2745e45469387d95eeb34dfef9586a32751e853754682badaedb076dc6593462

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
28/03/2024, 04:48

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General

Target

2024-03-28_9bb861a46e716cb8ba5f7ace9c969fed_cryptolocker.exe
Size

124KB
MD5

9bb861a46e716cb8ba5f7ace9c969fed
SHA1

ab00883328692f64dae1153095191503110228df
SHA256

2745e45469387d95eeb34dfef9586a32751e853754682badaedb076dc6593462
SHA512

364e9b96b987269daf9c2ab08d85510915b08d41273dc7fab938a5f0979001253037e0d748607fb6d79ebeda5fc2ccbf9cadc6cb2a9c5d1cdd80939ba3a7fe5f
SSDEEP

1536:gUj+AIMOtEvwDpjNbwQEIPlemUhYwkkxGBpJ:vCA9OtEvwDpjF

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000224f7-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000224f7-12.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-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	2024-03-28_9bb861a46e716cb8ba5f7ace9c969fed_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4208	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 1760 wrote to memory of 4208	1760	2024-03-28_9bb861a46e716cb8ba5f7ace9c969fed_cryptolocker.exe	88
PID 1760 wrote to memory of 4208	1760	2024-03-28_9bb861a46e716cb8ba5f7ace9c969fed_cryptolocker.exe	88
PID 1760 wrote to memory of 4208	1760	2024-03-28_9bb861a46e716cb8ba5f7ace9c969fed_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-28_9bb861a46e716cb8ba5f7ace9c969fed_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-28_9bb861a46e716cb8ba5f7ace9c969fed_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1760
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4208

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
125KB

MD5
b52973d84f836075e96558eb781457a6

SHA1
efcef6a6dc20bd3ba680c8c7696cde9fa01d37d6

SHA256
32bf1fa5019426b7451f86e6c92ef8b8ff05ab5f68d151da689b96e540831110

SHA512
8a7f7f9e95b23d3f094fe8beea9662c0c53d326c6483861b0cccc74b5157e30c2cb6b0ab5bac5f45be6c480a4484b20de527e9f8f86c439af6b24668dfda4b40

Download Submit
memory/1760-0-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/1760-1-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/1760-2-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/4208-17-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/4208-19-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download