blustealer | 077c6dc697fe099f49f24e345aa6dff6ede9be899e28906f856111b5ce364b14

General

Target

150 adet iKMiB-İstanbul siparişi.exe
Size

816KB
MD5

199618b5fb4cce3992ee9c29885e8207
SHA1

3360fbe47c82290b6dca52895e6b7ecb456e74bc
SHA256

077c6dc697fe099f49f24e345aa6dff6ede9be899e28906f856111b5ce364b14
SHA512

5e6c9a42302d232aed6787bc6dba1c1d1c3919c004e3cc3072696caca10b39a03f79dd1dd9526caaf10a2996ea66111254efe4e0800f573e74019ce5adbe48e5
SSDEEP

24576:qK3rbKyIHJaK2QP/Do01q+h+i05rYDgaCuGxN:x3rbKjEGPZqi+rCgaCuK

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/4668-141-0x0000000000D70000-0x0000000000D8A000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\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 1556 set thread context of 5052	1556	150 adet iKMiB-İstanbul siparişi.exe	83
PID 5052 set thread context of 4668	5052	aspnet_compiler.exe	86

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	4668	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5052	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1556 wrote to memory of 5052	1556	150 adet iKMiB-İstanbul siparişi.exe	83
PID 1556 wrote to memory of 5052	1556	150 adet iKMiB-İstanbul siparişi.exe	83
PID 1556 wrote to memory of 5052	1556	150 adet iKMiB-İstanbul siparişi.exe	83
PID 1556 wrote to memory of 5052	1556	150 adet iKMiB-İstanbul siparişi.exe	83
PID 1556 wrote to memory of 5052	1556	150 adet iKMiB-İstanbul siparişi.exe	83
PID 1556 wrote to memory of 5052	1556	150 adet iKMiB-İstanbul siparişi.exe	83
PID 1556 wrote to memory of 5052	1556	150 adet iKMiB-İstanbul siparişi.exe	83
PID 1556 wrote to memory of 5052	1556	150 adet iKMiB-İstanbul siparişi.exe	83
PID 5052 wrote to memory of 4668	5052	aspnet_compiler.exe	86
PID 5052 wrote to memory of 4668	5052	aspnet_compiler.exe	86
PID 5052 wrote to memory of 4668	5052	aspnet_compiler.exe	86
PID 5052 wrote to memory of 4668	5052	aspnet_compiler.exe	86
PID 5052 wrote to memory of 4668	5052	aspnet_compiler.exe	86

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\150 adet iKMiB-İstanbul siparişi.exe
"C:\Users\Admin\AppData\Local\Temp\150 adet iKMiB-İstanbul siparişi.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1556
- 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:5052
- - 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:4668

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/1556-132-0x00000000006C0000-0x0000000000790000-memory.dmp

Filesize
832KB

Download
memory/4668-141-0x0000000000D70000-0x0000000000D8A000-memory.dmp

Filesize
104KB

Download
memory/4668-142-0x00000000054A0000-0x0000000005506000-memory.dmp

Filesize
408KB

Download
memory/4668-143-0x0000000005F80000-0x000000000601C000-memory.dmp

Filesize
624KB

Download
memory/5052-134-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/5052-136-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/5052-139-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/5052-144-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download

Analysis

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