stealc | d83fe79b6260b9bdfd88fd02742a7c9a43aae4321cff65d63abd6c6f0ce05bb1

General

Target

d83fe79b6260b9bdfd88fd02742a7c9a43aae4321cff65d63abd6c6f0ce05bb1.exe
Size

1.7MB
MD5

bb15cf4eb229c392dd06ff8d6e396b00
SHA1

0399a7941c87ee8ffab2993b517aaaafd7352ec6
SHA256

d83fe79b6260b9bdfd88fd02742a7c9a43aae4321cff65d63abd6c6f0ce05bb1
SHA512

5509e2318263b93ab2f2f7e1ccb24b83a6e06a8be42f9208bffb3e1b9cdda3d1e7666a4e29d421ac65a84f473bc0139fa4ac44112b4dbf749bb05d617d633e8c
SSDEEP

49152:iYMFiwUYK0LaiHGdcKjgEJmZGwSZippf7GUU:itAwXtLfccZEpEw

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__	d83fe79b6260b9bdfd88fd02742a7c9a43aae4321cff65d63abd6c6f0ce05bb1.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	d83fe79b6260b9bdfd88fd02742a7c9a43aae4321cff65d63abd6c6f0ce05bb1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	d83fe79b6260b9bdfd88fd02742a7c9a43aae4321cff65d63abd6c6f0ce05bb1.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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Wine	d83fe79b6260b9bdfd88fd02742a7c9a43aae4321cff65d63abd6c6f0ce05bb1.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
2316	d83fe79b6260b9bdfd88fd02742a7c9a43aae4321cff65d63abd6c6f0ce05bb1.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2168	2316	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	d83fe79b6260b9bdfd88fd02742a7c9a43aae4321cff65d63abd6c6f0ce05bb1.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	d83fe79b6260b9bdfd88fd02742a7c9a43aae4321cff65d63abd6c6f0ce05bb1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	d83fe79b6260b9bdfd88fd02742a7c9a43aae4321cff65d63abd6c6f0ce05bb1.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2316	d83fe79b6260b9bdfd88fd02742a7c9a43aae4321cff65d63abd6c6f0ce05bb1.exe
2316	d83fe79b6260b9bdfd88fd02742a7c9a43aae4321cff65d63abd6c6f0ce05bb1.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2316 wrote to memory of 2168	2316	d83fe79b6260b9bdfd88fd02742a7c9a43aae4321cff65d63abd6c6f0ce05bb1.exe	32
PID 2316 wrote to memory of 2168	2316	d83fe79b6260b9bdfd88fd02742a7c9a43aae4321cff65d63abd6c6f0ce05bb1.exe	32
PID 2316 wrote to memory of 2168	2316	d83fe79b6260b9bdfd88fd02742a7c9a43aae4321cff65d63abd6c6f0ce05bb1.exe	32
PID 2316 wrote to memory of 2168	2316	d83fe79b6260b9bdfd88fd02742a7c9a43aae4321cff65d63abd6c6f0ce05bb1.exe	32

C:\Users\Admin\AppData\Local\Temp\d83fe79b6260b9bdfd88fd02742a7c9a43aae4321cff65d63abd6c6f0ce05bb1.exe
"C:\Users\Admin\AppData\Local\Temp\d83fe79b6260b9bdfd88fd02742a7c9a43aae4321cff65d63abd6c6f0ce05bb1.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:2316
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2316 -s 928
  2⤵
  - Program crash
  PID:2168

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/2316-0-0x00000000010F0000-0x0000000001786000-memory.dmp

Filesize
6.6MB

Download
memory/2316-1-0x0000000077880000-0x0000000077882000-memory.dmp

Filesize
8KB

Download
memory/2316-2-0x00000000010F1000-0x0000000001108000-memory.dmp

Filesize
92KB

Download
memory/2316-3-0x00000000010F0000-0x0000000001786000-memory.dmp

Filesize
6.6MB

Download
memory/2316-4-0x00000000010F0000-0x0000000001786000-memory.dmp

Filesize
6.6MB

Download
memory/2316-5-0x00000000010F0000-0x0000000001786000-memory.dmp

Filesize
6.6MB

Download
memory/2316-6-0x00000000010F0000-0x0000000001786000-memory.dmp

Filesize
6.6MB

Download
memory/2316-7-0x00000000010F0000-0x0000000001786000-memory.dmp

Filesize
6.6MB

Download
memory/2316-8-0x00000000010F0000-0x0000000001786000-memory.dmp

Filesize
6.6MB

Download
memory/2316-9-0x00000000010F0000-0x0000000001786000-memory.dmp

Filesize
6.6MB

Download
memory/2316-10-0x00000000010F0000-0x0000000001786000-memory.dmp

Filesize
6.6MB

Download
memory/2316-11-0x00000000010F0000-0x0000000001786000-memory.dmp

Filesize
6.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads