masslogger | 4a2998327c65c07148f057e65326099b17a27159243bc8851e8aef90d12ec860

Analysis

max time kernel
130s
max time network
172s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
21-05-2022 12:25

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General

Target

PO.exe
Size

1.5MB
MD5

f512638b09983b315c24199bffae80cc
SHA1

f62de084522901915b43ce766bca6e3a0797cdf3
SHA256

f937bbe27c6d52452a121bc9aa320c26ae7eada7cadc9dda0fafc2c6b1bd5818
SHA512

a9566748c0c34168fafc88d2e3c1522fc7d1422266fa65b1beafbc82f45a88394d4ada16104b011e97f5e1396fa745d20bee185dc11447f4ad162e5c7ada48d8

Score

10^/10

masslogger collection spyware stealer upx

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.acproyectos.com
Port:
587
Username:
[email protected]
Password:
Falfal207@

Signatures

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

MassLogger log file 1 IoCs

Detects a log file produced by MassLogger.

yara_rule
masslogger_log_file

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000600000002315b-698.dat	acprotect

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x000600000002315b-698.dat	upx

Checks computer location settings 2 TTPs 2 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-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	PO.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	PO.exe

Loads dropped DLL 1 IoCs

pid	Process
2392	PO.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
T1081

Accesses Microsoft Outlook profiles 1 TTPs 18 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	PO.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	PO.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	PO.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	PO.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	PO.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	PO.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.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
29	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2324 set thread context of 2392	2324	PO.exe	81

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1696	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2392	PO.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2392	PO.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2392	PO.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2392	PO.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2324 wrote to memory of 1696	2324	PO.exe	79
PID 2324 wrote to memory of 1696	2324	PO.exe	79
PID 2324 wrote to memory of 1696	2324	PO.exe	79
PID 2324 wrote to memory of 2392	2324	PO.exe	81
PID 2324 wrote to memory of 2392	2324	PO.exe	81
PID 2324 wrote to memory of 2392	2324	PO.exe	81
PID 2324 wrote to memory of 2392	2324	PO.exe	81
PID 2324 wrote to memory of 2392	2324	PO.exe	81
PID 2324 wrote to memory of 2392	2324	PO.exe	81
PID 2324 wrote to memory of 2392	2324	PO.exe	81
PID 2324 wrote to memory of 2392	2324	PO.exe	81

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe

C:\Users\Admin\AppData\Local\Temp\PO.exe
"C:\Users\Admin\AppData\Local\Temp\PO.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2324
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\secOYgd" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE41B.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1696
- C:\Users\Admin\AppData\Local\Temp\PO.exe
  "C:\Users\Admin\AppData\Local\Temp\PO.exe"
  2⤵
  - Checks computer location settings
  - Loads dropped DLL
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:2392

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Credentials in Files

T1081

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PO.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\Costura\8E3603ED8A0381E02887C1DBBE921340\32\sqlite.interop.dll

Filesize
594KB

MD5
e81aeac387c5db32b7f9b07d15e788e0

SHA1
829be6eaf1cb0d82b2ddfc98272e1087f4a7a7c3

SHA256
44f31f99f048bfc5195937353b5207332e455bcd5a722bcfd32cacfd93f60f06

SHA512
cc6a96325a01c50c059706a1f4156f109e502ef9c0b0f5de209d1f52e7cc973cebc027f57ed988e9d1b8fca62746b60ee7430d608de95cdd0e5ac3cb61fbe32e

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE41B.tmp

Filesize
1KB

MD5
d78f7d3b94012e057a11df2326aedc6d

SHA1
17d13c7b3b946029916918d96f0a806fd0a70231

SHA256
5c34b13de3d0011d9ec82841ed09320584132c695438b4675332c91c02a2445f

SHA512
a6e8d9a8ec6f9271b5215f9da90ed15bf8811d45b07da0511d0d7ae9fdb8caf930980b520823f3d75c7a286093fe0aa7d10e781edd24ce92957262324a1e5e84

Download Submit
memory/2324-131-0x0000000005C60000-0x0000000006204000-memory.dmp

Filesize
5.6MB

Download
memory/2324-132-0x00000000055F0000-0x0000000005682000-memory.dmp

Filesize
584KB

Download
memory/2324-133-0x00000000056C0000-0x00000000056CA000-memory.dmp

Filesize
40KB

Download
memory/2324-134-0x0000000007B20000-0x0000000007BBC000-memory.dmp

Filesize
624KB

Download
memory/2324-130-0x0000000000AD0000-0x0000000000C5E000-memory.dmp

Filesize
1.6MB

Download
memory/2392-165-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-173-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-143-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-145-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-147-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-149-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-151-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-153-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-155-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-157-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-159-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-161-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-163-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-138-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-167-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-169-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-171-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-141-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-175-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-177-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-179-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-181-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-183-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-185-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-187-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-189-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-191-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-193-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-195-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-197-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-199-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-201-0x0000000000400000-0x000000000055E000-memory.dmp

Filesize
1.4MB

Download
memory/2392-699-0x00000000067F0000-0x0000000006856000-memory.dmp

Filesize
408KB

Download
memory/2392-700-0x0000000007940000-0x0000000007990000-memory.dmp

Filesize
320KB

Download