blustealer | 06a16b27c0fb73721a8e914688491abab539ea56fbe8df580fa91b22a0c8afec

General

Target

SecuriteInfo.com.Win32.PWSX-gen.3137.exe
Size

166KB
MD5

74c571340a29f8b79e012e9d835ac426
SHA1

81401ab6f1e291774d5465750eaedac986d4dc3b
SHA256

06a16b27c0fb73721a8e914688491abab539ea56fbe8df580fa91b22a0c8afec
SHA512

c8593976fa0a77b0108e71796b17df72d0cbe82d91b7bf9d1c4bbebaeeb21827c7861b9d5b9a89bbf53ef2845acfdaac2461cd772e212cae2985dd2233425b18
SSDEEP

3072:ep8xfXO3mVO6ipX6PN6BrjZy7EZRgA3NAR8MrDgeLdj8bKrOHm:k8xfQmVtipX6VWDHCRhXFdoO6G

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 4 IoCs

resource	yara_rule
behavioral1/memory/1936-72-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/1936-73-0x00000000000A4F6E-mapping.dmp	family_stormkitty
behavioral1/memory/1936-75-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/1936-77-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\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
3	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1956 set thread context of 1520	1956	SecuriteInfo.com.Win32.PWSX-gen.3137.exe	28
PID 1520 set thread context of 1936	1520	aspnet_compiler.exe	29

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 behavior: EnumeratesProcesses 1 IoCs

pid	Process
1956	SecuriteInfo.com.Win32.PWSX-gen.3137.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1956	SecuriteInfo.com.Win32.PWSX-gen.3137.exe
Token: SeDebugPrivilege	1936	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1520	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 1956 wrote to memory of 1236	1956	SecuriteInfo.com.Win32.PWSX-gen.3137.exe	27
PID 1956 wrote to memory of 1236	1956	SecuriteInfo.com.Win32.PWSX-gen.3137.exe	27
PID 1956 wrote to memory of 1236	1956	SecuriteInfo.com.Win32.PWSX-gen.3137.exe	27
PID 1956 wrote to memory of 1236	1956	SecuriteInfo.com.Win32.PWSX-gen.3137.exe	27
PID 1956 wrote to memory of 1520	1956	SecuriteInfo.com.Win32.PWSX-gen.3137.exe	28
PID 1956 wrote to memory of 1520	1956	SecuriteInfo.com.Win32.PWSX-gen.3137.exe	28
PID 1956 wrote to memory of 1520	1956	SecuriteInfo.com.Win32.PWSX-gen.3137.exe	28
PID 1956 wrote to memory of 1520	1956	SecuriteInfo.com.Win32.PWSX-gen.3137.exe	28
PID 1956 wrote to memory of 1520	1956	SecuriteInfo.com.Win32.PWSX-gen.3137.exe	28
PID 1956 wrote to memory of 1520	1956	SecuriteInfo.com.Win32.PWSX-gen.3137.exe	28
PID 1956 wrote to memory of 1520	1956	SecuriteInfo.com.Win32.PWSX-gen.3137.exe	28
PID 1956 wrote to memory of 1520	1956	SecuriteInfo.com.Win32.PWSX-gen.3137.exe	28
PID 1956 wrote to memory of 1520	1956	SecuriteInfo.com.Win32.PWSX-gen.3137.exe	28
PID 1520 wrote to memory of 1936	1520	aspnet_compiler.exe	29
PID 1520 wrote to memory of 1936	1520	aspnet_compiler.exe	29
PID 1520 wrote to memory of 1936	1520	aspnet_compiler.exe	29
PID 1520 wrote to memory of 1936	1520	aspnet_compiler.exe	29
PID 1520 wrote to memory of 1936	1520	aspnet_compiler.exe	29
PID 1520 wrote to memory of 1936	1520	aspnet_compiler.exe	29
PID 1520 wrote to memory of 1936	1520	aspnet_compiler.exe	29
PID 1520 wrote to memory of 1936	1520	aspnet_compiler.exe	29
PID 1520 wrote to memory of 1936	1520	aspnet_compiler.exe	29

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.3137.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.3137.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1956
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:1236
- 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:1520
- - 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:1936

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/1520-79-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1520-66-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1520-69-0x0000000075141000-0x0000000075143000-memory.dmp

Filesize
8KB

Download
memory/1520-59-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1520-61-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1520-58-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1520-63-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1520-80-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1936-70-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1936-72-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1936-75-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1936-77-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1956-57-0x00000000003E0000-0x00000000003E8000-memory.dmp

Filesize
32KB

Download
memory/1956-55-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1956-56-0x00000000003D0000-0x00000000003DC000-memory.dmp

Filesize
48KB

Download
memory/1956-54-0x0000000000DF0000-0x0000000000E1E000-memory.dmp

Filesize
184KB

Download

Analysis

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