masslogger | e2757d60ab3f7e915054c0d0b29e4ccfacd11cec85861925a652df79f6ad467f

General

Target

New products_Inquiry00000000PDF.scr
Size

1007KB
MD5

4410f1e9106370721dd61b665e62db98
SHA1

eadff44552f64370b85c35abd736c39465fd833d
SHA256

6d8dbdf39f97cc1b6730d7eb7b2ac7f60ac2026e5ac33edb00093f1a87cfcf9a
SHA512

60ee671e4b37b6cc58ae8bd7351e475f8279827ea7eab30d463e4e201db99b9300b84d21b997ffc029e5cbbb6e4a5efcddb71dceb661a644a4a4227eb3009c67

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\0F48153F20\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.4.0 ################################################################# ### 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: 5/21/2022 1:47:06 AM MassLogger Started: 5/21/2022 1:47:00 AM Interval: 1 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\New products_Inquiry00000000PDF.scr MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

Extracted

Credentials

Protocol: smtp
Host:
mail.pirc-energy.co.uk
Port:
587
Username:
[email protected]
Password:
[}cHJZymZgEq

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
behavioral2/memory/4512-139-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-142-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-144-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-146-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-150-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-148-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-152-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-154-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-156-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-158-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-160-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-162-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-164-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-166-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-168-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-170-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-172-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-174-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-176-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-178-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-180-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-182-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-184-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-186-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-188-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-190-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-192-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-194-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-196-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-198-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-200-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral2/memory/4512-202-0x0000000000400000-0x00000000004A8000-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 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

New products_Inquiry00000000PDF.scrNew products_Inquiry00000000PDF.scr

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	New products_Inquiry00000000PDF.scr
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	New products_Inquiry00000000PDF.scr

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:

New products_Inquiry00000000PDF.scr

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New products_Inquiry00000000PDF.scr
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	New products_Inquiry00000000PDF.scr
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New products_Inquiry00000000PDF.scr
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	New products_Inquiry00000000PDF.scr
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	New products_Inquiry00000000PDF.scr
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New products_Inquiry00000000PDF.scr
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New products_Inquiry00000000PDF.scr
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	New products_Inquiry00000000PDF.scr
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	New products_Inquiry00000000PDF.scr
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New products_Inquiry00000000PDF.scr
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New products_Inquiry00000000PDF.scr
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New products_Inquiry00000000PDF.scr
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New products_Inquiry00000000PDF.scr
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New products_Inquiry00000000PDF.scr
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New products_Inquiry00000000PDF.scr
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New products_Inquiry00000000PDF.scr
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New products_Inquiry00000000PDF.scr
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	New products_Inquiry00000000PDF.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.

Processes:

flow ioc

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

Processes:

New products_Inquiry00000000PDF.scr

description pid process target process

PID 4668 set thread context of 4512 4668 New products_Inquiry00000000PDF.scr New products_Inquiry00000000PDF.scr
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

3960 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

New products_Inquiry00000000PDF.scrNew products_Inquiry00000000PDF.scr

pid process

4668 New products_Inquiry00000000PDF.scr
4668 New products_Inquiry00000000PDF.scr
4512 New products_Inquiry00000000PDF.scr
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

New products_Inquiry00000000PDF.scrNew products_Inquiry00000000PDF.scr

description pid process

Token: SeDebugPrivilege 4668 New products_Inquiry00000000PDF.scr
Token: SeDebugPrivilege 4512 New products_Inquiry00000000PDF.scr

flow	ioc
22	api.ipify.org

description	pid	process	target process
PID 4668 set thread context of 4512	4668	New products_Inquiry00000000PDF.scr	New products_Inquiry00000000PDF.scr

pid	process
3960	schtasks.exe

pid	process
4668	New products_Inquiry00000000PDF.scr
4668	New products_Inquiry00000000PDF.scr
4512	New products_Inquiry00000000PDF.scr

description	pid	process
Token: SeDebugPrivilege	4668	New products_Inquiry00000000PDF.scr
Token: SeDebugPrivilege	4512	New products_Inquiry00000000PDF.scr

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

New products_Inquiry00000000PDF.scr

description	pid	process	target process
PID 4668 wrote to memory of 3960	4668	New products_Inquiry00000000PDF.scr	schtasks.exe
PID 4668 wrote to memory of 3960	4668	New products_Inquiry00000000PDF.scr	schtasks.exe
PID 4668 wrote to memory of 3960	4668	New products_Inquiry00000000PDF.scr	schtasks.exe
PID 4668 wrote to memory of 4500	4668	New products_Inquiry00000000PDF.scr	New products_Inquiry00000000PDF.scr
PID 4668 wrote to memory of 4500	4668	New products_Inquiry00000000PDF.scr	New products_Inquiry00000000PDF.scr
PID 4668 wrote to memory of 4500	4668	New products_Inquiry00000000PDF.scr	New products_Inquiry00000000PDF.scr
PID 4668 wrote to memory of 4512	4668	New products_Inquiry00000000PDF.scr	New products_Inquiry00000000PDF.scr
PID 4668 wrote to memory of 4512	4668	New products_Inquiry00000000PDF.scr	New products_Inquiry00000000PDF.scr
PID 4668 wrote to memory of 4512	4668	New products_Inquiry00000000PDF.scr	New products_Inquiry00000000PDF.scr
PID 4668 wrote to memory of 4512	4668	New products_Inquiry00000000PDF.scr	New products_Inquiry00000000PDF.scr
PID 4668 wrote to memory of 4512	4668	New products_Inquiry00000000PDF.scr	New products_Inquiry00000000PDF.scr
PID 4668 wrote to memory of 4512	4668	New products_Inquiry00000000PDF.scr	New products_Inquiry00000000PDF.scr
PID 4668 wrote to memory of 4512	4668	New products_Inquiry00000000PDF.scr	New products_Inquiry00000000PDF.scr
PID 4668 wrote to memory of 4512	4668	New products_Inquiry00000000PDF.scr	New products_Inquiry00000000PDF.scr

outlook_office_path 1 IoCs

Processes:

New products_Inquiry00000000PDF.scr

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	New products_Inquiry00000000PDF.scr

outlook_win_path 1 IoCs

Processes:

New products_Inquiry00000000PDF.scr

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	New products_Inquiry00000000PDF.scr

C:\Users\Admin\AppData\Local\Temp\New products_Inquiry00000000PDF.scr
"C:\Users\Admin\AppData\Local\Temp\New products_Inquiry00000000PDF.scr" /S
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4668

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DrndlXgU" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBB85.tmp"
2⤵
- Creates scheduled task(s)
PID:3960

C:\Users\Admin\AppData\Local\Temp\New products_Inquiry00000000PDF.scr
"{path}"
2⤵
PID:4500

C:\Users\Admin\AppData\Local\Temp\New products_Inquiry00000000PDF.scr
"{path}"
2⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4512

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\New products_Inquiry00000000PDF.scr.log
Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpBB85.tmp
Filesize
1KB

MD5
d8dde1fd32f747b0c1e95bdc092e5137

SHA1
fa9716a6be912794dbf9284a9b8387ffa7e9a30c

SHA256
57625bbba5911e5bbaff1016036610ef939e823314e64049374c782d4d9f996d

SHA512
a83509ecd004f2419c423b34d6a5a657bbd4ea9aece7acff91693564be5fe837a0b59eed9d5225a16e4b11ec0269b1322562a1b7b6f2f890ce3bd96864442579

Download Submit
memory/3960-135-0x0000000000000000-mapping.dmp

Download
memory/4500-137-0x0000000000000000-mapping.dmp

Download
memory/4512-164-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-196-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-650-0x0000000005770000-0x00000000057C0000-memory.dmp

Filesize
320KB

Download
memory/4512-649-0x00000000063B0000-0x0000000006416000-memory.dmp

Filesize
408KB

Download
memory/4512-138-0x0000000000000000-mapping.dmp

Download
memory/4512-139-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-202-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-142-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-144-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-146-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-150-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-148-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-152-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-154-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-156-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-158-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-160-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-168-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-200-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-198-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-162-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-170-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-172-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-174-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-176-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-178-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-180-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-182-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-184-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-186-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-188-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-190-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-192-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-194-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4512-166-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4668-134-0x000000000B040000-0x000000000B0DC000-memory.dmp

Filesize
624KB

Download
memory/4668-131-0x00000000078B0000-0x0000000007E54000-memory.dmp

Filesize
5.6MB

Download
memory/4668-130-0x0000000000430000-0x0000000000530000-memory.dmp

Filesize
1024KB

Download
memory/4668-132-0x00000000073E0000-0x0000000007472000-memory.dmp

Filesize
584KB

Download
memory/4668-133-0x00000000073B0000-0x00000000073BA000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads