blustealer | 026c4750a9677e154e7a18ab884470071eac51bf296d642ab7ce3b3f6ae6c4a3

General

Target

Updated Qutotaion Of Accesories____PDF.exe
Size

568KB
MD5

62d82f1dfb55dde5554c8b278a819ac9
SHA1

01e84f817807005f8d557d5320ddf9c366486620
SHA256

7b968e65480e574dbf93ace25a28a30ca1f7b77fa98aabe980435484c365efbc
SHA512

e1e629f928a1596325af166a50248794d0a4c8129442b25dd514a5ec6e9eef39c1d8867db6f85a72ffd3f0aa349c28af7ff70dd58027f8a04e15a8cb491a1d54

Score

10^/10

blustealer stormkitty collection stealer

Malware Config

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/2328-143-0x0000000000BF0000-0x0000000000C0A000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

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
45	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4936 set thread context of 1736	4936	Updated Qutotaion Of Accesories____PDF.exe	91
PID 1736 set thread context of 2328	1736	MSBuild.exe	92

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	AppLaunch.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	AppLaunch.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2328	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1736	MSBuild.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4936 wrote to memory of 1736	4936	Updated Qutotaion Of Accesories____PDF.exe	91
PID 4936 wrote to memory of 1736	4936	Updated Qutotaion Of Accesories____PDF.exe	91
PID 4936 wrote to memory of 1736	4936	Updated Qutotaion Of Accesories____PDF.exe	91
PID 4936 wrote to memory of 1736	4936	Updated Qutotaion Of Accesories____PDF.exe	91
PID 4936 wrote to memory of 1736	4936	Updated Qutotaion Of Accesories____PDF.exe	91
PID 4936 wrote to memory of 1736	4936	Updated Qutotaion Of Accesories____PDF.exe	91
PID 4936 wrote to memory of 1736	4936	Updated Qutotaion Of Accesories____PDF.exe	91
PID 4936 wrote to memory of 1736	4936	Updated Qutotaion Of Accesories____PDF.exe	91
PID 1736 wrote to memory of 2328	1736	MSBuild.exe	92
PID 1736 wrote to memory of 2328	1736	MSBuild.exe	92
PID 1736 wrote to memory of 2328	1736	MSBuild.exe	92
PID 1736 wrote to memory of 2328	1736	MSBuild.exe	92
PID 1736 wrote to memory of 2328	1736	MSBuild.exe	92

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\Updated Qutotaion Of Accesories____PDF.exe
"C:\Users\Admin\AppData\Local\Temp\Updated Qutotaion Of Accesories____PDF.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4936
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "{path}"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1736
- - 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:2328

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1736-145-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/1736-141-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/1736-138-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/1736-136-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/2328-143-0x0000000000BF0000-0x0000000000C0A000-memory.dmp

Filesize
104KB

Download
memory/2328-144-0x0000000005240000-0x00000000052A6000-memory.dmp

Filesize
408KB

Download
memory/4936-134-0x0000000005630000-0x000000000563A000-memory.dmp

Filesize
40KB

Download
memory/4936-133-0x0000000005750000-0x00000000057EC000-memory.dmp

Filesize
624KB

Download
memory/4936-132-0x00000000056B0000-0x0000000005742000-memory.dmp

Filesize
584KB

Download
memory/4936-130-0x0000000000BF0000-0x0000000000C84000-memory.dmp

Filesize
592KB

Download
memory/4936-131-0x0000000005BC0000-0x0000000006164000-memory.dmp

Filesize
5.6MB

Download

Analysis

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