ac388de0ae5999c4bd5755b0cfd262451f7026e3a9634c4c7b7b03931cbbc1fb

Analysis

max time kernel
113s
max time network
176s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
18/01/2024, 23:33

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General

Target

2024-01-18_f11b7aa1d782019f8005767227101a6b_cryptolocker.exe
Size

43KB
MD5

f11b7aa1d782019f8005767227101a6b
SHA1

03c77e80f90eb2f67b6146ad8e50d012a4240a46
SHA256

ac388de0ae5999c4bd5755b0cfd262451f7026e3a9634c4c7b7b03931cbbc1fb
SHA512

5dd5443122fc892e33e1a19ef6eebd5f86c9e42712ad0165b5d20286d756bdbb1b8255b5e418e0b53ca2cd38c5a9f616db7241eda3779a8e23b6312d151d3960
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37Ylmbk:bgGYcA/53GAA6y37QmY

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0003000000022764-12.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-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation	2024-01-18_f11b7aa1d782019f8005767227101a6b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2732	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 4160 wrote to memory of 2732	4160	2024-01-18_f11b7aa1d782019f8005767227101a6b_cryptolocker.exe	88
PID 4160 wrote to memory of 2732	4160	2024-01-18_f11b7aa1d782019f8005767227101a6b_cryptolocker.exe	88
PID 4160 wrote to memory of 2732	4160	2024-01-18_f11b7aa1d782019f8005767227101a6b_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-01-18_f11b7aa1d782019f8005767227101a6b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-18_f11b7aa1d782019f8005767227101a6b_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4160
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2732

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\hasfj.exe

Filesize
44KB

MD5
0794b54fa18ba119169ee2571ecbba02

SHA1
7fa7a6bbea2d28e94e2661472eb9045cda26ba81

SHA256
78318653d0b0c3979d6d83614b5ef9f889cb8fde9fca62609146cada92f09bac

SHA512
38be532e2f049082be20e96965a75d77e28f950008ecf23939d543077ca687f4cce2f01a5f295da528490090f374a81c65a68c0a203f702951375c12babafa02

Download Submit
memory/2732-17-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/2732-23-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download
memory/4160-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4160-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4160-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download