stealc | bf16a4877794d068812cb2dd32756c731b5491d54b1eb3ee6da321f93ab69f4b

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-11-2024 03:46

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General

Target

bf16a4877794d068812cb2dd32756c731b5491d54b1eb3ee6da321f93ab69f4b.exe
Size

2.1MB
MD5

e8c67e166d7639998d5900ffff8ebb67
SHA1

0314b649fdaccc8ebdd31fb276e294ff2cad5970
SHA256

bf16a4877794d068812cb2dd32756c731b5491d54b1eb3ee6da321f93ab69f4b
SHA512

5933b04f7a77e88cbe4dec22938ddf59983e263d598e7a6653d1297d51373f4071580a7fa789e814115dbfebe8f24cab35992d8112da917af0a519fec78f0abc
SSDEEP

49152:LaXpVI+GtFD9KOJdNmreiY/Y2mP6rA1CNp4W7Cn62sK61MosByXMcLGA:OZw99rJdASigYwA1mCHMM/Acc6

Score

10^/10

stealc tale discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

tale

http://185.215.113.206

Attributes

url_path
/6c4adf523b719729.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

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	bf16a4877794d068812cb2dd32756c731b5491d54b1eb3ee6da321f93ab69f4b.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	bf16a4877794d068812cb2dd32756c731b5491d54b1eb3ee6da321f93ab69f4b.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	bf16a4877794d068812cb2dd32756c731b5491d54b1eb3ee6da321f93ab69f4b.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.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Wine	bf16a4877794d068812cb2dd32756c731b5491d54b1eb3ee6da321f93ab69f4b.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2668	bf16a4877794d068812cb2dd32756c731b5491d54b1eb3ee6da321f93ab69f4b.exe

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	bf16a4877794d068812cb2dd32756c731b5491d54b1eb3ee6da321f93ab69f4b.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2668	bf16a4877794d068812cb2dd32756c731b5491d54b1eb3ee6da321f93ab69f4b.exe

C:\Users\Admin\AppData\Local\Temp\bf16a4877794d068812cb2dd32756c731b5491d54b1eb3ee6da321f93ab69f4b.exe
"C:\Users\Admin\AppData\Local\Temp\bf16a4877794d068812cb2dd32756c731b5491d54b1eb3ee6da321f93ab69f4b.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
- Suspicious behavior: EnumeratesProcesses
PID:2668

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

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Downloads

memory/2668-0-0x0000000000110000-0x000000000085F000-memory.dmp

Filesize
7.3MB

Download
memory/2668-1-0x0000000077590000-0x0000000077592000-memory.dmp

Filesize
8KB

Download
memory/2668-2-0x0000000000111000-0x0000000000179000-memory.dmp

Filesize
416KB

Download
memory/2668-3-0x0000000000110000-0x000000000085F000-memory.dmp

Filesize
7.3MB

Download
memory/2668-5-0x0000000000110000-0x000000000085F000-memory.dmp

Filesize
7.3MB

Download