stealc | a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-11-2024 02:55

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General

Target

a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5.exe
Size

2.1MB
MD5

7a6fb3221e1a7c6c17fdfedfe627a427
SHA1

3761f898656c79d8564248c9817400e5f8080b09
SHA256

a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5
SHA512

69760b7878f6877c12779a479ec3c9bfb63dc3f3d631727d8a5820fe2d701e6af533426b8f8a4aaf0d127be27a34d4444c034f21bf3cf236ffae81f67a4d9d1c
SSDEEP

49152:T9KIiDYKFm9fRgXVc3SebUFLcBSSDhLJelbxZJICvgcMkVy:T9KE2WfRUMh8GS+wxZ/Mi

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__	a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5.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	a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5.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-1-5-21-4177215427-74451935-3209572229-1000\Software\Wine	a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2336	a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5.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	a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2336	a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5.exe

C:\Users\Admin\AppData\Local\Temp\a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5.exe
"C:\Users\Admin\AppData\Local\Temp\a63fcb0e8ed99f42ff8269e524321434af557140d82fc02e1a444316e7231aa5.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:2336

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/2336-0-0x0000000001190000-0x00000000018D1000-memory.dmp

Filesize
7.3MB

Download
memory/2336-1-0x0000000077C90000-0x0000000077C92000-memory.dmp

Filesize
8KB

Download
memory/2336-2-0x0000000001191000-0x00000000011F9000-memory.dmp

Filesize
416KB

Download
memory/2336-3-0x0000000001190000-0x00000000018D1000-memory.dmp

Filesize
7.3MB

Download
memory/2336-4-0x0000000001190000-0x00000000018D1000-memory.dmp

Filesize
7.3MB

Download