7bd209df7e7ddd6daf9efd141de761e0538d0a059c7b97d7d5e961f3188e32b2

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
22/02/2024, 16:30

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General

Target

2024-02-22_4816b17ddc80cb6be0d76438c57f6194_cryptolocker.exe
Size

75KB
MD5

4816b17ddc80cb6be0d76438c57f6194
SHA1

f910c11da30e5e0e740e3b1046313e3e8dfec667
SHA256

7bd209df7e7ddd6daf9efd141de761e0538d0a059c7b97d7d5e961f3188e32b2
SHA512

2c7c749fd851f49d1d68eba73996bf2dfc55095f0eaf9de9622aa69c073914b201eac4609fe710197f58a15cd0b5fbe7d01511c0164df5fdf904ffb3b4b9b1a2
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3Ku3b:ZVxkGOtEvwDpjcav

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023209-13.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-1-5-21-1414748551-1520717498-2956787782-1000\Control Panel\International\Geo\Nation	2024-02-22_4816b17ddc80cb6be0d76438c57f6194_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3764	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 3704 wrote to memory of 3764	3704	2024-02-22_4816b17ddc80cb6be0d76438c57f6194_cryptolocker.exe	88
PID 3704 wrote to memory of 3764	3704	2024-02-22_4816b17ddc80cb6be0d76438c57f6194_cryptolocker.exe	88
PID 3704 wrote to memory of 3764	3704	2024-02-22_4816b17ddc80cb6be0d76438c57f6194_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-02-22_4816b17ddc80cb6be0d76438c57f6194_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_4816b17ddc80cb6be0d76438c57f6194_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3704
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3764

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
7c9b2dd69af763ce4d7e83e67fe1e391

SHA1
0cee08668b9343eb276883898edd5bdc45193c43

SHA256
deb80525a226e5cb80896b4799432058bdf1bcdbe9d69e5a9e7479de16d95acb

SHA512
0001a61fc7df84665d7b5c30a96a452c64eaa92948cc48b2ecbcd3c5a3edd22e7589cd2078e56d3a4a48c3bfc7b08ba59b01d41ddca5a975d08c7b84bdbcddd8

Download Submit
memory/3704-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/3704-1-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/3704-2-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/3704-3-0x0000000000540000-0x0000000000546000-memory.dmp

Filesize
24KB

Download
memory/3704-18-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/3764-17-0x0000000000450000-0x0000000000453000-memory.dmp

Filesize
12KB

Download
memory/3764-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3764-21-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download