f0989d8bdd2c890b8b6c234285e6109db48556ef4eebbd155adddbef8f89af8d

Analysis

max time kernel
153s
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
15/03/2024, 20:02

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General

Target

2024-03-15_f9ebb35f372b2df31553d275761867cd_cryptolocker.exe
Size

386KB
MD5

f9ebb35f372b2df31553d275761867cd
SHA1

116bf845a76a816a02b848f1c85d4aba48f952b0
SHA256

f0989d8bdd2c890b8b6c234285e6109db48556ef4eebbd155adddbef8f89af8d
SHA512

2ad254c6993fd06f974c15bf57a384476d7daf4280dba529aea2b498d9f31ab2f93f66d6211322a3c8d75b247647264ef1a80a40309285c118c9f9479d6a4db5
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXZ:nnOflT/ZFIjBz3xjTxynGUOUhXZ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0010000000023259-12.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	2024-03-15_f9ebb35f372b2df31553d275761867cd_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4500	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 5032 wrote to memory of 4500	5032	2024-03-15_f9ebb35f372b2df31553d275761867cd_cryptolocker.exe	100
PID 5032 wrote to memory of 4500	5032	2024-03-15_f9ebb35f372b2df31553d275761867cd_cryptolocker.exe	100
PID 5032 wrote to memory of 4500	5032	2024-03-15_f9ebb35f372b2df31553d275761867cd_cryptolocker.exe	100

C:\Users\Admin\AppData\Local\Temp\2024-03-15_f9ebb35f372b2df31553d275761867cd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-15_f9ebb35f372b2df31553d275761867cd_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5032
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4500

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=4040 --field-trial-handle=2292,i,2103142837140538807,15881446839139365070,262144 --variations-seed-version /prefetch:8
1⤵
PID:3832

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
387KB

MD5
fab7f7cffe1ea1caa6419e3b4e6321c0

SHA1
504b289d97cfccbe33db2ed5ade779dbba266358

SHA256
1ffc8f0ed891ede5d93d4d5d8233e6f03343bdba9300c5bfc87ccd71e90a4177

SHA512
6ef4411b7cc7a3f9d8eadf4d9e13d71195c589bfcd1ebc92b5c4f6a5238d3444b9cfb92088facb42912ecfed1ed81a1c0a48bf42e65d1665a2b53e951662d243

Download Submit
memory/4500-17-0x0000000002ED0000-0x0000000002ED6000-memory.dmp

Filesize
24KB

Download
memory/4500-23-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/5032-0-0x00000000022D0000-0x00000000022D6000-memory.dmp

Filesize
24KB

Download
memory/5032-1-0x00000000022D0000-0x00000000022D6000-memory.dmp

Filesize
24KB

Download
memory/5032-2-0x0000000002300000-0x0000000002306000-memory.dmp

Filesize
24KB

Download