stealc | 3d2963cd12325ac473c4a35345fff227730d62746bd7e0b345a8d1dca87c0cc7

General

Target

3d2963cd12325ac473c4a35345fff227730d62746bd7e0b345a8d1dca87c0cc7.exe
Size

1.7MB
MD5

7f623679cd6f2efbad6162e069bcb751
SHA1

f3c8ac15093fae3e64d4d2b49a98e96058346d3c
SHA256

3d2963cd12325ac473c4a35345fff227730d62746bd7e0b345a8d1dca87c0cc7
SHA512

a8a0b91f20e2c99ee5a964a31abcc23b617225c49b3b4189e092ed2a1a29232a1d88863142e32d5ac2fab9fcccb1e417f16048f4520c8080f0d6547306938738
SSDEEP

24576:mgdfW911MOeaBUTBozeykDxl2VatG82Ias+ZwBbNO4PLy74L0WukrqLANfuG:mgFWDHBDO2ZnIahZw58KhL0cNd

Score

10^/10

stealc brat discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

brat

C2

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	3d2963cd12325ac473c4a35345fff227730d62746bd7e0b345a8d1dca87c0cc7.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	3d2963cd12325ac473c4a35345fff227730d62746bd7e0b345a8d1dca87c0cc7.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	3d2963cd12325ac473c4a35345fff227730d62746bd7e0b345a8d1dca87c0cc7.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-1-5-21-1045960512-3948844814-3059691613-1000\Software\Wine	3d2963cd12325ac473c4a35345fff227730d62746bd7e0b345a8d1dca87c0cc7.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4440	3d2963cd12325ac473c4a35345fff227730d62746bd7e0b345a8d1dca87c0cc7.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1408	4440	WerFault.exe	82

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	3d2963cd12325ac473c4a35345fff227730d62746bd7e0b345a8d1dca87c0cc7.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	3d2963cd12325ac473c4a35345fff227730d62746bd7e0b345a8d1dca87c0cc7.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	3d2963cd12325ac473c4a35345fff227730d62746bd7e0b345a8d1dca87c0cc7.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4440	3d2963cd12325ac473c4a35345fff227730d62746bd7e0b345a8d1dca87c0cc7.exe
4440	3d2963cd12325ac473c4a35345fff227730d62746bd7e0b345a8d1dca87c0cc7.exe
4440	3d2963cd12325ac473c4a35345fff227730d62746bd7e0b345a8d1dca87c0cc7.exe
4440	3d2963cd12325ac473c4a35345fff227730d62746bd7e0b345a8d1dca87c0cc7.exe

C:\Users\Admin\AppData\Local\Temp\3d2963cd12325ac473c4a35345fff227730d62746bd7e0b345a8d1dca87c0cc7.exe
"C:\Users\Admin\AppData\Local\Temp\3d2963cd12325ac473c4a35345fff227730d62746bd7e0b345a8d1dca87c0cc7.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
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4440
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4440 -s 1484
  2⤵
  - Program crash
  PID:1408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4440 -ip 4440
1⤵
PID:4812

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

5

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4440-0-0x0000000000210000-0x0000000000898000-memory.dmp

Filesize
6.5MB

Download
memory/4440-1-0x0000000077864000-0x0000000077866000-memory.dmp

Filesize
8KB

Download
memory/4440-2-0x0000000000211000-0x0000000000228000-memory.dmp

Filesize
92KB

Download
memory/4440-3-0x0000000000210000-0x0000000000898000-memory.dmp

Filesize
6.5MB

Download
memory/4440-4-0x0000000000210000-0x0000000000898000-memory.dmp

Filesize
6.5MB

Download
memory/4440-5-0x0000000000210000-0x0000000000898000-memory.dmp

Filesize
6.5MB

Download
memory/4440-6-0x0000000000210000-0x0000000000898000-memory.dmp

Filesize
6.5MB

Download
memory/4440-7-0x0000000000210000-0x0000000000898000-memory.dmp

Filesize
6.5MB

Download
memory/4440-8-0x0000000000210000-0x0000000000898000-memory.dmp

Filesize
6.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads