1a8cc06a7133f7d356c4d6b86d71157f339feef99ec5dc7789273ff83f5730c7

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
08/03/2024, 19:28

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-03-08_2c0d040453588ba8f73b651dd7b305e8_cryptolocker.exe
Size

46KB
MD5

2c0d040453588ba8f73b651dd7b305e8
SHA1

ded1c25016cdb58e3c499a2141ba981d646678cc
SHA256

1a8cc06a7133f7d356c4d6b86d71157f339feef99ec5dc7789273ff83f5730c7
SHA512

ed63e72fcd91a6d83af7d3cac635a907bc660d5b7a6988a14bab14edddf7600b6038a89afa0593072ee2aa7fe6f3692c74f1f593aa296e4c2dfd2e7cb24c4eaa
SSDEEP

384:icX+ni9VCr5nQI021q4VQBqURYp055TOtOOtEvwDpjqIGR/hHi7/OlI0G/BdK:XS5nQJ24LR1bytOOtEvwDpjNbP/bK

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/916-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x00070000000231a8-13.dat	CryptoLocker_rule2
behavioral2/memory/916-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4788-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4788-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 2 IoCs

resource	yara_rule
behavioral2/memory/916-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/4788-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral2/memory/916-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x00070000000231a8-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/916-18-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4788-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4788-27-0x0000000000500000-0x000000000050F000-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-1-5-21-2727153400-192325109-1870347593-1000\Control Panel\International\Geo\Nation	2024-03-08_2c0d040453588ba8f73b651dd7b305e8_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4788	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 916 wrote to memory of 4788	916	2024-03-08_2c0d040453588ba8f73b651dd7b305e8_cryptolocker.exe	87
PID 916 wrote to memory of 4788	916	2024-03-08_2c0d040453588ba8f73b651dd7b305e8_cryptolocker.exe	87
PID 916 wrote to memory of 4788	916	2024-03-08_2c0d040453588ba8f73b651dd7b305e8_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-03-08_2c0d040453588ba8f73b651dd7b305e8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_2c0d040453588ba8f73b651dd7b305e8_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:916
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4788

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

Loading Replay Monitor...

Downloads

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

Filesize
46KB

MD5
80a572072471e19d344b33f19764314a

SHA1
59511db25b623f7d4a7e8107768d53ffb431ff9e

SHA256
42cab56855d93625cc53f081e402f9618ab3c3b0bca9a45e779b4b5cfc71310b

SHA512
91abdfc4ce90da68747ad45bacce0c7f9c48ea08ceb81e1ead36cca67057911661121904486116f6e096d98245d54861a055adb5902d9da817b55ed225cd832f

Download Submit
memory/916-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/916-1-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download
memory/916-2-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download
memory/916-3-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download
memory/916-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4788-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4788-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4788-26-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4788-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download