69e104c1457f57acd16b441190d0fca63d56f5ac42c44bb7f0eb224610d56dde643228afd847e5e739da01487409eef80c0e103d4fe5201be771c902ff

Download Submit
memory/2380-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2380-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2380-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4280-18-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download