stealc | 3e6670b28e6a555a94c2b6dd9c5159bd2d0f0fd80d1c768f332b256cfd8a06e5

Analysis

max time kernel
148s
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
23/01/2025, 17:45 UTC

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General

Target

3e6670b28e6a555a94c2b6dd9c5159bd2d0f0fd80d1c768f332b256cfd8a06e5.exe
Size

1.7MB
MD5

774b886af101cbd81218638ff8997b1c
SHA1

5206f2bf6c12b0a89e64d2a4e6b7eca76ec91beb
SHA256

3e6670b28e6a555a94c2b6dd9c5159bd2d0f0fd80d1c768f332b256cfd8a06e5
SHA512

4d0e0485f2a2c3b7cefe18fb0a9ca8260fd26f3e40c8029f8813e2d47686fb74b6ffae8fc859ddb77d56002e181642dbc71f06576b173bfd0b0ab650d03b92ee
SSDEEP

49152:GGuQwAOVggl6i4jHRX0S6dtiWjOIg1t/a:GGHwAOwiKHRE1e8gy

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__	3e6670b28e6a555a94c2b6dd9c5159bd2d0f0fd80d1c768f332b256cfd8a06e5.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	3e6670b28e6a555a94c2b6dd9c5159bd2d0f0fd80d1c768f332b256cfd8a06e5.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	3e6670b28e6a555a94c2b6dd9c5159bd2d0f0fd80d1c768f332b256cfd8a06e5.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	3e6670b28e6a555a94c2b6dd9c5159bd2d0f0fd80d1c768f332b256cfd8a06e5.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
3504	3e6670b28e6a555a94c2b6dd9c5159bd2d0f0fd80d1c768f332b256cfd8a06e5.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1680	3504	WerFault.exe	81

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	3e6670b28e6a555a94c2b6dd9c5159bd2d0f0fd80d1c768f332b256cfd8a06e5.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	3e6670b28e6a555a94c2b6dd9c5159bd2d0f0fd80d1c768f332b256cfd8a06e5.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	3e6670b28e6a555a94c2b6dd9c5159bd2d0f0fd80d1c768f332b256cfd8a06e5.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3504	3e6670b28e6a555a94c2b6dd9c5159bd2d0f0fd80d1c768f332b256cfd8a06e5.exe
3504	3e6670b28e6a555a94c2b6dd9c5159bd2d0f0fd80d1c768f332b256cfd8a06e5.exe
3504	3e6670b28e6a555a94c2b6dd9c5159bd2d0f0fd80d1c768f332b256cfd8a06e5.exe
3504	3e6670b28e6a555a94c2b6dd9c5159bd2d0f0fd80d1c768f332b256cfd8a06e5.exe

C:\Users\Admin\AppData\Local\Temp\3e6670b28e6a555a94c2b6dd9c5159bd2d0f0fd80d1c768f332b256cfd8a06e5.exe
"C:\Users\Admin\AppData\Local\Temp\3e6670b28e6a555a94c2b6dd9c5159bd2d0f0fd80d1c768f332b256cfd8a06e5.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:3504
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3504 -s 1456
  2⤵
  - Program crash
  PID:1680

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3504 -ip 3504
1⤵
PID:4228

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

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

98.179.15.23.in-addr.arpa

Remote address:

8.8.8.8:53

Request

98.179.15.23.in-addr.arpa

IN PTR

Response

98.179.15.23.in-addr.arpa

IN PTR

a23-15-179-98deploystaticakamaitechnologiescom
DNS

69.31.126.40.in-addr.arpa

Remote address:

8.8.8.8:53

Request

69.31.126.40.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

13.86.106.20.in-addr.arpa

Remote address:

8.8.8.8:53

Request

13.86.106.20.in-addr.arpa

IN PTR

Response
DNS

212.20.149.52.in-addr.arpa

Remote address:

8.8.8.8:53

Request

212.20.149.52.in-addr.arpa

IN PTR

Response
DNS

212.20.149.52.in-addr.arpa

Remote address:

8.8.8.8:53

Request

212.20.149.52.in-addr.arpa

IN PTR
DNS

171.39.242.20.in-addr.arpa

Remote address:

8.8.8.8:53

Request

171.39.242.20.in-addr.arpa

IN PTR

Response
DNS

20.49.80.91.in-addr.arpa

Remote address:

8.8.8.8:53

Request

20.49.80.91.in-addr.arpa

IN PTR

Response
DNS

85.49.80.91.in-addr.arpa

Remote address:

8.8.8.8:53

Request

85.49.80.91.in-addr.arpa

IN PTR

Response
DNS

22.49.80.91.in-addr.arpa

Remote address:

8.8.8.8:53

Request

22.49.80.91.in-addr.arpa

IN PTR

Response
DNS

30.243.111.52.in-addr.arpa

Remote address:

8.8.8.8:53

Request

30.243.111.52.in-addr.arpa

IN PTR

Response
DNS

26.173.189.20.in-addr.arpa

Remote address:

8.8.8.8:53

Request

26.173.189.20.in-addr.arpa

IN PTR

Response

185.215.113.206:80

3e6670b28e6a555a94c2b6dd9c5159bd2d0f0fd80d1c768f332b256cfd8a06e5.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

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

98.179.15.23.in-addr.arpa

dns

71 B
135 B
1
1

DNS Request

98.179.15.23.in-addr.arpa
8.8.8.8:53

69.31.126.40.in-addr.arpa

dns

71 B
157 B
1
1

DNS Request

69.31.126.40.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

13.86.106.20.in-addr.arpa

dns

71 B
157 B
1
1

DNS Request

13.86.106.20.in-addr.arpa
8.8.8.8:53

212.20.149.52.in-addr.arpa

dns

144 B
146 B
2
1

DNS Request

212.20.149.52.in-addr.arpa

DNS Request

212.20.149.52.in-addr.arpa
8.8.8.8:53

171.39.242.20.in-addr.arpa

dns

72 B
158 B
1
1

DNS Request

171.39.242.20.in-addr.arpa
8.8.8.8:53

20.49.80.91.in-addr.arpa

dns

70 B
145 B
1
1

DNS Request

20.49.80.91.in-addr.arpa
8.8.8.8:53

85.49.80.91.in-addr.arpa

dns

70 B
145 B
1
1

DNS Request

85.49.80.91.in-addr.arpa
8.8.8.8:53

22.49.80.91.in-addr.arpa

dns

70 B
145 B
1
1

DNS Request

22.49.80.91.in-addr.arpa
8.8.8.8:53

30.243.111.52.in-addr.arpa

dns

72 B
158 B
1
1

DNS Request

30.243.111.52.in-addr.arpa
8.8.8.8:53

26.173.189.20.in-addr.arpa

dns

72 B
158 B
1
1

DNS Request

26.173.189.20.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

Replay Monitor

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Downloads

memory/3504-0-0x00000000002F0000-0x0000000000975000-memory.dmp

Filesize
6.5MB

Download
memory/3504-1-0x0000000077E74000-0x0000000077E76000-memory.dmp

Filesize
8KB

Download
memory/3504-2-0x00000000002F1000-0x0000000000308000-memory.dmp

Filesize
92KB

Download
memory/3504-3-0x00000000002F0000-0x0000000000975000-memory.dmp

Filesize
6.5MB

Download
memory/3504-4-0x00000000002F0000-0x0000000000975000-memory.dmp

Filesize
6.5MB

Download
memory/3504-5-0x00000000002F0000-0x0000000000975000-memory.dmp

Filesize
6.5MB

Download
memory/3504-6-0x00000000002F0000-0x0000000000975000-memory.dmp

Filesize
6.5MB

Download
memory/3504-7-0x00000000002F0000-0x0000000000975000-memory.dmp

Filesize
6.5MB

Download
memory/3504-8-0x00000000002F0000-0x0000000000975000-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

DNS Request

DNS Request

DNS Request

MITRE ATT&CK Enterprise v15

Replay Monitor

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