04725c6c27392120e0f973fed104c049f6a07fa4ec5ca7836d7fc1323af42458

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
23/02/2024, 21:01

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General

Target

2024-02-23_fdd37eba78945d743b2d99c05771c878_cryptolocker.exe
Size

38KB
MD5

fdd37eba78945d743b2d99c05771c878
SHA1

d3f8aa296086aaaad77e7019fdd99e824cbc31b2
SHA256

04725c6c27392120e0f973fed104c049f6a07fa4ec5ca7836d7fc1323af42458
SHA512

ffe1fd6493e17f0d36c8cf790705a71b4ce241c0239a8d37d1b6f89e281994bb5c7112fccd8176b565b7d2c7e79b29ee2032a9470ceb21c4848f11498b5cb45f
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLen7n+1:ZzFbxmLPWQMOtEvwDpjLeu

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00c300000001e848-13.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-1-5-21-2132103209-3755304320-2959162027-1000\Control Panel\International\Geo\Nation	2024-02-23_fdd37eba78945d743b2d99c05771c878_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2536	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 4092 wrote to memory of 2536	4092	2024-02-23_fdd37eba78945d743b2d99c05771c878_cryptolocker.exe	86
PID 4092 wrote to memory of 2536	4092	2024-02-23_fdd37eba78945d743b2d99c05771c878_cryptolocker.exe	86
PID 4092 wrote to memory of 2536	4092	2024-02-23_fdd37eba78945d743b2d99c05771c878_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-02-23_fdd37eba78945d743b2d99c05771c878_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_fdd37eba78945d743b2d99c05771c878_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4092
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2536

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
38KB

MD5
6fc244d59795d60677deb2dc98d90903

SHA1
a1230c768d43f56ac24eda04c9d6a4e56d497ce0

SHA256
c31661d5fcfefda9c74131abfe741890541ad92061ed15abc951fda0e936c976

SHA512
81527bf32e6d1db11c89ba944d368f8ee2e16cba845709791cba835cb36a2b8986a532c251012f8ea22038d8030a5f7ec525272b879cf144a8a428dcd161c12b

Download Submit
memory/2536-21-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2536-19-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/4092-0-0x0000000000490000-0x0000000000493000-memory.dmp

Filesize
12KB

Download
memory/4092-1-0x0000000000680000-0x0000000000686000-memory.dmp

Filesize
24KB

Download
memory/4092-2-0x0000000000680000-0x0000000000686000-memory.dmp

Filesize
24KB

Download
memory/4092-3-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4092-17-0x0000000000490000-0x0000000000493000-memory.dmp

Filesize
12KB

Download