masslogger | d43a19e0d55377fea3acc08b3e9e1f7a964bf08da5b11c500217e184bd7cf79a

Analysis

max time kernel
85s
max time network
132s
platform
windows7_x64
resource
win7-20220414-en
submitted
21-05-2022 02:04

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General

Target

order.exe
Size

1.2MB
MD5

58d3c173379511c75ea7fba7cb554521
SHA1

350cd0da5171af6a94e2c15c69aebef33d0bcfd8
SHA256

607f9c79b58c26613b4a6ebc78efe524acbe436c984a09aeff7d40cb109eff8d
SHA512

1e767e10a6fc1cdc0654d905c529667d4276fb08a32417b861c35d5269df57753b4794fd4b03f9d2cf4fa6246bff7be7b7bb435b38fb1b918450251cb78f19b6

Score

10^/10

masslogger collection ransomware rezer0 spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\AEF946DCB4\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.5.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.50 Location: United States OS: Microsoft Windows 7 Ultimate 64bit CPU: Intel Core Processor (Broadwell) GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 5:11:52 AM MassLogger Started: 5/21/2022 5:11:26 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\order.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

Extracted

Credentials

Protocol: smtp
Host:
smtp.gmail.com
Port:
587
Username:
[email protected]
Password:
Pureheaven56

Signatures

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

MassLogger Main Payload 33 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1688-60-0x0000000008070000-0x0000000008120000-memory.dmp	family_masslogger
behavioral1/memory/1792-64-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1792-65-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1792-66-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1792-67-0x00000000004AB4EE-mapping.dmp	family_masslogger
behavioral1/memory/1792-69-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1792-71-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1792-73-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1792-75-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1792-77-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1792-79-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1792-81-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1792-83-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1792-85-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1792-87-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1792-89-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1792-91-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1792-93-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1792-95-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1792-97-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1792-99-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1792-101-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1792-103-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1792-105-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1792-107-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1792-109-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1792-111-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1792-113-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1792-115-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1792-117-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1792-119-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1792-121-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1792-123-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger

MassLogger log file 1 IoCs
Detects a log file produced by MassLogger.

Processes:

yara_rule

masslogger_log_file

yara_rule
masslogger_log_file

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1688-57-0x00000000051C0000-0x0000000005278000-memory.dmp	rezer0

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:

order.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\International\Geo\Nation order.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

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\International\Geo\Nation	order.exe

Accesses Microsoft Outlook profiles 1 TTPs 15 IoCs

collection

Email Collection

T1114

Processes:

order.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	order.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	order.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	order.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	order.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	order.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	order.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	order.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	order.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	order.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	order.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	order.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	order.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	order.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	order.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	order.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

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

Processes:

order.exe

description pid process target process

PID 1688 set thread context of 1792 1688 order.exe order.exe
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

Processes:

schtasks.exe

pid process

1220 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

order.exe

pid process

1792 order.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

order.exeorder.exe

pid process

1688 order.exe
1792 order.exe
1792 order.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

order.exeorder.exe

description pid process

Token: SeDebugPrivilege 1688 order.exe
Token: SeDebugPrivilege 1792 order.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

order.exe

pid process

1792 order.exe

flow	ioc
4	api.ipify.org

description	pid	process	target process
PID 1688 set thread context of 1792	1688	order.exe	order.exe

pid	process
1220	schtasks.exe

pid	process
1792	order.exe

pid	process
1688	order.exe
1792	order.exe
1792	order.exe

description	pid	process
Token: SeDebugPrivilege	1688	order.exe
Token: SeDebugPrivilege	1792	order.exe

pid	process
1792	order.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

order.exe

description	pid	process	target process
PID 1688 wrote to memory of 1220	1688	order.exe	schtasks.exe
PID 1688 wrote to memory of 1220	1688	order.exe	schtasks.exe
PID 1688 wrote to memory of 1220	1688	order.exe	schtasks.exe
PID 1688 wrote to memory of 1220	1688	order.exe	schtasks.exe
PID 1688 wrote to memory of 1792	1688	order.exe	order.exe
PID 1688 wrote to memory of 1792	1688	order.exe	order.exe
PID 1688 wrote to memory of 1792	1688	order.exe	order.exe
PID 1688 wrote to memory of 1792	1688	order.exe	order.exe
PID 1688 wrote to memory of 1792	1688	order.exe	order.exe
PID 1688 wrote to memory of 1792	1688	order.exe	order.exe
PID 1688 wrote to memory of 1792	1688	order.exe	order.exe
PID 1688 wrote to memory of 1792	1688	order.exe	order.exe
PID 1688 wrote to memory of 1792	1688	order.exe	order.exe

outlook_office_path 1 IoCs

Processes:

order.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	order.exe

outlook_win_path 1 IoCs

Processes:

order.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	order.exe

C:\Users\Admin\AppData\Local\Temp\order.exe
"C:\Users\Admin\AppData\Local\Temp\order.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1688
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rUrNVd" /XML "C:\Users\Admin\AppData\Local\Temp\tmp55EE.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1220
- C:\Users\Admin\AppData\Local\Temp\order.exe
  "{path}"
  2⤵
  - 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:1792

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\Temp\tmp55EE.tmp

Filesize
1KB

MD5
561cf94e4146ff3f2ddb6468333616b2

SHA1
4a2733ed642d1274287578470e7e14a4a5818a2e

SHA256
6f36c64b5cef5e568cab1e621e973267e7204a52e653868dd778abfad170a283

SHA512
d829eec5197a4bd9f9d65649859d7df2e0508a6c7fd55a1ff6f35ab56b0de970060ae46536c821225acd6866676d89464d539be009b819667bb909101b77b927

Download Submit
memory/1220-58-0x0000000000000000-mapping.dmp

Download
memory/1688-54-0x0000000000E10000-0x0000000000F4E000-memory.dmp

Filesize
1.2MB

Download
memory/1688-55-0x0000000075E31000-0x0000000075E33000-memory.dmp

Filesize
8KB

Download
memory/1688-56-0x00000000004D0000-0x00000000004D8000-memory.dmp

Filesize
32KB

Download
memory/1688-57-0x00000000051C0000-0x0000000005278000-memory.dmp

Filesize
736KB

Download
memory/1688-60-0x0000000008070000-0x0000000008120000-memory.dmp

Filesize
704KB

Download
memory/1792-87-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-95-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-64-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-65-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-66-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-67-0x00000000004AB4EE-mapping.dmp

Download
memory/1792-69-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-71-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-73-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-75-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-77-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-79-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-81-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-83-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-85-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-61-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-89-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-91-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-93-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-62-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-97-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-99-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-101-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-103-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-105-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-107-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-109-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-111-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-113-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-115-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-117-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-119-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-121-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-123-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1792-580-0x00000000003C0000-0x0000000000404000-memory.dmp

Filesize
272KB

Download
memory/1792-582-0x0000000004F95000-0x0000000004FA6000-memory.dmp

Filesize
68KB

Download
memory/1792-583-0x0000000000E00000-0x0000000000E14000-memory.dmp

Filesize
80KB

Download