stealc | bc8a65fc255d4b89a124517ad55104d686ce09d325c1e08a51672c43ee3eeffd

General

Target

bc8a65fc255d4b89a124517ad55104d686ce09d325c1e08a51672c43ee3eeffd.exe
Size

1.7MB
MD5

c2554eccab67f1dba93e896d62893b79
SHA1

5689ff07f3a4811e3148a09f3fd961bfe2fdc879
SHA256

bc8a65fc255d4b89a124517ad55104d686ce09d325c1e08a51672c43ee3eeffd
SHA512

7c88ebb32b958805164e14a6d96e4d38477dde6e80b7a8f2c65fe8327df3e2478c520e543f2c66807fcf3e38c5c147bb1d6ddbe9e0c5fe1142197db02c38b16b
SSDEEP

24576:GmbWeAyGaoEa2OdIr+l7ATw07HWAj7dutXhOoYbZkshNX26awvvZ0aDKNhG6w:GQTAyGJqgUTlx7kNsbHm6Hy/f

Score

10^/10

stealc reno defense_evasion discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

reno

C2

http://185.215.113.115

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__	bc8a65fc255d4b89a124517ad55104d686ce09d325c1e08a51672c43ee3eeffd.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	bc8a65fc255d4b89a124517ad55104d686ce09d325c1e08a51672c43ee3eeffd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	bc8a65fc255d4b89a124517ad55104d686ce09d325c1e08a51672c43ee3eeffd.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-1-5-21-1170604239-850860757-3112005715-1000\Software\Wine	bc8a65fc255d4b89a124517ad55104d686ce09d325c1e08a51672c43ee3eeffd.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
2684	bc8a65fc255d4b89a124517ad55104d686ce09d325c1e08a51672c43ee3eeffd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3184	2684	WerFault.exe	85

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	bc8a65fc255d4b89a124517ad55104d686ce09d325c1e08a51672c43ee3eeffd.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	bc8a65fc255d4b89a124517ad55104d686ce09d325c1e08a51672c43ee3eeffd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	bc8a65fc255d4b89a124517ad55104d686ce09d325c1e08a51672c43ee3eeffd.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2684	bc8a65fc255d4b89a124517ad55104d686ce09d325c1e08a51672c43ee3eeffd.exe
2684	bc8a65fc255d4b89a124517ad55104d686ce09d325c1e08a51672c43ee3eeffd.exe
2684	bc8a65fc255d4b89a124517ad55104d686ce09d325c1e08a51672c43ee3eeffd.exe
2684	bc8a65fc255d4b89a124517ad55104d686ce09d325c1e08a51672c43ee3eeffd.exe

C:\Users\Admin\AppData\Local\Temp\bc8a65fc255d4b89a124517ad55104d686ce09d325c1e08a51672c43ee3eeffd.exe
"C:\Users\Admin\AppData\Local\Temp\bc8a65fc255d4b89a124517ad55104d686ce09d325c1e08a51672c43ee3eeffd.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
PID:2684
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2684 -s 1488
  2⤵
  - Program crash
  PID:3184

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2684 -ip 2684
1⤵
PID:400

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/2684-0-0x0000000000530000-0x0000000000BC0000-memory.dmp

Filesize
6.6MB

Download
memory/2684-1-0x00000000773A4000-0x00000000773A6000-memory.dmp

Filesize
8KB

Download
memory/2684-2-0x0000000000531000-0x0000000000548000-memory.dmp

Filesize
92KB

Download
memory/2684-3-0x0000000000530000-0x0000000000BC0000-memory.dmp

Filesize
6.6MB

Download
memory/2684-4-0x0000000000530000-0x0000000000BC0000-memory.dmp

Filesize
6.6MB

Download
memory/2684-5-0x0000000000530000-0x0000000000BC0000-memory.dmp

Filesize
6.6MB

Download
memory/2684-6-0x0000000000530000-0x0000000000BC0000-memory.dmp

Filesize
6.6MB

Download
memory/2684-7-0x0000000000530000-0x0000000000BC0000-memory.dmp

Filesize
6.6MB

Download
memory/2684-8-0x0000000000530000-0x0000000000BC0000-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