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 4 IoCs

resource	yara_rule
behavioral1/memory/984-69-0x00000000001F0000-0x000000000020A000-memory.dmp	family_stormkitty
behavioral1/memory/984-70-0x0000000000204F6E-mapping.dmp	family_stormkitty
behavioral1/memory/984-72-0x00000000001F0000-0x000000000020A000-memory.dmp	family_stormkitty
behavioral1/memory/984-74-0x00000000001F0000-0x000000000020A000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\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
3	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1416 set thread context of 1556	1416	150 adet iKMiB-İstanbul siparişi.exe	26
PID 1556 set thread context of 984	1556	aspnet_compiler.exe	27

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	984	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1556	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1416 wrote to memory of 1556	1416	150 adet iKMiB-İstanbul siparişi.exe	26
PID 1416 wrote to memory of 1556	1416	150 adet iKMiB-İstanbul siparişi.exe	26
PID 1416 wrote to memory of 1556	1416	150 adet iKMiB-İstanbul siparişi.exe	26
PID 1416 wrote to memory of 1556	1416	150 adet iKMiB-İstanbul siparişi.exe	26
PID 1416 wrote to memory of 1556	1416	150 adet iKMiB-İstanbul siparişi.exe	26
PID 1416 wrote to memory of 1556	1416	150 adet iKMiB-İstanbul siparişi.exe	26
PID 1416 wrote to memory of 1556	1416	150 adet iKMiB-İstanbul siparişi.exe	26
PID 1416 wrote to memory of 1556	1416	150 adet iKMiB-İstanbul siparişi.exe	26
PID 1416 wrote to memory of 1556	1416	150 adet iKMiB-İstanbul siparişi.exe	26
PID 1556 wrote to memory of 984	1556	aspnet_compiler.exe	27
PID 1556 wrote to memory of 984	1556	aspnet_compiler.exe	27
PID 1556 wrote to memory of 984	1556	aspnet_compiler.exe	27
PID 1556 wrote to memory of 984	1556	aspnet_compiler.exe	27
PID 1556 wrote to memory of 984	1556	aspnet_compiler.exe	27
PID 1556 wrote to memory of 984	1556	aspnet_compiler.exe	27
PID 1556 wrote to memory of 984	1556	aspnet_compiler.exe	27
PID 1556 wrote to memory of 984	1556	aspnet_compiler.exe	27
PID 1556 wrote to memory of 984	1556	aspnet_compiler.exe	27

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\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:1416
- 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:1556
- - 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:984

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/984-67-0x00000000001F0000-0x000000000020A000-memory.dmp

Filesize
104KB

Download
memory/984-74-0x00000000001F0000-0x000000000020A000-memory.dmp

Filesize
104KB

Download
memory/984-72-0x00000000001F0000-0x000000000020A000-memory.dmp

Filesize
104KB

Download
memory/984-69-0x00000000001F0000-0x000000000020A000-memory.dmp

Filesize
104KB

Download
memory/1416-54-0x0000000000B90000-0x0000000000C60000-memory.dmp

Filesize
832KB

Download
memory/1556-58-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/1556-66-0x0000000075E81000-0x0000000075E83000-memory.dmp

Filesize
8KB

Download
memory/1556-63-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/1556-60-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/1556-56-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/1556-55-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/1556-76-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/1556-77-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download

Analysis

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