da4d4bfdfa53d7e21aa78f9ad7c689f8dbae041734534837b382b44fec3fdaa5

Analysis

max time kernel
151s
max time network
151s
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, 04:32

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General

Target

2024-03-15_450d232d0ac49f317e8a436cd2865999_cryptolocker.exe
Size

41KB
MD5

450d232d0ac49f317e8a436cd2865999
SHA1

cd37ba219f7c6bbc9d65f954ac26441f63fe82bc
SHA256

da4d4bfdfa53d7e21aa78f9ad7c689f8dbae041734534837b382b44fec3fdaa5
SHA512

f18a6ada928782bdb09ee473215f2988f6febb7a21d4bc664c43f63f5cab139f2e9306a9449c8dd22afb03f12dcb29ebbd9f2b1700af68a02dcc48323e5d980c
SSDEEP

768:TS5nQJ24LR7tOOtEvwDpjGqPhqlcnvhx5/xFRQC:m5nkFNMOtEvwDpjG8hhX6C

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/3556-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x0008000000023267-13.dat	CryptoLocker_rule2
behavioral2/memory/3556-25-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/5932-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 2 IoCs

resource	yara_rule
behavioral2/memory/3556-25-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral2/memory/5932-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral2/memory/3556-0-0x0000000000500000-0x000000000050E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x0008000000023267-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/3556-25-0x0000000000500000-0x000000000050E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/5932-26-0x0000000000500000-0x000000000050E000-memory.dmp	INDICATOR_EXE_Packed_MPress

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_450d232d0ac49f317e8a436cd2865999_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
5932	misid.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 3556 wrote to memory of 5932	3556	2024-03-15_450d232d0ac49f317e8a436cd2865999_cryptolocker.exe	98
PID 3556 wrote to memory of 5932	3556	2024-03-15_450d232d0ac49f317e8a436cd2865999_cryptolocker.exe	98
PID 3556 wrote to memory of 5932	3556	2024-03-15_450d232d0ac49f317e8a436cd2865999_cryptolocker.exe	98

C:\Users\Admin\AppData\Local\Temp\2024-03-15_450d232d0ac49f317e8a436cd2865999_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-15_450d232d0ac49f317e8a436cd2865999_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3556
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:5932

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=1324 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8
1⤵
PID:1720

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\misid.exe

Filesize
41KB

MD5
5b869202bf0391597fd0faa0e5d0ee25

SHA1
b217a3526c6894161070294abd35222a099c73b5

SHA256
bff899ed1adc0aa9535353669331dd2d3c06857eabf9e088116836e06fc06c22

SHA512
d1731a67b054d110cc22c2066d35ff4254bf2b0e3e063d11068f93445e67217687481f246c1b5ec471e36759c0b9ddf68dd20208ade13544da29c06aaabee6a1

Download Submit
memory/3556-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/3556-1-0x0000000000700000-0x0000000000706000-memory.dmp

Filesize
24KB

Download
memory/3556-2-0x0000000000700000-0x0000000000706000-memory.dmp

Filesize
24KB

Download
memory/3556-3-0x0000000002240000-0x0000000002246000-memory.dmp

Filesize
24KB

Download
memory/3556-25-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/5932-18-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/5932-19-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/5932-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download