stealc | 02ef72ce1848869eda35d518c46c9d1ce61475276204b01713c784d425fa0311

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26/01/2025, 11:44 UTC

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General

Target

02ef72ce1848869eda35d518c46c9d1ce61475276204b01713c784d425fa0311.exe
Size

1.7MB
MD5

0ab07f832db786eaabdeb417e19cf33a
SHA1

009629d0f3f238f7848332ea9ae77bccd1ecbe8d
SHA256

02ef72ce1848869eda35d518c46c9d1ce61475276204b01713c784d425fa0311
SHA512

8e6e17d337c8069a1719063bc4968028986329ab28fb357083c9c2296736344b60bbd0fbf833447fd424faaf8b07b8dda30b2333841ffa0659b0083fcc965a7c
SSDEEP

24576:rhIpSzHXP2ydfuHjeS+ifCEbnAj1t3u25KhdYYQbFx8LagXcOp8b0x8mrP4hFY:5z3OyZ5UwtbKhibkLa+d8mMh

Score

10^/10

stealc brat defense_evasion discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

brat

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

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	02ef72ce1848869eda35d518c46c9d1ce61475276204b01713c784d425fa0311.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	02ef72ce1848869eda35d518c46c9d1ce61475276204b01713c784d425fa0311.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	02ef72ce1848869eda35d518c46c9d1ce61475276204b01713c784d425fa0311.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.

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Wine	02ef72ce1848869eda35d518c46c9d1ce61475276204b01713c784d425fa0311.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
4408	02ef72ce1848869eda35d518c46c9d1ce61475276204b01713c784d425fa0311.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4996	4408	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	02ef72ce1848869eda35d518c46c9d1ce61475276204b01713c784d425fa0311.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	02ef72ce1848869eda35d518c46c9d1ce61475276204b01713c784d425fa0311.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	02ef72ce1848869eda35d518c46c9d1ce61475276204b01713c784d425fa0311.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4408	02ef72ce1848869eda35d518c46c9d1ce61475276204b01713c784d425fa0311.exe
4408	02ef72ce1848869eda35d518c46c9d1ce61475276204b01713c784d425fa0311.exe
4408	02ef72ce1848869eda35d518c46c9d1ce61475276204b01713c784d425fa0311.exe
4408	02ef72ce1848869eda35d518c46c9d1ce61475276204b01713c784d425fa0311.exe

C:\Users\Admin\AppData\Local\Temp\02ef72ce1848869eda35d518c46c9d1ce61475276204b01713c784d425fa0311.exe
"C:\Users\Admin\AppData\Local\Temp\02ef72ce1848869eda35d518c46c9d1ce61475276204b01713c784d425fa0311.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:4408
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4408 -s 1472
  2⤵
  - Program crash
  PID:4996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4408 -ip 4408
1⤵
PID:4972

Network

DNS

104.219.191.52.in-addr.arpa

Remote address:

8.8.8.8:53

Request

104.219.191.52.in-addr.arpa

IN PTR

Response
DNS

172.214.232.199.in-addr.arpa

Remote address:

8.8.8.8:53

Request

172.214.232.199.in-addr.arpa

IN PTR

Response
DNS

140.32.126.40.in-addr.arpa

Remote address:

8.8.8.8:53

Request

140.32.126.40.in-addr.arpa

IN PTR

Response
DNS

5.114.82.104.in-addr.arpa

Remote address:

8.8.8.8:53

Request

5.114.82.104.in-addr.arpa

IN PTR

Response

5.114.82.104.in-addr.arpa

IN PTR

a104-82-114-5deploystaticakamaitechnologiescom
DNS

154.239.44.20.in-addr.arpa

Remote address:

8.8.8.8:53

Request

154.239.44.20.in-addr.arpa

IN PTR

Response
DNS

200.163.202.172.in-addr.arpa

Remote address:

8.8.8.8:53

Request

200.163.202.172.in-addr.arpa

IN PTR

Response
DNS

198.187.3.20.in-addr.arpa

Remote address:

8.8.8.8:53

Request

198.187.3.20.in-addr.arpa

IN PTR

Response
DNS

172.210.232.199.in-addr.arpa

Remote address:

8.8.8.8:53

Request

172.210.232.199.in-addr.arpa

IN PTR

Response
DNS

43.229.111.52.in-addr.arpa

Remote address:

8.8.8.8:53

Request

43.229.111.52.in-addr.arpa

IN PTR

Response

185.215.113.206:80

02ef72ce1848869eda35d518c46c9d1ce61475276204b01713c784d425fa0311.exe

260 B
5

8.8.8.8:53

104.219.191.52.in-addr.arpa

dns

73 B
147 B
1
1

DNS Request

104.219.191.52.in-addr.arpa
8.8.8.8:53

172.214.232.199.in-addr.arpa

dns

74 B
128 B
1
1

DNS Request

172.214.232.199.in-addr.arpa
8.8.8.8:53

140.32.126.40.in-addr.arpa

dns

72 B
158 B
1
1

DNS Request

140.32.126.40.in-addr.arpa
8.8.8.8:53

5.114.82.104.in-addr.arpa

dns

71 B
135 B
1
1

DNS Request

5.114.82.104.in-addr.arpa
8.8.8.8:53

154.239.44.20.in-addr.arpa

dns

72 B
158 B
1
1

DNS Request

154.239.44.20.in-addr.arpa
8.8.8.8:53

200.163.202.172.in-addr.arpa

dns

74 B
160 B
1
1

DNS Request

200.163.202.172.in-addr.arpa
8.8.8.8:53

198.187.3.20.in-addr.arpa

dns

71 B
157 B
1
1

DNS Request

198.187.3.20.in-addr.arpa
8.8.8.8:53

172.210.232.199.in-addr.arpa

dns

74 B
128 B
1
1

DNS Request

172.210.232.199.in-addr.arpa
8.8.8.8:53

43.229.111.52.in-addr.arpa

dns

72 B
158 B
1
1

DNS Request

43.229.111.52.in-addr.arpa

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/4408-0-0x0000000000EA0000-0x0000000001540000-memory.dmp

Filesize
6.6MB

Download
memory/4408-1-0x0000000077C74000-0x0000000077C76000-memory.dmp

Filesize
8KB

Download
memory/4408-3-0x0000000000EA0000-0x0000000001540000-memory.dmp

Filesize
6.6MB

Download
memory/4408-2-0x0000000000EA1000-0x0000000000EB8000-memory.dmp

Filesize
92KB

Download
memory/4408-4-0x0000000000EA0000-0x0000000001540000-memory.dmp

Filesize
6.6MB

Download
memory/4408-5-0x0000000000EA0000-0x0000000001540000-memory.dmp

Filesize
6.6MB

Download
memory/4408-6-0x0000000000EA0000-0x0000000001540000-memory.dmp

Filesize
6.6MB

Download
memory/4408-7-0x0000000000EA0000-0x0000000001540000-memory.dmp

Filesize
6.6MB

Download
memory/4408-8-0x0000000000EA0000-0x0000000001540000-memory.dmp

Filesize
6.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

MITRE ATT&CK Enterprise v15

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Downloads

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