stealc | 88d0907e14aee76cdac846db8243f3461b06ec8769eda047497191d02e7bf887

Analysis

max time kernel
94s
max time network
144s
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, 16:32 UTC

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General

Target

88d0907e14aee76cdac846db8243f3461b06ec8769eda047497191d02e7bf887.exe
Size

1.7MB
MD5

bab9f5144b403a4ee4c4341878bba825
SHA1

d909a2a0a5a2f46bd23a0dfb053d513f08453dd1
SHA256

88d0907e14aee76cdac846db8243f3461b06ec8769eda047497191d02e7bf887
SHA512

54a0c368f533cb8fe38063a187ce0f4ac68cde5f7c259b7c756cc09095537c2d70b5d6365481d7db38d45a377c6abfd36a3fa7376bf9a5616dc96777af5b5d14
SSDEEP

24576:K+hr2AdAED9xMjtQwyuhSeOHJUS8lJpzVZa/4j10IFSh/ORTmjmSFvLrIJ12owdi:KudcjtOlgJhVXAUW4cowLO

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__	88d0907e14aee76cdac846db8243f3461b06ec8769eda047497191d02e7bf887.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	88d0907e14aee76cdac846db8243f3461b06ec8769eda047497191d02e7bf887.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	88d0907e14aee76cdac846db8243f3461b06ec8769eda047497191d02e7bf887.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-1-5-21-2437139445-1151884604-3026847218-1000\Software\Wine	88d0907e14aee76cdac846db8243f3461b06ec8769eda047497191d02e7bf887.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
1908	88d0907e14aee76cdac846db8243f3461b06ec8769eda047497191d02e7bf887.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4000	1908	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	88d0907e14aee76cdac846db8243f3461b06ec8769eda047497191d02e7bf887.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	88d0907e14aee76cdac846db8243f3461b06ec8769eda047497191d02e7bf887.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	88d0907e14aee76cdac846db8243f3461b06ec8769eda047497191d02e7bf887.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1908	88d0907e14aee76cdac846db8243f3461b06ec8769eda047497191d02e7bf887.exe
1908	88d0907e14aee76cdac846db8243f3461b06ec8769eda047497191d02e7bf887.exe
1908	88d0907e14aee76cdac846db8243f3461b06ec8769eda047497191d02e7bf887.exe
1908	88d0907e14aee76cdac846db8243f3461b06ec8769eda047497191d02e7bf887.exe

C:\Users\Admin\AppData\Local\Temp\88d0907e14aee76cdac846db8243f3461b06ec8769eda047497191d02e7bf887.exe
"C:\Users\Admin\AppData\Local\Temp\88d0907e14aee76cdac846db8243f3461b06ec8769eda047497191d02e7bf887.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:1908
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1908 -s 1484
  2⤵
  - Program crash
  PID:4000

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1908 -ip 1908
1⤵
PID:4032

Network

DNS

209.205.72.20.in-addr.arpa

Remote address:

8.8.8.8:53

Request

209.205.72.20.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

76.32.126.40.in-addr.arpa

Remote address:

8.8.8.8:53

Request

76.32.126.40.in-addr.arpa

IN PTR

Response
DNS

167.173.78.104.in-addr.arpa

Remote address:

8.8.8.8:53

Request

167.173.78.104.in-addr.arpa

IN PTR

Response

167.173.78.104.in-addr.arpa

IN PTR

a104-78-173-167deploystaticakamaitechnologiescom
DNS

196.249.167.52.in-addr.arpa

Remote address:

8.8.8.8:53

Request

196.249.167.52.in-addr.arpa

IN PTR

Response
DNS

232.168.11.51.in-addr.arpa

Remote address:

8.8.8.8:53

Request

232.168.11.51.in-addr.arpa

IN PTR

Response
DNS

50.23.12.20.in-addr.arpa

Remote address:

8.8.8.8:53

Request

50.23.12.20.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

96.252.19.2.in-addr.arpa

Remote address:

8.8.8.8:53

Request

96.252.19.2.in-addr.arpa

IN PTR

Response

96.252.19.2.in-addr.arpa

IN PTR

a2-19-252-96deploystaticakamaitechnologiescom
DNS

133.130.81.91.in-addr.arpa

Remote address:

8.8.8.8:53

Request

133.130.81.91.in-addr.arpa

IN PTR

Response
DNS

81.144.22.2.in-addr.arpa

Remote address:

8.8.8.8:53

Request

81.144.22.2.in-addr.arpa

IN PTR

Response

81.144.22.2.in-addr.arpa

IN PTR

a2-22-144-81deploystaticakamaitechnologiescom
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

185.215.113.206:80

88d0907e14aee76cdac846db8243f3461b06ec8769eda047497191d02e7bf887.exe

260 B
5

8.8.8.8:53

209.205.72.20.in-addr.arpa

dns

72 B
158 B
1
1

DNS Request

209.205.72.20.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

76.32.126.40.in-addr.arpa

dns

71 B
157 B
1
1

DNS Request

76.32.126.40.in-addr.arpa
8.8.8.8:53

167.173.78.104.in-addr.arpa

dns

73 B
139 B
1
1

DNS Request

167.173.78.104.in-addr.arpa
8.8.8.8:53

196.249.167.52.in-addr.arpa

dns

73 B
147 B
1
1

DNS Request

196.249.167.52.in-addr.arpa
8.8.8.8:53

232.168.11.51.in-addr.arpa

dns

72 B
158 B
1
1

DNS Request

232.168.11.51.in-addr.arpa
8.8.8.8:53

50.23.12.20.in-addr.arpa

dns

70 B
156 B
1
1

DNS Request

50.23.12.20.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

96.252.19.2.in-addr.arpa

dns

70 B
133 B
1
1

DNS Request

96.252.19.2.in-addr.arpa
8.8.8.8:53

133.130.81.91.in-addr.arpa

dns

72 B
147 B
1
1

DNS Request

133.130.81.91.in-addr.arpa
8.8.8.8:53

81.144.22.2.in-addr.arpa

dns

70 B
133 B
1
1

DNS Request

81.144.22.2.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

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/1908-0-0x0000000000D60000-0x00000000013F2000-memory.dmp

Filesize
6.6MB

Download
memory/1908-1-0x0000000077BD4000-0x0000000077BD6000-memory.dmp

Filesize
8KB

Download
memory/1908-2-0x0000000000D61000-0x0000000000D78000-memory.dmp

Filesize
92KB

Download
memory/1908-3-0x0000000000D60000-0x00000000013F2000-memory.dmp

Filesize
6.6MB

Download
memory/1908-4-0x0000000000D60000-0x00000000013F2000-memory.dmp

Filesize
6.6MB

Download
memory/1908-5-0x0000000000D60000-0x00000000013F2000-memory.dmp

Filesize
6.6MB

Download
memory/1908-6-0x0000000000D60000-0x00000000013F2000-memory.dmp

Filesize
6.6MB

Download
memory/1908-7-0x0000000000D60000-0x00000000013F2000-memory.dmp

Filesize
6.6MB

Download
memory/1908-8-0x0000000000D60000-0x00000000013F2000-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

DNS Request

DNS Request

DNS Request

MITRE ATT&CK Enterprise v15

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