stealc | e8e156b49677640ac4da557b185eecd39a002ee059a5fbde5d7c92ccb6393e23

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
02-02-2025 08:24

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General

Target

658284074f756693ffa9817d97af67f4.exe
Size

1.7MB
MD5

658284074f756693ffa9817d97af67f4
SHA1

954801c7500ee52e3edb3d06aab3db3243ced6bf
SHA256

e8e156b49677640ac4da557b185eecd39a002ee059a5fbde5d7c92ccb6393e23
SHA512

43d3d9ba9e555bca0efc58f44f58ed958e28d373e848bd6a3f66b56939e8486c2af24f5df0aced0de3dc1eefcb4688b106d447e5ddbdc652257a77b42864c211
SSDEEP

49152:6NnzaiYGt0UlGZYB3LNhFMg0scGc1nu4jwvf:8IGt0UlGZYrEsFcImwvf

Score

10^/10

stealc kira defense_evasion discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

kira

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__	658284074f756693ffa9817d97af67f4.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	658284074f756693ffa9817d97af67f4.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	658284074f756693ffa9817d97af67f4.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-1-5-21-2089655958-977706906-1981639424-1000\Software\Wine	658284074f756693ffa9817d97af67f4.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
3156	658284074f756693ffa9817d97af67f4.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
684	3156	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	658284074f756693ffa9817d97af67f4.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	658284074f756693ffa9817d97af67f4.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	658284074f756693ffa9817d97af67f4.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3156	658284074f756693ffa9817d97af67f4.exe
3156	658284074f756693ffa9817d97af67f4.exe
3156	658284074f756693ffa9817d97af67f4.exe
3156	658284074f756693ffa9817d97af67f4.exe

C:\Users\Admin\AppData\Local\Temp\658284074f756693ffa9817d97af67f4.exe
"C:\Users\Admin\AppData\Local\Temp\658284074f756693ffa9817d97af67f4.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:3156
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3156 -s 1484
  2⤵
  - Program crash
  PID:684

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3156 -ip 3156
1⤵
PID:540

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3156-0-0x0000000000F00000-0x00000000015A5000-memory.dmp

Filesize
6.6MB

Download
memory/3156-1-0x0000000077BA4000-0x0000000077BA6000-memory.dmp

Filesize
8KB

Download
memory/3156-2-0x0000000000F01000-0x0000000000F18000-memory.dmp

Filesize
92KB

Download
memory/3156-3-0x0000000000F00000-0x00000000015A5000-memory.dmp

Filesize
6.6MB

Download
memory/3156-4-0x0000000000F00000-0x00000000015A5000-memory.dmp

Filesize
6.6MB

Download
memory/3156-5-0x0000000000F00000-0x00000000015A5000-memory.dmp

Filesize
6.6MB

Download
memory/3156-6-0x0000000000F00000-0x00000000015A5000-memory.dmp

Filesize
6.6MB

Download
memory/3156-7-0x0000000000F00000-0x00000000015A5000-memory.dmp

Filesize
6.6MB

Download
memory/3156-8-0x0000000000F00000-0x00000000015A5000-memory.dmp

Filesize
6.6MB

Download