stealc | 921a1eb60814bf8cf2d99870e3ecfae2c3129f4476267328f8012e77589374cb

Analysis

max time kernel
95s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26/12/2024, 07:07 UTC

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General

Target

921a1eb60814bf8cf2d99870e3ecfae2c3129f4476267328f8012e77589374cb.exe
Size

1.8MB
MD5

06fdcfeb366a23ab4d635e269a0fc181
SHA1

9d14d9158781d8b7a98acbe1038454ed1c647905
SHA256

921a1eb60814bf8cf2d99870e3ecfae2c3129f4476267328f8012e77589374cb
SHA512

ff15749f508b00cec309dbdd7b4ea514f71c85853e013b8fff408ed198418d28b43e0188144610b14e32780d5fd097d5a0eb435e8576e1f5e23e99438e306eaf
SSDEEP

49152:gpmFGY3ravO5n/dtOJPFfKswi4J+cjYJyRV:gpmFGY7llkVQ8CYJ2V

Score

10^/10

stealc stok discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

stok

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__	921a1eb60814bf8cf2d99870e3ecfae2c3129f4476267328f8012e77589374cb.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	921a1eb60814bf8cf2d99870e3ecfae2c3129f4476267328f8012e77589374cb.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	921a1eb60814bf8cf2d99870e3ecfae2c3129f4476267328f8012e77589374cb.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-1-5-21-4050598569-1597076380-177084960-1000\Software\Wine	921a1eb60814bf8cf2d99870e3ecfae2c3129f4476267328f8012e77589374cb.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
2872	921a1eb60814bf8cf2d99870e3ecfae2c3129f4476267328f8012e77589374cb.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2472	2872	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	921a1eb60814bf8cf2d99870e3ecfae2c3129f4476267328f8012e77589374cb.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	921a1eb60814bf8cf2d99870e3ecfae2c3129f4476267328f8012e77589374cb.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	921a1eb60814bf8cf2d99870e3ecfae2c3129f4476267328f8012e77589374cb.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2872	921a1eb60814bf8cf2d99870e3ecfae2c3129f4476267328f8012e77589374cb.exe
2872	921a1eb60814bf8cf2d99870e3ecfae2c3129f4476267328f8012e77589374cb.exe
2872	921a1eb60814bf8cf2d99870e3ecfae2c3129f4476267328f8012e77589374cb.exe
2872	921a1eb60814bf8cf2d99870e3ecfae2c3129f4476267328f8012e77589374cb.exe

C:\Users\Admin\AppData\Local\Temp\921a1eb60814bf8cf2d99870e3ecfae2c3129f4476267328f8012e77589374cb.exe
"C:\Users\Admin\AppData\Local\Temp\921a1eb60814bf8cf2d99870e3ecfae2c3129f4476267328f8012e77589374cb.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:2872
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2872 -s 1480
  2⤵
  - Program crash
  PID:2472

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2872 -ip 2872
1⤵
PID:3944

Network

DNS

58.55.71.13.in-addr.arpa

Remote address:

8.8.8.8:53

Request

58.55.71.13.in-addr.arpa

IN PTR

Response
DNS

74.32.126.40.in-addr.arpa

Remote address:

8.8.8.8:53

Request

74.32.126.40.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

95.221.229.192.in-addr.arpa

Remote address:

8.8.8.8:53

Request

95.221.229.192.in-addr.arpa

IN PTR

Response
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

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

197.87.175.4.in-addr.arpa

Remote address:

8.8.8.8:53

Request

197.87.175.4.in-addr.arpa

IN PTR

Response
DNS

206.23.85.13.in-addr.arpa

Remote address:

8.8.8.8:53

Request

206.23.85.13.in-addr.arpa

IN PTR

Response
DNS

83.210.23.2.in-addr.arpa

Remote address:

8.8.8.8:53

Request

83.210.23.2.in-addr.arpa

IN PTR

Response

83.210.23.2.in-addr.arpa

IN PTR

a2-23-210-83deploystaticakamaitechnologiescom
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

185.215.113.206:80

921a1eb60814bf8cf2d99870e3ecfae2c3129f4476267328f8012e77589374cb.exe

260 B
5

8.8.8.8:53

58.55.71.13.in-addr.arpa

dns

70 B
144 B
1
1

DNS Request

58.55.71.13.in-addr.arpa
8.8.8.8:53

74.32.126.40.in-addr.arpa

dns

71 B
157 B
1
1

DNS Request

74.32.126.40.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

95.221.229.192.in-addr.arpa

dns

73 B
144 B
1
1

DNS Request

95.221.229.192.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

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

197.87.175.4.in-addr.arpa

dns

71 B
157 B
1
1

DNS Request

197.87.175.4.in-addr.arpa
8.8.8.8:53

206.23.85.13.in-addr.arpa

dns

71 B
145 B
1
1

DNS Request

206.23.85.13.in-addr.arpa
8.8.8.8:53

83.210.23.2.in-addr.arpa

dns

70 B
133 B
1
1

DNS Request

83.210.23.2.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

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/2872-0-0x0000000000ED0000-0x000000000157A000-memory.dmp

Filesize
6.7MB

Download
memory/2872-1-0x00000000779D4000-0x00000000779D6000-memory.dmp

Filesize
8KB

Download
memory/2872-2-0x0000000000ED1000-0x0000000000EE8000-memory.dmp

Filesize
92KB

Download
memory/2872-3-0x0000000000ED0000-0x000000000157A000-memory.dmp

Filesize
6.7MB

Download
memory/2872-4-0x0000000000ED0000-0x000000000157A000-memory.dmp

Filesize
6.7MB

Download
memory/2872-5-0x0000000000ED0000-0x000000000157A000-memory.dmp

Filesize
6.7MB

Download
memory/2872-6-0x0000000000ED0000-0x000000000157A000-memory.dmp

Filesize
6.7MB

Download
memory/2872-7-0x0000000000ED0000-0x000000000157A000-memory.dmp

Filesize
6.7MB

Download
memory/2872-8-0x0000000000ED0000-0x000000000157A000-memory.dmp

Filesize
6.7MB

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

MITRE ATT&CK Enterprise v15

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Downloads

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