masslogger | 68cfc485479b0e8c9d632ea389f3614e1c2ebd11fc79cc3075eaf005e361a155

Analysis

max time kernel
79s
max time network
83s
platform
windows7_x64
resource
win7-20220414-en
submitted
21-05-2022 00:22

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General

Target

inquiry specification.exe
Size

1.1MB
MD5

16c4321bc234cdab8a4d88ab7ec34dce
SHA1

5d14eca7122d63f168dda48f6d93cdc74493d265
SHA256

18e55619cb6c0b70275af3562d71f362114ac432ec97fbcd4ad8425113f6471a
SHA512

d3d5277cdcca9c99a3a797bb0bbf68f2fcdf41efef540e5c445006ec2893bd6c240e620efd78ebe559f608d6423e03d57e161ca03da5e618f4a95a288e368c2a

Score

10^/10

masslogger collection evasion ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\79FE0CC911\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.6.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.51 Location: United States Windows OS: Microsoft Windows 7 Ultimate 64bit Windows Serial Key: D4F6K-QK3RD-TMVMJ-BBMRX-3MBMV CPU: Intel Core Processor (Broadwell) GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 12:37:30 AM MassLogger Started: 5/21/2022 12:37:23 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\inquiry specification.exe MassLogger Melt: false MassLogger Exit after delivery: true As Administrator: True Processes:

Extracted

Credentials

Protocol: smtp
Host:
mail.samlogistics.pk
Port:
587
Username:
[email protected]
Password:
Seaimport121@

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/1624-64-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1624-65-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1624-67-0x00000000004ACD3E-mapping.dmp	family_masslogger
behavioral1/memory/1624-66-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1624-69-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1624-71-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1624-73-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1624-75-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1624-77-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1624-79-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1624-81-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1624-83-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1624-85-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1624-87-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1624-91-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1624-89-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1624-95-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1624-93-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1624-97-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1624-99-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1624-101-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1624-103-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1624-105-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1624-107-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1624-109-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1624-111-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1624-113-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1624-115-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1624-117-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1624-119-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1624-121-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1624-123-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger

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

Processes:

yara_rule

masslogger_log_file
Modifies visibility of file extensions in Explorer 2 TTPs
evasion

Hidden Files and Directories
T1158

Modify Registry
T1112

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:

inquiry specification.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Control Panel\International\Geo\Nation	inquiry specification.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:

inquiry specification.exe

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

inquiry specification.exe

description pid process target process

PID 872 set thread context of 1624 872 inquiry specification.exe inquiry specification.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

1728 schtasks.exe

flow	ioc
4	api.ipify.org

description	pid	process	target process
PID 872 set thread context of 1624	872	inquiry specification.exe	inquiry specification.exe

pid	process
1728	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

inquiry specification.exeinquiry specification.exe

pid	process
872	inquiry specification.exe
872	inquiry specification.exe
872	inquiry specification.exe
872	inquiry specification.exe
1624	inquiry specification.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

inquiry specification.exeinquiry specification.exe

description pid process

Token: SeDebugPrivilege 872 inquiry specification.exe
Token: SeDebugPrivilege 1624 inquiry specification.exe

description	pid	process
Token: SeDebugPrivilege	872	inquiry specification.exe
Token: SeDebugPrivilege	1624	inquiry specification.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

inquiry specification.exe

description	pid	process	target process
PID 872 wrote to memory of 1728	872	inquiry specification.exe	schtasks.exe
PID 872 wrote to memory of 1728	872	inquiry specification.exe	schtasks.exe
PID 872 wrote to memory of 1728	872	inquiry specification.exe	schtasks.exe
PID 872 wrote to memory of 1728	872	inquiry specification.exe	schtasks.exe
PID 872 wrote to memory of 1624	872	inquiry specification.exe	inquiry specification.exe
PID 872 wrote to memory of 1624	872	inquiry specification.exe	inquiry specification.exe
PID 872 wrote to memory of 1624	872	inquiry specification.exe	inquiry specification.exe
PID 872 wrote to memory of 1624	872	inquiry specification.exe	inquiry specification.exe
PID 872 wrote to memory of 1624	872	inquiry specification.exe	inquiry specification.exe
PID 872 wrote to memory of 1624	872	inquiry specification.exe	inquiry specification.exe
PID 872 wrote to memory of 1624	872	inquiry specification.exe	inquiry specification.exe
PID 872 wrote to memory of 1624	872	inquiry specification.exe	inquiry specification.exe
PID 872 wrote to memory of 1624	872	inquiry specification.exe	inquiry specification.exe

outlook_office_path 1 IoCs

Processes:

inquiry specification.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	inquiry specification.exe

outlook_win_path 1 IoCs

Processes:

inquiry specification.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	inquiry specification.exe

C:\Users\Admin\AppData\Local\Temp\inquiry specification.exe
"C:\Users\Admin\AppData\Local\Temp\inquiry specification.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:872

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HNlszk" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB4FE.tmp"
2⤵
- Creates scheduled task(s)
PID:1728

C:\Users\Admin\AppData\Local\Temp\inquiry specification.exe
"{path}"
2⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1624

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Hidden Files and Directories

T1158

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

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

C:\Users\Admin\AppData\Local\Temp\tmpB4FE.tmp

Filesize
1KB

MD5
1869a1dccfc63ff18f2a39fa60f553d1

SHA1
fd9103d616f163697fb08fcd2c39302eb5cf4dcd

SHA256
23886b6f29fcc0e79e8af19556e0eda7bfff78fa4ef529a4216ee8b4aa7d61b7

SHA512
99f0929ff206db42b389402a005cad7a9e6cd694a0a26a2a1ad2502935c1e093117d726b1048caf379f64c6e939b495ce28930df425ca09af95cd599b1e099ec

Download Submit
memory/872-55-0x00000000768D1000-0x00000000768D3000-memory.dmp

Filesize
8KB

Download
memory/872-56-0x00000000003D0000-0x00000000003E0000-memory.dmp

Filesize
64KB

Download
memory/872-57-0x00000000054D0000-0x0000000005598000-memory.dmp

Filesize
800KB

Download
memory/872-58-0x0000000006360000-0x0000000006412000-memory.dmp

Filesize
712KB

Download
memory/872-54-0x0000000000D60000-0x0000000000E8A000-memory.dmp

Filesize
1.2MB

Download
memory/1624-87-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-95-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-62-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-64-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-65-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-67-0x00000000004ACD3E-mapping.dmp

Download
memory/1624-66-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-69-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-71-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-73-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-75-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-77-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-79-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-81-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-83-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-85-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-591-0x0000000004400000-0x0000000004414000-memory.dmp

Filesize
80KB

Download
memory/1624-91-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-89-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-61-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-93-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-97-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-99-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-101-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-103-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-105-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-107-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-109-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-111-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-113-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-115-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-117-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-119-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-121-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-123-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1624-588-0x0000000000C70000-0x0000000000CB4000-memory.dmp

Filesize
272KB

Download
memory/1624-590-0x0000000004E75000-0x0000000004E86000-memory.dmp

Filesize
68KB

Download
memory/1728-59-0x0000000000000000-mapping.dmp

Download