blustealer | 62b221918e58a6ed42b227995a0ca2d92e47ace80da38e6954cf65ee9396272c

General

Target

ORDEN DE SEPTIEMBRE.exe
Size

784KB
MD5

470a87e0ba0977d5df9a7e9faeae6ab3
SHA1

b5d6b4605df995f204f9186086cf6b5632149c7f
SHA256

1123cbc345a98da038d82263722b95bc339ee76ed9cd21e45ffd01e9387ce6c9
SHA512

c5dd8a748b3fe8d27138f4d92f05688b68f94f9085c8d823599eeec7a2e0393683f01ce4e3332677cf0065964434a3e1774af40d3de3a46e150be6f6d2ca6820
SSDEEP

6144:kW+4XDBkyFhI8OZiLsyJ0If3+Nm3cxgU/ZVr2H6KihG:x+4lkyFhI8OZiIyJ1us3cxgU/ZZ2Pz

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/4184-142-0x0000000000500000-0x000000000051A000-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
10	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4824 set thread context of 3928	4824	ORDEN DE SEPTIEMBRE.exe	80
PID 3928 set thread context of 4184	3928	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 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	4184	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3928	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4824 wrote to memory of 3928	4824	ORDEN DE SEPTIEMBRE.exe	80
PID 4824 wrote to memory of 3928	4824	ORDEN DE SEPTIEMBRE.exe	80
PID 4824 wrote to memory of 3928	4824	ORDEN DE SEPTIEMBRE.exe	80
PID 4824 wrote to memory of 3928	4824	ORDEN DE SEPTIEMBRE.exe	80
PID 4824 wrote to memory of 3928	4824	ORDEN DE SEPTIEMBRE.exe	80
PID 4824 wrote to memory of 3928	4824	ORDEN DE SEPTIEMBRE.exe	80
PID 4824 wrote to memory of 3928	4824	ORDEN DE SEPTIEMBRE.exe	80
PID 4824 wrote to memory of 3928	4824	ORDEN DE SEPTIEMBRE.exe	80
PID 3928 wrote to memory of 4184	3928	aspnet_compiler.exe	81
PID 3928 wrote to memory of 4184	3928	aspnet_compiler.exe	81
PID 3928 wrote to memory of 4184	3928	aspnet_compiler.exe	81
PID 3928 wrote to memory of 4184	3928	aspnet_compiler.exe	81
PID 3928 wrote to memory of 4184	3928	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\ORDEN DE SEPTIEMBRE.exe
"C:\Users\Admin\AppData\Local\Temp\ORDEN DE SEPTIEMBRE.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4824
- 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:3928
- - 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:4184

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/3928-133-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3928-136-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3928-140-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3928-145-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4184-142-0x0000000000500000-0x000000000051A000-memory.dmp

Filesize
104KB

Download
memory/4184-143-0x00000000049D0000-0x0000000004A36000-memory.dmp

Filesize
408KB

Download
memory/4184-144-0x0000000005320000-0x00000000053BC000-memory.dmp

Filesize
624KB

Download
memory/4824-132-0x0000000000310000-0x00000000003D6000-memory.dmp

Filesize
792KB

Download
memory/4824-138-0x00007FF970940000-0x00007FF971401000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing