stealc | e645023ff456442664c5b14a8c752bf67a731a300a18358bd31362f79bab1bb5

General

Target

e645023ff456442664c5b14a8c752bf67a731a300a18358bd31362f79bab1bb5.exe
Size

1.7MB
MD5

a2ec3d964eca6233ad8d42ef1a09b9d4
SHA1

b99c1f510c3cb02f6fabb77ca1f9bacf6580417f
SHA256

e645023ff456442664c5b14a8c752bf67a731a300a18358bd31362f79bab1bb5
SHA512

d9aea38501423c26a6ea7c227abd0bed1cb7bb7901a1e9619758e997b4c233d1334de8021f070d66b8435bb3a68cda3056212fc22df118c1d166419ad781a837
SSDEEP

49152:Zsf5qDBi7QT33ed1MO7So7qw0tse15OszK07:ZsxIvj61MVo7qw0yebK07

Score

10^/10

stealc brat defense_evasion discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

brat

C2

http://185.215.113.206

Attributes

url_path
/c4becf79229cb002.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Stealc family
stealc

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	e645023ff456442664c5b14a8c752bf67a731a300a18358bd31362f79bab1bb5.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	e645023ff456442664c5b14a8c752bf67a731a300a18358bd31362f79bab1bb5.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	e645023ff456442664c5b14a8c752bf67a731a300a18358bd31362f79bab1bb5.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Wine	e645023ff456442664c5b14a8c752bf67a731a300a18358bd31362f79bab1bb5.exe

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

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2528	e645023ff456442664c5b14a8c752bf67a731a300a18358bd31362f79bab1bb5.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2704	2528	WerFault.exe	29

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e645023ff456442664c5b14a8c752bf67a731a300a18358bd31362f79bab1bb5.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	e645023ff456442664c5b14a8c752bf67a731a300a18358bd31362f79bab1bb5.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	e645023ff456442664c5b14a8c752bf67a731a300a18358bd31362f79bab1bb5.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2528	e645023ff456442664c5b14a8c752bf67a731a300a18358bd31362f79bab1bb5.exe
2528	e645023ff456442664c5b14a8c752bf67a731a300a18358bd31362f79bab1bb5.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2528 wrote to memory of 2704	2528	e645023ff456442664c5b14a8c752bf67a731a300a18358bd31362f79bab1bb5.exe	32
PID 2528 wrote to memory of 2704	2528	e645023ff456442664c5b14a8c752bf67a731a300a18358bd31362f79bab1bb5.exe	32
PID 2528 wrote to memory of 2704	2528	e645023ff456442664c5b14a8c752bf67a731a300a18358bd31362f79bab1bb5.exe	32
PID 2528 wrote to memory of 2704	2528	e645023ff456442664c5b14a8c752bf67a731a300a18358bd31362f79bab1bb5.exe	32

C:\Users\Admin\AppData\Local\Temp\e645023ff456442664c5b14a8c752bf67a731a300a18358bd31362f79bab1bb5.exe
"C:\Users\Admin\AppData\Local\Temp\e645023ff456442664c5b14a8c752bf67a731a300a18358bd31362f79bab1bb5.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2528
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2528 -s 932
  2⤵
  - Program crash
  PID:2704

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

5

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2528-0-0x0000000000CE0000-0x0000000001373000-memory.dmp

Filesize
6.6MB

Download
memory/2528-1-0x0000000077B90000-0x0000000077B92000-memory.dmp

Filesize
8KB

Download
memory/2528-2-0x0000000000CE1000-0x0000000000CF8000-memory.dmp

Filesize
92KB

Download
memory/2528-3-0x0000000000CE0000-0x0000000001373000-memory.dmp

Filesize
6.6MB

Download
memory/2528-4-0x0000000000CE0000-0x0000000001373000-memory.dmp

Filesize
6.6MB

Download
memory/2528-5-0x0000000000CE0000-0x0000000001373000-memory.dmp

Filesize
6.6MB

Download
memory/2528-6-0x0000000000CE0000-0x0000000001373000-memory.dmp

Filesize
6.6MB

Download
memory/2528-7-0x0000000000CE0000-0x0000000001373000-memory.dmp

Filesize
6.6MB

Download
memory/2528-8-0x0000000000CE0000-0x0000000001373000-memory.dmp

Filesize
6.6MB

Download
memory/2528-9-0x0000000000CE0000-0x0000000001373000-memory.dmp

Filesize
6.6MB

Download
memory/2528-10-0x0000000000CE0000-0x0000000001373000-memory.dmp

Filesize
6.6MB

Download
memory/2528-11-0x0000000000CE0000-0x0000000001373000-memory.dmp

Filesize
6.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads