stealc | a56bda4456ada1636e19f6616fb425e640f7f0bff3baad19f363532d24d9eeba

General

Target

a56bda4456ada1636e19f6616fb425e640f7f0bff3baad19f363532d24d9eeba.exe
Size

1.7MB
MD5

50a9cabaa8d682b50c0efda393907729
SHA1

1c53a11b2ef8c0ca30f861705ffd3598fd5db88f
SHA256

a56bda4456ada1636e19f6616fb425e640f7f0bff3baad19f363532d24d9eeba
SHA512

e4c56b120a99d28a2b5f5ac1eec97e23f32d500807cf80f0cb17fac95017bc3c6c1e82f280123ff71769e898e2541791ea4071368bfae4f354a230f3bfcc1c2e
SSDEEP

49152:mq3H3/XDp0u8B+LCcXiKYMMHkg8vw/OK4XMmbVwFGqdtG:L3/XD0YyKYMMHwwAXPiDG

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__	a56bda4456ada1636e19f6616fb425e640f7f0bff3baad19f363532d24d9eeba.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	a56bda4456ada1636e19f6616fb425e640f7f0bff3baad19f363532d24d9eeba.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	a56bda4456ada1636e19f6616fb425e640f7f0bff3baad19f363532d24d9eeba.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-1-5-21-22591836-1183090055-1220658180-1000\Software\Wine	a56bda4456ada1636e19f6616fb425e640f7f0bff3baad19f363532d24d9eeba.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
1272	a56bda4456ada1636e19f6616fb425e640f7f0bff3baad19f363532d24d9eeba.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2012	1272	WerFault.exe	83

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	a56bda4456ada1636e19f6616fb425e640f7f0bff3baad19f363532d24d9eeba.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	a56bda4456ada1636e19f6616fb425e640f7f0bff3baad19f363532d24d9eeba.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	a56bda4456ada1636e19f6616fb425e640f7f0bff3baad19f363532d24d9eeba.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1272	a56bda4456ada1636e19f6616fb425e640f7f0bff3baad19f363532d24d9eeba.exe
1272	a56bda4456ada1636e19f6616fb425e640f7f0bff3baad19f363532d24d9eeba.exe
1272	a56bda4456ada1636e19f6616fb425e640f7f0bff3baad19f363532d24d9eeba.exe
1272	a56bda4456ada1636e19f6616fb425e640f7f0bff3baad19f363532d24d9eeba.exe

C:\Users\Admin\AppData\Local\Temp\a56bda4456ada1636e19f6616fb425e640f7f0bff3baad19f363532d24d9eeba.exe
"C:\Users\Admin\AppData\Local\Temp\a56bda4456ada1636e19f6616fb425e640f7f0bff3baad19f363532d24d9eeba.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:1272
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1272 -s 1512
  2⤵
  - Program crash
  PID:2012

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 1272 -ip 1272
1⤵
PID:2560

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/1272-0-0x00000000006F0000-0x0000000000D85000-memory.dmp

Filesize
6.6MB

Download
memory/1272-1-0x0000000077B14000-0x0000000077B16000-memory.dmp

Filesize
8KB

Download
memory/1272-2-0x00000000006F1000-0x0000000000708000-memory.dmp

Filesize
92KB

Download
memory/1272-3-0x00000000006F0000-0x0000000000D85000-memory.dmp

Filesize
6.6MB

Download
memory/1272-4-0x00000000006F0000-0x0000000000D85000-memory.dmp

Filesize
6.6MB

Download
memory/1272-5-0x00000000006F0000-0x0000000000D85000-memory.dmp

Filesize
6.6MB

Download
memory/1272-6-0x00000000006F0000-0x0000000000D85000-memory.dmp

Filesize
6.6MB

Download
memory/1272-7-0x00000000006F0000-0x0000000000D85000-memory.dmp

Filesize
6.6MB

Download
memory/1272-8-0x00000000006F0000-0x0000000000D85000-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