eb8cd4f22df31e24393b2c7cf2977dfc8a46d4c2d01a936a04d8d2a81ae236ee

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
30/04/2024, 18:54

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General

Target

2024-04-30_aabd72afdb5922dc98c17902caa54a91_cryptolocker.exe
Size

47KB
MD5

aabd72afdb5922dc98c17902caa54a91
SHA1

42f1ebaa4a94e0a5205a969ca22bc10e340e38f4
SHA256

eb8cd4f22df31e24393b2c7cf2977dfc8a46d4c2d01a936a04d8d2a81ae236ee
SHA512

a1968732e93b69b69525c98b053bfbac2120630860b72e0204c52097a2c30a63e0be2f344e36e7bbaab5219e54fb1a6c48796f45f5f45ff7673013134a6cce4d
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/Uth8igNrr42A7n0FmB0nz:vj+jsMQMOtEvwDpj5HczerLO04BI

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023b3c-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023b3c-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-1-5-21-17203666-93769886-2545153620-1000\Control Panel\International\Geo\Nation	2024-04-30_aabd72afdb5922dc98c17902caa54a91_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
728	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 4028 wrote to memory of 728	4028	2024-04-30_aabd72afdb5922dc98c17902caa54a91_cryptolocker.exe	83
PID 4028 wrote to memory of 728	4028	2024-04-30_aabd72afdb5922dc98c17902caa54a91_cryptolocker.exe	83
PID 4028 wrote to memory of 728	4028	2024-04-30_aabd72afdb5922dc98c17902caa54a91_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-04-30_aabd72afdb5922dc98c17902caa54a91_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_aabd72afdb5922dc98c17902caa54a91_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4028
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:728

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
48KB

MD5
c81fcd7ab5b60fab3a3934365c98e507

SHA1
ca0f56adbbb6b7293bc7677bad3b82996c0b4639

SHA256
ba669e596763aafdfba9cb65166cb090650c024da600380f88503fb0b96faf60

SHA512
fe61343460709d257a9f5412fc6d5ab387092fa14acf502a17c2d5c22810bc7f952cd45423db43d432a874f2f494cae380b40018976318c06152ffaab1cd64ec

Download Submit
memory/728-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/728-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4028-0-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download
memory/4028-8-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download
memory/4028-1-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download