stealc | f280e9e9277efd404dc774f2ed689f456df4998404e4a08ab2f104de1b350e1e

General

Target

f280e9e9277efd404dc774f2ed689f456df4998404e4a08ab2f104de1b350e1e.exe
Size

1.8MB
MD5

c9cf975868fc3baa0d555d2e29db539e
SHA1

38d136314b9fef3e2ad7ae3555467088fb88a667
SHA256

f280e9e9277efd404dc774f2ed689f456df4998404e4a08ab2f104de1b350e1e
SHA512

96644ce4012b0ad7e6345515dbc1c45601cbdeebb28cd84fe74a99aa7942b21661a1bb2166d960e66e9b16c65e71dcd33d731ce76b7e531eefcf48ef14b10712
SSDEEP

49152:uWvIj0Z9JMO6JY4OKzw/BZWh+kmf9Ae+FGqdp0U3du496dKw:BAy9JMOtQw/BZWh+kmu7FGq1tu4IF

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__	f280e9e9277efd404dc774f2ed689f456df4998404e4a08ab2f104de1b350e1e.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	f280e9e9277efd404dc774f2ed689f456df4998404e4a08ab2f104de1b350e1e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	f280e9e9277efd404dc774f2ed689f456df4998404e4a08ab2f104de1b350e1e.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-1-5-21-70482961-775596374-3727440602-1000\Software\Wine	f280e9e9277efd404dc774f2ed689f456df4998404e4a08ab2f104de1b350e1e.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
4464	f280e9e9277efd404dc774f2ed689f456df4998404e4a08ab2f104de1b350e1e.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4556	4464	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	f280e9e9277efd404dc774f2ed689f456df4998404e4a08ab2f104de1b350e1e.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	f280e9e9277efd404dc774f2ed689f456df4998404e4a08ab2f104de1b350e1e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	f280e9e9277efd404dc774f2ed689f456df4998404e4a08ab2f104de1b350e1e.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4464	f280e9e9277efd404dc774f2ed689f456df4998404e4a08ab2f104de1b350e1e.exe
4464	f280e9e9277efd404dc774f2ed689f456df4998404e4a08ab2f104de1b350e1e.exe
4464	f280e9e9277efd404dc774f2ed689f456df4998404e4a08ab2f104de1b350e1e.exe
4464	f280e9e9277efd404dc774f2ed689f456df4998404e4a08ab2f104de1b350e1e.exe

C:\Users\Admin\AppData\Local\Temp\f280e9e9277efd404dc774f2ed689f456df4998404e4a08ab2f104de1b350e1e.exe
"C:\Users\Admin\AppData\Local\Temp\f280e9e9277efd404dc774f2ed689f456df4998404e4a08ab2f104de1b350e1e.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:4464
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4464 -s 1492
  2⤵
  - Program crash
  PID:4556

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4464 -ip 4464
1⤵
PID:2908

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/4464-0-0x0000000000C30000-0x00000000012DC000-memory.dmp

Filesize
6.7MB

Download
memory/4464-1-0x00000000772D4000-0x00000000772D6000-memory.dmp

Filesize
8KB

Download
memory/4464-2-0x0000000000C31000-0x0000000000C48000-memory.dmp

Filesize
92KB

Download
memory/4464-3-0x0000000000C30000-0x00000000012DC000-memory.dmp

Filesize
6.7MB

Download
memory/4464-4-0x0000000000C30000-0x00000000012DC000-memory.dmp

Filesize
6.7MB

Download
memory/4464-5-0x0000000000C30000-0x00000000012DC000-memory.dmp

Filesize
6.7MB

Download
memory/4464-6-0x0000000000C30000-0x00000000012DC000-memory.dmp

Filesize
6.7MB

Download
memory/4464-7-0x0000000000C30000-0x00000000012DC000-memory.dmp

Filesize
6.7MB

Download
memory/4464-8-0x0000000000C30000-0x00000000012DC000-memory.dmp

Filesize
6.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads