stealc | a62d0eecf7d7b087c17dd729b909acf3a7727fb57d7c15ff950efea454f40920

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
07/09/2024, 01:01

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General

Target

7af1ac95d468a1b0d9dfb2dbe0dba8b3aca9a09e2620a0ec35dc087f829f9401.exe
Size

1.7MB
MD5

1777e41c01138cfcd1b8e4b6082ae3b1
SHA1

bf83c19106c0226d8e3e08fbbd5633ce96472bf0
SHA256

7af1ac95d468a1b0d9dfb2dbe0dba8b3aca9a09e2620a0ec35dc087f829f9401
SHA512

e44f8d2b9c5f33b48c64107b9a1c8fd0ac77bf88b465e6fcdbcc2b1b3253f71922b350048e55b6d97e938892084b0d7cc098cdd208ee1f15b9434426449fa88b
SSDEEP

49152:V7W9uuFKbA8/VUtFlVMFCZVjyizEDOztVefhGMxSSY:TiKbd9UBVMy2izYO8

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__	7af1ac95d468a1b0d9dfb2dbe0dba8b3aca9a09e2620a0ec35dc087f829f9401.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	7af1ac95d468a1b0d9dfb2dbe0dba8b3aca9a09e2620a0ec35dc087f829f9401.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	7af1ac95d468a1b0d9dfb2dbe0dba8b3aca9a09e2620a0ec35dc087f829f9401.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-1-5-21-1506706701-1246725540-2219210854-1000\Software\Wine	7af1ac95d468a1b0d9dfb2dbe0dba8b3aca9a09e2620a0ec35dc087f829f9401.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2824	7af1ac95d468a1b0d9dfb2dbe0dba8b3aca9a09e2620a0ec35dc087f829f9401.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	7af1ac95d468a1b0d9dfb2dbe0dba8b3aca9a09e2620a0ec35dc087f829f9401.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2824	7af1ac95d468a1b0d9dfb2dbe0dba8b3aca9a09e2620a0ec35dc087f829f9401.exe

C:\Users\Admin\AppData\Local\Temp\7af1ac95d468a1b0d9dfb2dbe0dba8b3aca9a09e2620a0ec35dc087f829f9401.exe
"C:\Users\Admin\AppData\Local\Temp\7af1ac95d468a1b0d9dfb2dbe0dba8b3aca9a09e2620a0ec35dc087f829f9401.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:2824

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/2824-0-0x0000000000C30000-0x00000000012C5000-memory.dmp

Filesize
6.6MB

Download
memory/2824-1-0x0000000077E50000-0x0000000077E52000-memory.dmp

Filesize
8KB

Download
memory/2824-2-0x0000000000C31000-0x0000000000C45000-memory.dmp

Filesize
80KB

Download
memory/2824-3-0x0000000000C30000-0x00000000012C5000-memory.dmp

Filesize
6.6MB

Download
memory/2824-4-0x0000000000C30000-0x00000000012C5000-memory.dmp

Filesize
6.6MB

Download