ba4d80173992c015f6f76f844c7acdeb4616825cdf71151f290f79e19ef6fda3

Analysis

max time kernel
144s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
22-02-2024 09:46

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General

Target

2024-02-22_69f59059cd81e87b0c4e847deb1f08f1_cryptolocker.exe
Size

40KB
MD5

69f59059cd81e87b0c4e847deb1f08f1
SHA1

6f9481c4b97c177f769f9b7f77b4e5e8775a660f
SHA256

ba4d80173992c015f6f76f844c7acdeb4616825cdf71151f290f79e19ef6fda3
SHA512

50e89aa268ba90fce331426c86ae14e0dfb04e4ec5424d441d5d6c87c3f1a7f540e44ec61c11d5c8ce6ae54ff284fc48c15f7a365d534bb394e3a6eb1e5b15e4
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLenQL3bTbQCC:ZzFbxmLPWQMOtEvwDpjLeU3kCC

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023131-13.dat	CryptoLocker_rule2

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-1-5-21-3844919115-497234255-166257750-1000\Control Panel\International\Geo\Nation	2024-02-22_69f59059cd81e87b0c4e847deb1f08f1_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
528	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 1944 wrote to memory of 528	1944	2024-02-22_69f59059cd81e87b0c4e847deb1f08f1_cryptolocker.exe	86
PID 1944 wrote to memory of 528	1944	2024-02-22_69f59059cd81e87b0c4e847deb1f08f1_cryptolocker.exe	86
PID 1944 wrote to memory of 528	1944	2024-02-22_69f59059cd81e87b0c4e847deb1f08f1_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-02-22_69f59059cd81e87b0c4e847deb1f08f1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_69f59059cd81e87b0c4e847deb1f08f1_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1944
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:528

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
41KB

MD5
4770af2ba630e2cfa6515d3a3e1997e6

SHA1
f45e7962e9cc2a1eb7453111d7dd9aee64b80c1a

SHA256
3ea05263b7673be175d84cfc69af79089bbb9e85ddb81be7d6efad77195854dd

SHA512
903c729c34a335bdb97d73d0c05ad7b5eec78f87700e8455c89526805c47e1de3fa47ec4e3f36fbb5de6f864d50860c6a792aa9a1f56ca9f4eeb479e491ca72c

Download Submit
memory/528-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/528-19-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/528-21-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/1944-0-0x00000000006B0000-0x00000000006B3000-memory.dmp

Filesize
12KB

Download
memory/1944-1-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/1944-2-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/1944-3-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/1944-20-0x00000000006B0000-0x00000000006B3000-memory.dmp

Filesize
12KB

Download