6a80ba5ca3b2e935c1cd658cbee453e243bee49bf37f5ac55b2ced96c39e1267

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
17/04/2024, 08:27

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General

Target

2024-04-17_41941e02fc77e43456eaf72748d861e1_cryptolocker.exe
Size

75KB
MD5

41941e02fc77e43456eaf72748d861e1
SHA1

7e452001445ce90b74e8e8843490920e42f46606
SHA256

6a80ba5ca3b2e935c1cd658cbee453e243bee49bf37f5ac55b2ced96c39e1267
SHA512

124748560093f1461cbbd72b148d48d327ead031224e73b445cfe9c8551e0ec347d1c5cefe0f399f993d04cfa1f83c40d11f610bc8e8fc263d05d4561bb7bf26
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3Ku3o:ZVxkGOtEvwDpjcas

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000233e3-13.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-1-5-21-4092317236-2027488869-1227795436-1000\Control Panel\International\Geo\Nation	2024-04-17_41941e02fc77e43456eaf72748d861e1_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2892	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 644 wrote to memory of 2892	644	2024-04-17_41941e02fc77e43456eaf72748d861e1_cryptolocker.exe	84
PID 644 wrote to memory of 2892	644	2024-04-17_41941e02fc77e43456eaf72748d861e1_cryptolocker.exe	84
PID 644 wrote to memory of 2892	644	2024-04-17_41941e02fc77e43456eaf72748d861e1_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-04-17_41941e02fc77e43456eaf72748d861e1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-17_41941e02fc77e43456eaf72748d861e1_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:644
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2892

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
75KB

MD5
cf697a499984585707618ecd8942f469

SHA1
dc035cc5ac7529ed1842dc5e99c4251184f52195

SHA256
181ffc3605e3e3248705abc8bdb0b04f9dc804e4105d2bba859a2b506d8ca34c

SHA512
9deb7fdfbf48aaff1c48c107dd073755a5bd718e57edb3032c035c2dbc0cc8e8091adf3a18b2011ec26c7127c8e82e9d2bafb6ea800160a0136c0e2e7434035e

Download Submit
memory/644-0-0x00000000004F0000-0x00000000004F3000-memory.dmp

Filesize
12KB

Download
memory/644-1-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/644-2-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/644-3-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/644-18-0x00000000004F0000-0x00000000004F3000-memory.dmp

Filesize
12KB

Download
memory/2892-20-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/2892-19-0x00000000004F0000-0x00000000004F3000-memory.dmp

Filesize
12KB

Download
memory/2892-21-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download