stealc | 2dd8fcd44717498ad0012a0d3d14741f3cc5a5e91d445706c4db0e2d6290e520

General

Target

2dd8fcd44717498ad0012a0d3d14741f3cc5a5e91d445706c4db0e2d6290e520.exe
Size

1.7MB
MD5

2df287576896c4bcf8a47308a90e1993
SHA1

be99b43722f1f06c4afe63fee439cc1c55aa9de5
SHA256

2dd8fcd44717498ad0012a0d3d14741f3cc5a5e91d445706c4db0e2d6290e520
SHA512

d8e289ca1f6b0233bb2002fe0bef3e4d5d60b9b0077a0b45bcdc4ce6ca0a6d13478de79d6a9f3ce4fef1b67228f4384ee0cdb028ff5527edab00e1935722ef04
SSDEEP

24576:HiH6aL55HAQEDt9/QL//6fx9GKb2oH+epxZKm/AMMa0Pgg2qGYIcHVuSFC4G:HiH6aL5trXyGK6u+Cgm/ANaFNeHVpER

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__	2dd8fcd44717498ad0012a0d3d14741f3cc5a5e91d445706c4db0e2d6290e520.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\VideoBiosVersion	2dd8fcd44717498ad0012a0d3d14741f3cc5a5e91d445706c4db0e2d6290e520.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	2dd8fcd44717498ad0012a0d3d14741f3cc5a5e91d445706c4db0e2d6290e520.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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Wine	2dd8fcd44717498ad0012a0d3d14741f3cc5a5e91d445706c4db0e2d6290e520.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
1552	2dd8fcd44717498ad0012a0d3d14741f3cc5a5e91d445706c4db0e2d6290e520.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2740	1552	WerFault.exe	30

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	2dd8fcd44717498ad0012a0d3d14741f3cc5a5e91d445706c4db0e2d6290e520.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	2dd8fcd44717498ad0012a0d3d14741f3cc5a5e91d445706c4db0e2d6290e520.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2dd8fcd44717498ad0012a0d3d14741f3cc5a5e91d445706c4db0e2d6290e520.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1552	2dd8fcd44717498ad0012a0d3d14741f3cc5a5e91d445706c4db0e2d6290e520.exe
1552	2dd8fcd44717498ad0012a0d3d14741f3cc5a5e91d445706c4db0e2d6290e520.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1552 wrote to memory of 2740	1552	2dd8fcd44717498ad0012a0d3d14741f3cc5a5e91d445706c4db0e2d6290e520.exe	32
PID 1552 wrote to memory of 2740	1552	2dd8fcd44717498ad0012a0d3d14741f3cc5a5e91d445706c4db0e2d6290e520.exe	32
PID 1552 wrote to memory of 2740	1552	2dd8fcd44717498ad0012a0d3d14741f3cc5a5e91d445706c4db0e2d6290e520.exe	32
PID 1552 wrote to memory of 2740	1552	2dd8fcd44717498ad0012a0d3d14741f3cc5a5e91d445706c4db0e2d6290e520.exe	32

C:\Users\Admin\AppData\Local\Temp\2dd8fcd44717498ad0012a0d3d14741f3cc5a5e91d445706c4db0e2d6290e520.exe
"C:\Users\Admin\AppData\Local\Temp\2dd8fcd44717498ad0012a0d3d14741f3cc5a5e91d445706c4db0e2d6290e520.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:1552
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1552 -s 928
  2⤵
  - Program crash
  PID:2740

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/1552-0-0x0000000000B60000-0x00000000011EC000-memory.dmp

Filesize
6.5MB

Download
memory/1552-1-0x0000000077770000-0x0000000077772000-memory.dmp

Filesize
8KB

Download
memory/1552-2-0x0000000000B61000-0x0000000000B78000-memory.dmp

Filesize
92KB

Download
memory/1552-3-0x0000000000B60000-0x00000000011EC000-memory.dmp

Filesize
6.5MB

Download
memory/1552-4-0x0000000000B60000-0x00000000011EC000-memory.dmp

Filesize
6.5MB

Download
memory/1552-5-0x0000000000B60000-0x00000000011EC000-memory.dmp

Filesize
6.5MB

Download
memory/1552-6-0x0000000000B60000-0x00000000011EC000-memory.dmp

Filesize
6.5MB

Download
memory/1552-7-0x0000000000B60000-0x00000000011EC000-memory.dmp

Filesize
6.5MB

Download
memory/1552-8-0x0000000000B60000-0x00000000011EC000-memory.dmp

Filesize
6.5MB

Download
memory/1552-9-0x0000000000B60000-0x00000000011EC000-memory.dmp

Filesize
6.5MB

Download
memory/1552-10-0x0000000000B60000-0x00000000011EC000-memory.dmp

Filesize
6.5MB

Download
memory/1552-11-0x0000000000B60000-0x00000000011EC000-memory.dmp

Filesize
6.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads