stealc | 12155b640cfbf5e91481bec6837cc532227488a45625dee25db74a2d8d4e33c8

General

Target

f27e8de2c223f4f3a65897edb02b418d.exe
Size

1.7MB
MD5

f27e8de2c223f4f3a65897edb02b418d
SHA1

fba65a32b91e645dd9ceec6de97e27de427c3e9d
SHA256

12155b640cfbf5e91481bec6837cc532227488a45625dee25db74a2d8d4e33c8
SHA512

48c899bc0eb401cabf669feb857d1f45862a9b66de9b7f55374d8f6dbf16eec85d069dd060ce3af3643a3d914fed577c5878037a9379f1a6e9573e0ef84366f8
SSDEEP

49152:mvizimrTm2jViFazo587i6d1J7oOL/IR:mvizDNZBoud11o6g

Score

10^/10

stealc kira defense_evasion discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

kira

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__	f27e8de2c223f4f3a65897edb02b418d.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	f27e8de2c223f4f3a65897edb02b418d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	f27e8de2c223f4f3a65897edb02b418d.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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Wine	f27e8de2c223f4f3a65897edb02b418d.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
2080	f27e8de2c223f4f3a65897edb02b418d.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2008	2080	WerFault.exe	29

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	f27e8de2c223f4f3a65897edb02b418d.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	f27e8de2c223f4f3a65897edb02b418d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	f27e8de2c223f4f3a65897edb02b418d.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2080	f27e8de2c223f4f3a65897edb02b418d.exe
2080	f27e8de2c223f4f3a65897edb02b418d.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2080 wrote to memory of 2008	2080	f27e8de2c223f4f3a65897edb02b418d.exe	31
PID 2080 wrote to memory of 2008	2080	f27e8de2c223f4f3a65897edb02b418d.exe	31
PID 2080 wrote to memory of 2008	2080	f27e8de2c223f4f3a65897edb02b418d.exe	31
PID 2080 wrote to memory of 2008	2080	f27e8de2c223f4f3a65897edb02b418d.exe	31

C:\Users\Admin\AppData\Local\Temp\f27e8de2c223f4f3a65897edb02b418d.exe
"C:\Users\Admin\AppData\Local\Temp\f27e8de2c223f4f3a65897edb02b418d.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
- Suspicious use of WriteProcessMemory
PID:2080
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2080 -s 924
  2⤵
  - Program crash
  PID:2008

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2080-0-0x00000000008F0000-0x0000000000F87000-memory.dmp

Filesize
6.6MB

Download
memory/2080-1-0x0000000077400000-0x0000000077402000-memory.dmp

Filesize
8KB

Download
memory/2080-2-0x00000000008F1000-0x0000000000908000-memory.dmp

Filesize
92KB

Download
memory/2080-3-0x00000000008F0000-0x0000000000F87000-memory.dmp

Filesize
6.6MB

Download
memory/2080-4-0x00000000008F0000-0x0000000000F87000-memory.dmp

Filesize
6.6MB

Download
memory/2080-5-0x00000000008F0000-0x0000000000F87000-memory.dmp

Filesize
6.6MB

Download
memory/2080-6-0x00000000008F0000-0x0000000000F87000-memory.dmp

Filesize
6.6MB

Download
memory/2080-7-0x00000000008F0000-0x0000000000F87000-memory.dmp

Filesize
6.6MB

Download
memory/2080-8-0x00000000008F0000-0x0000000000F87000-memory.dmp

Filesize
6.6MB

Download
memory/2080-9-0x00000000008F0000-0x0000000000F87000-memory.dmp

Filesize
6.6MB

Download
memory/2080-10-0x00000000008F0000-0x0000000000F87000-memory.dmp

Filesize
6.6MB

Download
memory/2080-11-0x00000000008F0000-0x0000000000F87000-memory.dmp

Filesize
6.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads