stealc | fc3456990d88dba9d5e7f213e5d8e7d7bd137ac19937a39103d5d4ff86663b5c

General

Target

fc3456990d88dba9d5e7f213e5d8e7d7bd137ac19937a39103d5d4ff86663b5c.exe
Size

4.9MB
MD5

cbd44fdf9ded4fc3b65e925528543dd8
SHA1

f5b3e995d73b91049d38b6cc2804ccb9c302bf24
SHA256

fc3456990d88dba9d5e7f213e5d8e7d7bd137ac19937a39103d5d4ff86663b5c
SHA512

64d2524dfef14bd4faee7425352bdaaef6ee235dcf372b66589ce1cbb660168e3d4a27f6d04b4a46af8545382026d24ebb63bf8329ca2bd9f8303e293df6a40f
SSDEEP

49152:k7SDUL3ekEYseAV4pWCrF9YwN24iKn0n/PY:sLOkj6VJCrFX2QA

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__	fc3456990d88dba9d5e7f213e5d8e7d7bd137ac19937a39103d5d4ff86663b5c.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	fc3456990d88dba9d5e7f213e5d8e7d7bd137ac19937a39103d5d4ff86663b5c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	fc3456990d88dba9d5e7f213e5d8e7d7bd137ac19937a39103d5d4ff86663b5c.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-1-5-21-3756129449-3121373848-4276368241-1000\Software\Wine	fc3456990d88dba9d5e7f213e5d8e7d7bd137ac19937a39103d5d4ff86663b5c.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
2016	fc3456990d88dba9d5e7f213e5d8e7d7bd137ac19937a39103d5d4ff86663b5c.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1092	2016	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	fc3456990d88dba9d5e7f213e5d8e7d7bd137ac19937a39103d5d4ff86663b5c.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	fc3456990d88dba9d5e7f213e5d8e7d7bd137ac19937a39103d5d4ff86663b5c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	fc3456990d88dba9d5e7f213e5d8e7d7bd137ac19937a39103d5d4ff86663b5c.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2016	fc3456990d88dba9d5e7f213e5d8e7d7bd137ac19937a39103d5d4ff86663b5c.exe
2016	fc3456990d88dba9d5e7f213e5d8e7d7bd137ac19937a39103d5d4ff86663b5c.exe
2016	fc3456990d88dba9d5e7f213e5d8e7d7bd137ac19937a39103d5d4ff86663b5c.exe
2016	fc3456990d88dba9d5e7f213e5d8e7d7bd137ac19937a39103d5d4ff86663b5c.exe

C:\Users\Admin\AppData\Local\Temp\fc3456990d88dba9d5e7f213e5d8e7d7bd137ac19937a39103d5d4ff86663b5c.exe
"C:\Users\Admin\AppData\Local\Temp\fc3456990d88dba9d5e7f213e5d8e7d7bd137ac19937a39103d5d4ff86663b5c.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:2016
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 1488
  2⤵
  - Program crash
  PID:1092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2016 -ip 2016
1⤵
PID:2532

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/2016-0-0x0000000000490000-0x0000000000982000-memory.dmp

Filesize
4.9MB

Download
memory/2016-1-0x0000000077BD4000-0x0000000077BD6000-memory.dmp

Filesize
8KB

Download
memory/2016-3-0x0000000000490000-0x0000000000982000-memory.dmp

Filesize
4.9MB

Download
memory/2016-2-0x0000000000491000-0x00000000006DA000-memory.dmp

Filesize
2.3MB

Download
memory/2016-4-0x0000000000490000-0x0000000000982000-memory.dmp

Filesize
4.9MB

Download
memory/2016-6-0x0000000000490000-0x0000000000982000-memory.dmp

Filesize
4.9MB

Download
memory/2016-5-0x0000000000491000-0x00000000006DA000-memory.dmp

Filesize
2.3MB

Download
memory/2016-7-0x0000000000490000-0x0000000000982000-memory.dmp

Filesize
4.9MB

Download
memory/2016-8-0x0000000000490000-0x0000000000982000-memory.dmp

Filesize
4.9MB

Download
memory/2016-9-0x0000000000490000-0x0000000000982000-memory.dmp

Filesize
4.9MB

Download
memory/2016-10-0x0000000000491000-0x00000000006DA000-memory.dmp

Filesize
2.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads