da08056e6983e51314a4ded715999c419302b9c24f63795798788ea43e14d3b2

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
19/04/2024, 16:32

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General

Target

2024-04-19_2ce4d988a7122b520c0d4cdb81c6eff6_cryptolocker.exe
Size

41KB
MD5

2ce4d988a7122b520c0d4cdb81c6eff6
SHA1

f15841adc78c6f532139852cc515d25378c2756c
SHA256

da08056e6983e51314a4ded715999c419302b9c24f63795798788ea43e14d3b2
SHA512

687cc59cc9ba09ccce0a569b76ef22c4bfb8276d6102b0d2649ac6b75412ff40c94461a0f38507b8da42bf84278457457933367d0e9f88597541c70282bab6cd
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6DyE9x3uy:bIDOw9a0Dwo3P1ojvUSD79Rz

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e97a-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-1-5-21-2288054676-1871194608-3559553667-1000\Control Panel\International\Geo\Nation	2024-04-19_2ce4d988a7122b520c0d4cdb81c6eff6_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
220	lossy.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 4684 wrote to memory of 220	4684	2024-04-19_2ce4d988a7122b520c0d4cdb81c6eff6_cryptolocker.exe	85
PID 4684 wrote to memory of 220	4684	2024-04-19_2ce4d988a7122b520c0d4cdb81c6eff6_cryptolocker.exe	85
PID 4684 wrote to memory of 220	4684	2024-04-19_2ce4d988a7122b520c0d4cdb81c6eff6_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-04-19_2ce4d988a7122b520c0d4cdb81c6eff6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-19_2ce4d988a7122b520c0d4cdb81c6eff6_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4684
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:220

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\lossy.exe

Filesize
41KB

MD5
34947d7fd7a5fd6de7397923349b47d9

SHA1
a95d3351a41e15033dab699ea79471e545934893

SHA256
7bf961e4a68630aaa82ff9fd59df417008147f02531b49165cbfca363db7e9bc

SHA512
45f26e890b994fa5bd119814f2535c5f581d9873ed6c91bd0a5a86477ce30e788a7f2bdf1e983a5fdb9ddcd8edfcb3e066328596822931c62ef6827c191418ba

Download Submit
memory/220-17-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/220-19-0x0000000001F40000-0x0000000001F46000-memory.dmp

Filesize
24KB

Download
memory/4684-0-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/4684-1-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/4684-2-0x0000000000700000-0x0000000000706000-memory.dmp

Filesize
24KB

Download