d3cab709976536891c5efc408bb65d4903a8e12a05ac7a7f7e3974ef2af52b2b

Analysis

max time kernel
143s
max time network
163s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
18-04-2024 10:41

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General

Target

2024-04-18_aede190998646101976f622d8d30782b_cryptolocker.exe
Size

102KB
MD5

aede190998646101976f622d8d30782b
SHA1

4349ffe6add0d9dfeba4f98e5f28435bc203ca05
SHA256

d3cab709976536891c5efc408bb65d4903a8e12a05ac7a7f7e3974ef2af52b2b
SHA512

735d2f193bcf3cda2f1bb94cf9f4dd69c3ea2e305c0994dccbbb6d438db17a567b2062e2c228213de22726adfafb6ce71889e484ed4e542d0125ca0b0bc46988
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mktJHlv/k2NMeo6:xj+VGMOtEvwDpjubwQEIiVmkxv/Lo6

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/5016-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x00090000000233d2-13.dat	CryptoLocker_rule2
behavioral2/memory/5016-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4656-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral2/memory/5016-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x00090000000233d2-13.dat	CryptoLocker_set1
behavioral2/memory/5016-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/memory/4656-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral2/memory/5016-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x00090000000233d2-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/5016-17-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4656-26-0x0000000000500000-0x0000000000510000-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-1-5-21-3198953144-1466794930-246379610-1000\Control Panel\International\Geo\Nation	2024-04-18_aede190998646101976f622d8d30782b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4656	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 5016 wrote to memory of 4656	5016	2024-04-18_aede190998646101976f622d8d30782b_cryptolocker.exe	87
PID 5016 wrote to memory of 4656	5016	2024-04-18_aede190998646101976f622d8d30782b_cryptolocker.exe	87
PID 5016 wrote to memory of 4656	5016	2024-04-18_aede190998646101976f622d8d30782b_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-04-18_aede190998646101976f622d8d30782b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-18_aede190998646101976f622d8d30782b_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5016
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4656

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
102KB

MD5
843a029d7ef0eceb48c23ce3ac349d58

SHA1
ee00845054e5f0429e9293c46735464e7a315608

SHA256
c9ea0c919bb32c6e1855ab6613bf417e127677c07f5540748724b79f68205a0f

SHA512
ca6a3c06619e94699805a1e8a69094b16d5f0025a6bcb19becaab7ccb19e4d9685d1c367a87a90111add345b0216ca37e3e8ea2a7f95a9cf7fd85d978db53bf6

Download Submit
memory/4656-19-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/4656-25-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4656-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/5016-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/5016-1-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/5016-2-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/5016-3-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/5016-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download