64b59315eba6ec29e65f85be4afebfd5223b87e89a1143a31f39e04497fb058b

Analysis

max time kernel
152s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26-01-2024 02:39

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General

Target

2024-01-26_aab51b25751d629b9e9461e2c7148291_cryptolocker.exe
Size

39KB
MD5

aab51b25751d629b9e9461e2c7148291
SHA1

d9d543cfb1224f0679ae874523042a6770bd124a
SHA256

64b59315eba6ec29e65f85be4afebfd5223b87e89a1143a31f39e04497fb058b
SHA512

d289b02fd0bf49939bf105f9b93bafbd80553126da612943cdb34c344625a568799f3de38040438662192e1b6359aec334f6c4e5a4aadb8e077a5b1607ecb466
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6Dy8POKN:bIDOw9a0Dwo3P1ojvUSDhf

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000a000000023012-12.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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-01-26_aab51b25751d629b9e9461e2c7148291_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1592	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 2584 wrote to memory of 1592	2584	2024-01-26_aab51b25751d629b9e9461e2c7148291_cryptolocker.exe	89
PID 2584 wrote to memory of 1592	2584	2024-01-26_aab51b25751d629b9e9461e2c7148291_cryptolocker.exe	89
PID 2584 wrote to memory of 1592	2584	2024-01-26_aab51b25751d629b9e9461e2c7148291_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-01-26_aab51b25751d629b9e9461e2c7148291_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-26_aab51b25751d629b9e9461e2c7148291_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2584
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:1592

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
39KB

MD5
3c524274d9b3a3e17ab5cd0eb48415f8

SHA1
d5cefbe5ff9181b5fa1fd5c9c282469bcbfe26c2

SHA256
078573574228f91ba96c243bc93aea6b1a4e0740bd782b15b08e6d07b955c96e

SHA512
dcb32a9b34df59cae3d4ff22708cdd607987a3b8ea7298f750abd6d4f182fd85cc354631fb5aa0d9c0be7c9a734f52100331ddc2535c2d3db82746e841765f68

Download Submit
memory/1592-18-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/1592-17-0x0000000002030000-0x0000000002036000-memory.dmp

Filesize
24KB

Download
memory/2584-0-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/2584-1-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/2584-2-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download