stealc | bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
28/01/2025, 02:35 UTC

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General

Target

bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.exe
Size

1.7MB
MD5

c990229b34f3b2eee58af2be505866fc
SHA1

573b222bddb7bce861b0e3eff9405a5017418a72
SHA256

bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a
SHA512

f17c98123fda0ce5839c54ae9355fdd8931a3084acf6c0238b9b918bf670df6c19f246bd6c59e81c5d75368507ca3db7d6658f424c27a5bc1ab2e9b476509352
SSDEEP

49152:v6PQ+uWl+n01VWvlNW9ekXVgKJrzyTZwHdpes0:iTuWs01VQl8R6+v

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__	bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.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	bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.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-1-5-21-2045521122-590294423-3465680274-1000\Software\Wine	bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.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
1608	bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3596	1608	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	bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.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	bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1608	bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.exe
1608	bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.exe
1608	bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.exe
1608	bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.exe

C:\Users\Admin\AppData\Local\Temp\bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.exe
"C:\Users\Admin\AppData\Local\Temp\bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.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:1608
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1608 -s 1500
  2⤵
  - Program crash
  PID:3596

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1608 -ip 1608
1⤵
PID:2360

Network

DNS

8.8.8.8.in-addr.arpa

Remote address:

8.8.8.8:53

Request

8.8.8.8.in-addr.arpa

IN PTR

Response

8.8.8.8.in-addr.arpa

IN PTR

dnsgoogle
DNS

97.17.167.52.in-addr.arpa

Remote address:

8.8.8.8:53

Request

97.17.167.52.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

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

17.160.190.20.in-addr.arpa

Remote address:

8.8.8.8:53

Request

17.160.190.20.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

18.31.95.13.in-addr.arpa

Remote address:

8.8.8.8:53

Request

18.31.95.13.in-addr.arpa

IN PTR

Response
DNS

182.129.81.91.in-addr.arpa

Remote address:

8.8.8.8:53

Request

182.129.81.91.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

14.227.111.52.in-addr.arpa

Remote address:

8.8.8.8:53

Request

14.227.111.52.in-addr.arpa

IN PTR

Response
DNS

26.178.89.13.in-addr.arpa

Remote address:

8.8.8.8:53

Request

26.178.89.13.in-addr.arpa

IN PTR

Response

185.215.113.206:80

bb69d5db2aaa93e9a224a0393489f33642004712331153f25df8e01b5bd23b9a.exe

260 B
5

8.8.8.8:53

8.8.8.8.in-addr.arpa

dns

66 B
90 B
1
1

DNS Request

8.8.8.8.in-addr.arpa
8.8.8.8:53

97.17.167.52.in-addr.arpa

dns

71 B
145 B
1
1

DNS Request

97.17.167.52.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

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

17.160.190.20.in-addr.arpa

dns

72 B
158 B
1
1

DNS Request

17.160.190.20.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

18.31.95.13.in-addr.arpa

dns

70 B
144 B
1
1

DNS Request

18.31.95.13.in-addr.arpa
8.8.8.8:53

182.129.81.91.in-addr.arpa

dns

72 B
147 B
1
1

DNS Request

182.129.81.91.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

14.227.111.52.in-addr.arpa

dns

72 B
158 B
1
1

DNS Request

14.227.111.52.in-addr.arpa
8.8.8.8:53

26.178.89.13.in-addr.arpa

dns

71 B
145 B
1
1

DNS Request

26.178.89.13.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/1608-0-0x00000000004A0000-0x0000000000B1B000-memory.dmp

Filesize
6.5MB

Download
memory/1608-1-0x0000000077E54000-0x0000000077E56000-memory.dmp

Filesize
8KB

Download
memory/1608-2-0x00000000004A1000-0x00000000004B8000-memory.dmp

Filesize
92KB

Download
memory/1608-3-0x00000000004A0000-0x0000000000B1B000-memory.dmp

Filesize
6.5MB

Download
memory/1608-4-0x00000000004A0000-0x0000000000B1B000-memory.dmp

Filesize
6.5MB

Download
memory/1608-5-0x00000000004A0000-0x0000000000B1B000-memory.dmp

Filesize
6.5MB

Download
memory/1608-6-0x00000000004A0000-0x0000000000B1B000-memory.dmp

Filesize
6.5MB

Download
memory/1608-7-0x00000000004A0000-0x0000000000B1B000-memory.dmp

Filesize
6.5MB

Download
memory/1608-8-0x00000000004A0000-0x0000000000B1B000-memory.dmp

Filesize
6.5MB

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

DNS Request

DNS Request

MITRE ATT&CK Enterprise v15

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