2c280ffb7eb4c96ef8397408003d55d719027387da8c1a866d92feb33d27ab76

Analysis

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

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
15/04/2024, 21:35

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General

Target

2024-04-15_a28969a1da5c67d13f6f2de850e6e8d1_cryptolocker.exe
Size

389KB
MD5

a28969a1da5c67d13f6f2de850e6e8d1
SHA1

c9de46351da956a9d611b79ffe1d532a8f2ce14c
SHA256

2c280ffb7eb4c96ef8397408003d55d719027387da8c1a866d92feb33d27ab76
SHA512

d8ae11a4f3fdffec99d9183462213eb9e87c038aac4c1a57f9d269a50eae44d7f8f6633c06f35b5ae32e24a279fd7f77865ef6eccd63aabdb714751991126a74
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXo:nnOflT/ZFIjBz3xjTxynGUOUhXo

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e970-12.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-1-5-21-2177723727-746291240-1644359950-1000\Control Panel\International\Geo\Nation	2024-04-15_a28969a1da5c67d13f6f2de850e6e8d1_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1360	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 2132 wrote to memory of 1360	2132	2024-04-15_a28969a1da5c67d13f6f2de850e6e8d1_cryptolocker.exe	86
PID 2132 wrote to memory of 1360	2132	2024-04-15_a28969a1da5c67d13f6f2de850e6e8d1_cryptolocker.exe	86
PID 2132 wrote to memory of 1360	2132	2024-04-15_a28969a1da5c67d13f6f2de850e6e8d1_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-04-15_a28969a1da5c67d13f6f2de850e6e8d1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-15_a28969a1da5c67d13f6f2de850e6e8d1_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2132
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1360

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
389KB

MD5
c1a5e45518acc2a04517acb228333975

SHA1
be00a752ec9682680d78a706db9e3936a128fe18

SHA256
a6b9f3130e12dab85aaadb8f616190b4eb2d38e7868b1e9ca505afc1d1932bb9

SHA512
4648cbf6a994078574653d93bec1039595f65c0fde89bd17501e8bb31317571715786b20384d2b7f14d65feb68ef937f86f47960b634dc29a3d7ba30396d561c

Download Submit
memory/1360-17-0x0000000002020000-0x0000000002026000-memory.dmp

Filesize
24KB

Download
memory/1360-18-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/2132-0-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/2132-1-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/2132-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download