cc9f4a20a690327c3b485148fdf80a5b20a2206ae4970d8652aa68aa0d581089

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
30/04/2024, 03:02

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General

Target

2024-04-30_f302807b977c278a748dad21a665f535_cryptolocker.exe
Size

55KB
MD5

f302807b977c278a748dad21a665f535
SHA1

765bacef7b3e38c2c4dbdefde07815e721061d64
SHA256

cc9f4a20a690327c3b485148fdf80a5b20a2206ae4970d8652aa68aa0d581089
SHA512

5e3dd88c950b1e2c560567f04682db999fe9c9c52acf2e05638cdcf29971034046e6335730fd4fefcaecd977e496c90f2086bdebcfe36cfe8bbe6bc73bb989f0
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5QJz7/elM:6j+1NMOtEvwDpjr8oxExelM

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/808-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000d000000023af1-13.dat	CryptoLocker_rule2
behavioral2/memory/808-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4464-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4464-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral2/memory/808-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x000d000000023af1-13.dat	CryptoLocker_set1
behavioral2/memory/808-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/4464-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/4464-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral2/memory/808-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x000d000000023af1-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/808-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4464-18-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4464-27-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

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-1-5-21-3726321484-1950364574-433157660-1000\Control Panel\International\Geo\Nation	2024-04-30_f302807b977c278a748dad21a665f535_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4464	misid.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 808 wrote to memory of 4464	808	2024-04-30_f302807b977c278a748dad21a665f535_cryptolocker.exe	83
PID 808 wrote to memory of 4464	808	2024-04-30_f302807b977c278a748dad21a665f535_cryptolocker.exe	83
PID 808 wrote to memory of 4464	808	2024-04-30_f302807b977c278a748dad21a665f535_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-04-30_f302807b977c278a748dad21a665f535_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_f302807b977c278a748dad21a665f535_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:808
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4464

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\misid.exe

Filesize
56KB

MD5
d5eb6a1028d5dd7ad9f0e84e2b637069

SHA1
c39db8c39bb4a1717cedb1fcbe515657cf79e5d8

SHA256
e53fef3c3a13b5dd7831f9146360faeec9baaf4ae4a96bfddc6f9bc52e281d39

SHA512
5086e7c59d72ff5c59fdfbf8e4fb09d5a0ae755e3e0c78eee034ec27d76187152796a3302bec1e05a26f80bf1f34da3274b18fd9ed2dd717dccf75b2e2b31c54

Download Submit
memory/808-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/808-1-0x0000000000850000-0x0000000000856000-memory.dmp

Filesize
24KB

Download
memory/808-2-0x0000000000870000-0x0000000000876000-memory.dmp

Filesize
24KB

Download
memory/808-9-0x0000000000850000-0x0000000000856000-memory.dmp

Filesize
24KB

Download
memory/808-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4464-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4464-20-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/4464-26-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/4464-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download