49cf115e70704f9ef196d8cefe0abdbf5a8cccdca67f94dea8e8248dc3a956bd

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
18-04-2024 07:32

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-04-18_35276060ce475af2bc07e610a3bdbf76_cryptolocker.exe
Size

81KB
MD5

35276060ce475af2bc07e610a3bdbf76
SHA1

e5beadb85541d8e08c06b01a774b41bfc7371cc7
SHA256

49cf115e70704f9ef196d8cefe0abdbf5a8cccdca67f94dea8e8248dc3a956bd
SHA512

b48a24fe54542408d6aaba4f9e9ce8d96678683ae4872b52f291b994fe6dd56e3ac490b5a5b13552216fbe07c015b9c7e8769ab633af350aee72a9ffce51f135
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfWafHNqV5:vCjsIOtEvwDpj5H9YvQd2m

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x001c00000001e97e-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x001c00000001e97e-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-1-5-21-259785868-298165991-4178590326-1000\Control Panel\International\Geo\Nation	2024-04-18_35276060ce475af2bc07e610a3bdbf76_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3776	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 816 wrote to memory of 3776	816	2024-04-18_35276060ce475af2bc07e610a3bdbf76_cryptolocker.exe	84
PID 816 wrote to memory of 3776	816	2024-04-18_35276060ce475af2bc07e610a3bdbf76_cryptolocker.exe	84
PID 816 wrote to memory of 3776	816	2024-04-18_35276060ce475af2bc07e610a3bdbf76_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-04-18_35276060ce475af2bc07e610a3bdbf76_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-18_35276060ce475af2bc07e610a3bdbf76_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:816
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3776

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
81KB

MD5
43bc0e636fa03e0d0d3542460aef68c4

SHA1
7c958a55378021843f0a4d20b75c92e5da06f947

SHA256
b751b395739abb7353c8325161a35e65e12e6dcbbc0a4d20d32ffedf46500f5e

SHA512
b468ff2d2642e896908c9e3b28f6e44eb62245ef5a73912d5d83ae960734ce5702f10495c8a795e8a78f4d82348a0818fd045bb2694cefc2f44716891eb40cb7

Download Submit
memory/816-0-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/816-1-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/816-2-0x00000000021A0000-0x00000000021A6000-memory.dmp

Filesize
24KB

Download
memory/3776-17-0x00000000007C0000-0x00000000007C6000-memory.dmp

Filesize
24KB

Download
memory/3776-18-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download