stealc | ac26e3ac8e117429b3f25ff51ab53fb9ba45f0597775b7a97f22daac0bd21eb0

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-09-2024 12:12

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General

Target

ac26e3ac8e117429b3f25ff51ab53fb9ba45f0597775b7a97f22daac0bd21eb0.exe
Size

1.7MB
MD5

6537cbc9ec47c9944d2ccb338697a23f
SHA1

e1dda217af278eeca5cf27bce2832646f99b2f56
SHA256

ac26e3ac8e117429b3f25ff51ab53fb9ba45f0597775b7a97f22daac0bd21eb0
SHA512

cf0cbb602781bd781962c0d520307952dafd8b845064d8a2c8aa6cfa54b7b5c5bfc6241cc7012d47db13a61384b050677d372ebaeed697322622d321632f7438
SSDEEP

24576:7uhjqdUTWeG1CQvxmTBeKt9zk6DY7FDDis50OR9aGsqVEHIj4rFGemgDjnVGj:6hjm/eG1zxi4Kt9zlwDMORFq4OjQ

Score

10^/10

stealc leva discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

leva

http://185.215.113.100

Attributes

url_path
/e2b1563c6670f193.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer 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__	ac26e3ac8e117429b3f25ff51ab53fb9ba45f0597775b7a97f22daac0bd21eb0.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	ac26e3ac8e117429b3f25ff51ab53fb9ba45f0597775b7a97f22daac0bd21eb0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	ac26e3ac8e117429b3f25ff51ab53fb9ba45f0597775b7a97f22daac0bd21eb0.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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Wine	ac26e3ac8e117429b3f25ff51ab53fb9ba45f0597775b7a97f22daac0bd21eb0.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2032	ac26e3ac8e117429b3f25ff51ab53fb9ba45f0597775b7a97f22daac0bd21eb0.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	ac26e3ac8e117429b3f25ff51ab53fb9ba45f0597775b7a97f22daac0bd21eb0.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2032	ac26e3ac8e117429b3f25ff51ab53fb9ba45f0597775b7a97f22daac0bd21eb0.exe

C:\Users\Admin\AppData\Local\Temp\ac26e3ac8e117429b3f25ff51ab53fb9ba45f0597775b7a97f22daac0bd21eb0.exe
"C:\Users\Admin\AppData\Local\Temp\ac26e3ac8e117429b3f25ff51ab53fb9ba45f0597775b7a97f22daac0bd21eb0.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:2032

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

Replay Monitor

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Downloads

memory/2032-0-0x0000000001330000-0x000000000199D000-memory.dmp

Filesize
6.4MB

Download
memory/2032-1-0x00000000771B0000-0x00000000771B2000-memory.dmp

Filesize
8KB

Download
memory/2032-2-0x0000000001331000-0x0000000001345000-memory.dmp

Filesize
80KB

Download
memory/2032-3-0x0000000001330000-0x000000000199D000-memory.dmp

Filesize
6.4MB

Download
memory/2032-4-0x0000000001330000-0x000000000199D000-memory.dmp

Filesize
6.4MB

Download