stealc | 65f8c2da6926e5958c7368fb86923e85dc37be6df4822ff02c572683c499f43a

General

Target

65f8c2da6926e5958c7368fb86923e85dc37be6df4822ff02c572683c499f43a.exe
Size

1.7MB
MD5

b7aec3e69bc8cc14651a6619fe7ad164
SHA1

811750d4e134c07b5416eefe76a760d9d93abfae
SHA256

65f8c2da6926e5958c7368fb86923e85dc37be6df4822ff02c572683c499f43a
SHA512

910444a06767fd67102d4d639f8fc247f99f449c1ae81c80ee4e14b0e715bc35c1a3f4e10ccff6d0ed15fc2e4753d140f3467aa0dadb3de8c87260735d5c0d8b
SSDEEP

49152:ZCzB2GYL7cdqlCHqK4PvnsmtVkCWBJiBiZ/q5J/:ZCzAG4cclCBWptVj5J

Score

10^/10

stealc reno defense_evasion discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

reno

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__	65f8c2da6926e5958c7368fb86923e85dc37be6df4822ff02c572683c499f43a.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\VideoBiosVersion	65f8c2da6926e5958c7368fb86923e85dc37be6df4822ff02c572683c499f43a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	65f8c2da6926e5958c7368fb86923e85dc37be6df4822ff02c572683c499f43a.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-1-5-21-805940606-1861219160-370298170-1000\Software\Wine	65f8c2da6926e5958c7368fb86923e85dc37be6df4822ff02c572683c499f43a.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
1580	65f8c2da6926e5958c7368fb86923e85dc37be6df4822ff02c572683c499f43a.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5056	1580	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	65f8c2da6926e5958c7368fb86923e85dc37be6df4822ff02c572683c499f43a.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	65f8c2da6926e5958c7368fb86923e85dc37be6df4822ff02c572683c499f43a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	65f8c2da6926e5958c7368fb86923e85dc37be6df4822ff02c572683c499f43a.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1580	65f8c2da6926e5958c7368fb86923e85dc37be6df4822ff02c572683c499f43a.exe
1580	65f8c2da6926e5958c7368fb86923e85dc37be6df4822ff02c572683c499f43a.exe
1580	65f8c2da6926e5958c7368fb86923e85dc37be6df4822ff02c572683c499f43a.exe
1580	65f8c2da6926e5958c7368fb86923e85dc37be6df4822ff02c572683c499f43a.exe

C:\Users\Admin\AppData\Local\Temp\65f8c2da6926e5958c7368fb86923e85dc37be6df4822ff02c572683c499f43a.exe
"C:\Users\Admin\AppData\Local\Temp\65f8c2da6926e5958c7368fb86923e85dc37be6df4822ff02c572683c499f43a.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:1580
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1580 -s 1476
  2⤵
  - Program crash
  PID:5056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1580 -ip 1580
1⤵
PID:3960

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/1580-0-0x0000000000010000-0x000000000068B000-memory.dmp

Filesize
6.5MB

Download
memory/1580-1-0x0000000076F24000-0x0000000076F26000-memory.dmp

Filesize
8KB

Download
memory/1580-2-0x0000000000011000-0x0000000000028000-memory.dmp

Filesize
92KB

Download
memory/1580-3-0x0000000000010000-0x000000000068B000-memory.dmp

Filesize
6.5MB

Download
memory/1580-4-0x0000000000010000-0x000000000068B000-memory.dmp

Filesize
6.5MB

Download
memory/1580-5-0x0000000000010000-0x000000000068B000-memory.dmp

Filesize
6.5MB

Download
memory/1580-6-0x0000000000010000-0x000000000068B000-memory.dmp

Filesize
6.5MB

Download
memory/1580-7-0x0000000000010000-0x000000000068B000-memory.dmp

Filesize
6.5MB

Download
memory/1580-8-0x0000000000010000-0x000000000068B000-memory.dmp

Filesize
6.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads