stealc | 627282708d27b267d9d3cbee3fba2980e3f30c77588b51c71e6afabe435917d0

General

Target

627282708d27b267d9d3cbee3fba2980e3f30c77588b51c71e6afabe435917d0.exe
Size

2.7MB
MD5

39a1cde446dbdfbee85fb538b6a2fecf
SHA1

e0cba0a970e93d8c4e2febe70a33c2c5b93c50d4
SHA256

627282708d27b267d9d3cbee3fba2980e3f30c77588b51c71e6afabe435917d0
SHA512

f5d1927b22011a20dd62c304fd568ede6d19a2e3b41a937d56352d5795a7667989e351c7464c1a909982c4deb0ea3cf586d441b1fdad96c3d6bdeb22d491932a
SSDEEP

49152:UMDwqh8Ub9eQWDE9Vzc8a3mamtfJ+1Gtqu0PUAtC4YE0J:XNh8Ub9eQWDEzO2amtfgA8uK8

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__	627282708d27b267d9d3cbee3fba2980e3f30c77588b51c71e6afabe435917d0.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	627282708d27b267d9d3cbee3fba2980e3f30c77588b51c71e6afabe435917d0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	627282708d27b267d9d3cbee3fba2980e3f30c77588b51c71e6afabe435917d0.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-1-5-21-3227495264-2217614367-4027411560-1000\Software\Wine	627282708d27b267d9d3cbee3fba2980e3f30c77588b51c71e6afabe435917d0.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
1952	627282708d27b267d9d3cbee3fba2980e3f30c77588b51c71e6afabe435917d0.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4516	1952	WerFault.exe	81

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	627282708d27b267d9d3cbee3fba2980e3f30c77588b51c71e6afabe435917d0.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	627282708d27b267d9d3cbee3fba2980e3f30c77588b51c71e6afabe435917d0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	627282708d27b267d9d3cbee3fba2980e3f30c77588b51c71e6afabe435917d0.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1952	627282708d27b267d9d3cbee3fba2980e3f30c77588b51c71e6afabe435917d0.exe
1952	627282708d27b267d9d3cbee3fba2980e3f30c77588b51c71e6afabe435917d0.exe
1952	627282708d27b267d9d3cbee3fba2980e3f30c77588b51c71e6afabe435917d0.exe
1952	627282708d27b267d9d3cbee3fba2980e3f30c77588b51c71e6afabe435917d0.exe

C:\Users\Admin\AppData\Local\Temp\627282708d27b267d9d3cbee3fba2980e3f30c77588b51c71e6afabe435917d0.exe
"C:\Users\Admin\AppData\Local\Temp\627282708d27b267d9d3cbee3fba2980e3f30c77588b51c71e6afabe435917d0.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:1952
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1952 -s 1464
  2⤵
  - Program crash
  PID:4516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 372 -p 1952 -ip 1952
1⤵
PID:5092

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/1952-0-0x0000000000FF0000-0x00000000014D3000-memory.dmp

Filesize
4.9MB

Download
memory/1952-1-0x0000000077DE4000-0x0000000077DE6000-memory.dmp

Filesize
8KB

Download
memory/1952-2-0x0000000000FF1000-0x0000000001008000-memory.dmp

Filesize
92KB

Download
memory/1952-3-0x0000000000FF0000-0x00000000014D3000-memory.dmp

Filesize
4.9MB

Download
memory/1952-4-0x0000000000FF0000-0x00000000014D3000-memory.dmp

Filesize
4.9MB

Download
memory/1952-5-0x0000000000FF0000-0x00000000014D3000-memory.dmp

Filesize
4.9MB

Download
memory/1952-6-0x0000000000FF0000-0x00000000014D3000-memory.dmp

Filesize
4.9MB

Download
memory/1952-7-0x0000000000FF0000-0x00000000014D3000-memory.dmp

Filesize
4.9MB

Download
memory/1952-8-0x0000000000FF0000-0x00000000014D3000-memory.dmp

Filesize
4.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads