blustealer | 1488d2bb17e28439602d2b7e015761b040a36cc2951f01ec2afd6a9cb4e788e7

General

Target

SecuriteInfo.com.Win32.PWSX-gen.22405.29639.exe
Size

317KB
MD5

01525569bc9b96eaa3d400c27fc48e65
SHA1

89ee100955aa324c06adfdae26eed42774229c37
SHA256

1488d2bb17e28439602d2b7e015761b040a36cc2951f01ec2afd6a9cb4e788e7
SHA512

b3f2764b612fa4dacde63eea186cb5490b437ff098f5dca61ff9b3cc93f09d74d6d2991030777a80b1c177c6fe6f24f4600ed7d39c42e5f3916480ecbf94906d
SSDEEP

3072:pFbx2IW7tu1b5x/QC4czk575dVXJNEPtXYh9985AqaWZtrmOm71hEbaFSkjiRrPh:pX6tuZvxwEBO9e5AqZxa+

Score

10^/10

blustealer stormkitty collection spyware stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5567605125:AAF5a-eiGBTc0sQavelBpgmYIQTDu4ndQ8/sendMessage?chat_id=5442288318

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/4256-141-0x0000000001370000-0x000000000138A000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\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
14	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4632 set thread context of 4604	4632	SecuriteInfo.com.Win32.PWSX-gen.22405.29639.exe	80
PID 4604 set thread context of 4256	4604	aspnet_compiler.exe	81

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	4256	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4604	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4632 wrote to memory of 4604	4632	SecuriteInfo.com.Win32.PWSX-gen.22405.29639.exe	80
PID 4632 wrote to memory of 4604	4632	SecuriteInfo.com.Win32.PWSX-gen.22405.29639.exe	80
PID 4632 wrote to memory of 4604	4632	SecuriteInfo.com.Win32.PWSX-gen.22405.29639.exe	80
PID 4632 wrote to memory of 4604	4632	SecuriteInfo.com.Win32.PWSX-gen.22405.29639.exe	80
PID 4632 wrote to memory of 4604	4632	SecuriteInfo.com.Win32.PWSX-gen.22405.29639.exe	80
PID 4632 wrote to memory of 4604	4632	SecuriteInfo.com.Win32.PWSX-gen.22405.29639.exe	80
PID 4632 wrote to memory of 4604	4632	SecuriteInfo.com.Win32.PWSX-gen.22405.29639.exe	80
PID 4632 wrote to memory of 4604	4632	SecuriteInfo.com.Win32.PWSX-gen.22405.29639.exe	80
PID 4604 wrote to memory of 4256	4604	aspnet_compiler.exe	81
PID 4604 wrote to memory of 4256	4604	aspnet_compiler.exe	81
PID 4604 wrote to memory of 4256	4604	aspnet_compiler.exe	81
PID 4604 wrote to memory of 4256	4604	aspnet_compiler.exe	81
PID 4604 wrote to memory of 4256	4604	aspnet_compiler.exe	81

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.22405.29639.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.22405.29639.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4632
- 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:4604
- - 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:4256

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/4256-141-0x0000000001370000-0x000000000138A000-memory.dmp

Filesize
104KB

Download
memory/4256-142-0x00000000057D0000-0x0000000005836000-memory.dmp

Filesize
408KB

Download
memory/4256-143-0x00000000062A0000-0x000000000633C000-memory.dmp

Filesize
624KB

Download
memory/4604-134-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/4604-136-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/4604-139-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/4604-144-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/4632-132-0x0000000000A20000-0x0000000000A72000-memory.dmp

Filesize
328KB

Download

Analysis

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