masslogger | 44ed394e2f57716a9184cdf1c497331279c82bd5d3f9c544bb1bbe19f7df86c5

Analysis

max time kernel
126s
max time network
144s
platform
windows7_x64
resource
win7-20220414-en
submitted
21-05-2022 00:35

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General

Target

21-7 air ??? AWB ??? ????.pdf.exe
Size

950KB
MD5

beb1f7f7ae08c302d5df6aece0ca2146
SHA1

a088d4600b3c9573c92968e412c973a2981708d6
SHA256

10eead56b5d7413b12b1fd1a4bf63dba2fa8995dad47d9a29577efd98264247a
SHA512

0313b31697d435b8f8a0ae8d17cac7026a39532ce06b9cbb20caa8b4a6f23bfe05646449bacb29b4276276ec3893a9c3e1d6c1594c74ea0319ed31ef74dcf486

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 32 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1500-61-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1500-62-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1500-63-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1500-64-0x00000000004A157E-mapping.dmp	family_masslogger
behavioral1/memory/1500-66-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1500-68-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1500-70-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1500-72-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1500-74-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1500-76-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1500-78-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1500-80-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1500-82-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1500-84-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1500-86-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1500-88-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1500-90-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1500-92-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1500-94-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1500-96-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1500-98-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1500-100-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1500-102-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1500-104-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1500-106-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1500-108-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1500-110-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1500-112-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1500-114-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1500-116-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1500-118-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1500-120-0x0000000000400000-0x00000000004A6000-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

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:

21-7 air ___ AWB ___ ____.pdf.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Control Panel\International\Geo\Nation	21-7 air ___ AWB ___ ____.pdf.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 15 IoCs

collection

Email Collection

T1114

Processes:

21-7 air ___ AWB ___ ____.pdf.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	21-7 air ___ AWB ___ ____.pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	21-7 air ___ AWB ___ ____.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	21-7 air ___ AWB ___ ____.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	21-7 air ___ AWB ___ ____.pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	21-7 air ___ AWB ___ ____.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	21-7 air ___ AWB ___ ____.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	21-7 air ___ AWB ___ ____.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	21-7 air ___ AWB ___ ____.pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	21-7 air ___ AWB ___ ____.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	21-7 air ___ AWB ___ ____.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	21-7 air ___ AWB ___ ____.pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	21-7 air ___ AWB ___ ____.pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	21-7 air ___ AWB ___ ____.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	21-7 air ___ AWB ___ ____.pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	21-7 air ___ AWB ___ ____.pdf.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:

21-7 air ___ AWB ___ ____.pdf.exe

description pid process target process

PID 780 set thread context of 1500 780 21-7 air ___ AWB ___ ____.pdf.exe 21-7 air ___ AWB ___ ____.pdf.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

21-7 air ___ AWB ___ ____.pdf.exe

pid process

1500 21-7 air ___ AWB ___ ____.pdf.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

21-7 air ___ AWB ___ ____.pdf.exe

pid process

1500 21-7 air ___ AWB ___ ____.pdf.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

21-7 air ___ AWB ___ ____.pdf.exe

description pid process

Token: SeDebugPrivilege 1500 21-7 air ___ AWB ___ ____.pdf.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

21-7 air ___ AWB ___ ____.pdf.exe

pid process

1500 21-7 air ___ AWB ___ ____.pdf.exe

flow	ioc
4	api.ipify.org

description	pid	process	target process
PID 780 set thread context of 1500	780	21-7 air ___ AWB ___ ____.pdf.exe	21-7 air ___ AWB ___ ____.pdf.exe

pid	process
1500	21-7 air ___ AWB ___ ____.pdf.exe

pid	process
1500	21-7 air ___ AWB ___ ____.pdf.exe

description	pid	process
Token: SeDebugPrivilege	1500	21-7 air ___ AWB ___ ____.pdf.exe

pid	process
1500	21-7 air ___ AWB ___ ____.pdf.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

21-7 air ___ AWB ___ ____.pdf.exe

description	pid	process	target process
PID 780 wrote to memory of 1500	780	21-7 air ___ AWB ___ ____.pdf.exe	21-7 air ___ AWB ___ ____.pdf.exe
PID 780 wrote to memory of 1500	780	21-7 air ___ AWB ___ ____.pdf.exe	21-7 air ___ AWB ___ ____.pdf.exe
PID 780 wrote to memory of 1500	780	21-7 air ___ AWB ___ ____.pdf.exe	21-7 air ___ AWB ___ ____.pdf.exe
PID 780 wrote to memory of 1500	780	21-7 air ___ AWB ___ ____.pdf.exe	21-7 air ___ AWB ___ ____.pdf.exe
PID 780 wrote to memory of 1500	780	21-7 air ___ AWB ___ ____.pdf.exe	21-7 air ___ AWB ___ ____.pdf.exe
PID 780 wrote to memory of 1500	780	21-7 air ___ AWB ___ ____.pdf.exe	21-7 air ___ AWB ___ ____.pdf.exe
PID 780 wrote to memory of 1500	780	21-7 air ___ AWB ___ ____.pdf.exe	21-7 air ___ AWB ___ ____.pdf.exe
PID 780 wrote to memory of 1500	780	21-7 air ___ AWB ___ ____.pdf.exe	21-7 air ___ AWB ___ ____.pdf.exe
PID 780 wrote to memory of 1500	780	21-7 air ___ AWB ___ ____.pdf.exe	21-7 air ___ AWB ___ ____.pdf.exe

outlook_office_path 1 IoCs

Processes:

21-7 air ___ AWB ___ ____.pdf.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	21-7 air ___ AWB ___ ____.pdf.exe

outlook_win_path 1 IoCs

Processes:

21-7 air ___ AWB ___ ____.pdf.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	21-7 air ___ AWB ___ ____.pdf.exe

C:\Users\Admin\AppData\Local\Temp\21-7 air ___ AWB ___ ____.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\21-7 air ___ AWB ___ ____.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:780

C:\Users\Admin\AppData\Local\Temp\21-7 air ___ AWB ___ ____.pdf.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:1500

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

Loading Replay Monitor...

Downloads

memory/780-54-0x0000000000A20000-0x0000000000B14000-memory.dmp

Filesize
976KB

Download
memory/780-55-0x0000000074E91000-0x0000000074E93000-memory.dmp

Filesize
8KB

Download
memory/780-56-0x0000000000210000-0x000000000021A000-memory.dmp

Filesize
40KB

Download
memory/780-57-0x0000000005030000-0x00000000050DE000-memory.dmp

Filesize
696KB

Download
memory/1500-58-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-59-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-61-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-62-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-63-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-64-0x00000000004A157E-mapping.dmp

Download
memory/1500-66-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-68-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-70-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-72-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-74-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-76-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-78-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-80-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-82-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-84-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-86-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-88-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-90-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-92-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-94-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-96-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-98-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-100-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-102-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-104-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-106-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-108-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-110-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-112-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-114-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-116-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-118-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-120-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1500-570-0x00000000046C0000-0x0000000004704000-memory.dmp

Filesize
272KB

Download