blustealer | d7cd5ce46ffb8abe6ee2cb0c2a9f6528d8121fb90bd4072e71cd901099885eb3

General

Target

TRANSFERIR COPIA_26-01-2023.exe
Size

124KB
MD5

6b6158281be7a4c6d27c26a19584a506
SHA1

642977b3de3a0d226859228dae11cb5d74ff0472
SHA256

d7cd5ce46ffb8abe6ee2cb0c2a9f6528d8121fb90bd4072e71cd901099885eb3
SHA512

ad9fda9a3a6f251f5bbfecf0a7b0aac322f9593e2ceca758aeaef42f651351ca0b77e346651f7b25cbfdb2d05b8fb1f7bb40e50bd7fbff78c4099c9905f8f506
SSDEEP

3072:hzVvRQ0DOtiT3VLK8LEN7m8lneeF1eujsqk7jx++eH6:hpJpOtQON7m8de6okkB++eH

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/3452-143-0x0000000000B00000-0x0000000000B1A000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\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
14	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1052 set thread context of 384	1052	TRANSFERIR COPIA_26-01-2023.exe	87
PID 384 set thread context of 3452	384	Caspol.exe	88

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 4 IoCs

pid	Process
1052	TRANSFERIR COPIA_26-01-2023.exe
1052	TRANSFERIR COPIA_26-01-2023.exe
1052	TRANSFERIR COPIA_26-01-2023.exe
1052	TRANSFERIR COPIA_26-01-2023.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1052	TRANSFERIR COPIA_26-01-2023.exe
Token: SeDebugPrivilege	3452	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
384	Caspol.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1052 wrote to memory of 3068	1052	TRANSFERIR COPIA_26-01-2023.exe	85
PID 1052 wrote to memory of 3068	1052	TRANSFERIR COPIA_26-01-2023.exe	85
PID 1052 wrote to memory of 3068	1052	TRANSFERIR COPIA_26-01-2023.exe	85
PID 1052 wrote to memory of 3556	1052	TRANSFERIR COPIA_26-01-2023.exe	86
PID 1052 wrote to memory of 3556	1052	TRANSFERIR COPIA_26-01-2023.exe	86
PID 1052 wrote to memory of 3556	1052	TRANSFERIR COPIA_26-01-2023.exe	86
PID 1052 wrote to memory of 384	1052	TRANSFERIR COPIA_26-01-2023.exe	87
PID 1052 wrote to memory of 384	1052	TRANSFERIR COPIA_26-01-2023.exe	87
PID 1052 wrote to memory of 384	1052	TRANSFERIR COPIA_26-01-2023.exe	87
PID 1052 wrote to memory of 384	1052	TRANSFERIR COPIA_26-01-2023.exe	87
PID 1052 wrote to memory of 384	1052	TRANSFERIR COPIA_26-01-2023.exe	87
PID 1052 wrote to memory of 384	1052	TRANSFERIR COPIA_26-01-2023.exe	87
PID 1052 wrote to memory of 384	1052	TRANSFERIR COPIA_26-01-2023.exe	87
PID 1052 wrote to memory of 384	1052	TRANSFERIR COPIA_26-01-2023.exe	87
PID 384 wrote to memory of 3452	384	Caspol.exe	88
PID 384 wrote to memory of 3452	384	Caspol.exe	88
PID 384 wrote to memory of 3452	384	Caspol.exe	88
PID 384 wrote to memory of 3452	384	Caspol.exe	88
PID 384 wrote to memory of 3452	384	Caspol.exe	88

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\TRANSFERIR COPIA_26-01-2023.exe
"C:\Users\Admin\AppData\Local\Temp\TRANSFERIR COPIA_26-01-2023.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1052
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"
  2⤵
  PID:3068
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"
  2⤵
  PID:3556
- 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:384
- - 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:3452

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/384-136-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/384-138-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/384-141-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/384-146-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1052-132-0x00000000008E0000-0x0000000000908000-memory.dmp

Filesize
160KB

Download
memory/3452-143-0x0000000000B00000-0x0000000000B1A000-memory.dmp

Filesize
104KB

Download
memory/3452-144-0x0000000005000000-0x0000000005066000-memory.dmp

Filesize
408KB

Download
memory/3452-145-0x0000000005A10000-0x0000000005AAC000-memory.dmp

Filesize
624KB

Download

Analysis

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