stealc | c703b285bdb6adbaa8f3c636264461a02323b540dd8047ad7e9ceddd1e9c7fd5

Analysis

max time kernel
89s
max time network
18s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
07-11-2024 03:12

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General

Target

c703b285bdb6adbaa8f3c636264461a02323b540dd8047ad7e9ceddd1e9c7fd5.exe
Size

2.1MB
MD5

76fce7331188a24daa7f7048a66a5cf2
SHA1

ed0554614a1dc620ed8624b6f53580fd5ccd7885
SHA256

c703b285bdb6adbaa8f3c636264461a02323b540dd8047ad7e9ceddd1e9c7fd5
SHA512

384a6fcf837242871f951e381a84f49559f5dfb56e83d6ccf1ce2408ee1b1b81153f9fc860f424eafb4f96198a5246a6ddfaefe7f697fc5c9648a1039e448590
SSDEEP

49152:xoAkiA32DadWjtisx+BOfOKwFx79CiSvOEgeCb:aA+32D1isIBOf079CiSvae0

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__	c703b285bdb6adbaa8f3c636264461a02323b540dd8047ad7e9ceddd1e9c7fd5.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	c703b285bdb6adbaa8f3c636264461a02323b540dd8047ad7e9ceddd1e9c7fd5.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	c703b285bdb6adbaa8f3c636264461a02323b540dd8047ad7e9ceddd1e9c7fd5.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-1-5-21-2703099537-420551529-3771253338-1000\Software\Wine	c703b285bdb6adbaa8f3c636264461a02323b540dd8047ad7e9ceddd1e9c7fd5.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1900	c703b285bdb6adbaa8f3c636264461a02323b540dd8047ad7e9ceddd1e9c7fd5.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	c703b285bdb6adbaa8f3c636264461a02323b540dd8047ad7e9ceddd1e9c7fd5.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1900	c703b285bdb6adbaa8f3c636264461a02323b540dd8047ad7e9ceddd1e9c7fd5.exe

C:\Users\Admin\AppData\Local\Temp\c703b285bdb6adbaa8f3c636264461a02323b540dd8047ad7e9ceddd1e9c7fd5.exe
"C:\Users\Admin\AppData\Local\Temp\c703b285bdb6adbaa8f3c636264461a02323b540dd8047ad7e9ceddd1e9c7fd5.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:1900

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/1900-0-0x0000000001360000-0x0000000001AA0000-memory.dmp

Filesize
7.2MB

Download
memory/1900-1-0x0000000077200000-0x0000000077202000-memory.dmp

Filesize
8KB

Download
memory/1900-2-0x0000000001361000-0x00000000013C9000-memory.dmp

Filesize
416KB

Download
memory/1900-3-0x0000000001360000-0x0000000001AA0000-memory.dmp

Filesize
7.2MB

Download
memory/1900-4-0x0000000001360000-0x0000000001AA0000-memory.dmp

Filesize
7.2MB

Download