18d243a100eb20280e88e1349bdb4cc4bec1d99c6830ef5ddf0f30509fa679e2

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240319-en
resource tags

arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system
submitted
26-03-2024 23:21

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General

Target

2024-03-26_0a12692ae2a89e1b4d9a977bb64d5051_cryptolocker.exe
Size

387KB
MD5

0a12692ae2a89e1b4d9a977bb64d5051
SHA1

1582c1c8b5f6bcd5758b39c77e037f9ae4ff67bf
SHA256

18d243a100eb20280e88e1349bdb4cc4bec1d99c6830ef5ddf0f30509fa679e2
SHA512

a936de4568d4d82ae78e505a720155955e5a6d9155b02b2a76095f355c01d6b802b5905e132b8888d9ef965ca36bdb3e122182d157e58d1f836ea6472e39e2d8
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXF:nnOflT/ZFIjBz3xjTxynGUOUhXF

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023309-12.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-1-5-21-817259280-2658881748-983986378-1000\Control Panel\International\Geo\Nation	2024-03-26_0a12692ae2a89e1b4d9a977bb64d5051_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4088	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 4536 wrote to memory of 4088	4536	2024-03-26_0a12692ae2a89e1b4d9a977bb64d5051_cryptolocker.exe	98
PID 4536 wrote to memory of 4088	4536	2024-03-26_0a12692ae2a89e1b4d9a977bb64d5051_cryptolocker.exe	98
PID 4536 wrote to memory of 4088	4536	2024-03-26_0a12692ae2a89e1b4d9a977bb64d5051_cryptolocker.exe	98

C:\Users\Admin\AppData\Local\Temp\2024-03-26_0a12692ae2a89e1b4d9a977bb64d5051_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-26_0a12692ae2a89e1b4d9a977bb64d5051_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4536
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4088

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=3688 --field-trial-handle=2228,i,17475224967547320003,13667387715861799238,262144 --variations-seed-version /prefetch:8
1⤵
PID:4056

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\hasfj.exe

Filesize
387KB

MD5
1b7032d18cf85b13985b827e5569ed1a

SHA1
69cb6e17784a9822c77cd4515cfb44cf1035226c

SHA256
e330316dce6baf6ff726d9fb925163db35504aa4ae74f4a8143fdde688497c63

SHA512
555cd3900cd6a63b23eb054196e1c5733d8b300711199ef390fcb96ddb0a519b9ec4559fa8d43dec82dbb6a3870700b5c3cd0599935da92654137d2b0e6ba3c9

Download Submit
memory/4536-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4536-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4536-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download