1cc7478b56f8d54caeb3841054e82a5e80a7a535d3266c78d63bb2663f3111c1

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
28-03-2024 00:47

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General

Target

2024-03-28_bab3560111ca8b41570e1a9e7213025f_cryptolocker.exe
Size

47KB
MD5

bab3560111ca8b41570e1a9e7213025f
SHA1

a2a2945d201aee265d688e24845e3738d017a1a0
SHA256

1cc7478b56f8d54caeb3841054e82a5e80a7a535d3266c78d63bb2663f3111c1
SHA512

d78d6a856488c5b9f53956de6e2236bb7eb2dd2322d60cbe41e44973f35cd1083123ebf2fe338a561408a5f5d823193dab9da4b567d2b37903a44b8edac24722
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu556Blvo:X6QFElP6n+gJQMOtEvwDpjB0GIWSlvo

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00080000000231d6-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x00080000000231d6-12.dat	CryptoLocker_set1

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-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	2024-03-28_bab3560111ca8b41570e1a9e7213025f_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2852	asih.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 1640 wrote to memory of 2852	1640	2024-03-28_bab3560111ca8b41570e1a9e7213025f_cryptolocker.exe	86
PID 1640 wrote to memory of 2852	1640	2024-03-28_bab3560111ca8b41570e1a9e7213025f_cryptolocker.exe	86
PID 1640 wrote to memory of 2852	1640	2024-03-28_bab3560111ca8b41570e1a9e7213025f_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-03-28_bab3560111ca8b41570e1a9e7213025f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-28_bab3560111ca8b41570e1a9e7213025f_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1640
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2852

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\asih.exe

Filesize
47KB

MD5
00741d93b688d36d65d90bcf4030d3eb

SHA1
e53179b923543fe4d5d333685fbaf377856845ea

SHA256
e49337c358580d993b026459484dd0746b5152fcc163d6e9f89d46c5ecd5efdd

SHA512
8e8be96f64f3f15979fff0bb8c3d16171137277e56b02e3b457fba97358eeae2ea11e1f1246e6d5f80482bb55704b41cb342d84f49ce8372a6a9b1cb480e9777

Download Submit
memory/1640-0-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/1640-1-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/1640-2-0x0000000002240000-0x0000000002246000-memory.dmp

Filesize
24KB

Download
memory/2852-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2852-18-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download