c7c230d3dd29da71f85c539b3348a3f136f25dac6abf2551187283edccf21e15

Analysis

max time kernel
129s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
27/03/2024, 04:07

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General

Target

2024-03-27_ba465a035b0f85e336873c4f777c4b5e_cryptolocker.exe
Size

50KB
MD5

ba465a035b0f85e336873c4f777c4b5e
SHA1

8d4a99dcbd877272e0788647f655f57b46c35606
SHA256

c7c230d3dd29da71f85c539b3348a3f136f25dac6abf2551187283edccf21e15
SHA512

789c5adce67c11268f4400717e83dfcaf504c5a7e63e2ffc0b8927292cdc53798a3ae35edaaf74ca6e72691e4a67c9b215d5439b9a92009989838d6cdd3342b0
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/Uth8igNrr42A7n0Fmy7gKt/:vj+jsMQMOtEvwDpj5HczerLO04y7t

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00080000000231fe-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x00080000000231fe-12.dat	CryptoLocker_set1

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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	2024-03-27_ba465a035b0f85e336873c4f777c4b5e_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4740	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 4960 wrote to memory of 4740	4960	2024-03-27_ba465a035b0f85e336873c4f777c4b5e_cryptolocker.exe	84
PID 4960 wrote to memory of 4740	4960	2024-03-27_ba465a035b0f85e336873c4f777c4b5e_cryptolocker.exe	84
PID 4960 wrote to memory of 4740	4960	2024-03-27_ba465a035b0f85e336873c4f777c4b5e_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-03-27_ba465a035b0f85e336873c4f777c4b5e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-27_ba465a035b0f85e336873c4f777c4b5e_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4960
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4740

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
50KB

MD5
e6d6243d4386847ec886c9c48968e656

SHA1
13e1da5efd83db1ab7384ee597cf45c9b321ca49

SHA256
08540c8bc86b6b47275a22148e2e9ae06d1a67073559c7b78a1a185ff32c8177

SHA512
cec49b1dd0d3d8824cc03b2c3e7360ca6d6759ed3bc73980605e21d12258b8f44d0155b2e56a1eebef540e9bb05a19da7cb826c4b738c21e6ce4b93055be4823

Download Submit
memory/4740-17-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/4740-23-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/4960-0-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/4960-1-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/4960-2-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download