c0444fa3ce3a785d1d69254d1731b988dbd35f779c33c4b3dd4b321a1ed0c062

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
08/03/2024, 12:37

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General

Target

2024-03-08_4e8ba14d8bf79842c71400c0f7b4b11c_cryptolocker.exe
Size

54KB
MD5

4e8ba14d8bf79842c71400c0f7b4b11c
SHA1

ed6f55a1fb30abba9467fcafd6f32690f7b09522
SHA256

c0444fa3ce3a785d1d69254d1731b988dbd35f779c33c4b3dd4b321a1ed0c062
SHA512

3adf90f928032980cb9639aed0f9a7047a5dd1607d00cd065880b4ae92ea0241534120fec978ee09d5ef1d599cd98bd91597b1e8898e4a31b4ee37fda6978787
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4hdCW1nw71TkhsiPn1YFv6dy/wXps:vj+jsMQMOtEvwDpj5HH1nw73KOFSO

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e9a0-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e9a0-12.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	2024-03-08_4e8ba14d8bf79842c71400c0f7b4b11c_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2744	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 1284 wrote to memory of 2744	1284	2024-03-08_4e8ba14d8bf79842c71400c0f7b4b11c_cryptolocker.exe	89
PID 1284 wrote to memory of 2744	1284	2024-03-08_4e8ba14d8bf79842c71400c0f7b4b11c_cryptolocker.exe	89
PID 1284 wrote to memory of 2744	1284	2024-03-08_4e8ba14d8bf79842c71400c0f7b4b11c_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-08_4e8ba14d8bf79842c71400c0f7b4b11c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_4e8ba14d8bf79842c71400c0f7b4b11c_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1284
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2744

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
54KB

MD5
f60326e53d137531ef2919c7121a7cf8

SHA1
03721488d976547c92ad04a4e871b10033bd199f

SHA256
f934bf5c6e606b5b89afc336423bc6b9416e13fd91de709ff801a88df0240d67

SHA512
22877cdc9ac679f0aa5399d552ccebbbacc3b68a1c09b9f15cc892fd10c1941ac630e2bf4e3e726d7fbbae4c445489ea6bbde13731cffe402f582c6298effc18

Download Submit
memory/1284-0-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/1284-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/1284-2-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/2744-17-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/2744-21-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download