stealc | a0bbcafceb0164455f397ad28ffb2fa521c25d1eac81ca2c90428e4f2647bd62

Analysis

max time kernel
141s
max time network
131s
platform
windows10-1703_x64
resource
win10-20231020-en
resource tags

arch:x64arch:x86image:win10-20231020-enlocale:en-usos:windows10-1703-x64system
submitted
24/10/2023, 13:10

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General

Target

a0bbcafceb0164455f397ad28ffb2fa521c25d1eac81ca2c90428e4f2647bd62.exe
Size

2.0MB
MD5

baace728c4d5fb878ee87ae4219945b3
SHA1

9b0e0e7b6bb81c8e48c0787cab85f388d273e611
SHA256

a0bbcafceb0164455f397ad28ffb2fa521c25d1eac81ca2c90428e4f2647bd62
SHA512

63ff956c3ac2dea7a6e10fff92145e02058a7947fc782225e05861cc8a2322d04a5b63ba5495513e66343eb90864ce36774ad1197a53fd5e8f2b82868adf9c6e
SSDEEP

24576:AlBcaQa6wtGNOb3tyAY9AzmqIFqtxmWXH8:ATCwugyASotxmWX

Score

10^/10

stealc discovery stealer

Malware Config

Extracted

Family

stealc

http://tetromask.site

Attributes

url_path
/b5c586aec2e1004c.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 2 IoCs

pid	pid_target	Process	procid_target
2244	3920	WerFault.exe	70
2732	3920	WerFault.exe	70

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	a0bbcafceb0164455f397ad28ffb2fa521c25d1eac81ca2c90428e4f2647bd62.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	a0bbcafceb0164455f397ad28ffb2fa521c25d1eac81ca2c90428e4f2647bd62.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3920	a0bbcafceb0164455f397ad28ffb2fa521c25d1eac81ca2c90428e4f2647bd62.exe
3920	a0bbcafceb0164455f397ad28ffb2fa521c25d1eac81ca2c90428e4f2647bd62.exe

C:\Users\Admin\AppData\Local\Temp\a0bbcafceb0164455f397ad28ffb2fa521c25d1eac81ca2c90428e4f2647bd62.exe
"C:\Users\Admin\AppData\Local\Temp\a0bbcafceb0164455f397ad28ffb2fa521c25d1eac81ca2c90428e4f2647bd62.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:3920
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3920 -s 1400
  2⤵
  - Program crash
  PID:2244
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3920 -s 1392
  2⤵
  - Program crash
  PID:2732

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/3920-0-0x0000000002150000-0x0000000002151000-memory.dmp

Filesize
4KB

Download
memory/3920-1-0x0000000002850000-0x0000000002948000-memory.dmp

Filesize
992KB

Download
memory/3920-2-0x0000000010000000-0x000000001022D000-memory.dmp

Filesize
2.2MB

Download
memory/3920-3-0x0000000002150000-0x0000000002151000-memory.dmp

Filesize
4KB

Download
memory/3920-4-0x0000000010000000-0x0000000010206000-memory.dmp

Filesize
2.0MB

Download
memory/3920-5-0x0000000010000000-0x000000001022D000-memory.dmp

Filesize
2.2MB

Download