stealc | b2aa1408b77d5272d0e9f7250e196124fd2cc5d86f8ef90abe0ec37ea27b41af

Analysis

max time kernel
144s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
11/10/2023, 14:24

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General

Target

file.exe
Size

308KB
MD5

07e1135280b0856cbf74d013e5aed90e
SHA1

3a9fbc8d91356e610f02ef5998df998f972a70db
SHA256

b2aa1408b77d5272d0e9f7250e196124fd2cc5d86f8ef90abe0ec37ea27b41af
SHA512

fdc735c387affcd3a2ecb3d1d58fc43dfd7cfcb9ae25928a279737bf73a5de5d678bc411843a3cd65608bcacebd166321360511d961ec25e18e727b52a9e28f4
SSDEEP

3072:SDdLb8Lyom0PXxdwglElsoFBq7JvlbCKQw0G9jSa3p10IUxwVapbOU:6Lb8LdmkhdwgKPiVvJQw0GlSI2tpK

Score

10^/10

stealc discovery stealer

Malware Config

Extracted

Family

stealc

http://bryanzachary.top

Attributes

url_path
/e9c345fc99a4e67e.php

rc4.plain

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

pid	pid_target	Process	procid_target
4660	4244	WerFault.exe	84

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	file.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4244	file.exe
4244	file.exe

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4244
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4244 -s 1292
  2⤵
  - Program crash
  PID:4660

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4244 -ip 4244
1⤵
PID:2520

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/4244-1-0x00000000026B0000-0x00000000027B0000-memory.dmp

Filesize
1024KB

Download
memory/4244-2-0x0000000002690000-0x00000000026AB000-memory.dmp

Filesize
108KB

Download
memory/4244-3-0x0000000000400000-0x000000000259F000-memory.dmp

Filesize
33.6MB

Download
memory/4244-4-0x00000000026B0000-0x00000000027B0000-memory.dmp

Filesize
1024KB

Download
memory/4244-5-0x0000000000400000-0x000000000259F000-memory.dmp

Filesize
33.6MB

Download
memory/4244-6-0x0000000002690000-0x00000000026AB000-memory.dmp

Filesize
108KB

Download