Malware Analysis Report

2024-10-18 21:25

Sample ID 211104-m9cwnsdeeq
Target doc3723636638837373344.r00
SHA256 aae211073286323b13bb03ad59c97ad540a46b7f89eb68f172d3358b5f055350
Tags
a310logger blustealer collection spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

aae211073286323b13bb03ad59c97ad540a46b7f89eb68f172d3358b5f055350

Threat Level: Known bad

The file doc3723636638837373344.r00 was found to be: Known bad.

Malicious Activity Summary

a310logger blustealer collection spyware stealer

BluStealer

A310logger

A310logger Executable

Executes dropped EXE

Reads local data of messenger clients

Loads dropped DLL

Reads user/profile data of web browsers

Accesses Microsoft Outlook profiles

Suspicious use of SetThreadContext

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

outlook_win_path

Creates scheduled task(s)

Suspicious behavior: EnumeratesProcesses

outlook_office_path

Suspicious use of SetWindowsHookEx

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2021-11-04 11:09

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-11-04 11:09

Reported

2021-11-04 11:12

Platform

win7-en-20211014

Max time kernel

122s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe"

Signatures

A310logger

stealer spyware a310logger

BluStealer

stealer blustealer

A310logger Executable

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe N/A

Reads local data of messenger clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1764 set thread context of 1120 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1764 wrote to memory of 1280 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Windows\SysWOW64\schtasks.exe
PID 1764 wrote to memory of 1280 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Windows\SysWOW64\schtasks.exe
PID 1764 wrote to memory of 1280 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Windows\SysWOW64\schtasks.exe
PID 1764 wrote to memory of 1280 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Windows\SysWOW64\schtasks.exe
PID 1764 wrote to memory of 1556 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 1764 wrote to memory of 1556 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 1764 wrote to memory of 1556 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 1764 wrote to memory of 1556 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 1764 wrote to memory of 1120 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 1764 wrote to memory of 1120 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 1764 wrote to memory of 1120 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 1764 wrote to memory of 1120 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 1764 wrote to memory of 1120 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 1764 wrote to memory of 1120 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 1764 wrote to memory of 1120 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 1764 wrote to memory of 1120 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 1764 wrote to memory of 1120 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 1120 wrote to memory of 1148 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe
PID 1120 wrote to memory of 1148 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe
PID 1120 wrote to memory of 1148 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe
PID 1120 wrote to memory of 1148 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe

"C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe"

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ARXXSy" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA8DD.tmp"

C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe

"C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe"

C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe

"C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe"

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 mail.yekamuhendislik.com udp
TR 89.252.134.35:587 mail.yekamuhendislik.com tcp

Files

memory/1764-55-0x00000000000F0000-0x00000000000F1000-memory.dmp

memory/1764-57-0x0000000075B71000-0x0000000075B73000-memory.dmp

memory/1764-58-0x0000000004EB0000-0x0000000004EB1000-memory.dmp

memory/1764-59-0x00000000003A0000-0x00000000003A6000-memory.dmp

memory/1764-60-0x0000000004EF0000-0x0000000004F69000-memory.dmp

memory/1280-61-0x0000000000000000-mapping.dmp

memory/1120-62-0x0000000000400000-0x0000000000456000-memory.dmp

memory/1120-63-0x0000000000400000-0x0000000000456000-memory.dmp

memory/1120-64-0x0000000000400000-0x0000000000456000-memory.dmp

memory/1120-66-0x0000000000400000-0x0000000000456000-memory.dmp

memory/1120-67-0x0000000000401B9C-mapping.dmp

memory/1120-68-0x0000000000090000-0x0000000000096000-memory.dmp

memory/1120-69-0x0000000000090000-0x000000000009A000-memory.dmp

memory/1120-71-0x0000000000400000-0x0000000000456000-memory.dmp

\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe

MD5 91b41651e6e9ab352805c6d35a297d08
SHA1 11b8eaa7b7941461bc952b11ec3f07d25dcd1c2e
SHA256 0872abe29cc9231cdded3a44e02a7ea17f09cf2ac2bdbd7077065858829c3723
SHA512 b0b0d73f6ac7b6e9b39db0fa58931873143f6559c3b8d3db2d82d453045f75da94f3236b6c6c5200b52af6cacc038565eb2e9c6a834608dac0b0e8bb45b1e892

memory/1148-73-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe

MD5 91b41651e6e9ab352805c6d35a297d08
SHA1 11b8eaa7b7941461bc952b11ec3f07d25dcd1c2e
SHA256 0872abe29cc9231cdded3a44e02a7ea17f09cf2ac2bdbd7077065858829c3723
SHA512 b0b0d73f6ac7b6e9b39db0fa58931873143f6559c3b8d3db2d82d453045f75da94f3236b6c6c5200b52af6cacc038565eb2e9c6a834608dac0b0e8bb45b1e892

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe

MD5 91b41651e6e9ab352805c6d35a297d08
SHA1 11b8eaa7b7941461bc952b11ec3f07d25dcd1c2e
SHA256 0872abe29cc9231cdded3a44e02a7ea17f09cf2ac2bdbd7077065858829c3723
SHA512 b0b0d73f6ac7b6e9b39db0fa58931873143f6559c3b8d3db2d82d453045f75da94f3236b6c6c5200b52af6cacc038565eb2e9c6a834608dac0b0e8bb45b1e892

memory/1148-76-0x00000000003F0000-0x00000000003F1000-memory.dmp

memory/1148-78-0x000000001B150000-0x000000001B152000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2021-11-04 11:09

Reported

2021-11-04 11:12

Platform

win10-en-20210920

Max time kernel

43s

Max time network

57s

Command Line

"C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe"

Signatures

BluStealer

stealer blustealer

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3484 set thread context of 1536 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3484 wrote to memory of 3320 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Windows\SysWOW64\schtasks.exe
PID 3484 wrote to memory of 3320 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Windows\SysWOW64\schtasks.exe
PID 3484 wrote to memory of 3320 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Windows\SysWOW64\schtasks.exe
PID 3484 wrote to memory of 1536 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 3484 wrote to memory of 1536 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 3484 wrote to memory of 1536 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 3484 wrote to memory of 1536 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 3484 wrote to memory of 1536 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 3484 wrote to memory of 1536 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 3484 wrote to memory of 1536 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 3484 wrote to memory of 1536 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe

Processes

C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe

"C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe"

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ARXXSy" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7309.tmp"

C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe

"C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 sv.symcb.com udp
US 72.21.91.29:80 sv.symcb.com tcp

Files

memory/3484-115-0x0000000000540000-0x0000000000541000-memory.dmp

memory/3484-117-0x0000000005410000-0x0000000005411000-memory.dmp

memory/3484-118-0x0000000004E00000-0x0000000004E01000-memory.dmp

memory/3484-119-0x0000000004EA0000-0x0000000004EA1000-memory.dmp

memory/3484-120-0x0000000004F10000-0x000000000540E000-memory.dmp

memory/3484-121-0x0000000005010000-0x0000000005016000-memory.dmp

memory/3484-122-0x0000000005BB0000-0x0000000005BB1000-memory.dmp

memory/3484-123-0x0000000005D50000-0x0000000005DC9000-memory.dmp

memory/3320-124-0x0000000000000000-mapping.dmp

memory/1536-125-0x0000000000400000-0x0000000000456000-memory.dmp

memory/1536-126-0x0000000000401B9C-mapping.dmp