masslogger | a262a5a7fee574f02e945b10f56fb85946ec464af503c1cb26eb83e44afebcfe

General

Target

Enquiry.exe
Size

797KB
MD5

f71557e9155556d4f0ea0e03b307f11d
SHA1

a04a977026b26e1da0f43ba3fd6a1112df109db9
SHA256

1f4f66b6c25fcf9e510c93af0fb57942013de942175617a7b3a515709a44bed5
SHA512

8a575f1a4364f35d3187cb9eb117a7bfdbc4d152ce2a72bfbca4dc80f6007493109de56ec4e870a2486df30bd17904970f08c463119280df07b06f7d8c9596f7

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\F95B724EDE\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.7.1 ################################################################# ### Logger Details ### User Name: Admin IP: 127.0.0.1 Location: United States Windows OS: Microsoft Windows 10 Pro64bit Windows Serial Key: W269N-WFGWX-YVC9B-4J6C9-T83GX CPU: Intel Core Processor (Broadwell) GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 2:32:47 PM MassLogger Started: 5/21/2022 2:32:34 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\Enquiry.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

Signatures

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

MassLogger Main Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1448-138-0x0000000000400000-0x00000000004A8000-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:

Enquiry.exeEnquiry.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	Enquiry.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	Enquiry.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:

Enquiry.exe

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

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

Processes:

Enquiry.exe

description pid process target process

PID 4304 set thread context of 1448 4304 Enquiry.exe Enquiry.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

4428 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

Enquiry.exe

pid process

1448 Enquiry.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Enquiry.exeEnquiry.exe

pid process

4304 Enquiry.exe
4304 Enquiry.exe
1448 Enquiry.exe
1448 Enquiry.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Enquiry.exeEnquiry.exe

description pid process

Token: SeDebugPrivilege 4304 Enquiry.exe
Token: SeDebugPrivilege 1448 Enquiry.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Enquiry.exe

pid process

1448 Enquiry.exe

flow	ioc
36	api.ipify.org

description	pid	process	target process
PID 4304 set thread context of 1448	4304	Enquiry.exe	Enquiry.exe

pid	process
4428	schtasks.exe

pid	process
1448	Enquiry.exe

pid	process
4304	Enquiry.exe
4304	Enquiry.exe
1448	Enquiry.exe
1448	Enquiry.exe

description	pid	process
Token: SeDebugPrivilege	4304	Enquiry.exe
Token: SeDebugPrivilege	1448	Enquiry.exe

pid	process
1448	Enquiry.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

Enquiry.exe

description	pid	process	target process
PID 4304 wrote to memory of 4428	4304	Enquiry.exe	schtasks.exe
PID 4304 wrote to memory of 4428	4304	Enquiry.exe	schtasks.exe
PID 4304 wrote to memory of 4428	4304	Enquiry.exe	schtasks.exe
PID 4304 wrote to memory of 4552	4304	Enquiry.exe	Enquiry.exe
PID 4304 wrote to memory of 4552	4304	Enquiry.exe	Enquiry.exe
PID 4304 wrote to memory of 4552	4304	Enquiry.exe	Enquiry.exe
PID 4304 wrote to memory of 1448	4304	Enquiry.exe	Enquiry.exe
PID 4304 wrote to memory of 1448	4304	Enquiry.exe	Enquiry.exe
PID 4304 wrote to memory of 1448	4304	Enquiry.exe	Enquiry.exe
PID 4304 wrote to memory of 1448	4304	Enquiry.exe	Enquiry.exe
PID 4304 wrote to memory of 1448	4304	Enquiry.exe	Enquiry.exe
PID 4304 wrote to memory of 1448	4304	Enquiry.exe	Enquiry.exe
PID 4304 wrote to memory of 1448	4304	Enquiry.exe	Enquiry.exe
PID 4304 wrote to memory of 1448	4304	Enquiry.exe	Enquiry.exe

outlook_office_path 1 IoCs

Processes:

Enquiry.exe

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

outlook_win_path 1 IoCs

Processes:

Enquiry.exe

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	Enquiry.exe

C:\Users\Admin\AppData\Local\Temp\Enquiry.exe
"C:\Users\Admin\AppData\Local\Temp\Enquiry.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4304

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BOWbzufm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp343A.tmp"
2⤵
- Creates scheduled task(s)
PID:4428

C:\Users\Admin\AppData\Local\Temp\Enquiry.exe
"{path}"
2⤵
PID:4552

C:\Users\Admin\AppData\Local\Temp\Enquiry.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:1448

Network

MITRE ATT&CK Matrix ATT&CK 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

1

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Enquiry.exe.log
Filesize
507B

MD5
ab4c71d3ff6255edd4e5c1e09540f49e

SHA1
22e06bf4e258741b5df918061871cba998c50cea

SHA256
1690fec628f775dd3c3385b800eed126b37978ef2ffd592b024052724caafb5a

SHA512
8fa7d0045796e6cda7c28e2b9a690ef550619828c1b5d0ebf8e8367aff4bf4d9f63121e5b4f199d30cb8006eb584c6767f4c59150749b8256dab9dd0ebd9f1af

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp343A.tmp
Filesize
1KB

MD5
a3a0e7bc9aad5007388d7ed02fb5e282

SHA1
78d0cc0592df22fc9c85fe93c63e772c42d86ad4

SHA256
0e9f08d47dcfe21f0a080d7cb656ddf06ca599d67c0f67cc799cd1ad13a3bcc8

SHA512
519c3a0032545854003beee1d3ba04b648d0332b5e084d4ec46012f4a36e3feae43f8d108cee5407d7f6e19e49d2d9832d10059e0cc3ca96541fe4a03c07afda

Download Submit
memory/1448-137-0x0000000000000000-mapping.dmp

Download
memory/1448-142-0x0000000007B70000-0x0000000007BC0000-memory.dmp

Filesize
320KB

Download
memory/1448-141-0x0000000006DA0000-0x0000000006DAA000-memory.dmp

Filesize
40KB

Download
memory/1448-140-0x0000000005500000-0x0000000005566000-memory.dmp

Filesize
408KB

Download
memory/1448-138-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/4304-133-0x00000000061E0000-0x0000000006784000-memory.dmp

Filesize
5.6MB

Download
memory/4304-130-0x0000000000660000-0x000000000072E000-memory.dmp

Filesize
824KB

Download
memory/4304-132-0x00000000051B0000-0x0000000005242000-memory.dmp

Filesize
584KB

Download
memory/4304-131-0x0000000005070000-0x000000000510C000-memory.dmp

Filesize
624KB

Download
memory/4428-134-0x0000000000000000-mapping.dmp

Download
memory/4552-136-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads