blustealer | bfa82ccb728c0ba5533bfc1093487edb9d06ab10080b915c64b759ca86b0d9f5

General

Target

SecuriteInfo.com.Win32.RATX-gen.6714.12779.exe
Size

83KB
MD5

437cdc9cd5aa816864a2d1f6ec30d23c
SHA1

23b7a7c73604cd3ad97ca77062f6fc1c8be67376
SHA256

bfa82ccb728c0ba5533bfc1093487edb9d06ab10080b915c64b759ca86b0d9f5
SHA512

9639697764ea464f5617d809bd6883bcc7e71349082665d41e80a63f23c5cb8a1a0d7d74019a33434bf32391b2f365778203a11102b83a8beb1a10586610b450
SSDEEP

1536:+QWI/CRcoIpDJM7ojtOTNH7zpga/eHUTQQQQQQQBdBgN6b5/2kWSC6WLr4uixPCb:xWIo4DJM7ojtOTNH7zpga/eHUTQQQQQ4

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/4808-141-0x0000000000960000-0x000000000097A000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\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
29	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4508 set thread context of 2604	4508	SecuriteInfo.com.Win32.RATX-gen.6714.12779.exe	83
PID 2604 set thread context of 4808	2604	aspnet_compiler.exe	88

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 use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4508	SecuriteInfo.com.Win32.RATX-gen.6714.12779.exe
Token: SeDebugPrivilege	4808	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2604	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4508 wrote to memory of 2604	4508	SecuriteInfo.com.Win32.RATX-gen.6714.12779.exe	83
PID 4508 wrote to memory of 2604	4508	SecuriteInfo.com.Win32.RATX-gen.6714.12779.exe	83
PID 4508 wrote to memory of 2604	4508	SecuriteInfo.com.Win32.RATX-gen.6714.12779.exe	83
PID 4508 wrote to memory of 2604	4508	SecuriteInfo.com.Win32.RATX-gen.6714.12779.exe	83
PID 4508 wrote to memory of 2604	4508	SecuriteInfo.com.Win32.RATX-gen.6714.12779.exe	83
PID 4508 wrote to memory of 2604	4508	SecuriteInfo.com.Win32.RATX-gen.6714.12779.exe	83
PID 4508 wrote to memory of 2604	4508	SecuriteInfo.com.Win32.RATX-gen.6714.12779.exe	83
PID 4508 wrote to memory of 2604	4508	SecuriteInfo.com.Win32.RATX-gen.6714.12779.exe	83
PID 2604 wrote to memory of 4808	2604	aspnet_compiler.exe	88
PID 2604 wrote to memory of 4808	2604	aspnet_compiler.exe	88
PID 2604 wrote to memory of 4808	2604	aspnet_compiler.exe	88
PID 2604 wrote to memory of 4808	2604	aspnet_compiler.exe	88
PID 2604 wrote to memory of 4808	2604	aspnet_compiler.exe	88

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.RATX-gen.6714.12779.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.RATX-gen.6714.12779.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4508
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2604
- - 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:4808

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/2604-134-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2604-136-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2604-139-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2604-143-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4508-132-0x00000000001A0000-0x00000000001BA000-memory.dmp

Filesize
104KB

Download
memory/4808-141-0x0000000000960000-0x000000000097A000-memory.dmp

Filesize
104KB

Download
memory/4808-142-0x0000000004DF0000-0x0000000004E56000-memory.dmp

Filesize
408KB

Download
memory/4808-144-0x0000000005650000-0x00000000056EC000-memory.dmp

Filesize
624KB

Download

Analysis

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