blustealer | 1cdb944451011cd42459c89cf3442f33d0800f1078eeb62c30afaa73d9ce165d

General

Target

DICIEMBRE PEDIDO.exe
Size

666KB
MD5

7189393da2e6ba6d9008e6959de09a82
SHA1

900d1fcd0a06b23d91dff10cc5d4393f6bac611f
SHA256

1cdb944451011cd42459c89cf3442f33d0800f1078eeb62c30afaa73d9ce165d
SHA512

86477d0e35322f848a5175561d4d3d4344719bd7b84bf836fba51378f5076345a8a951e5896aebd5c421d748679a7ef914b3df416b6506593c5c03d3fa4f6494
SSDEEP

12288:WkvdHPnkwZ3RPHJYlOdq+014c6V5S69JTpLB1fyGzeR1ezLdH7J/T8:WkvdvkwZ3RPHJr3jpLzaGCez5N8

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/4960-142-0x0000000000DA0000-0x0000000000DBA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\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
17	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1536 set thread context of 4100	1536	DICIEMBRE PEDIDO.exe	80
PID 4100 set thread context of 4960	4100	Regsvcs.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	4960	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4100	Regsvcs.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1536 wrote to memory of 4100	1536	DICIEMBRE PEDIDO.exe	80
PID 1536 wrote to memory of 4100	1536	DICIEMBRE PEDIDO.exe	80
PID 1536 wrote to memory of 4100	1536	DICIEMBRE PEDIDO.exe	80
PID 1536 wrote to memory of 4100	1536	DICIEMBRE PEDIDO.exe	80
PID 1536 wrote to memory of 4100	1536	DICIEMBRE PEDIDO.exe	80
PID 1536 wrote to memory of 4100	1536	DICIEMBRE PEDIDO.exe	80
PID 1536 wrote to memory of 4100	1536	DICIEMBRE PEDIDO.exe	80
PID 1536 wrote to memory of 4100	1536	DICIEMBRE PEDIDO.exe	80
PID 4100 wrote to memory of 4960	4100	Regsvcs.exe	81
PID 4100 wrote to memory of 4960	4100	Regsvcs.exe	81
PID 4100 wrote to memory of 4960	4100	Regsvcs.exe	81
PID 4100 wrote to memory of 4960	4100	Regsvcs.exe	81
PID 4100 wrote to memory of 4960	4100	Regsvcs.exe	81

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\DICIEMBRE PEDIDO.exe
"C:\Users\Admin\AppData\Local\Temp\DICIEMBRE PEDIDO.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1536
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regsvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regsvcs.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4100
- - 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:4960

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/1536-132-0x00000241B2D40000-0x00000241B2DEC000-memory.dmp

Filesize
688KB

Download
memory/1536-138-0x00007FFFC9CB0000-0x00007FFFCA771000-memory.dmp

Filesize
10.8MB

Download
memory/4100-133-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4100-136-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4100-140-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4100-145-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4960-142-0x0000000000DA0000-0x0000000000DBA000-memory.dmp

Filesize
104KB

Download
memory/4960-143-0x0000000005430000-0x0000000005496000-memory.dmp

Filesize
408KB

Download
memory/4960-144-0x0000000005E40000-0x0000000005EDC000-memory.dmp

Filesize
624KB

Download

Analysis

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