blustealer | 94f51a2fef39412213639a0070d29e97a2f744dfb9bfdb8f4dea5f46052e8dda

General

Target

PEDIDO020523.exe
Size

691KB
MD5

5c435b912ff7ec3f5b147ff71a9ccf6f
SHA1

da5f7424d4deef782190852f654b94dc9295afc1
SHA256

94f51a2fef39412213639a0070d29e97a2f744dfb9bfdb8f4dea5f46052e8dda
SHA512

f57fffc641ebcd51aed4cd9a0e28c3639e4d54b7fcb2f1dbbec7fbedfb58eb6b07c96cd7619c0533d620790d7d3d34c01099a9106ed9c91033f0634ca3e4ca94
SSDEEP

12288:OrgmRp27goQV8bpxYHsntfwNM2wzO5j1tAilPTz8vf2ZeozmpgUMnGWIUP9c:OrgmR18b4MNwNMFzuTdJTufIW7WdP9

Score

10^/10

blustealer redline stormkitty collection infostealer stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot6055609563:AAEfBlANuysNS3Feagncr0tioVRR2TOueCY/sendMessage?chat_id=6188873948

Signatures

BluStealer
A Modular information stealer written in Visual Basic.
stealer blustealer

Detects Redline Stealer samples 1 IoCs

This rule detects the presence of Redline Stealer samples based on their unique strings.

stealer

resource	yara_rule
behavioral2/memory/1856-142-0x0000000004AD0000-0x0000000004B36000-memory.dmp	redline_stealer

RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
infostealer redline
StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty payload 1 IoCs

resource	yara_rule
behavioral2/memory/1856-141-0x00000000001B0000-0x00000000001CA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

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
18	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1488 set thread context of 1480	1488	PEDIDO020523.exe	83
PID 1480 set thread context of 1856	1480	caspol.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	1856	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1480	caspol.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1488 wrote to memory of 1480	1488	PEDIDO020523.exe	83
PID 1488 wrote to memory of 1480	1488	PEDIDO020523.exe	83
PID 1488 wrote to memory of 1480	1488	PEDIDO020523.exe	83
PID 1488 wrote to memory of 1480	1488	PEDIDO020523.exe	83
PID 1488 wrote to memory of 1480	1488	PEDIDO020523.exe	83
PID 1488 wrote to memory of 1480	1488	PEDIDO020523.exe	83
PID 1488 wrote to memory of 1480	1488	PEDIDO020523.exe	83
PID 1488 wrote to memory of 1480	1488	PEDIDO020523.exe	83
PID 1480 wrote to memory of 1856	1480	caspol.exe	86
PID 1480 wrote to memory of 1856	1480	caspol.exe	86
PID 1480 wrote to memory of 1856	1480	caspol.exe	86
PID 1480 wrote to memory of 1856	1480	caspol.exe	86
PID 1480 wrote to memory of 1856	1480	caspol.exe	86

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\PEDIDO020523.exe
"C:\Users\Admin\AppData\Local\Temp\PEDIDO020523.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1488
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1480
- - 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:1856

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1480-135-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1480-138-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1480-146-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1488-133-0x0000026E5F270000-0x0000026E5F31E000-memory.dmp

Filesize
696KB

Download
memory/1488-134-0x0000026E79870000-0x0000026E79880000-memory.dmp

Filesize
64KB

Download
memory/1856-141-0x00000000001B0000-0x00000000001CA000-memory.dmp

Filesize
104KB

Download
memory/1856-142-0x0000000004AD0000-0x0000000004B36000-memory.dmp

Filesize
408KB

Download
memory/1856-143-0x0000000004A50000-0x0000000004A60000-memory.dmp

Filesize
64KB

Download
memory/1856-144-0x0000000005540000-0x00000000055DC000-memory.dmp

Filesize
624KB

Download

Analysis

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