413b46e81a8e4cd9756040f91dfe776c0209e65f2bb50f4b8b965bdb21aa41e1

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
10-03-2024 06:36

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General

Target

2024-03-10_95503f999aff000523554f0714c92188_cryptolocker.exe
Size

126KB
MD5

95503f999aff000523554f0714c92188
SHA1

0a65a3301782a596466eafdc52032daea6c74238
SHA256

413b46e81a8e4cd9756040f91dfe776c0209e65f2bb50f4b8b965bdb21aa41e1
SHA512

3699c15ef846ee8cf296646f04ed1b8251f2e6554e9b696acd8c32d44ae531059c6450d26a88549f55facffea38b5975ee8096fe0a1a1a4f702b5f7e07a1c1e6
SSDEEP

1536:gUj+AIMOtEvwDpjNbwQEIPlemUhYwkkxGBpVB:vCA9OtEvwDpjX

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	2024-03-10_95503f999aff000523554f0714c92188_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1948	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 5076 wrote to memory of 1948	5076	2024-03-10_95503f999aff000523554f0714c92188_cryptolocker.exe	91
PID 5076 wrote to memory of 1948	5076	2024-03-10_95503f999aff000523554f0714c92188_cryptolocker.exe	91
PID 5076 wrote to memory of 1948	5076	2024-03-10_95503f999aff000523554f0714c92188_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-03-10_95503f999aff000523554f0714c92188_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-10_95503f999aff000523554f0714c92188_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5076
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1948

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
126KB

MD5
61cc87ed930a659dd8ae4ae005f2c101

SHA1
a8a8ef02bdf93793a2d8f6ce950719de2586ae22

SHA256
f1de31a3d9985337c6172b5267a26da5980286bf684e0c68ec07c3aafdcd79cb

SHA512
686082981aec4a2cc2631142a699f2acbec71a45392b0bf00f42c2d93d674c9503a76ae5b5df8172725fec8e37186b8b7abc03fb0a43613742834607352d5a1f

Download Submit
memory/1948-17-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/1948-23-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/5076-0-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/5076-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/5076-2-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download