Malware Analysis Report

2024-10-18 21:25

Sample ID 211104-lml1dsgbg2
Target doc3723636638837373344.exe
SHA256 2b6b5926ec7e5d6acea355bbd8f43a89850ed85e0c3739edfad2608ead9f1573
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

2b6b5926ec7e5d6acea355bbd8f43a89850ed85e0c3739edfad2608ead9f1573

Threat Level: Known bad

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

Malicious Activity Summary

a310logger blustealer collection spyware stealer

BluStealer

A310logger

A310logger Executable

Executes dropped EXE

Loads dropped DLL

Reads local data of messenger clients

Reads user/profile data of web browsers

Accesses Microsoft Outlook profiles

Suspicious use of SetThreadContext

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious use of SetWindowsHookEx

Suspicious behavior: EnumeratesProcesses

outlook_office_path

outlook_win_path

Creates scheduled task(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2021-11-04 09:39

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-11-04 09:39

Reported

2021-11-04 09:42

Platform

win7-en-20210920

Max time kernel

119s

Max time network

139s

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-1-5-21-3456797065-1076791440-4146276586-1000\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-1-5-21-3456797065-1076791440-4146276586-1000\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-1-5-21-3456797065-1076791440-4146276586-1000\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 968 set thread context of 848 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 968 wrote to memory of 1200 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Windows\SysWOW64\schtasks.exe
PID 968 wrote to memory of 1200 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Windows\SysWOW64\schtasks.exe
PID 968 wrote to memory of 1200 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Windows\SysWOW64\schtasks.exe
PID 968 wrote to memory of 1200 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Windows\SysWOW64\schtasks.exe
PID 968 wrote to memory of 848 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 968 wrote to memory of 848 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 968 wrote to memory of 848 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 968 wrote to memory of 848 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 968 wrote to memory of 848 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 968 wrote to memory of 848 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 968 wrote to memory of 848 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 968 wrote to memory of 848 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 968 wrote to memory of 848 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 848 wrote to memory of 1252 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe
PID 848 wrote to memory of 1252 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe
PID 848 wrote to memory of 1252 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe
PID 848 wrote to memory of 1252 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-1-5-21-3456797065-1076791440-4146276586-1000\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-1-5-21-3456797065-1076791440-4146276586-1000\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\tmpAE1A.tmp"

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/968-54-0x0000000001120000-0x0000000001121000-memory.dmp

memory/968-56-0x0000000074B91000-0x0000000074B93000-memory.dmp

memory/968-57-0x00000000003D0000-0x00000000003D6000-memory.dmp

memory/968-58-0x0000000004C60000-0x0000000004C61000-memory.dmp

memory/968-59-0x00000000055F0000-0x0000000005669000-memory.dmp

memory/1200-60-0x0000000000000000-mapping.dmp

memory/848-61-0x0000000000400000-0x0000000000456000-memory.dmp

memory/848-62-0x0000000000400000-0x0000000000456000-memory.dmp

memory/848-63-0x0000000000400000-0x0000000000456000-memory.dmp

memory/848-65-0x0000000000400000-0x0000000000456000-memory.dmp

memory/848-66-0x0000000000401B9C-mapping.dmp

memory/848-67-0x0000000000080000-0x0000000000086000-memory.dmp

memory/848-68-0x0000000000080000-0x000000000008A000-memory.dmp

memory/848-70-0x0000000000400000-0x0000000000456000-memory.dmp

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

MD5 91b41651e6e9ab352805c6d35a297d08
SHA1 11b8eaa7b7941461bc952b11ec3f07d25dcd1c2e
SHA256 0872abe29cc9231cdded3a44e02a7ea17f09cf2ac2bdbd7077065858829c3723
SHA512 b0b0d73f6ac7b6e9b39db0fa58931873143f6559c3b8d3db2d82d453045f75da94f3236b6c6c5200b52af6cacc038565eb2e9c6a834608dac0b0e8bb45b1e892

memory/1252-72-0x0000000000000000-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/1252-75-0x0000000000890000-0x0000000000891000-memory.dmp

memory/1252-77-0x000000001A800000-0x000000001A802000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2021-11-04 09:39

Reported

2021-11-04 09:41

Platform

win10-en-20211014

Max time kernel

150s

Max time network

122s

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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.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-1-5-21-941723256-3451054534-3089625102-1000\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-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\15.0\Outlook\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 2112 set thread context of 708 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 2112 wrote to memory of 1432 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Windows\SysWOW64\schtasks.exe
PID 2112 wrote to memory of 1432 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Windows\SysWOW64\schtasks.exe
PID 2112 wrote to memory of 1432 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Windows\SysWOW64\schtasks.exe
PID 2112 wrote to memory of 708 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 2112 wrote to memory of 708 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 2112 wrote to memory of 708 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 2112 wrote to memory of 708 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 2112 wrote to memory of 708 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 2112 wrote to memory of 708 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 2112 wrote to memory of 708 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 2112 wrote to memory of 708 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe
PID 708 wrote to memory of 1780 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe
PID 708 wrote to memory of 1780 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe
PID 708 wrote to memory of 1496 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Program Files (x86)\Windows Mail\WinMail.exe
PID 708 wrote to memory of 1496 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Program Files (x86)\Windows Mail\WinMail.exe
PID 708 wrote to memory of 1496 N/A C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe C:\Program Files (x86)\Windows Mail\WinMail.exe
PID 1496 wrote to memory of 1144 N/A C:\Program Files (x86)\Windows Mail\WinMail.exe C:\Program Files\Windows Mail\WinMail.exe
PID 1496 wrote to memory of 1144 N/A C:\Program Files (x86)\Windows Mail\WinMail.exe C:\Program Files\Windows Mail\WinMail.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\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-1-5-21-941723256-3451054534-3089625102-1000\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\tmp9CE8.tmp"

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

C:\Program Files (x86)\Windows Mail\WinMail.exe

"C:\Program Files (x86)\Windows Mail\WinMail" OCInstallUserConfigOE

C:\Program Files\Windows Mail\WinMail.exe

"C:\Program Files\Windows Mail\WinMail" OCInstallUserConfigOE

Network

Country Destination Domain Proto
IE 52.109.76.32:443 tcp
US 8.8.8.8:53 time.windows.com udp
NL 20.101.57.9:123 time.windows.com udp
US 8.8.8.8:53 mail.yekamuhendislik.com udp
TR 89.252.134.35:587 mail.yekamuhendislik.com tcp

Files

memory/2112-115-0x0000000000CC0000-0x0000000000CC1000-memory.dmp

memory/2112-117-0x0000000005C20000-0x0000000005C21000-memory.dmp

memory/2112-118-0x0000000005720000-0x0000000005721000-memory.dmp

memory/2112-119-0x0000000005620000-0x00000000056B2000-memory.dmp

memory/2112-120-0x00000000056D0000-0x00000000056D1000-memory.dmp

memory/2112-121-0x0000000005A30000-0x0000000005A36000-memory.dmp

memory/2112-122-0x0000000006440000-0x0000000006441000-memory.dmp

memory/2112-123-0x0000000006660000-0x00000000066D9000-memory.dmp

memory/1432-124-0x0000000000000000-mapping.dmp

memory/708-125-0x0000000000400000-0x0000000000456000-memory.dmp

memory/708-126-0x0000000000401B9C-mapping.dmp

memory/708-127-0x00000000014A0000-0x00000000014A6000-memory.dmp

memory/708-128-0x00000000014A0000-0x00000000014AA000-memory.dmp

memory/1780-129-0x0000000000000000-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/1780-132-0x0000000000360000-0x0000000000361000-memory.dmp

memory/1780-134-0x0000000000C70000-0x0000000000C72000-memory.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\credentials.txt

MD5 055c857272026583a61e1b5821c69a24
SHA1 ec39d34f16487682801dd2b319554cbed57feca4
SHA256 190db16bb64995e3bdea04b9e6fc1994dacfea3253a7559732205b1d41362b84
SHA512 d7833c4651683e95959107e05b07b60d2e963b9fbecd0106b329e2087d1dfc9aedb962b334e22b6b462699cbce86097d4d50ce5d1310ad098e3531efaa4e204b

memory/1496-136-0x0000000000000000-mapping.dmp

memory/1144-137-0x0000000000000000-mapping.dmp