stealc | 31c7097c21baf60d131301217e0c91c92fdccf0aa3da9c30bb1adc4f89892bdc

Analysis

max time kernel
146s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20240426-en
resource tags

arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
submitted
28-04-2024 11:18

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General

Target

31c7097c21baf60d131301217e0c91c92fdccf0aa3da9c30bb1adc4f89892bdc.exe
Size

307KB
MD5

4c6a7cec00bcfd3ac8568ab6d1b07c3d
SHA1

8ce47c4e0be73ac554cae1e7d2f90fa0119f5243
SHA256

31c7097c21baf60d131301217e0c91c92fdccf0aa3da9c30bb1adc4f89892bdc
SHA512

e260e572b27ba715a26616f814575c194a21f43d44c355cfa559f19b876785aebabbf32bcf1fae08c847a115fcacd2a7b5ed527b480e6951588b65cb2dd0aa6c
SSDEEP

6144:Qp8OaLzaFlWdxp4+Ve6Rk/XCBXiAB4rECl1YON:W8OEaF4zpx9RuU5oRN

Score

10^/10

stealc discovery stealer

Malware Config

Extracted

Family

stealc

http://185.172.128.62

Attributes

url_path
/902e53a07830e030.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3564 4604 WerFault.exe 31c7097c21baf60d131301217e0c91c92fdccf0aa3da9c30bb1adc4f89892bdc.exe

pid	pid_target	process	target process
3564	4604	WerFault.exe	31c7097c21baf60d131301217e0c91c92fdccf0aa3da9c30bb1adc4f89892bdc.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

31c7097c21baf60d131301217e0c91c92fdccf0aa3da9c30bb1adc4f89892bdc.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	31c7097c21baf60d131301217e0c91c92fdccf0aa3da9c30bb1adc4f89892bdc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	31c7097c21baf60d131301217e0c91c92fdccf0aa3da9c30bb1adc4f89892bdc.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

31c7097c21baf60d131301217e0c91c92fdccf0aa3da9c30bb1adc4f89892bdc.exe

pid	process
4604	31c7097c21baf60d131301217e0c91c92fdccf0aa3da9c30bb1adc4f89892bdc.exe
4604	31c7097c21baf60d131301217e0c91c92fdccf0aa3da9c30bb1adc4f89892bdc.exe

C:\Users\Admin\AppData\Local\Temp\31c7097c21baf60d131301217e0c91c92fdccf0aa3da9c30bb1adc4f89892bdc.exe
"C:\Users\Admin\AppData\Local\Temp\31c7097c21baf60d131301217e0c91c92fdccf0aa3da9c30bb1adc4f89892bdc.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4604

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4604 -s 1376
2⤵
- Program crash
PID:3564

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4604 -ip 4604
1⤵
PID:4548

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

memory/4604-1-0x0000000001C60000-0x0000000001D60000-memory.dmp

Filesize
1024KB

Download
memory/4604-2-0x0000000003600000-0x0000000003627000-memory.dmp

Filesize
156KB

Download
memory/4604-3-0x0000000000400000-0x0000000001A18000-memory.dmp

Filesize
22.1MB

Download
memory/4604-4-0x0000000000400000-0x0000000001A18000-memory.dmp

Filesize
22.1MB

Download
memory/4604-5-0x0000000001C60000-0x0000000001D60000-memory.dmp

Filesize
1024KB

Download
memory/4604-6-0x0000000000400000-0x0000000001A18000-memory.dmp

Filesize
22.1MB

Download
memory/4604-9-0x0000000000400000-0x0000000001A18000-memory.dmp

Filesize
22.1MB

Download
memory/4604-11-0x0000000000400000-0x0000000001A18000-memory.dmp

Filesize
22.1MB

Download
memory/4604-13-0x0000000000400000-0x0000000001A18000-memory.dmp

Filesize
22.1MB

Download