blustealer | f483db634b30a9f6bc88ff71dbddcf9f7b3fdca4de047386415da681b5e35685

General

Target

PEDIDO NOVIEMBRE_29-11-22.exe
Size

152KB
MD5

d0d391c303b24cbd513b9ebae7a6b129
SHA1

c157d3d7e445dc82b60c354f8f2e098b55c7f162
SHA256

f483db634b30a9f6bc88ff71dbddcf9f7b3fdca4de047386415da681b5e35685
SHA512

a490ea7260abd922cfc5b00c3b9b0b59e66ab34bd37a8e77650782b7943b40cbee28f0eb3a1317379fb30accbb6c6af1fc8511a961f243cffa80404fbb3aea48
SSDEEP

3072:E3rXF6PQysW7XnXifYO1FL7/52Df/vIAwtkBXf6DVqb:YXFvLWXIHfL7/52Df/ANkBXf6

Score

10^/10

blustealer stormkitty collection spyware stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5627356603:AAG-Mx0TbSHRRW6IwndrpX3VLZdhd6C-Zac/sendMessage?chat_id=5472437377

Signatures

BluStealer
A Modular information stealer written in Visual Basic.
stealer blustealer
StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty payload 1 IoCs

resource	yara_rule
behavioral2/memory/4416-142-0x0000000000DA0000-0x0000000000DBA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
15	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4568 set thread context of 1772	4568	PEDIDO NOVIEMBRE_29-11-22.exe	81
PID 1772 set thread context of 4416	1772	Regsvcs.exe	82

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\Identifier	AppLaunch.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	AppLaunch.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4568	PEDIDO NOVIEMBRE_29-11-22.exe
4568	PEDIDO NOVIEMBRE_29-11-22.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4568	PEDIDO NOVIEMBRE_29-11-22.exe
Token: SeDebugPrivilege	4416	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1772	Regsvcs.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 4568 wrote to memory of 1028	4568	PEDIDO NOVIEMBRE_29-11-22.exe	80
PID 4568 wrote to memory of 1028	4568	PEDIDO NOVIEMBRE_29-11-22.exe	80
PID 4568 wrote to memory of 1028	4568	PEDIDO NOVIEMBRE_29-11-22.exe	80
PID 4568 wrote to memory of 1772	4568	PEDIDO NOVIEMBRE_29-11-22.exe	81
PID 4568 wrote to memory of 1772	4568	PEDIDO NOVIEMBRE_29-11-22.exe	81
PID 4568 wrote to memory of 1772	4568	PEDIDO NOVIEMBRE_29-11-22.exe	81
PID 4568 wrote to memory of 1772	4568	PEDIDO NOVIEMBRE_29-11-22.exe	81
PID 4568 wrote to memory of 1772	4568	PEDIDO NOVIEMBRE_29-11-22.exe	81
PID 4568 wrote to memory of 1772	4568	PEDIDO NOVIEMBRE_29-11-22.exe	81
PID 4568 wrote to memory of 1772	4568	PEDIDO NOVIEMBRE_29-11-22.exe	81
PID 4568 wrote to memory of 1772	4568	PEDIDO NOVIEMBRE_29-11-22.exe	81
PID 1772 wrote to memory of 4416	1772	Regsvcs.exe	82
PID 1772 wrote to memory of 4416	1772	Regsvcs.exe	82
PID 1772 wrote to memory of 4416	1772	Regsvcs.exe	82
PID 1772 wrote to memory of 4416	1772	Regsvcs.exe	82
PID 1772 wrote to memory of 4416	1772	Regsvcs.exe	82

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\PEDIDO NOVIEMBRE_29-11-22.exe
"C:\Users\Admin\AppData\Local\Temp\PEDIDO NOVIEMBRE_29-11-22.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4568
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regsvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regsvcs.exe"
  2⤵
  PID:1028
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regsvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regsvcs.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1772
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    3⤵
    - Accesses Microsoft Outlook profiles
    - Checks processor information in registry
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:4416

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1772-133-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1772-136-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1772-140-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1772-145-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4416-142-0x0000000000DA0000-0x0000000000DBA000-memory.dmp

Filesize
104KB

Download
memory/4416-143-0x0000000005390000-0x00000000053F6000-memory.dmp

Filesize
408KB

Download
memory/4416-144-0x0000000005D00000-0x0000000005D9C000-memory.dmp

Filesize
624KB

Download
memory/4568-132-0x0000022DA2930000-0x0000022DA295C000-memory.dmp

Filesize
176KB

Download
memory/4568-138-0x00007FFC2EB10000-0x00007FFC2F5D1000-memory.dmp

Filesize
10.8MB

Download

Analysis

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