633e5012553c9ef80a7c1d622881662b36b54e87f68ba89ead0a63d5dcf6fdce

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
14/06/2024, 08:02

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General

Target

2024-06-14_600a09157a28bc827854f1af8595ecc4_cryptolocker.exe
Size

43KB
MD5

600a09157a28bc827854f1af8595ecc4
SHA1

5e4e97381161d27eabfb13c8b60153d0b5d62005
SHA256

633e5012553c9ef80a7c1d622881662b36b54e87f68ba89ead0a63d5dcf6fdce
SHA512

d3e2ffa366a5f8b9e7770008b49a5928f4c6813e2c36f6036199a678b204cce2cd464caac6cf6cd3a715b0eecc7f958dbedafd7f7fbfddd23473f84a19d3f150
SSDEEP

768:XS5nQJ24LR1bytOOtEvwDpj66BLbjG9Rva/yYsZnTE:i5nkFGMOtEvwDpjR+viHsy

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/888-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x0008000000022f51-13.dat	CryptoLocker_rule2
behavioral2/memory/888-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/952-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 2 IoCs

resource	yara_rule
behavioral2/memory/888-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/952-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral2/memory/888-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x0008000000022f51-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/888-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/952-27-0x0000000000500000-0x000000000050F000-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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	2024-06-14_600a09157a28bc827854f1af8595ecc4_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
952	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 888 wrote to memory of 952	888	2024-06-14_600a09157a28bc827854f1af8595ecc4_cryptolocker.exe	83
PID 888 wrote to memory of 952	888	2024-06-14_600a09157a28bc827854f1af8595ecc4_cryptolocker.exe	83
PID 888 wrote to memory of 952	888	2024-06-14_600a09157a28bc827854f1af8595ecc4_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-06-14_600a09157a28bc827854f1af8595ecc4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-14_600a09157a28bc827854f1af8595ecc4_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:888
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:952

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
43KB

MD5
d52a92d0f6061d376e85ab796878a0e1

SHA1
f87a6897e23760efec0c35319b648864ac5670c1

SHA256
89becd1facf67de221421b0dd9839ae2d1a359fb764924c2e82bc355f7fc51e4

SHA512
ef0ed85f40599012aad9a7ef5f17ee9fd235a2cf8a2572003665463f6522583cf4d40d64536772cb18af3c6f28402288dfa433a4edfdc1ff8f977853a411e738

Download Submit
memory/888-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/888-1-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/888-2-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/888-3-0x0000000000680000-0x0000000000686000-memory.dmp

Filesize
24KB

Download
memory/888-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/952-20-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/952-26-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/952-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download