blustealer | af0c49cd5e2b41f27d460deb736e47c58009be3fcef52c8720926a0a6bdfc103

General

Target

af0c49cd5e2b41f27d460deb736e47c58009be3fcef52c8720926a0a6bdfc103.exe
Size

644KB
MD5

2291920ad0a80650cba8a6d8e62fca40
SHA1

f2f42f00f1c9337636f9615e0eebd38d86b46f14
SHA256

af0c49cd5e2b41f27d460deb736e47c58009be3fcef52c8720926a0a6bdfc103
SHA512

2c793123997b31f7ae8b94d4ffbb8d8e2fffbbd35da0f8f0b6f5e1c326a71cd0e4431c276ff2fc470f2f77d57343259f6b07036a2c6a0319958416ae53470245
SSDEEP

12288:D+cPxGu+EjNjdUeJ2IZWAtb5xgtk5Atl3vF9uMW9e3fdn:HGzExjOejXxYkKdN9ck1n

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/3148-141-0x0000000000F50000-0x0000000000F6A000-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\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
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\15.0\Outlook\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
18	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3404 set thread context of 4336	3404	af0c49cd5e2b41f27d460deb736e47c58009be3fcef52c8720926a0a6bdfc103.exe	88
PID 4336 set thread context of 3148	4336	aspnet_compiler.exe	89

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 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3148	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4336	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 3404 wrote to memory of 4336	3404	af0c49cd5e2b41f27d460deb736e47c58009be3fcef52c8720926a0a6bdfc103.exe	88
PID 3404 wrote to memory of 4336	3404	af0c49cd5e2b41f27d460deb736e47c58009be3fcef52c8720926a0a6bdfc103.exe	88
PID 3404 wrote to memory of 4336	3404	af0c49cd5e2b41f27d460deb736e47c58009be3fcef52c8720926a0a6bdfc103.exe	88
PID 3404 wrote to memory of 4336	3404	af0c49cd5e2b41f27d460deb736e47c58009be3fcef52c8720926a0a6bdfc103.exe	88
PID 3404 wrote to memory of 4336	3404	af0c49cd5e2b41f27d460deb736e47c58009be3fcef52c8720926a0a6bdfc103.exe	88
PID 3404 wrote to memory of 4336	3404	af0c49cd5e2b41f27d460deb736e47c58009be3fcef52c8720926a0a6bdfc103.exe	88
PID 3404 wrote to memory of 4336	3404	af0c49cd5e2b41f27d460deb736e47c58009be3fcef52c8720926a0a6bdfc103.exe	88
PID 3404 wrote to memory of 4336	3404	af0c49cd5e2b41f27d460deb736e47c58009be3fcef52c8720926a0a6bdfc103.exe	88
PID 4336 wrote to memory of 3148	4336	aspnet_compiler.exe	89
PID 4336 wrote to memory of 3148	4336	aspnet_compiler.exe	89
PID 4336 wrote to memory of 3148	4336	aspnet_compiler.exe	89
PID 4336 wrote to memory of 3148	4336	aspnet_compiler.exe	89
PID 4336 wrote to memory of 3148	4336	aspnet_compiler.exe	89

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\af0c49cd5e2b41f27d460deb736e47c58009be3fcef52c8720926a0a6bdfc103.exe
"C:\Users\Admin\AppData\Local\Temp\af0c49cd5e2b41f27d460deb736e47c58009be3fcef52c8720926a0a6bdfc103.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3404
- 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:4336
- - 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:3148

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

Loading Replay Monitor...

Downloads

memory/3148-141-0x0000000000F50000-0x0000000000F6A000-memory.dmp

Filesize
104KB

Download
memory/3148-142-0x0000000002E40000-0x0000000002EA6000-memory.dmp

Filesize
408KB

Download
memory/3148-143-0x0000000005D60000-0x0000000005DFC000-memory.dmp

Filesize
624KB

Download
memory/3404-132-0x0000000000860000-0x0000000000906000-memory.dmp

Filesize
664KB

Download
memory/4336-134-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4336-136-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4336-139-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4336-144-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download

Analysis

Sharing