masslogger | a0d80a5a4203d5855d8cd45a2c81b50d178ca4002c97c94a2268379992e6b16e

Analysis

max time kernel
91s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
20-04-2022 14:42

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General

Target

Consulta de productos.exe
Size

2.0MB
MD5

163f4507b66481d36fa511c0f056f20d
SHA1

30b2655b042043cea29b50ca9b418065b3223bdd
SHA256

8185bd02c507e6433d03c12e5f8b94b574d2f2ebb597e766563fd28295b5d681
SHA512

aab8a2bf8cd26e58e406a8497287f8c660e3489ea284e8f30d24093704e62c63b0bf82ec10fe9db130ec9d3a29680ebd23887d1c097b9c8473502d394017425f

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\781F780B4E\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.3.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.51 Location: United States OS: Microsoft Windows 10 Pro64bit CPU: Intel Core Processor (Broadwell) GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 4/20/2022 3:09:12 PM MassLogger Started: 4/20/2022 3:09:09 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe As Administrator: True

Extracted

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
Dmacdavid

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.

Processes:

yara_rule

masslogger_log_file
Executes dropped EXE 1 IoCs

Processes:

InstallUtil.exe

pid process

2356 InstallUtil.exe

yara_rule
masslogger_log_file

pid	process
2356	InstallUtil.exe

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

Processes:

InstallUtil.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	InstallUtil.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

Processes:

InstallUtil.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.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.

Processes:

flow ioc

20 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

Consulta de productos.exe

description pid process target process

PID 3048 set thread context of 2356 3048 Consulta de productos.exe InstallUtil.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

InstallUtil.exe

pid process

2356 InstallUtil.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Consulta de productos.exeInstallUtil.exe

pid process

3048 Consulta de productos.exe
3048 Consulta de productos.exe
3048 Consulta de productos.exe
2356 InstallUtil.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Consulta de productos.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 3048 Consulta de productos.exe
Token: SeDebugPrivilege 2356 InstallUtil.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

InstallUtil.exe

pid process

2356 InstallUtil.exe

flow	ioc
20	api.ipify.org

description	pid	process	target process
PID 3048 set thread context of 2356	3048	Consulta de productos.exe	InstallUtil.exe

pid	process
2356	InstallUtil.exe

pid	process
3048	Consulta de productos.exe
3048	Consulta de productos.exe
3048	Consulta de productos.exe
2356	InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	3048	Consulta de productos.exe
Token: SeDebugPrivilege	2356	InstallUtil.exe

pid	process
2356	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

Consulta de productos.exe

description	pid	process	target process
PID 3048 wrote to memory of 2356	3048	Consulta de productos.exe	InstallUtil.exe
PID 3048 wrote to memory of 2356	3048	Consulta de productos.exe	InstallUtil.exe
PID 3048 wrote to memory of 2356	3048	Consulta de productos.exe	InstallUtil.exe
PID 3048 wrote to memory of 2356	3048	Consulta de productos.exe	InstallUtil.exe
PID 3048 wrote to memory of 2356	3048	Consulta de productos.exe	InstallUtil.exe
PID 3048 wrote to memory of 2356	3048	Consulta de productos.exe	InstallUtil.exe
PID 3048 wrote to memory of 2356	3048	Consulta de productos.exe	InstallUtil.exe
PID 3048 wrote to memory of 2356	3048	Consulta de productos.exe	InstallUtil.exe

outlook_office_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\Consulta de productos.exe
"C:\Users\Admin\AppData\Local\Temp\Consulta de productos.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3048
- C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
  "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
  2⤵
  - Executes dropped EXE
  - Checks computer location settings
  - 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:2356

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

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\Temp\InstallUtil.exe

Filesize
41KB

MD5
5d4073b2eb6d217c19f2b22f21bf8d57

SHA1
f0209900fbf08d004b886a0b3ba33ea2b0bf9da8

SHA256
ac1a3f21fcc88f9cee7bf51581eafba24cc76c924f0821deb2afdf1080ddf3d3

SHA512
9ac94880684933ba3407cdc135abc3047543436567af14cd9269c4adc5a6535db7b867d6de0d6238a21b94e69f9890dbb5739155871a624520623a7e56872159

Download Submit
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe

Filesize
41KB

MD5
5d4073b2eb6d217c19f2b22f21bf8d57

SHA1
f0209900fbf08d004b886a0b3ba33ea2b0bf9da8

SHA256
ac1a3f21fcc88f9cee7bf51581eafba24cc76c924f0821deb2afdf1080ddf3d3

SHA512
9ac94880684933ba3407cdc135abc3047543436567af14cd9269c4adc5a6535db7b867d6de0d6238a21b94e69f9890dbb5739155871a624520623a7e56872159

Download Submit
memory/2356-167-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-135-0x0000000000000000-mapping.dmp

Download
memory/2356-647-0x0000000007DC0000-0x0000000007E5C000-memory.dmp

Filesize
624KB

Download
memory/2356-169-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-645-0x00000000061B0000-0x00000000061BA000-memory.dmp

Filesize
40KB

Download
memory/2356-644-0x0000000005DC0000-0x0000000005E26000-memory.dmp

Filesize
408KB

Download
memory/2356-139-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-141-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-143-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-145-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-147-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-149-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-151-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-153-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-155-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-171-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-159-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-161-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-163-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-165-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-646-0x0000000007820000-0x0000000007870000-memory.dmp

Filesize
320KB

Download
memory/2356-203-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-157-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-173-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-175-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-177-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-179-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-181-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-183-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-185-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-187-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-191-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-189-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-193-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-195-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-197-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-199-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/2356-201-0x0000000000900000-0x0000000000A46000-memory.dmp

Filesize
1.3MB

Download
memory/3048-133-0x0000000004F20000-0x0000000004F42000-memory.dmp

Filesize
136KB

Download
memory/3048-131-0x00000000053F0000-0x0000000005994000-memory.dmp

Filesize
5.6MB

Download
memory/3048-132-0x0000000004ED0000-0x0000000004F14000-memory.dmp

Filesize
272KB

Download
memory/3048-130-0x0000000000350000-0x0000000000550000-memory.dmp

Filesize
2.0MB

Download
memory/3048-134-0x0000000005130000-0x00000000051C2000-memory.dmp

Filesize
584KB

Download