stealc | f4a38bfe6d64ae092c608adf24f3b294710aacc510f628c4e19e1a1800fb42b8

Analysis

max time kernel
66s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
24-11-2024 02:55

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General

Target

f4a38bfe6d64ae092c608adf24f3b294710aacc510f628c4e19e1a1800fb42b8.exe
Size

1.7MB
MD5

9f1e2f4308ddb08ce70a669d67a97763
SHA1

fa3222ecc5bc0e59f5bcd16562bdc0cb9be9f1ee
SHA256

f4a38bfe6d64ae092c608adf24f3b294710aacc510f628c4e19e1a1800fb42b8
SHA512

d788a4497a4273f379ec2ca975941289eece214b391576133e86ba517224081a82004df6fdab139e674575e32c459c880f433970a7714b7a5e936741e9217c0c
SSDEEP

24576:ItKn/l1KCGkWy8u4Xju2cyzw3ldmguquIYJScPLK/VoF1mVLd7q:IOtR9qX9zwSqMPjYZ

Score

10^/10

stealc mars discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

mars

http://185.215.113.206

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

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

f4a38bfe6d64ae092c608adf24f3b294710aacc510f628c4e19e1a1800fb42b8.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	f4a38bfe6d64ae092c608adf24f3b294710aacc510f628c4e19e1a1800fb42b8.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

Processes:

f4a38bfe6d64ae092c608adf24f3b294710aacc510f628c4e19e1a1800fb42b8.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	f4a38bfe6d64ae092c608adf24f3b294710aacc510f628c4e19e1a1800fb42b8.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	f4a38bfe6d64ae092c608adf24f3b294710aacc510f628c4e19e1a1800fb42b8.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

Processes:

f4a38bfe6d64ae092c608adf24f3b294710aacc510f628c4e19e1a1800fb42b8.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Wine	f4a38bfe6d64ae092c608adf24f3b294710aacc510f628c4e19e1a1800fb42b8.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

f4a38bfe6d64ae092c608adf24f3b294710aacc510f628c4e19e1a1800fb42b8.exe

pid	Process
2536	f4a38bfe6d64ae092c608adf24f3b294710aacc510f628c4e19e1a1800fb42b8.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

Processes:

f4a38bfe6d64ae092c608adf24f3b294710aacc510f628c4e19e1a1800fb42b8.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f4a38bfe6d64ae092c608adf24f3b294710aacc510f628c4e19e1a1800fb42b8.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

f4a38bfe6d64ae092c608adf24f3b294710aacc510f628c4e19e1a1800fb42b8.exe

pid	Process
2536	f4a38bfe6d64ae092c608adf24f3b294710aacc510f628c4e19e1a1800fb42b8.exe

C:\Users\Admin\AppData\Local\Temp\f4a38bfe6d64ae092c608adf24f3b294710aacc510f628c4e19e1a1800fb42b8.exe
"C:\Users\Admin\AppData\Local\Temp\f4a38bfe6d64ae092c608adf24f3b294710aacc510f628c4e19e1a1800fb42b8.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:2536

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/2536-0-0x0000000000D80000-0x0000000001427000-memory.dmp

Filesize
6.7MB

Download
memory/2536-1-0x0000000076F50000-0x0000000076F52000-memory.dmp

Filesize
8KB

Download
memory/2536-2-0x0000000000D81000-0x0000000000D98000-memory.dmp

Filesize
92KB

Download
memory/2536-3-0x0000000000D80000-0x0000000001427000-memory.dmp

Filesize
6.7MB

Download
memory/2536-5-0x0000000000D80000-0x0000000001427000-memory.dmp

Filesize
6.7MB

Download