stealc | 56998c972948a8dc69e388158cdb4ad9fc38fbc05538e91295a130a34cfe69ca

General

Target

56998c972948a8dc69e388158cdb4ad9fc38fbc05538e91295a130a34cfe69ca.exe
Size

2.8MB
MD5

b25f2117faddee0012b548e795fa75de
SHA1

735cab6e4cf78ed64e1609e9ba06ed0d919afdc4
SHA256

56998c972948a8dc69e388158cdb4ad9fc38fbc05538e91295a130a34cfe69ca
SHA512

30e86652a3c4b4219887d1cec08406389f71992623e06de1a1e498468ef3552a2dd258c1e4e17eaba7b0672b16c6a48aec9e0835ac6b53d8651277950aa619a7
SSDEEP

49152:ayU3j44ia9HP01DR0hhL5U+aBCQgQrrJM485HF:ZU3U/QHP01DR0hXbaBCQgQfJMD

Score

10^/10

stealc stok discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

stok

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

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	56998c972948a8dc69e388158cdb4ad9fc38fbc05538e91295a130a34cfe69ca.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	56998c972948a8dc69e388158cdb4ad9fc38fbc05538e91295a130a34cfe69ca.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	56998c972948a8dc69e388158cdb4ad9fc38fbc05538e91295a130a34cfe69ca.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.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Wine	56998c972948a8dc69e388158cdb4ad9fc38fbc05538e91295a130a34cfe69ca.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
1840	56998c972948a8dc69e388158cdb4ad9fc38fbc05538e91295a130a34cfe69ca.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2736	1840	WerFault.exe	82

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	56998c972948a8dc69e388158cdb4ad9fc38fbc05538e91295a130a34cfe69ca.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	56998c972948a8dc69e388158cdb4ad9fc38fbc05538e91295a130a34cfe69ca.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	56998c972948a8dc69e388158cdb4ad9fc38fbc05538e91295a130a34cfe69ca.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1840	56998c972948a8dc69e388158cdb4ad9fc38fbc05538e91295a130a34cfe69ca.exe
1840	56998c972948a8dc69e388158cdb4ad9fc38fbc05538e91295a130a34cfe69ca.exe
1840	56998c972948a8dc69e388158cdb4ad9fc38fbc05538e91295a130a34cfe69ca.exe
1840	56998c972948a8dc69e388158cdb4ad9fc38fbc05538e91295a130a34cfe69ca.exe

C:\Users\Admin\AppData\Local\Temp\56998c972948a8dc69e388158cdb4ad9fc38fbc05538e91295a130a34cfe69ca.exe
"C:\Users\Admin\AppData\Local\Temp\56998c972948a8dc69e388158cdb4ad9fc38fbc05538e91295a130a34cfe69ca.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:1840
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1840 -s 1484
  2⤵
  - Program crash
  PID:2736

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1840 -ip 1840
1⤵
PID:2728

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/1840-0-0x0000000000710000-0x0000000000C0D000-memory.dmp

Filesize
5.0MB

Download
memory/1840-1-0x0000000077E54000-0x0000000077E56000-memory.dmp

Filesize
8KB

Download
memory/1840-2-0x0000000000711000-0x0000000000728000-memory.dmp

Filesize
92KB

Download
memory/1840-3-0x0000000000710000-0x0000000000C0D000-memory.dmp

Filesize
5.0MB

Download
memory/1840-4-0x0000000000710000-0x0000000000C0D000-memory.dmp

Filesize
5.0MB

Download
memory/1840-5-0x0000000000710000-0x0000000000C0D000-memory.dmp

Filesize
5.0MB

Download
memory/1840-6-0x0000000000710000-0x0000000000C0D000-memory.dmp

Filesize
5.0MB

Download
memory/1840-7-0x0000000000710000-0x0000000000C0D000-memory.dmp

Filesize
5.0MB

Download
memory/1840-8-0x0000000000710000-0x0000000000C0D000-memory.dmp

Filesize
5.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads