masslogger | 0fac7b9a59c7c72d5bb3c3230fcf8f46ab65eeb9da43d8ec0438d726b1187739

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
26-05-2024 23:00

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General

Target

EFS QUOTATION LISTS #09172020.pdf.scr
Size

1019KB
MD5

98539cd496816d584ee3b71988fa3df8
SHA1

85b9f77eccb7f413b79216c6d5cd6f0dc2bb878c
SHA256

1dbbc7c4da00acd7ae17d3b37197cd559412d779024efd6fff22e35852a33619
SHA512

d30921f8034e94e43e9a4991353aa2109a0ce73cf22ded41218892c0ec9f42a832a8802339c1bf2a31539dae8cd8ee817695c0cbd7ce6307daa15eb19b140685
SSDEEP

12288:vbLu0mLFPuv2zv1gVzYx8DC3+qZWvQvcA3s6V9oqodtT6QNKXQwhUPe/+ykONWxM:vfup52VnmdYYvF3LoP6QNKXQyC2LS

Score

10^/10

masslogger collection spyware stealer

Malware Config

Signatures

MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
stealer spyware masslogger

MassLogger Main payload 5 IoCs

resource	yara_rule
behavioral1/memory/1576-15-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral1/memory/1576-20-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral1/memory/1576-23-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral1/memory/1576-18-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral1/memory/1576-12-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Control Panel\International\Geo\Nation	EFS QUOTATION LISTS #09172020.pdf.scr

Deletes itself 1 IoCs

pid	Process
1132	powershell.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 35 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EFS QUOTATION LISTS #09172020.pdf.scr
Key queried	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	EFS QUOTATION LISTS #09172020.pdf.scr
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EFS QUOTATION LISTS #09172020.pdf.scr
Key queried	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EFS QUOTATION LISTS #09172020.pdf.scr
Key queried	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EFS QUOTATION LISTS #09172020.pdf.scr
Key queried	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EFS QUOTATION LISTS #09172020.pdf.scr
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	EFS QUOTATION LISTS #09172020.pdf.scr
Key queried	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	EFS QUOTATION LISTS #09172020.pdf.scr
Key queried	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EFS QUOTATION LISTS #09172020.pdf.scr
Key queried	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	EFS QUOTATION LISTS #09172020.pdf.scr
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	EFS QUOTATION LISTS #09172020.pdf.scr
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EFS QUOTATION LISTS #09172020.pdf.scr
Key opened	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EFS QUOTATION LISTS #09172020.pdf.scr
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	EFS QUOTATION LISTS #09172020.pdf.scr
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	EFS QUOTATION LISTS #09172020.pdf.scr
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EFS QUOTATION LISTS #09172020.pdf.scr
Key queried	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EFS QUOTATION LISTS #09172020.pdf.scr
Key opened	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EFS QUOTATION LISTS #09172020.pdf.scr
Key queried	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	EFS QUOTATION LISTS #09172020.pdf.scr
Key queried	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EFS QUOTATION LISTS #09172020.pdf.scr
Key queried	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	EFS QUOTATION LISTS #09172020.pdf.scr
Key queried	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EFS QUOTATION LISTS #09172020.pdf.scr
Key queried	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	EFS QUOTATION LISTS #09172020.pdf.scr
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	EFS QUOTATION LISTS #09172020.pdf.scr
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EFS QUOTATION LISTS #09172020.pdf.scr
Key opened	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EFS QUOTATION LISTS #09172020.pdf.scr
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	EFS QUOTATION LISTS #09172020.pdf.scr
Key opened	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EFS QUOTATION LISTS #09172020.pdf.scr
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	EFS QUOTATION LISTS #09172020.pdf.scr
Key opened	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EFS QUOTATION LISTS #09172020.pdf.scr
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EFS QUOTATION LISTS #09172020.pdf.scr
Key opened	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EFS QUOTATION LISTS #09172020.pdf.scr
Key opened	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EFS QUOTATION LISTS #09172020.pdf.scr
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EFS QUOTATION LISTS #09172020.pdf.scr
Key queried	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	EFS QUOTATION LISTS #09172020.pdf.scr

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
2	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1644 set thread context of 1576	1644	EFS QUOTATION LISTS #09172020.pdf.scr	30

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1576	EFS QUOTATION LISTS #09172020.pdf.scr

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1576	EFS QUOTATION LISTS #09172020.pdf.scr
1576	EFS QUOTATION LISTS #09172020.pdf.scr
1576	EFS QUOTATION LISTS #09172020.pdf.scr
1576	EFS QUOTATION LISTS #09172020.pdf.scr
1576	EFS QUOTATION LISTS #09172020.pdf.scr
1576	EFS QUOTATION LISTS #09172020.pdf.scr
1576	EFS QUOTATION LISTS #09172020.pdf.scr
1132	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1576	EFS QUOTATION LISTS #09172020.pdf.scr
Token: SeDebugPrivilege	1132	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1576	EFS QUOTATION LISTS #09172020.pdf.scr

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1644 wrote to memory of 1576	1644	EFS QUOTATION LISTS #09172020.pdf.scr	30
PID 1644 wrote to memory of 1576	1644	EFS QUOTATION LISTS #09172020.pdf.scr	30
PID 1644 wrote to memory of 1576	1644	EFS QUOTATION LISTS #09172020.pdf.scr	30
PID 1644 wrote to memory of 1576	1644	EFS QUOTATION LISTS #09172020.pdf.scr	30
PID 1644 wrote to memory of 1576	1644	EFS QUOTATION LISTS #09172020.pdf.scr	30
PID 1644 wrote to memory of 1576	1644	EFS QUOTATION LISTS #09172020.pdf.scr	30
PID 1644 wrote to memory of 1576	1644	EFS QUOTATION LISTS #09172020.pdf.scr	30
PID 1644 wrote to memory of 1576	1644	EFS QUOTATION LISTS #09172020.pdf.scr	30
PID 1644 wrote to memory of 1576	1644	EFS QUOTATION LISTS #09172020.pdf.scr	30
PID 1576 wrote to memory of 1132	1576	EFS QUOTATION LISTS #09172020.pdf.scr	32
PID 1576 wrote to memory of 1132	1576	EFS QUOTATION LISTS #09172020.pdf.scr	32
PID 1576 wrote to memory of 1132	1576	EFS QUOTATION LISTS #09172020.pdf.scr	32
PID 1576 wrote to memory of 1132	1576	EFS QUOTATION LISTS #09172020.pdf.scr	32

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EFS QUOTATION LISTS #09172020.pdf.scr

outlook_win_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	EFS QUOTATION LISTS #09172020.pdf.scr

C:\Users\Admin\AppData\Local\Temp\EFS QUOTATION LISTS #09172020.pdf.scr
"C:\Users\Admin\AppData\Local\Temp\EFS QUOTATION LISTS #09172020.pdf.scr" /S
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1644
- C:\Users\Admin\AppData\Local\Temp\EFS QUOTATION LISTS #09172020.pdf.scr
  "C:\Users\Admin\AppData\Local\Temp\EFS QUOTATION LISTS #09172020.pdf.scr"
  2⤵
  - Checks computer location settings
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  - outlook_win_path
  PID:1576
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "powershell" Start-Sleep -Seconds 2; Remove-Item -path 'C:\Users\Admin\AppData\Local\Temp\EFS QUOTATION LISTS #09172020.pdf.scr'
    3⤵
    - Deletes itself
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1132

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1576-12-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1576-18-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1576-20-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1576-15-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1576-27-0x0000000074950000-0x000000007503E000-memory.dmp

Filesize
6.9MB

Download
memory/1576-24-0x0000000074950000-0x000000007503E000-memory.dmp

Filesize
6.9MB

Download
memory/1576-26-0x0000000074950000-0x000000007503E000-memory.dmp

Filesize
6.9MB

Download
memory/1576-11-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1576-23-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1576-10-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1576-28-0x0000000074950000-0x000000007503E000-memory.dmp

Filesize
6.9MB

Download
memory/1576-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1644-6-0x00000000055D0000-0x000000000567A000-memory.dmp

Filesize
680KB

Download
memory/1644-8-0x0000000004F80000-0x000000000500A000-memory.dmp

Filesize
552KB

Download
memory/1644-3-0x0000000074950000-0x000000007503E000-memory.dmp

Filesize
6.9MB

Download
memory/1644-0-0x000000007495E000-0x000000007495F000-memory.dmp

Filesize
4KB

Download
memory/1644-7-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/1644-1-0x00000000012B0000-0x00000000013B4000-memory.dmp

Filesize
1.0MB

Download
memory/1644-25-0x0000000074950000-0x000000007503E000-memory.dmp

Filesize
6.9MB

Download
memory/1644-5-0x0000000074950000-0x000000007503E000-memory.dmp

Filesize
6.9MB

Download
memory/1644-4-0x000000007495E000-0x000000007495F000-memory.dmp

Filesize
4KB

Download
memory/1644-2-0x0000000000280000-0x0000000000298000-memory.dmp

Filesize
96KB

Download